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Up to 10% offVendor:Cometic GasketCometic 90-94 Nissan SR20DE/DET DOHC 16V 2.0L Exhaust Valve Stem Seals
Regular price $1.45Sale price $1.45 Regular priceUnit price per$1.61You Save $0.16! -
Up to 10% offVendor:Cometic GasketCometic .271inX.502inX.606inX.512inX.361in Valve Stem Seal
Regular price $1.94Sale price $1.94 Regular priceUnit price per$2.16You Save $0.22! -
Up to 10% offVendor:Cometic GasketCometic 11/32in x .563in x .470in x .690in Viton Ring & Band Valve Stem Seal - 16 Pack
Regular price $33.29Sale price $33.29 Regular priceUnit price per$36.98You Save $3.69! -
Up to 10% offVendor:Cometic GasketCometic 3/8in x 0.623in x 0.470in x 0.790in Nitrile Valve Stem Seal-Positive 2 Ring & Band-16 Pack
Regular price $16.73Sale price $16.73 Regular priceUnit price per$18.57You Save $1.84! -
Up to 10% offVendor:Cometic GasketCometic 11/32in x 0.530in x 0.485in x 0.710in Nitrile Valve Stem Seal-Positive Ring & Band-16 Pack
Regular price $8.41Sale price $8.41 Regular priceUnit price per$9.35You Save $0.94! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Mitsubishi Evo X 4B11T Valve Stem Seal Set (Set of 16)
Regular price $58.91Sale price $58.91 Regular priceUnit price per$69.30You Save $10.39! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 4G63T Evo 1-9 / 90-98 DSM Viton 6.6mm Valve Stem Seal Set
Regular price $20.05Sale price $20.05 Regular priceUnit price per$23.59You Save $3.54! -
Up to 15% offVendor:GSC Power DivisionGSC P-D SR20DET Valve Stem Seal Set
Only 2 leftRegular price $13.26Sale price $13.26 Regular priceUnit price per$15.60You Save $2.34! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan VQ35DE Viton 5.5mm Valve Stem Seal Set
Only 11 leftRegular price $23.20Sale price $23.20 Regular priceUnit price per$27.29You Save $4.09! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota MR-2 3SGTE Viton 6mm Valve Stem Seal Set
Regular price $17.52Sale price $17.52 Regular priceUnit price per$20.61You Save $3.09! -
Up to 15% offVendor:GSC Power DivisionGSC P-D 93-07 Dodge Viper Viton Valve Stem Seals - Set of 20
Only 5 leftRegular price $28.05Sale price $28.05 Regular priceUnit price per$33.00You Save $4.95! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Nissan RB26DETT Valve Stem Seal - Set of 24
Only 19 leftRegular price $31.02Sale price $31.02 Regular priceUnit price per$36.49You Save $5.47! -
Up to 15% offVendor:GSC Power DivisionGSC P-D D16/B18-21/ H23 Viton 6.6mm Seal Valve Stem Seal Kit
Regular price $18.92Sale price $18.92 Regular priceUnit price per$22.26You Save $3.34! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZ Viton 6mm Valve Stem Seal Set
Regular price $24.45Sale price $24.45 Regular priceUnit price per$28.77You Save $4.32! -
Up to 15% offVendor:GSC Power DivisionGSC P-D Toyota 2JZ Viton 6.6mm Exhaust Valve Guide Seal Kit Set of 12
Only 10 leftRegular price $15.10Sale price $15.10 Regular priceUnit price per$17.77You Save $2.67!
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.