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Vendor:Cometic GasketCometic 40mm x 2.5mm Gasket
Regular price $4.36Sale price $4.36 Regular priceUnit price per -
Vendor:Cometic GasketCometic 70 Duro L1120 138 Blue Flurorsilicone O-Ring
Regular price $5.94Sale price $5.94 Regular priceUnit price per -
Vendor:Cometic GasketCometic 138 Buna O-Ring
Regular price $1.42Sale price $1.42 Regular priceUnit price per -
Up to 7% offVendor:Cometic GasketCometic GM LMM/LLY Duramax Top End Gasket Kit - 4.130in Bore - .047in MLX Cylinder Head Gasket
Regular price $608.02Sale price $608.02 Regular priceUnit price per$653.79You Save $45.77! -
Up to 7% offVendor:Cometic GasketCometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .053in MLX Cylinder Head Gasket
Only 1 leftRegular price $721.23Sale price $721.23 Regular priceUnit price per$775.52You Save $54.29! -
Up to 7% offVendor:Cometic GasketCometic GM LLY/LBZ Duramax Top End Gasket Kit - 4.100in Bore - .051in MLS Cylinder Head Gasket
Regular price $616.36Sale price $616.36 Regular priceUnit price per$662.75You Save $46.39! -
Up to 7% offVendor:Cometic GasketCometic GM LB7 Duramax Top End Gasket Kit - 4.100in Bore - .045in MLS Cylinder Head Gasket
Only 1 leftRegular price $501.35Sale price $501.35 Regular priceUnit price per$539.09You Save $37.74! -
Up to 7% offVendor:Cometic GasketCometic GM LB7 Duramax Top End Gasket Kit - 4.130in Bore - .053in MLX Cylinder Head Gasket
Regular price $506.57Sale price $506.57 Regular priceUnit price per$544.70You Save $38.13! -
Up to 7% offVendor:Cometic GasketCometic Ford 6.0L Power Stroke Top End Gasket Kit-96mm Bore-.067in MLX Cyl Head Gasket-18mm Dowels
Regular price $846.36Sale price $846.36 Regular priceUnit price per$910.07You Save $63.71! -
Up to 7% offVendor:Cometic GasketCometic Cummins 2007-2018 6.7L ISB Top End Gasket Kit-4.312in Bore-.067in MLX Cylinder Head Gasket
Regular price $466.85Sale price $466.85 Regular priceUnit price per$502.00You Save $35.15! -
Up to 7% offVendor:Cometic GasketCometic Cummins 2007-2018 6.7L ISB Top End Gasket Kit-4.312in Bore-.061in MLX Cylinder Head Gasket
Regular price $466.85Sale price $466.85 Regular priceUnit price per$502.00You Save $35.15! -
Up to 7% offVendor:Cometic GasketCometic Cummins 2007-2018 6.7L ISB Top End Gasket Kit-4.312in Bore-.054in MLX Cylinder Head Gasket
Regular price $466.85Sale price $466.85 Regular priceUnit price per$502.00You Save $35.15! -
Up to 7% offVendor:Cometic GasketCometic Cummins 5.9L ISB CR Top End Gasket Kit - 4.100in Bore - .072in MLX Cylinder Head Gasket
Regular price $466.85Sale price $466.85 Regular priceUnit price per$502.00You Save $35.15! -
Up to 7% offVendor:Cometic GasketCometic Cummins 5.9L ISB Top End Gasket Kit - Without Cylinder Head Gasket
Regular price $283.88Sale price $283.88 Regular priceUnit price per$305.25You Save $21.37! -
Up to 7% offVendor:Cometic GasketCometic Cummins 5.9L ISB Top End Gasket Kit - 4.100in Bore - .072in MLX Cylinder Head Gasket
Regular price $436.95Sale price $436.95 Regular priceUnit price per$469.84You Save $32.89!
Why Buy from FAST of West Chester?
This isn’t a warehouse — it’s a performance shop. At FAST of West Chester, every part we sell has been installed, tested, and pushed on real builds.
Led by Dave Brown, our team knows what works, what doesn’t, and what actually delivers results. No guesswork. No wasted money. Just proven performance.
Unlike large online retailers, our recommendations are based on hands-on experience with Subaru, JDM, and performance platforms — ensuring every part we offer delivers reliable performance, fitment, and results.