OEM New External ECM Wiring Harness for Caterpillar CAT C9 engines, 330D L, 336D L hydraulic excavators, D6T tractors, 160M graders. Interchange part: 2358202, 235-8202. Prevents unexpected engine cutout logs, data link loss, sensor drift, and injection system fault alerts. 12-Month product tracking protection.
FIELD MAINTENANCE LOG: ECM LINK EXTERNAL HARNESS ASSEMBLY
[SECTION 01: SYSTEM PARAMETERS]
• Assembly Identity: Electronic Control Module External Wiring Harness / ECM Harness
• Interchange Catalog Reference: 235-8202 / 2358202
• Structural State: OEM New Inventory (Unused factory original build)
• Core Execution: Direct Plug-In Functional Replacement
• Protection Cycle: 12 Months Structural Component Warranty

[SECTION 02: ACTIVE CRITICAL DIAGNOSTICS]
Cracked, aged, or oil-soaked wiring runs across heavy equipment frames introduce circuit resistance spikes, causing random check-engine warning logs, intermittent sensor voltage dropouts, rough machine warm starts, or complete loss of communication with the vehicle dashboard tracking module.

[SECTION 03: VERIFIED EQUIPMENT REGISTER]
CAT Engine Series: C9 Blocks (Industrial, Petroleum), C9 Generator Set, Petroleum Package CX31-C9I, Petroleum Transmission TH31-E61
Tracked & Wheeled Excavators: 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN | M330D
Heavy Tractors & Loaders: D6R, D6R III, D6R STD, D6T, D7R XR | Track Loader 973D
Forestry Feller Bunchers: 2290, 2390, 2391, 2491, 2590, 511, 521, 522, 532, 541, 551, 552
Compactors, Scrapers & Support: 816F II, 815F II | Motor Grader 160M | Wheel Dozer 814F II | Wheel Scraper 627G, 637D, 637E, 637G | Mobile Hyd Power Unit 330D, 330D L, 336D L
[SECTION 04: MANDATORY ORDER COMPATIBILITY STEPS]
PRE-DISPATCH MANDATE: Please message us your Vehicle Identification Number (VIN) and clear photos of the active part block or VIN data plate immediately following your checkout.
[SECTION 05: PLATFORM POLICIES]
• Reliability: Premium quality items matched with immediate after-sales care pipelines.
• Updates: Manufactured and benchmark validated in absolute line with original specifications.
• Processing Terms: Transacted amount strictly handles unit cost and line transit. International processing duties or custom tariff clearance fees are the sole responsibility of the Buyer.