Exhaust / Intake Valve Kit 1987-1998 Jeep 4.0L L6

DNJ Engine Exhaust / Intake Valve Kit

Includes: Exhaust Valve x6, Intake Valve x6.

Engine Details: Nitride Coated, 1 Groove, 38.1mm Head Dia., 7.9mm Stem Dia., 125.5mm O.A.L., Exhaust, 48.5mm Head Dia., 124.8mm O.A.L., Intake.

Buyer's Guide: [1987-1998] JEEP / L6 / 4.0L / 242 OHV 12V

Part Warranty: 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.

1987-1998 Jeep 4.0L L6 Exhaust & Intake Valve Kits

The MPN VK121119 Exhaust/Intake Valve Kit is designed for a range of classic Jeep applications, including the 1987-1998 Jeep Cherokee, 1990 Jeep Wagoneer, 1987-1992 Jeep Comanche, 1993-1998 Jeep Grand Cherokee, and 1987-1998 Jeep Wrangler, all equipped with the legendary 4.0L L6 242cid 12V OHV engine. Known for its durability, strong low-end torque, and long service life, the Jeep 4.0L inline-six became a favorite among off-road enthusiasts and daily drivers alike, powering iconic vehicles such as the rugged Wrangler, versatile Cherokee, hardworking Comanche pickup, family-friendly Grand Cherokee, and dependable Wagoneer. Proper maintenance of the engine's exhaust and intake valves is critical to preserving performance, fuel efficiency, and overall reliability. When intake valves begin to fail, drivers may experience rough idling, misfires, hard starting, reduced engine power, poor fuel economy, loss of compression, and increased emissions, all of which can lead to more extensive engine damage if left unaddressed. Replacing worn valve components with the VK121119 kit helps ensure proper airflow into and out of the combustion chamber, supporting smooth operation and optimal engine performance. At Partsology, you'll find premium OEM-quality engine components backed by exceptional value, making it easy to keep your Jeep running strong without overspending. Whether you're restoring a classic Jeep or maintaining a trusted daily driver, Partsology offers high-quality engine parts at amazing prices to help extend the life of your 4.0L engine.