XJ Knowledge Base

Technical guides, fitment information and real-world knowledge to help keep your XJ on the road.

Fitment starts with evidence. Our guides identify their sources and scope; a factory specification is not an interchange guarantee.

FIELD NOTES / 01

Read the catalog before you match the part.

Why the line, body, engine and transmission columns matter in the 2001 XJ catalog.

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FIELD NOTES / 02

2001 XJ transmission names: a factory reference.

The factory specification sheet identifies the NVG 3550 manual and AW4 automatic.

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FIELD NOTES / 03

2001 XJ transfer cases: NV 231 and NV 242.

A source-scoped reference to the transfer cases described in the 2001 factory specifications.

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What we research

Fitment & Interchange, Electrical & Wiring, Interior, Drivetrain, Engine Management, HVAC, OEM Part Identification, Model-Year Differences, Repair & Diagnostics, Factory Information.

Need help with an overhead console, cluster, PCM, TCM or wiring harness? Send the full label and connector photos with your vehicle details.

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