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Vendor:DeatschWerksDeatschWerks Replacement O-Rings for 5/16in Female EFI Fittings (6-02-0121 / 6-02-0143)
Regular price $10.00Sale price $10.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Male Flare to 5/16in Female EFI Quick Connect Adapter - Anodized Matte Black
Regular price $25.00Sale price $25.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Male 5/16IN Female EFI Quick Connect Adapter
Regular price $25.00Sale price $25.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN ORB to Polaris RZR Turbo OE Regulator Adapter - Anodized Matte Black
Regular price $44.00Sale price $44.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN ORB to Can-Am Maverick X3 OE Quick Connect Adapter - Anodized Matte Black
Regular price $10.00Sale price $10.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Male Flare to 5/16in Male EFI Quick Connect Adapter - Anodized Matte Black
Only 5 leftRegular price $14.00Sale price $14.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Male Flare to 5/16in Male EFI Quick Connect Adapter
Regular price $15.00Sale price $15.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 3/8in Female EFI Quick Connect to 3/8in Female EFI Quick Connect - Anodized Matte Black
Regular price $52.00Sale price $52.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 3/8in Female EFI Quick Connect to 3/8in Female EFI Quick Connect - Anodized Matte Black
Regular price $40.00Sale price $40.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 10AN Female Flare Swivel to 3/8in Male EFI Quick Disconnect - Anodized Matte Black
Only 12 leftRegular price $26.00Sale price $26.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 10AN Female Flare Swivel to 3/8in Male EFI Quick Disconnect - Anodized DW Titanium
Regular price $26.00Sale price $26.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 10AN Female Flare Swivel to 5/16in Male EFI Quick Disconnect - Anodized Matte Black
Regular price $26.00Sale price $26.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 10AN Female Flare Swivel to 5/16in Male EFI Quick Disconnect - Anodized DW Titanium
Regular price $26.00Sale price $26.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Female Flare Swivel to 3/8in Male EFI Quick Disconnect - Anodized Matte Black
Regular price $24.00Sale price $24.00 Regular priceUnit price per -
Vendor:DeatschWerksDeatschWerks 8AN Female Flare Swivel to 3/8in Male EFI Quick Disconnect - Anodized DW Titanium
Only 12 leftRegular price $24.00Sale price $24.00 Regular priceUnit price per
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.