Gator Fasteners Heavy Duty Exhaust Manifold Bolt Kit, Chevy/GMC (2017-25) 6.6L L5P Duramax Diesel

Stop chasing manifold leaks on your L5P

Factory exhaust manifold hardware lives a hard life: every drive heats it up and cools it back down, and over time the bolts stretch, loosen and let the manifold leak. Gator Fasteners makes this kit from its own HD220 alloy, the same material used in its head studs, so the clamping load holds up to heat cycles far better than ordinary grade 10.9 or 12.9 hardware.

What you get

• HD220 alloy with more than 220,000 PSI tensile strength
• Built to resist stretching under repeated heating and cooling
• Black oxide finish for corrosion protection in the exhaust environment
• Machined as a direct replacement for the factory L5P manifold bolts
• A good add-on any time the manifolds come off for gaskets, up-pipes or a turbo job

Fitment

2017-2025 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD with the 6.6L L5P Duramax.

Specifications (per Gator Fasteners)

In the box

• Exhaust manifold bolt kit for both manifolds

Questions on fitment, or want our Idaho Falls shop to install it? Call 208-542-7793.