Refund policy

Refund, Returns & Warranty Policy – Common Rail Cowboys

Last updated: 14/07/2026

This Refund, Returns & Warranty Policy ("Policy") applies to all purchases from Common Rail Cowboys (ABN 60 640 110 112), unless stated otherwise.

Before You Send Anything Back: Read This

Three questions decide how your return gets handled:

1. Is the part faulty? Then stop. Don't remove it, don't post it. Text us first. Fault claims run under Sections 5–10, none of the change-of-mind restrictions apply, and injector claims are settled on our Hartridge bench with a test report you receive. Your Australian Consumer Law rights sit above everything in this document.

2. Wrong part or changed your mind? You've got 30 days from delivery, provided it's unfitted, unused, in original packaging, and we can resell it as new. A 20% restocking fee applies (up to 25% by condition), you cover return freight, and where your order shipped free, our actual outbound freight cost comes off the refund too. Take store credit instead of a refund and we'll skip the restocking fee, but the freight deduction still applies.

3. Is it even returnable? Some things aren't, for change of mind: bench-built and modified injectors (coded to your order), genuine parts, anything electrical, turbos and turbo kits, clutch kits and flywheels, opened fuel-system and seal kits, pistons and engine internals, fitted or run parts, special orders, clearance. Full list in Section 3.3.

Every return needs approval before it ships: text or email with your order number and the reason. Boxes that arrive unannounced don't get processed.

1. Overview & Relationship with Australian Consumer Law

This Policy sets out our refund and warranty terms and operates in addition to your rights under the Australian Consumer Law (ACL). Nothing in this Policy limits or excludes any rights or remedies you may have under the ACL.
Proof of purchase is required for all claims. We may also request vehicle details, odometer readings, service history and diagnostic information.

2. Your Rights Under the Australian Consumer Law

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Our services come with guarantees that cannot be excluded under the Australian Consumer Law. For major failures with the service, you are entitled: to cancel your service contract with us; and to a refund for the unused portion, or to compensation for its reduced value. You are also entitled to be compensated for any other reasonably foreseeable loss or damage. If the failure does not amount to a major failure, you are entitled to have problems with the service rectified in a reasonable time and, if this is not done, to cancel your contract and obtain a refund for the unused portion of the contract.

Where the ACL applies, it prevails over any inconsistent term in this Policy.

3. Change-of-Mind Returns

Bought the wrong part, or just don't need it anymore? No dramas, we'll take it back if the conditions below are met. If the part is faulty, this section doesn't apply: see Sections 5–10, and none of the exclusions below affect a genuine fault claim.

3.1 How to Request a Return

Every return must be approved before it's sent. Contact us with your order number, the item, and the reason for return:

Text: 0483 930 906 (fastest)
Email: info@commonrailcowboys.com

Once approved, we'll give you the return address and a return reference. Write the return reference and your order number on the outside of the box, and include a note inside with your order number. Returns sent without prior approval will not be accepted.

Approved returns must be lodged with a tracked carrier within 14 days of approval. If the return isn't lodged within that window, the approval lapses and a new return request is required, which may fall outside the 30-day return period in Section 3.2.

3.2 Eligibility

A change-of-mind return will be accepted where all of the following are met:

The return is requested within 30 days of delivery
The item is unfitted, unused, and never run on a vehicle
All original packaging, fittings, hardware, and documentation are included and undamaged
The item is in a condition we can honestly resell as new

"Resalable as new" is assessed on arrival, not on description: parts that come back with workshop grime, rattling hardware, or a crushed box don't pass, no matter how briefly they were out of it.

3.3 Items Excluded from Change-of-Mind Returns

The following can't be returned for change of mind, for build-to-order, safety, and resale-integrity reasons:

