This 5-pack of o-ring plugs is built for Cummins ISX, 6B 5.9, ISB, and QSB Marine series engines. Each plug uses a compressible o-ring beneath a threaded head to seal an unused port or drilled passage, blocking fluid or air leakage without added sealant.
Interchanges:
- 3678921
- 3977853
- Cummins 3680420
- Detroit Diesel 23533181
- Mack 6635-VSTI14X15OR
This unit is sold in packs of 5.
Features
Sold as a pack of 5 O-ring plugs
Fits all Cummins ISX Series engines
Fits Cummins 6B 5.9 engines
Fits Cummins ISB engines
Fits Cummins QSB Marine engine series
Tech Specs
- Sell pack: 5 pieces
