Fleece Performance Exhaust Manifold Stud Kit – 4mm Allen Socket Head (FPE-34772) for 1994-2018 Cummins 5.9L / 6.7L

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The Fleece Performance Exhaust Manifold Stud Kit (FPE-34772) is a high-quality upgrade for 1994–2018 Cummins 5.9L and 6.7L diesel engines. It replaces weak factory bolts with durable, high-strength studs featuring 4mm Allen socket heads for easy installation and removal. Designed to prevent exhaust leaks and withstand extreme heat and pressure, this kit offers improved reliability, fitment, and longevity, making it ideal for maintenance or performance upgrades.

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Description

The Fleece Performance Exhaust Manifold Stud Kit – 4mm Allen Socket Head (FPE-34772) is a premium hardware upgrade designed specifically for 1994-2018 Cummins 5.9L and 6.7L diesel engines. This kit provides a durable and reliable solution for securing the exhaust manifold, addressing common issues like broken or stretched factory bolts that can lead to exhaust leaks and performance loss. Featuring high-strength studs with 4mm Allen socket heads for easy installation and removal, the FPE-34772 ensures a tight, consistent seal and improved durability under extreme heat and pressure conditions. Whether you’re replacing worn hardware or upgrading during a performance build, this Fleece Performance kit is engineered for superior fitment, longevity, and ease of maintenance, making it an excellent choice for Cummins owners seeking enhanced reliability.

Additional information
Weight 1 lbs
Dimensions 4 × 2 × 2 in
Fitment

Fitment

Cummins 5.9L 12V (1994 – 1998) – Aftermarket exhaust manifold only
Cummins 5.9L 24V (1998.5 – 2002)
Cummins 5.9L 24V (2003 – 2007) – Requires removal of factory heat shield
Cummins 6.7L 24V (2007.5 – 2018)

** Nut torque of 55 ft-lbs with a hot re-torque is recommended.  Reference the installation instructions on this product page or our Resources page located here.
Features

Features

Higher Clamping Force
Includes 12 point nuts and washers
Aged 630 Stainless Steel

Installation

Installation

Installation Instructions

About brand
Fleece Performance Engineering is a diesel performance manufacturer focused on reliability and precision engineering. The company designs parts that solve common diesel issues while supporting added power. Fleece products support daily driving, towing, and performance diesel trucks. Fleece engineers fuel system components, turbochargers, electronics, and emissions-compliant upgrades in house. Their parts improve efficiency, drivability, and long-term engine protection. Each product is tested for proper fit and consistent performance. Diesel owners trust Fleece for dependable upgrades. Whether maintaining a work truck or building for performance, Fleece delivers proven solutions designed for real-world use.
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