Modified and bench-built injectors and nozzle sets (including MCR +30% / +50% sets). These are built, flow-matched, and individually coded to your order on our Hartridge bench: they're your injectors, not shelf stock. See also Section 3A.
Genuine (OEM) parts, including genuine Denso injectors, pumps, and SCVs. Once a genuine part leaves our supply chain we can no longer vouch for its provenance, and we won't restock a part we can't stand behind as genuine.
Electrical items: injectors, SCVs, sensors, actuators, solenoids, throttle controllers and similar. There's no way to verify these haven't been connected or energised.
Turbochargers and turbo kits (new or reconditioned, any brand). The condition of the rotating assembly, actuator, and oil feed can't be verified once a turbo has left our hands, and a kit that comes back incomplete or shelf-worn can't be resold as new.
Clutches, clutch kits, and flywheels. Friction surfaces, splines, and machined faces can't be verified as never fitted or never turned.
Fuel-system components once factory packaging or sealing is opened: high-pressure pumps, fuel rails, injector lines and pipes. Fuel-system cleanliness can't be guaranteed for resale once the seals are broken.
Pistons and precision engine internals: pistons, bearings, and valvetrain components, where handling and storage outside our control can compromise tolerances and surfaces we can't re-verify.
Opened seal kits, gasket kits, and washer kits
Anything that has been fitted, run, scratched, marked, or damaged
Special orders: anything we ordered in specifically for you (see also Section 3B)
Clearance items: sold as final sale

These exclusions apply to change-of-mind returns only. They do not affect your rights in relation to faulty goods or your rights under the Australian Consumer Law.

3.4 Restocking Fee & Condition Deduction

Approved change-of-mind returns taken as a refund attract a restocking fee of 20%, deducted from the refund. This covers inspection, handling, and repackaging. Where the item's condition means it will likely need to be discounted to be resalable, the deduction is increased to reflect that, up to 25%.

Prefer store credit? The restocking fee is waived for items that arrive genuinely resaleable as new. Credit never expires and can be used on anything in the store. Where an item's condition means it will need to be discounted to sell, a condition deduction of up to 25% applies to the credit instead, reflecting the same lost value. The waiver rewards clean returns; it doesn't cover condition.

Condition is assessed on arrival. Where a condition deduction applies, we'll tell you the amount, with photos, before the refund or credit is finalised. The freight deduction in Section 3.5 applies to refunds and store credit the same way.

3.5 Shipping on Change-of-Mind Returns

Return freight is at your cost.
Original shipping charges and shipping protection are non-refundable.
Where your order shipped under free or discounted shipping, the actual outbound freight cost we incurred to send it to you may be deducted from a change-of-mind refund or store credit, in addition to any restocking fee. We'll tell you the amount when your return is approved, before you send anything.
Bulky and high-freight items: for large, heavy, or remote-delivery items (intercooler kits, exhaust systems, and similar), we may decline a change-of-mind return where the combined freight costs would make the return uneconomic, and offer store credit or another resolution instead. If you're unsure whether your item qualifies, ask before ordering. We'd rather answer questions up front than knock back a return later.
The item remains your responsibility until it's in our hands. Use a tracked service, keep the tracking number, and photograph the item and packaging before it ships. If a courier damages it on the way back, that claim is between you and the courier.

3.6 Returns That Don't Meet the Conditions

If a return arrives that doesn't meet the conditions above (not approved, not eligible, or not resalable), no refund or credit is issued. We'll notify you with photos of the condition as received and hold the item for 30 days for you to arrange and pay return freight. Items unclaimed after 30 days are forfeited.

3.7 Refund Processing

Once a return is received and assessed, approved refunds are processed within 14 days, to your original payment method wherever possible. Your bank or payment provider may take additional time to show the funds. If the original method isn't available, we'll contact you for account details and pay by EFT.

3A. Custom-Made, Painted & Personalised Products

Some products supplied by Common Rail Cowboys are custom-made, painted, colour-matched, fabricated, built-to-order or otherwise personalised ("Custom Products").

No change-of-mind refunds: Custom Products cannot be cancelled or refunded once production has commenced.
Non-refundable labour: Labour, paint, fabrication, machining and preparation costs are non-refundable except where required by the ACL.
ACL rights unaffected: This clause does not limit your statutory rights.

3B. Supplier-Sourced & Third-Party Stocked Items

Some products sold by Common Rail Cowboys are sourced directly from third-party manufacturers, distributors, suppliers or wholesalers and may not be held in our own inventory.

For change-of-mind, discretionary-return and cancellation requests, supplier return restrictions, restocking charges, freight costs and time limits may affect whether we can accept a return or offer a refund.
Where a supplier-sourced product is eligible for a return under Section 3, we may require supplier approval before the item is returned or a refund is issued.
This clause applies only to change-of-mind returns and cancellations. It does not limit any rights or remedies available under the Australian Consumer Law.

3C. Promotional Free Gifts & Bonus Parts

From time to time, Common Rail Cowboys may offer free gifts or bonus parts with qualifying purchases ("Promotional Items").

