DNJ
DNJ Cylinder Head Spacer Shim 1997-2008 Ford, Mercury 3.8L-4.2L
DNJ Cylinder Head Spacer Shim 1997-2008 Ford, Mercury 3.8L-4.2L
Regular price
$39.99 USD
Regular price
$62.38 USD
Sale price
$39.99 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Listed for: 1997–2008 Ford and MercuryFitment notes & questions
Cylinder Head Spacer Shim by DNJ for 1997–2008 Ford and Mercury with the 3.8L engine. A cracked or warped head usually shows up as overheating or coolant loss.
Quick facts
- Brand: DNJ
- Part type: Cylinder head
- Listed for: 1997–2008 Ford and Mercury
- Engine: 3.8L
- Engine code: VIN 2 N/R 12V OHV
- Part number: HS4123
Listed fitment
- [1997-2008] FORD / V6 / 3.8L, 3.9L, 4.2L / 232, 238, 256 OHV 12V [(TRITON)]
Good to know
- Notes: 0.020 Thick; Use on Engine Block Side
- 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: Use new head bolts if your engine calls for torque-to-yield bolts, and torque in the correct sequence.

DNJ cylinder head for the Ford and Mercury: what to know
A cracked or warped head usually shows up as overheating or coolant loss.
Fitment notes
- Listed for: 1997–2008 Ford and Mercury.
- Model years: 1997–2008. If your year sits at the edge of the range, check the details above.
- 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. Always new with a head.
- Coolant and oil. Refill both after the job.
More for your car: Mercury Parts · Ford Parts · Engine
Questions about Ford and Mercury cylinder head
Will this fit my Ford and Mercury?
It is listed for the 1997–2008 Ford and Mercury. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
Is the head assembled or bare?
Check the title and details below; listings say whether valves and springs are included.
Where do specs and warranty details come from?
From DNJ. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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