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Denso

HP3 Fuel Pump Seal Kit - Denso HP3 Seal Kit - 2 Rotor Pump Seal Kit - Suits 1KD, 4JJ1, 4D56, 4M41, 4N15, YD25, Duramax | Genuine Denso Components

HP3 Fuel Pump Seal Kit - Denso HP3 Seal Kit - 2 Rotor Pump Seal Kit - Suits 1KD, 4JJ1, 4D56, 4M41, 4N15, YD25, Duramax | Genuine Denso Components

$400.00 AUD
$400.00 AUD
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Lead time 1-2 weeks

1KD / 4JJ1 / 4D56 / 4M41 / 4N15 / YD25 / Duramax – Denso HP3 Seal Kit (2-Rotor)

 

🧰 Complete 2-Rotor Seal Kit 🔧 Stroker-Ready ✔ Genuine Denso Parts 🚚 Free Express AU
Complete Denso-spec seal and rebuild kit for 2-rotor HP3 pumps, suitable for standard OEM rebuilds and aftermarket stroker shaft installations. Covers all critical internal sealing points required to restore rail pressure stability and prevent internal leakage.
Kit Overview

Includes the correct genuine Denso components required to reseal a 2-rotor HP3 pump after disassembly, with correct coverage for both standard rebuilds and stroker shaft installations.

  • Correct seals for 2-rotor internal galleries
  • Covers high-pressure sealing points
  • Correct shaft seal for stroker installs
  • Restores lost rail pressure performance
  • Suitable for OEM and performance builds
Suitable For
  • Standard HP3 pump rebuilds
  • Aftermarket stroker shaft installations
  • Performance & high-boost applications
  • Professional diesel workshops
Included Components (Genuine Denso)
294009-0030 – Primary HP3 Seal / Overhaul Kit

Main HP3 housing & gallery seal pack.

2 × 294009-0940 – 2-Rotor Internal Seal Kits

Includes delivery valve seals, outlet valve seals, pump element sub-assembly O-rings & other 2-rotor-specific internals.

294197-0030 – Front Shaft / Drive Seal Kit

Front drive shaft seal – required for standard rebuilds and stroker shaft installs.

✔ Components Included

  • Plunger O-Rings
  • Feed Pump O-Rings
  • Front Shaft Seal
  • SCV Gasket & O-Rings
  • Pump Element Sub-Assembly O-Rings
  • 2 × Delivery / Outlet Valve Overhaul Kits

These components together cover all critical sealing points inside a 2-rotor HP3 pump.

Compatibility

This kit suits Denso HP3 pumps fitted to the following engines:

  • 1KD-FTV
  • 4D56
  • 4JJ1
  • 4M41
  • 4N15
  • Duramax (HP3-equipped models)
  • YD25

Fitment is determined by the pump model number, not the engine alone. Send us your pump ID plate if you want confirmation.

Important Notes
⚠️ Critical Information – 2-Rotor Pumps Only
  • Not compatible with HP4 pumps.
  • Designed for qualified diesel pump rebuilders.
  • No instructions supplied — technical experience required.
  • Clean-room level cleanliness is essential.
  • Incorrect seal selection or contamination will cause internal leakage and rail pressure loss.

HP3 pumps are extremely sensitive to seal condition. Reusing seals or mixing aftermarket O-rings commonly results in:

  • Internal leakage
  • Low or unstable rail pressure
  • Hard starting (hot or cold)
  • Premature pump failure
CRC Payments & Shipping
Payment Options
  • Visa, Mastercard, Amex
  • PayPal, Apple Pay, Google Pay
  • Afterpay, Zip, Klarna, Humm
Express Dispatch
  • Free Express Shipping Australia-Wide
  • Same-day dispatch before 12 pm AEST
  • Secure, insured packaging
Frequently Asked Questions (FAQ)
Is this the correct kit for a stroker shaft install?

Yes — it includes the correct shaft seal and internal O-rings required for stroker shaft builds.

Will this fit a three-rotor HP4 pump?

No — HP4 pumps use different seals and are not compatible.

Do you supply full HP3 rebuild kits?

Yes — contact us for full OEM rebuild kits, stroker shafts, or pump exchange services.

✔ Genuine Denso Components | 🔒 Secure Checkout | 🚚 Free Express Delivery Australia-Wide
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