Product Description
Lock down your Cummins exhaust manifold the right way with the FLEECE FPE-34771 FLEECE PERFORMANCE EXHAUST MANIFOLD STUD KIT - 7MM EXTERNAL HEX HEAD. Produced in the USA from aged 630 stainless steel, this premium hardware kit delivers higher clamping force, rock-solid sealing, and long-term corrosion resistance on 1994–2018 Dodge Ram 5.9L and 6.7L Cummins engines.
Each stud features a 7mm external hex head for easy installation in tight engine bays, making manifold swaps and turbo upgrades faster and more predictable. Whether you’re replacing a cracked manifold, installing a performance exhaust manifold, or just fixing tired OE hardware, this Fleece kit keeps your Cummins sealed, quiet, and ready for serious boost.
Key Features
- Aged 630 stainless steel studs, nuts, and washers for maximum strength and corrosion resistance.
- 7mm external hex head on each stud for simple, tool-friendly installation.
- Higher clamping force than typical OE hardware to help prevent exhaust leaks.
- Ideal for stock replacement or performance exhaust manifolds on 5.9L and 6.7L Cummins engines.
- Engineered by Fleece Performance Engineering and stocked at CPP Diesel.
Fitment – FLEECE FPE-34771
This exhaust manifold stud kit is designed specifically for Cummins-powered Dodge/Ram trucks:
- 1994–1998 5.9L Cummins 12V – fits factory-style and performance exhaust manifolds.
- 1998.5–2002 5.9L Cummins 24V – direct replacement hardware for OE or aftermarket manifolds.
- 2003–2007 5.9L Cummins common rail – ideal when replacing cracked manifolds or upgrading to a performance manifold.
- 2007.5–2018 6.7L Cummins – works with factory and performance exhaust manifolds on Ram 2500/3500 applications.
Fits most 1994–2018 Dodge/Ram 2500 and 3500 trucks equipped with the 5.9L or 6.7L Cummins diesel when using a factory-style or performance exhaust manifold. Always verify manifold configuration and hardware requirements for custom or aftermarket setups.
What’s Included
- (Qty as supplied by Fleece) Stainless steel exhaust manifold studs with 7mm external hex head.
- Matching stainless steel nuts and washers for each stud.
- Application-specific layout for 5.9L and 6.7L Cummins exhaust manifolds.
Recommended Cross-Reference & Related Fleece Products
Pair this exhaust manifold stud kit with other Fleece Performance hardware and turbo accessories available at CPP Diesel:
- FLEECE FPE-34772 EXHAUST MANIFOLD STUD KIT – 4MM ALLEN SOCKET HEAD – same application range with 4mm internal Allen head studs for installers who prefer internal-drive hardware.
- FLEECE FPE-34856 STAINLESS STEEL TURBO STUD KIT FOR S-300/S-400 – stainless turbo mounting studs that complement your upgraded manifold hardware on S300/S400 turbo setups.
Installation Notes
- Clean all manifold and cylinder head threads before installation.
- Use a high-quality nickel-based anti-seize on the threads to aid future service.
- Torque per manifold manufacturer’s specs; re-torque after at least one full heat cycle when recommended.
FAQ – FLEECE FPE-34771 EXHAUST MANIFOLD STUD KIT
Will this kit fit both 5.9L and 6.7L Cummins applications?
Yes. The FLEECE FPE-34771 kit is designed for 1994–2018 Dodge/Ram Cummins trucks equipped with 5.9L or 6.7L engines using a factory-style or performance exhaust manifold. Always double-check your manifold and turbo configuration if you’re running a non-stock setup.
What’s the difference between FPE-34771 and FPE-34772?
Both kits use aged stainless steel hardware and are designed for similar Cummins applications. The FPE-34771 kit features a 7mm external hex head on each stud for installation with a small socket or wrench, while the FPE-34772 kit uses a 4mm internal Allen socket head for installers who prefer internal-drive hardware.
Is this kit better than reusing the factory exhaust manifold bolts?
Yes. The aged stainless steel construction and stud-and-nut design typically provide higher clamping force and better long-term sealing than reusing factory bolts, especially on higher-mileage engines or trucks running elevated exhaust gas temperatures.
Do I need a new exhaust manifold to use this kit?
No. The FLEECE FPE-34771 kit works with both factory exhaust manifolds and most aftermarket performance manifolds designed for 5.9L and 6.7L Cummins engines. Just ensure that your manifold uses the standard Cummins stud pattern.
Is there any maintenance required after installation?
It’s good practice to re-check torque after a few heat cycles or after the first few hundred miles, particularly on fresh manifolds or new turbo installations. The stainless hardware is highly corrosion resistant, so long-term maintenance beyond periodic torque checks is minimal.
Specifications for FLEECE FPE-34771
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34771 |
| UPC | 670875716711 |
| GTIN | 670875716711 |
| Engine Fitment | 1994–2018 Dodge/Ram 5.9L & 6.7L Cummins (most 2500/3500 applications with factory-style or performance exhaust manifolds) |
| Material | Aged 630 stainless steel studs, nuts, and washers |
| Stud Head Style | 7mm external hex head |
| Configuration | Complete exhaust manifold stud, nut, and washer kit |
| Country of Origin | USA |
| Approx. Shipping Weight | ~1.0 lb (0.45 kg) |
| Approx. Package Dimensions | 4 in x 2 in x 2 in (L x W x H) |
| Shipping Method | Standard ground, small parcel |
| Cross Reference | Fleece FPE-34772 (4mm Allen head manifold stud kit); Fleece FPE-34856 (S300/S400 turbo stud kit) |
| E-Codes | Not applicable (hardware kit) |
| Prop 65 Warning | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
