Item Description
Genuine Caterpillar Harness Assembly-Engine HARNESS AS-E
Part Number: 341-5723 / 3415723
Component Type: Heavy Equipment Engine Electrical Wiring Loom
Brand: Caterpillar CAT
Condition: Brand New (Never Installed Factory OEM Stock)
Description and Application
Up for sale is a brand new, genuine Caterpillar 341-5723 Engine Harness Assembly (HARNESS AS-E). This premium original equipment manufacturer (OEM) wiring loom acts as the primary data and power network running directly across the engine architecture. It is engineered with custom chemical-, fuel-, and oil-resistant braided insulation, factory-molded locking terminal connectors, and heavy-duty moisture-sealing boots. It is built specifically to survive extreme engine compartment thermal cycles, high temperatures, and severe mechanical vibrations typical of heavy industrial work zones.
Compatible Models
Specific machinery model compatibility lists for this engine wiring layout are restricted to internal dealership service matrices. Because Caterpillar engine harnesses rely completely on specific engine serial number breaks, tier emissions packages, and unique factory build variations, this harness group fits select configurations across targeted equipment asset lines. Technicians and fleet mechanics source this replacement part exclusively by matching the primary factory part number 341-5723. 
Fitment Verification Warning
ATTENTION BUYERS: Heavy equipment engine control components change drastically based on your unit’s internal option layout, engine model variant, and production factory prefix. Do not buy based on component guesses alone. Please verify this exact part number 341-5723 matches your machinery build configuration by querying your unique Serial Number S/N or Product Identification Number PIN directly on the official Cat® Parts Store or with a localized CAT dealer service counter prior to purchasing. 
International Buyers Notice