Where a Promotional Item has been included with an order, the retail value of that item may be deducted from any refund amount if the qualifying product is returned, unless the Promotional Item is also returned unused and in original condition.
The retail value of any Promotional Item will be clearly stated at the time of the promotion.
Promotional Items are subject to stock availability and may be withdrawn at any time without notice.
Promotions are valid for the advertised period only and are available to eligible customers as specified in the promotional terms.
This clause does not limit your rights under the ACL.

3D. Order Cancellations

Orders cannot be cancelled once they have been dispatched. Once delivered, the change-of-mind return process in Section 3 applies instead.
Cancellations of orders that have not yet been dispatched may be accepted at our discretion.
Cancellation fee: once payment has been processed, a cancellation fee of up to 5% of the order value applies to any accepted cancellation. This reflects costs we have already incurred and cannot recover, including unrecoverable payment processing and transaction fees (which are not returned to us when a payment is refunded, including card and buy-now-pay-later merchant fees), order handling and administration, and any packing or freight booking already carried out.
For supplier-sourced, special-order, backordered or third-party stocked items, a cancellation fee of up to 10% of the order value may apply once the item has been ordered from the supplier, unless our actual supplier, freight, payment processing, handling or restocking costs are higher.
Custom-made, painted, fabricated, machined, built-to-order, modified or personalised products cannot be cancelled once production, procurement, paint, fabrication, machining or preparation has commenced.
Any cancellation fee will be limited to our reasonable costs and losses incurred as a result of the cancellation, including payment processing fees, supplier charges, freight, handling, administration, paint, fabrication, machining or preparation costs.
This clause does not limit your rights under the Australian Consumer Law.

3E. International Orders & Returns

This Policy applies to orders shipped outside Australia, with the following additions.

Applicable consumer law: this Policy is framed under the Australian Consumer Law. Where mandatory consumer protection laws of your own country (for example, the New Zealand Consumer Guarantees Act) apply to your purchase, nothing in this Policy excludes or limits those rights.
Change-of-mind returns from overseas: the conditions in Section 3 apply. You are responsible for return freight, insurance, and all customs, duties, taxes, and brokerage charges in both directions. Returned goods must be correctly declared to customs as returned Australian goods. Any customs or clearance charges we incur to receive your return may be deducted from the refund or credit.
Import duties and taxes: duties, GST/VAT, or clearance fees you paid to your own customs authority or carrier on the original delivery are not ours to refund. Where your goods are returned, you may be entitled to claim these back from your local customs authority.
Currency: refunds are processed in the currency and amount of your original payment. We are not responsible for exchange-rate movements or conversion fees charged by your bank or payment provider between purchase and refund.
Fault and warranty claims from overseas: contact us before shipping anything. Photos, video, and diagnostic data let us assess most claims remotely and avoid unnecessary international freight. Where return for assessment is required, we will agree the freight arrangement with you in advance. Where a fault is confirmed under the applicable consumer law, return freight will be handled as that law requires.
Bulky and high-freight items: the uneconomic-return provisions in Section 3.5 apply with particular force to international orders.

4. Products Damaged in Transit

Transit damage must be reported as soon as possible after delivery.
All packaging must be retained and clear photos provided.
Shipping Protection claims are handled in accordance with the Shipping Protection terms.
If Shipping Protection was not purchased, remedies depend on the carrier and ACL obligations.

5. Warranty Coverage – General

To the extent permitted by law, our warranty is limited to repair, replacement or refund of the product, at our discretion.

Unless required by the ACL, our warranty does not cover:

labour, installation, tuning or removal costs;
diagnostic or inspection fees;
vehicle downtime or loss of income;
towing, storage or hire vehicle costs;
indirect or consequential loss, including but not limited to engine damage, additional repair costs, loss of vehicle use, loss of income, accommodation, towing or recovery expenses.

5.1 General Warranty Conditions & Exclusions

Warranty does not apply where failure is attributable to:

misuse, abuse, neglect or incorrect installation;
incorrect tuning, calibration or ECU configuration;
poor maintenance or contamination;
fuel quality issues, contaminated fuel, or use of non-compliant diesel;
modification or unauthorised repair;
failure caused by another component or vehicle system;
failure of engine components including but not limited to pistons, head gaskets, cylinder heads or bearings, regardless of whether such failure occurs in proximity to the use of our parts;
use in motorsport, racing, extreme off-road, marine or industrial applications unless expressly agreed in writing;
Boost / intake leaks: Damage caused by operating the vehicle with boost, intake or intercooler leaks is not covered.

