Product Description
Keep the variable-geometry turbo on your 6.7L Cummins clamped down and sealed tight with this genuine CUMMINS 4931642 OEM turbocharger mounting stud (double end plain). This is the same OE hardware used by Cummins on EPA13+ 6.7L ISB/QSB engines and 2007.5–2018 Ram 2500/3500 trucks, so you get proper turbo alignment, gasket sealing, and long-term durability in one simple replacement stud.
Fitment
- Automotive: 2007.5–2018 Ram 2500/3500 with 6.7L Cummins ISB (VGT turbocharger)
- Engine family: 6.7L Cummins ISB/QSB, EPA13+ turbo mounting locations (verify by ESN)
Always confirm fitment by VIN or Engine Serial Number (ESN) before ordering.
Features & Benefits
- Genuine Cummins turbocharger mounting stud – not a generic or offshore copy.
- Correct thread length and shoulder design for VGT turbo to manifold mounting.
- Engineered for high-heat, high-vibration turbocharger environments.
- Sold individually – order 4 studs per turbo for a complete replacement.
Cross-Reference & Related Cummins Parts
- Turbo mounting stud (this listing): Cummins 4931642 OEM turbocharger mounting stud – Ram 6.7L (2007.5–2018)
- Exhaust valve service: Cummins 4955212 OEM exhaust valve kit – Ram 6.7L (2007.5–2018)
- Oil pressure feedback: Cummins 6456801 OEM engine oil pressure sensor (EOP) – Ram 6.7L (2007.5–2018)
- EGR sealing: Cummins 3979769 OEM EGR valve gasket – Ram 6.7L (2007.5–2021)
Use these genuine Cummins parts to keep your 6.7L ISB hardware package matched and reliable.
What’s Included
- (1) Genuine Cummins turbocharger mounting stud – part number 4931642
- Matching turbo mounting nuts sold separately.
Installation Notes
- Recommend replacing all four turbo mounting studs as a set if any are stretched, corroded, or cross-threaded.
- Clean threads in the manifold and turbo flange; chase threads if needed.
- Use appropriate high-temp anti-seize and torque to factory specifications.
- Re-check fastener torque after initial heat cycles on fresh installs.
FAQ
Will this stud fit my 2007.5–2018 Ram 6.7L Cummins?
Yes. Cummins 4931642 is the OE turbocharger mounting stud used on most 2007.5–2018 Ram 2500/3500 trucks with the 6.7L ISB and variable-geometry turbocharger. Because engines and turbos can be swapped, always confirm by VIN or Engine Serial Number (ESN) if you are unsure.
How many studs do I need for one turbo?
The factory turbocharger typically uses four (4) of these double-end plain studs. This listing is for a single stud. Order a quantity of 4 if you want to replace the complete set.
Does this part include the turbo mounting nuts?
No. This listing is for the stud only. The matching turbo mounting nuts are sold separately. We recommend installing new nuts any time you replace or disturb the studs for the best clamp load and long-term reliability.
Is CUMMINS 4931642 a genuine OEM part?
Yes. This is a genuine Cummins OEM turbocharger mounting stud sourced through CPP Diesel. Using authentic Cummins hardware helps ensure proper fit, material quality, and durability in high-heat turbocharger locations.
Can I use this stud on other 6.7L ISB/QSB applications?
This double-end plain stud is commonly used on EPA13+ 6.7L ISB/QSB engines in on-highway and industrial applications. For anything outside a 2007.5–2018 Ram pickup, verify the part number against your Cummins QuickServe or ESN-based parts list before ordering.
Specifications for cummins 4931642
| Brand | Cummins |
|---|---|
| Part Number | 4931642 |
| Description | Turbocharger mounting stud, double end plain (turbo to exhaust manifold) |
| Engine / Application | 6.7L Cummins ISB/QSB; 2007.5–2018 Ram 2500/3500 6.7L turbo mounting locations (verify by ESN) |
| Configuration | Double-end stud, threaded both ends for turbocharger and exhaust manifold flanges |
| UPC | Not specified by manufacturer |
| GTIN | Not specified by manufacturer |
| Shipping Weight | Approx. 0.06 lb (single stud) |
| Package Dimensions | Approx. 8.0 in x 8.0 in x 8.0 in (shipping carton) |
| Shipping Info | Ships from CPP Diesel; standard and expedited options available; shipping calculated at checkout |
| Cross Reference | Cummins 4931642; distributor variants may be listed as 4931642CUM; aftermarket interchange examples include PAI 040221 (verify application before substituting). |
| E-Codes | Not specified / not applicable |
| Prop 65 | This product may contain chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
