Product Description
Cummins 3959574 OEM Piston Cooling Nozzle Plug (Delete Plug) for 2003-2018 Ram 5.9L & 6.7L Cummins
The Cummins 3959574 OEM Piston Cooling Nozzle Plug (Delete Plug) is a genuine Cummins service component designed for select 2003-2018 5.9L and 6.7L Cummins diesel engines. This OEM plug seals the piston cooling nozzle bore when a piston cooling nozzle has been removed or when specific engine repair or machining procedures require the oil passage to be blocked.
Manufactured to Cummins factory specifications, the 3959574 plug provides a precise fit and dependable seal during engine rebuilds, block repairs, and specialized performance applications. Whether you're servicing a damaged engine block or completing a custom engine build, using genuine Cummins components helps maintain proper oil system integrity and long-term engine reliability.
Features
- Genuine Cummins OEM piston cooling nozzle plug
- Direct-fit replacement for applicable Cummins engine blocks
- Seals piston cooling nozzle oil passages
- Designed for engine repair and rebuild applications
- Manufactured to Cummins OEM specifications
- Helps maintain engine oil gallery integrity
- Precision-machined for reliable sealing
- Ideal for block repairs and specialized engine modifications
- Factory-quality materials and construction
- Engineered for long service life
Fitment
- 2003-2007 Dodge Ram 2500 5.9L Cummins
- 2003-2007 Dodge Ram 3500 5.9L Cummins
- 2007.5-2018 Ram 2500 6.7L Cummins
- 2007.5-2018 Ram 3500 6.7L Cummins
- Select Cummins ISB and QSB industrial applications
Note: This plug is intended for specific engine service procedures where the piston cooling nozzle is removed or the oil passage must be sealed. Always verify application requirements using your Engine Serial Number (ESN) before installation.
What's Included
- (1) Genuine Cummins 3959574 Piston Cooling Nozzle Plug
Specifications
- Manufacturer: Cummins
- Part Number: 3959574
- Product Type: Piston Cooling Nozzle Plug (Delete Plug)
- Engine Compatibility: 5.9L ISB Cummins and 6.7L ISB Cummins
- Vehicle Compatibility: 2003-2018 Dodge Ram / Ram 2500 & 3500
- Installation Location: Engine Block Oil Gallery
- Application: Engine Repair, Rebuild, and Block Service
- Construction: Genuine OEM Cummins Component
- Installation Type: Direct Replacement
- Condition: New
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Happy with my purchase.
Item was as described and arrived sooner than expected.
