Description
PAI 621242 is the per-injector seal and hardware kit for Detroit Diesel Series 60 (12.7L and 14L) N3 electronic unit injectors, replacing Detroit OE 23537111 / 23535700. The kit contains every soft seal, the clamp washer, and the hold-down screw needed to install one EUI in the cylinder head. Order quantity 6 for a complete engine set. Made in the USA by PAI Industries with a 2-year unlimited-mileage warranty.
Signs You Need New Injector Seals
- Fuel weeping around an injector or cylinder-head bore
- Diesel fuel odor in the engine compartment
- Hard starting or extended cranking
- Rough idle or misfire after injector service
- White or black smoke under load
- Performing injector replacement, in-frame, or overhaul
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 621242 |
| Part Type | Injector Seal & Hardware Kit (per injector) |
| Engine Compatibility | Detroit Diesel Series 60 (12.7L, 14L) |
| Injector Type | N3 Electronic Unit Injector (EUI) |
| Quantity per Kit | 1 injector (order 6 for full engine) |
| Country of Origin | USA |
| Warranty | 2 Years Unlimited Mileage |
Kit Includes
- O-ring — PAI 621216 (OEM Detroit 5234702)
- Injector O-ring — PAI 621240 (OEM Bosch F00HN37860)
- Injector O-ring — PAI 621241 (OEM Bosch F00HN37331)
- Injector seal — PAI 636050 (OEM Bosch F00H410608)
- Clamp washer — PAI 642051 (OEM Detroit 23535699)
- Hold-down screw — PAI 640014 (OEM Detroit 8929393)
Cross References
This kit replaces or is equivalent to the following part numbers:
- Detroit Diesel: 23537111, 23535700
- Bosch: F00HN37860, F00HN37331, F00H410608
Applications
This injector seal kit fits the following engines:
- Detroit Diesel Series 60 12.7L (1987-2007, DDEC I-V)
- Detroit Diesel Series 60 14L (2001-2011, DDEC IV-VI)
Representative vehicles using these engines:
- Freightliner FLD, Classic, Century, Columbia, Coronado, Argosy (1987-2011)
- Kenworth W900, T800, T600, T660, T2000 (1987-2011)
- Peterbilt 379, 378, 377, 385, 386, 387, 389 (1987-2011)
- Western Star 4900 (select years)
- Sterling A-Line, L-Line (select years)
- MCI, Prevost, Van Hool motor coaches (various)
This kit is also a component of PAI overhaul gasket kit 631316. Verify your engine serial number and DDEC version before ordering.
