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Caterpillar · Electrical & Lighting
1381011
In stock · ships from Knoxville
This is an engine wiring harness for the Caterpillar 3406E 14.6L diesel engine.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
Caterpillar
Other applications
Caterpillar
Other applications
Primarily fits the CAT 3406E engine; also referenced for the R2900 underground mining truck. Exact chassis applications depend on whether the engine is standard equipment in a specific truck model. This is an engine-side harness, not a cab-to-engine chassis harness.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It serves as the central nervous system of the engine, transmitting signals and power between the Electronic Control Module (ECM) and critical components like fuel injectors and sensors. Over time, the original harness can suffer from heat damage, chafing, or corrosion, leading to intermittent electrical problems or engine no-starts. Replacing it with a working harness resolves these complex wiring faults and restores reliable engine performance.
Part Number: 1381011
ENGINE HARNESS
Dealer: Post Onsite
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Parts commonly needed alongside electrical & lighting
