The Jeep 4.0L inline-6 engine is one of the most iconic powerplants ever produced for Jeep vehicles. Known for its low-end torque, mechanical simplicity, and exceptional longevity, this engine has powered countless Wranglers and Cherokees through demanding off-road and daily-driving conditions. Despite its reputation for durability, long service life and high mileage can eventually lead to internal wear.
Common issues such as oil consumption, piston wear, valve train noise, or loss of compression often indicate that internal components have reached the end of their service life. When repairs become frequent or ineffective, replacing the engine provides a more reliable long-term solution.
A remanufactured Jeep 4.0 engine from Gearhead Engines is rebuilt to OEM specifications to restore dependable performance while maintaining the rugged characteristics Jeep owners expect.
Why Choose a Gearhead Remanufactured Engine?
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Fully disassembled and rebuilt in-house
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Precision-machined to restore factory tolerances
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Updated internal components addressing common wear points
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Nationwide warranty coverage
Vehicle Compatibility
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Jeep Wrangler
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Jeep Cherokee
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Jeep Grand Cherokee
Common Signs You May Need an Engine Replacement
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Persistent engine knocking or ticking
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Excessive oil consumption
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Loss of torque or drivability
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Check engine light related to internal faults
Restore legendary Jeep reliability with a remanufactured 4.0L engine from Gearhead Engines.
