Description
Genuine Detroit Diesel OEM valve cover bolt and isolator assembly 23522271 for the Series 60 11.1L, 12.7L, and 14.0L on-highway and industrial diesel. Each unit ships as the captured-bolt assembly with the rubber isolator grommet that seals the valve cover to the rocker housing on the Series 60 head — sold individually, with a typical Series 60 valve cover requiring multiple units per cover.
Specifications
| Manufacturer | Detroit Diesel (Genuine OEM) |
|---|---|
| Part Number | 23522271 |
| Part Type | Valve Cover Bolt and Isolator Assembly |
| Engine Compatibility | Detroit Series 60 (11.1L, 12.7L, 14.0L) |
| Companion Gasket | Detroit 23522269 / 23511991 (rocker cover gasket) |
Cross References
This valve cover bolt and isolator assembly replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23522271
- PAI Industries: 642022
Applications
This valve cover bolt and isolator fits the following Detroit Diesel engines:
- Detroit Series 60 11.1L (1987–1995)
- Detroit Series 60 12.7L (1995–2007)
- Detroit Series 60 14.0L (2001–2011)
Representative vehicles using the Series 60:
- Freightliner Classic, Century, Columbia, Coronado, FLD120
- Western Star 4900, 5900
- Sterling A9500, AT9500, LT9500
- Industrial and stationary Detroit Series 60 gensets
This is a service component — replace the rocker cover gasket (Detroit 23522269 / 23511991) at the same time the isolators are removed. Inspect each isolator for swelling, oil saturation, or torn rubber on removal and replace as a set if any are degraded.
