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Access Jeep  wiring diagrams and repair procedures. Learn how to repair, install or remove a part, reset engine lights...
Jeep 401 Engine (V8, 401 cid, 6.6L)
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This Jeep 401/6.6L engine/motor can fit the Cherokee, CJ5, Wagoneer, J10, J20 and some other Jeep car and/or truck applications - for more details see your automobile manual.

1974 - 1978

1974 Jeep 401 Block #951. Head #090, 502. Crank #842, 725, 411
Engine DescriptionSizeVINPrice/Core
1974 Jeep 401 Block #951. Head #090, 502. Crank #842, 725, 411

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For troubleshooting tips and repair information on the Jeep 401/6.6L engine, please visit our Information page.