DNJ IV151 intake valve for the 2003-2006 Jeep Wrangler 4-cylinder 2.4L and other vehicles opens on the camshaft's timing to let air into the combustion chamber. Each valve is application-specific.
- Regulates the air entering the combustion chamber for efficient engine breathing
- Stainless steel construction for durability at high operating temperatures
- Black nitride coating that adds wear resistance, reduces friction, improves corrosion protection and promotes heat dissipation
- Built to resist warping and thermal fatigue under severe thermal and mechanical stress
Quick facts
- Part: DNJ IV151 intake valve
- Also called: engine intake valve
- Fits: the 2003-2006 Jeep Wrangler 4-cylinder 2.4L and other vehicles
- Material: Stainless steel
- Condition: New
A rough idle, misfires or a drop in power can mean an intake valve is worn or burned, though a worn valve guide or a failing valve stem seal can be behind them too, so find the cause before you replace the valve. This listing is one valve; the 2.4L engine takes eight, two for each of its four cylinders.
Fits
The 2003-2006 Jeep Wrangler 4-cylinder 2.4L, the 2002-2005 Jeep Liberty 4-cylinder 2.4L and the 1996-1997 Dodge Grand Caravan 4-cylinder 2.4L take this valve, along with many other vehicles. It is a direct-fit replacement for these vehicles. If your car is not named here, look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 8
- Length: 111.8 mm
- Stem diameter: 6 mm
- Valve head diameter: 34.9 mm
- Lock grooves: 3
Build and materials
- Material: Stainless steel
- Coating: Black nitride
- Condition: New
- Country of origin: Taiwan
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does DNJ IV151 work as an intake valve for the 2002-2005 Jeep Liberty 4-cylinder 2.4L?
Yes. DNJ IV151 is an application-specific, direct-fit replacement for the 2002-2005 Jeep Liberty 4-cylinder 2.4L, which takes eight valves.
What are the stem and head diameters of the DNJ IV151 intake valve?
DNJ IV151 has a 6 mm stem and a 34.9 mm valve head. Overall length is 111.8 mm, and the stem has three lock grooves.
Is this valve stainless steel, and what does the black nitride coating do?
Yes, the valve is stainless steel with a black nitride coating. The coating adds wear resistance, reduces friction, improves corrosion protection and promotes heat dissipation.
Can a rough idle come from a worn engine intake valve?
Yes, it can. Misfires or a drop in power are other signs of a worn valve, and a shop can run the tests that show whether the valves are sealing.
Is the DNJ IV151 intake valve made to OEM quality standards?
Yes. DNJ IV151 is made to meet or exceed OEM quality standards, and each valve is application-specific. This listing is one valve.
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