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5.9 | 6.7 Cummins Exhaust Manifold Stud Kit (7MM External Hex Head) | Fleece Performance FPE-34771
Tired of fighting rusty, seized, or broken exhaust manifold bolts on your Cummins? The Fleece Performance Exhaust Manifold Stud Kit (FPE-34771) is the premium upgrade your 5.9L or 6.7L Cummins deserves.
Built from high-strength aged 603 stainless steel, these studs are engineered to survive the extreme heat cycles, vibration, and corrosive underhood environment that destroy factory hardware. The innovative 7mm external hex head design makes installation and future service dramatically easier compared to traditional internal hex (Allen) studs — just use a standard socket or wrench, even in tight engine bays.
This complete kit includes 12 studs, 12-point nuts, and washers, giving you everything needed for a professional, leak-free install with higher clamping force than stock bolts.
Key Features & Benefits:
- Aged 603 stainless steel construction for maximum rust and corrosion resistance
- 7mm external hex head for fast, easy installation and removal with common tools
- Includes high-quality 12-point nuts and flat washers
- Higher clamping force than factory hardware
- Helps prevent exhaust leaks and improves long-term manifold sealing
- Designed and manufactured in the USA by Fleece Performance
- Direct replacement for 1994–2018 Dodge Ram Cummins applications
Official Torque Specification: Torque nuts to 55 ft-lbs using anti-seize on the exposed threads. Perform a hot re-torque after the first heat cycle for optimal results.
| Engine | Years | Notes |
|---|---|---|
| 5.9L 12-Valve Cummins | 1994–1998 | Aftermarket exhaust manifold only |
| 5.9L 24-Valve Cummins | 1998.5–2002 | Direct fit |
| 5.9L 24-Valve Cummins | 2003–2007 | Factory heat shield must be removed |
| 6.7L Cummins | 2007.5–2018 | Direct fit |
Note: Not compatible with factory exhaust manifold on 1994–1998 12-valve trucks.
Why Customers Choose This Kit
Factory exhaust manifold bolts are a well-known weak point on Cummins engines. They commonly seize, break, or lose clamping force over time. The Fleece kit solves these issues with superior materials and a user-friendly hex head design that makes future manifold service much less frustrating.
5.9 | 6.7 Cummins Exhaust Manifold Stud Kit (7MM External Hex Head) | Fleece Performance FPE-34771
Tired of fighting rusty, seized, or broken exhaust manifold bolts on your Cummins? The Fleece Performance Exhaust Manifold Stud Kit (FPE-34771) is the premium upgrade your 5.9L or 6.7L Cummins deserves.
Built from high-strength aged 603 stainless steel, these studs are engineered to survive the extreme heat cycles, vibration, and corrosive underhood environment that destroy factory hardware. The innovative 7mm external hex head design makes installation and future service dramatically easier compared to traditional internal hex (Allen) studs — just use a standard socket or wrench, even in tight engine bays.
This complete kit includes 12 studs, 12-point nuts, and washers, giving you everything needed for a professional, leak-free install with higher clamping force than stock bolts.
Key Features & Benefits:
Aged 603 stainless steel construction for maximum rust and corrosion resistance
7mm external hex head for fast, easy installation and removal with common tools
Includes high-quality 12-point nuts and flat washers
[...]
5.9 | 6.7 Cummins Exhaust Manifold Stud Kit (7MM External Hex Head) | Fleece Performance FPE-34771
Tired of fighting rusty, seized, or broken exhaust manifold bolts on your Cummins? The Fleece Performance Exhaust Manifold Stud Kit (FPE-34771) is the premium upgrade your 5.9L or 6.7L Cummins deserves.
Built from high-strength aged 603 stainless steel, these studs are engineered to survive the extreme heat cycles, vibration, and corrosive underhood environment that destroy factory hardware. The innovative 7mm external hex head design makes installation and future service dramatically easier compared to traditional internal hex (Allen) studs — just use a standard socket or wrench, even in tight engine bays.
This complete kit includes 12 studs, 12-point nuts, and washers, giving you everything needed for a professional, leak-free install with higher clamping force than stock bolts.
Key Features & Benefits:
- Aged 603 stainless steel construction for maximum rust and corrosion resistance
- 7mm external hex head for fast, easy installation and removal with common tools
- Includes high-quality 12-point nuts and flat washers
- Higher clamping force than factory hardware
- Helps prevent exhaust leaks and improves long-term manifold sealing
- Designed and manufactured in the USA by Fleece Performance
- Direct replacement for 1994–2018 Dodge Ram Cummins applications
Official Torque Specification: Torque nuts to 55 ft-lbs using anti-seize on the exposed threads. Perform a hot re-torque after the first heat cycle for optimal results.
| Engine | Years | Notes |
|---|---|---|
| 5.9L 12-Valve Cummins | 1994–1998 | Aftermarket exhaust manifold only |
| 5.9L 24-Valve Cummins | 1998.5–2002 | Direct fit |
| 5.9L 24-Valve Cummins | 2003–2007 | Factory heat shield must be removed |
| 6.7L Cummins | 2007.5–2018 | Direct fit |
Note: Not compatible with factory exhaust manifold on 1994–1998 12-valve trucks.
Why Customers Choose This Kit
Factory exhaust manifold bolts are a well-known weak point on Cummins engines. They commonly seize, break, or lose clamping force over time. The Fleece kit solves these issues with superior materials and a user-friendly hex head design that makes future manifold service much less frustrating.
Fits: 5.9|6.7 Cummins 1998.5-2018
California Restricted
Fits: 5.9 Cummins 1998.5-2002
Fits: 5.9 Cummins 1998.5-2007
California Restricted
Fits: 5.9 Cummins 1998.5-2002
Fits: 5.9|6.7 Cummins 1994-2018
Fits: 5.9|6.7 Cummins 1998.5-2018