Diesel Performance Parts
1KD Upgraded Valve Springs
1KD Upgraded Valve Springs
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1KD Upgraded Valve Springs
Set of 16 | Suits 1KD-FTV & 2KD-FTV | Direct OEM Fit
Once a 1KD sees serious boost and RPM, factory springs let the valves float and the valvetrain starts writing cheques the engine cannot cash. These upgraded valve springs lift seat and open pressure well beyond stock while dropping straight into the standard head.
Specifications
| Spec | Figure |
|---|---|
| Installed pressure | 19.05 kg @ 34.29 mm (around +40% over OEM) |
| Open pressure | 34.01 kg @ 25.4 mm (around +37% over OEM) |
| Profile | 7 coils, 2.9 mm wire, anti-clockwise wind |
| Inner diameter | 17.8 mm |
| Outer diameter | 23.65 mm |
| Quantity | Set of 16 |
Why Upgrade?
- Prevents valve float under high boost and RPM
- Essential with oversized cams and heavy tuning
- Keeps valvetrain control where factory springs give up
- Compatible with OEM retainers and seats, no machining required
Fitment
- Toyota 1KD-FTV 3.0L
- Toyota 2KD-FTV 2.5L
Shipping & Payment
- Free Express Shipping Australia-Wide
- Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip
Frequently Asked Questions
Q: Do I need these on a stock 1KD?
A: No. They earn their keep once boost, fuel and RPM climb past standard, or when a bigger cam goes in.
Q: Do I need different retainers or seats?
A: No, they work with the OEM retainers and seats. Professional installation is recommended.
Q: Should I do stem seals at the same time?
A: Yes. The head is already apart, so fresh valve stem seals are cheap insurance.
Stop Valve Float Before It Stops You
Upgraded valve springs for 1KD and 2KD, set of 16. Around 40% more seat pressure than factory. Free express shipping Australia-wide.
Disclaimer: Common Rail Cowboys is not affiliated with Toyota Motor Corporation. Engine components require professional installation. Spring pressures quoted are manufacturer figures.
