DNJ
DNJ 2007 Isuzu Ascender 4.2L Cylinder Head Bolt
DNJ 2007 Isuzu Ascender 4.2L Cylinder Head Bolt
Part number: HBK3138_57
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- Free fitment check before you order
Listed for: Isuzu Ascender 4.2LFitment notes & questions
2007 Isuzu Ascender 4.2L Cylinder Head Bolt by DNJ for 2007 Isuzu Ascender 4 with the 4.2L engine. Many modern engines use torque-to-yield head bolts that stretch when tightened, so they should not be reused.
Quick facts
- Brand: DNJ
- Part type: Head bolt set
- Listed for: 2007 Isuzu Ascender 4
- Engine: 4.2L
- Engine code: VIN S Vortec 24V DOHC
- Part number: HBK3138_57
Listed fitment
- [2002-2012] GM, ISUZU, SAAB / L4, L5, L6 / 2.8L, 2.9L, 3.5L, 3.7L, 4.2L / 169, 178, 211, 223, 256 DOHC 16V, 20V, 24V [(LK5, LL8, LLR, LLV, VORTEC)]
Good to know
- Notes: LL8, One Set Services Complete Engine
- Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
Tip: Clean the threads in the block, follow the torque sequence and angle steps for your engine, and do not reuse stretch bolts.

DNJ head bolt set for the Isuzu Ascender 4.2L: what to know
Many modern engines use torque-to-yield head bolts that stretch when tightened, so they should not be reused.
Fitment notes
- Listed for: Isuzu Ascender 4.2L.
- Engine: match the engine size and code to your vehicle; the same model often came with several engines.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentWhat else to plan for
- Head gasket. Bolts and gasket go on together.
- Thread chaser. Clean block threads give accurate torque.
More for your car: Isuzu Parts · Engine
Questions about Isuzu Ascender 4.2L head bolt set
Will this fit my Isuzu Ascender 4.2L?
Can I reuse my old head bolts?
Where do specs and warranty details come from?
Questions & answers
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