We may require evidence of correct installation as a condition of any claim, including but not limited to photographs, workshop invoices or installer details. Where installation was performed by a third party, we may contact that party directly.

5.2 Manufacturer, Supplier & Third-Party Warranty Assessment

Some products sold by Common Rail Cowboys are manufactured, imported or supplied by third-party manufacturers, distributors, suppliers or wholesalers. Where a warranty claim relates to one of these products, we may be required to submit the claim to, and follow the reasonable assessment, information and return procedures of, the relevant manufacturer or supplier.

Depending on the product and nature of the claim, this may include requiring:

proof of purchase and product identification details;
clear photographs, videos, diagnostic reports, workshop invoices, installation details, tune files, service history or other information relevant to the claimed issue;
completion of a warranty claim, return-authorisation or product-assessment form;
return approval before the product is sent;
return of the product to Common Rail Cowboys, the manufacturer, supplier or an authorised specialist at a nominated address;
the product to be returned complete, clean, safely packaged and adequately protected from further damage in transit; and
that the product not be dismantled, repaired, modified, altered or replaced by another party before assessment, unless authorised by us in writing.

Where inspection by Common Rail Cowboys, a manufacturer, supplier or specialist is reasonably required, we may need to complete that assessment before making a final decision on the claim.

Supplier and manufacturer assessment timeframes may affect the overall claim timeframe. Common Rail Cowboys will remain your point of contact and will keep you reasonably informed throughout the process.

Where a claim is made under a manufacturer or supplier's voluntary warranty, the available outcome may include repair, replacement, exchange, credit or another remedy available under that warranty. Nothing in this clause limits or excludes any rights or remedies available under the Australian Consumer Law.

6. Injectors & Common Rail Parts

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Warranty does not cover contamination, fuel quality issues, incorrect installation, or tuning outside safe limits.
Nozzles are non-refundable once supplied.
Warranty does not apply to competition, highly modified or non-OEM applications unless agreed in writing.
Injector and common rail component claims may require bench testing, inspection, cleaning, diagnostic work or assessment by Common Rail Cowboys, the relevant manufacturer, supplier or an authorised specialist. Injectors returned to us for assessment are bench-tested in-house on our Hartridge Sabre CRi Expert, and you receive the test report: claims are settled with data, not opinions. Where testing confirms that no fault is present, or identifies contamination, incorrect installation, unsuitable tuning, fuel-system faults, electrical faults, component damage or another excluded external cause, reasonable inspection, testing, cleaning, administration and freight costs may apply in accordance with Section 10.1.

6A. Injector Testing & Bench Services (Customer-Supplied Components)

This section applies to bench testing, diagnostic, and assessment services performed on injectors and components that you supply to us (for example, our 1KD injector testing service), as distinct from products purchased from us.

What the fee buys: the testing fee covers the bench time, diagnosis, and the test report, not a particular result. The service is delivered once testing is performed and the report is issued. The fee is payable regardless of the outcome, and a result you weren't hoping for is not grounds for a refund.
Cancellation: you may cancel before testing commences for a refund less any freight or administration costs already incurred. Once testing has commenced, the fee is payable in full.
Your components, your risk in transit: customer-supplied components remain your property and are at your risk in transit in both directions. Use a tracked, insured service. Return freight after testing is at your cost unless otherwise agreed in writing.
Condition on arrival: we document the condition of components when they arrive. Components that arrive heavily contaminated, seized, disassembled, or physically damaged may be untestable or may require additional cleaning or work. We'll quote before proceeding, or return them untested at your cost.
Inherent testing risk: bench testing operates injectors at working pressures. A worn, contaminated, or failing injector may deteriorate or fail under test: that is the fault revealing itself, not damage caused by testing. We exercise due care and skill in accordance with the Australian Consumer Law, and we are not liable for the pre-existing condition, wear, or failure of customer-supplied components during properly conducted testing.
What the report is: a diagnostic assessment based on bench data at the time of test. It is not a warranty on customer-supplied components and is not a guarantee of future performance or service life. A component that tests within specification today can still fail later from wear, contamination, or vehicle-side causes.
Uncollected components: where tested components await return freight payment, we'll hold them for 30 days from notification. Components unclaimed after 30 days are forfeited.
Your ACL rights: our services come with guarantees under the Australian Consumer Law, including that they will be provided with due care and skill. Nothing in this section limits those rights.

