Product Description
CUMMINS 3964817 OEM PISTON OIL SQUIRTER BANJO BOLT FOR 2003-2018 5.9L AND 6.7L CUMMINS
The Cummins 3964817 OEM piston oil squirter banjo bolt secures the piston cooling nozzle to the main oil gallery on 2003-2018 ISB 5.9L and 6.7L Cummins engines.
This genuine Cummins fastener helps maintain proper piston cooling, oil flow, nozzle alignment, and long-term engine reliability during rebuilds, lower-end service, and piston cooling nozzle replacement.
Worn, stripped, or damaged banjo bolts may cause oil pressure loss, incorrect oil jet direction, or reduced piston cooling performance.
FEATURES
- Genuine OEM Cummins banjo bolt
- Secures piston cooling nozzle to oil gallery
- Designed for 5.9L and 6.7L ISB Cummins engines
- Helps maintain proper oil pressure and nozzle alignment
- Correct OEM hardness and thread engagement
- Critical hardware for engine rebuilds and overhauls
- Direct-fit replacement for factory piston oil squirter hardware
FITMENT
- 2003-2007 Dodge Ram 2500 5.9L Cummins ISB
- 2003-2007 Dodge Ram 3500 5.9L Cummins ISB
- 2007.5-2018 Ram 2500 6.7L Cummins ISB
- 2007.5-2018 Ram 3500 6.7L Cummins ISB
- Select ISB industrial and commercial applications
Fitment Note: Always verify compatibility using engine serial number before ordering.
WHAT'S INCLUDED
- 1 Cummins 3964817 OEM piston oil squirter banjo bolt
RELATED PARTS
- Cummins piston cooling nozzles
- Cummins piston oil squirters
- Cummins lower engine rebuild components
- Cummins oil gallery hardware
- Cummins engine bearings and gasket kits
INSTALLATION NOTES
- Torque bolt according to Cummins service specifications
- Clean the nozzle, bolt, and oil gallery before installation
- Inspect piston cooling nozzles for clogging or deformation
- Replace damaged or questionable hardware during rebuilds
- Verify proper nozzle orientation before final assembly
SPECIFICATIONS
- Brand: Cummins
- Part Number: 3964817
- Product Type: Piston oil squirter banjo bolt
- Function: Secures piston cooling nozzle to oil gallery
- Engine Compatibility: 5.9L and 6.7L Cummins ISB
- Fitment Years: 2003-2018
- Quantity Required: Typically 6 per engine
- Approximate Shipping Weight: 0.02 pound
- Shipping Method: Standard small-parts ground shipping
- Condition: New genuine Cummins OEM part
FAQ
Is this the correct bolt for my 5.9L or 6.7L Cummins?
Yes. Cummins 3964817 is commonly used on piston cooling nozzles for 2003-2018 ISB 5.9L and 6.7L Cummins engines.
How many of these bolts does my engine use?
Most ISB engines use one bolt per piston cooling nozzle, for a total of six bolts per engine.
Should I replace these during an engine rebuild?
Yes. Replacing piston cooling nozzle hardware during a rebuild helps ensure proper oil pressure, sealing, and nozzle alignment.
What does this bolt work with?
This bolt works with compatible OEM Cummins piston cooling nozzles used in 5.9L and 6.7L ISB applications.
Is this a genuine Cummins part?
Yes. This is a genuine OEM Cummins fastener for critical internal engine oiling components.
