Technical Service Bulletin 42-060 — 2021 KENWORTH T680
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 42-060 |
| Manufacturer | |
| Vehicle | 2021 KENWORTH T680 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Fix As Fail - Certain chassis, equipped with an RCX230 Horton fan clutch and a Cummins X15 or ISX12N engine, are experiencing an adapter harness failure. This failure causes the fan to remain activated while the truck is in operation and may result in a check engine light and diagnostic trouble codes.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.