DNJ
DNJ Intake and Exhaust Manifolds Combination Gasket 1991-1998 Jeep 4.0L
DNJ Intake and Exhaust Manifolds Combination Gasket 1991-1998 Jeep 4.0L
Part number: MG1120
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Listed for: 1991–1998 JeepFitment notes & questions
Intake and Exhaust Manifolds Combination Gasket by DNJ for 1991–1998 Jeep 4 with the 4.0L engine. Cracked manifolds and broken studs cause ticking exhaust leaks, often worst when the engine is cold.
Quick facts
- Brand: DNJ
- Part type: Exhaust manifold
- Listed for: 1991–1998 Jeep 4
- Engine: 4.0L
- Engine code: VIN S 12V OHV
- Part number: MG1120
Listed fitment
- [1991-1998] JEEP / L6 / 4.0L / 242 OHV 12V
Good to know
- Notes: Intake and Exhaust
- 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 gaskets and studs, and check emissions rules where you live before changing headers.

DNJ exhaust manifold for the Jeep: what to know
Cracked manifolds and broken studs cause ticking exhaust leaks, often worst when the engine is cold.
Fitment notes
- Listed for: 1991–1998 Jeep.
- Model years: 1991–1998. Parts can change mid-generation, so match the exact year.
- 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? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Exhaust manifold gaskets. Always new.
- Studs and nuts. Old studs often break on removal.
More for your car: Jeep Parts · All Exhaust Manifolds · Exhaust
Questions about Jeep exhaust manifold
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