7. Pistons & Engine Components

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Cracked, damaged or failed pistons are not covered where failure is attributable to detonation, pre-ignition, lean fuelling, excessive boost, overheating, incorrect installation, inherent design flaws or tuning outside safe limits.
A tune file or dyno sheet may be requested as part of any warranty assessment.
Known platform-specific design limitations (including but not limited to the 1KD-FTV's known susceptibility to piston cracking under standard and elevated cylinder pressures) are outside our control and do not constitute a product defect.

8. Turbocharger Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
The turbocharger must be returned unmodified for inspection.
Labour, removal, refitting and tuning costs are not covered.

Warranty may be void where:

the turbocharger is not correctly pre-oiled and primed at installation;
the turbocharger is not manually re-primed with oil where the engine has not been run for an extended period, including after storage, engine repairs, oil system work, or delayed first start;
oil return orientation is incorrect;
foreign material or sealant is present;
oil starvation, overspeeding or overheating is evident;
boost leaks, incorrect boost control or unsuitable ECU calibration are present;
the turbo has been tampered with or repaired by an unauthorised party.

9. Shipping Costs for Returns

Where a defect is confirmed under the Australian Consumer Law, reasonable return freight will be covered as required by law.
Where a warranty assessment requires a product to be returned to Common Rail Cowboys, a manufacturer, supplier or specialist, return instructions must be followed.
If no fault is found, the claim is not covered, or the issue is caused by an excluded or external factor, the customer is responsible for applicable freight, inspection, testing and assessment costs, subject to Section 10.1.
Shipping costs for change-of-mind returns are set out in Section 3.5.

10. Claim Process & Response Time

Claims must be lodged in writing within a reasonable time of fault discovery.
Products must be returned within 30 days of fault discovery to allow proper assessment. Delays in returning goods may affect our ability to determine the cause of failure.
Assessment is typically completed within 7–14 business days.

10.1 Assessment, Testing & Cost Recovery

Warranty claims may require inspection, testing, diagnosis or assessment by Common Rail Cowboys, the manufacturer, supplier or an independent specialist.
Where an assessment confirms that the product is not faulty, does not have a failure covered by the Australian Consumer Law, or that the issue was caused by an excluded or external factor, the customer is responsible for reasonable inspection, testing, diagnostic, cleaning, administration and freight costs.
For injector, turbocharger, fuel-system and other specialist component claims, an inspection and testing fee of up to $660 including GST may apply, plus applicable freight costs.
The amount charged will depend on the work reasonably required to inspect, test, diagnose and report on the claim. This may include specialist assessment, bench testing, strip-down inspection, cleaning, diagnostic work, administration, supplier charges and manufacturer assessment requirements.
Before arranging assessment where a charge may apply, we will provide a reasonable estimate of the likely inspection, testing, assessment and freight costs.
Pre-payment of assessment costs: For turbocharger, injector, fuel-system and other specialist component claims, the estimated assessment fee (fixed at the amount quoted when your claim is approved, up to $660 including GST) is payable before assessment commences. This fee is refunded in full, promptly and to your original payment method, where the assessment confirms a failure covered by the Australian Consumer Law consumer guarantees, in which case your reasonable return freight is also covered. Where no covered fault is found, the fee covers the strip-down, inspection, documentation and report (which you receive in full), and may at our discretion be credited toward the purchase of a replacement unit. This clause does not limit your rights under the Australian Consumer Law.
We may require payment of applicable inspection, testing, assessment, freight and administration costs before releasing or returning the product where no covered fault is found.
Where a defect is confirmed, costs will be handled in accordance with the Australian Consumer Law and any applicable manufacturer or supplier warranty process.

10.2 Replacement Parts Purchased Before Claim Outcome

If you choose to purchase a replacement product before a warranty claim has been assessed and finalised, that purchase is treated as a separate sale.
Purchasing a replacement product before the outcome of a claim does not create an entitlement to reimbursement, refund, credit, exchange or return of that replacement product, unless required by the Australian Consumer Law or agreed by us in writing.
Where a warranty claim is accepted, the available remedy will be determined in accordance with the Australian Consumer Law and, where applicable, the relevant manufacturer or supplier warranty process.

11. Limitation of Liability

To the extent permitted by law, liability is limited to repair, replacement or refund of the product.

12. Contact

Common Rail Cowboys
💬 Text: 0483 930 906 (fastest)
📧 info@commonrailcowboys.com

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