Diesel Performance Parts
4JJ1 Valve Stem Seals
4JJ1 Valve Stem Seals
Taxes excluded. Shipping calculated at checkout.
Couldn't load pickup availability
4JJ1 Valve Stem Seals
DPP Quality Aftermarket | Suits 4JJ1-TC & 4JJ1-TCX
Replacement valve stem seals for the Isuzu 4JJ1. Once the seals harden with age and heat they lose lip tension and let oil down the guides, which shows up as blue smoke on start-up and carbon building where it does no favours. If the head is off, they get replaced.
Fitment
- Isuzu 4JJ1-TC
- Isuzu 4JJ1-TCX
Doing the head properly? Pair with the 4JJ1 Performance Intake Valves and Exhaust Valves.
Shipping & Payment
- Free Express Shipping Australia-Wide
- Buy Now, Pay Later: Afterpay, Humm, Klarna & Zip
Frequently Asked Questions
Q: What causes stem seals to fail?
A: Heat and age. The rubber hardens, the lip stops sealing against the stem, and oil starts passing down the guide.
Q: Are these genuine Isuzu?
A: No, these are quality aftermarket seals made in Taiwan by DPP.
Stop the Blue Smoke on Start-Up
DPP valve stem seals for the Isuzu 4JJ1-TC and TCX. Made in Taiwan. Free express shipping Australia-wide.
Disclaimer: Common Rail Cowboys is not affiliated with Isuzu Motors. Engine components require professional installation.
