Description
Genuine Detroit Diesel OEM injector O-ring and installation kit (23537111, supersession 23535700) for the Series 60 12.7L and 14L EUI fuel system. One kit services all six injectors on a single engine — includes the colored upper/middle/lower O-rings, injector copper washer, hold-down clamp, and clamp bolt for each cylinder. Cross-references PAI 621242 and Interstate-McBee A-23537111.
Specifications
| Manufacturer | Detroit Diesel |
|---|---|
| Part Number | 23537111 (supersession 23535700) |
| Part Type | EUI injector O-ring and install kit (6-cylinder service) |
| Engine Compatibility | Detroit Diesel Series 60 12.7L and 14L (EUI) |
| Application | Re-seal and re-install all 6 EUI injectors during cylinder-head or injector service |
Kit Includes
- Upper injector O-ring (qty 6)
- Middle injector O-ring — N3 blue (qty 6)
- Lower injector O-ring — N3 purple (qty 6)
- Injector copper washer / sealing washer (qty 6)
- Injector hold-down clamp (qty 6)
- Hold-down bolt M10 × 1.5 × 70 mm (qty 6)
Cross References
This kit replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23537111, 23535700
- PAI Industries: 621242
- Interstate-McBee: A-23537111
Applications
This kit fits the following Detroit Diesel engines:
- Detroit Diesel Series 60 12.7L EUI (1987–2007)
- Detroit Diesel Series 60 14.0L EUI (2001–2011)
Representative vehicles using these engines:
- Freightliner Classic, FLD, Century Class, Columbia (1987–2011)
- Western Star 4900, 5900 (1990–2011)
- Sterling A-Line, L-Line (1998–2009)
Verify your engine serial number and EUI configuration before ordering. This kit is for EUI-equipped Series 60 engines — does not fit DD13 / DD15 / DD16 common-rail engines.









