QFS Fuel Regulator Strainer Kit for Buell XB Series 2003-2009 | OE Replacement for P0166.K, P0121.02A8A, P0806.K | Backed For Life | Complete EFI Service Kit

★★★★★ 4.4 75 reviews

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Management number 247851918 Release Date 2026/08/16 List Price US$20.79 Model Number 247851918
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QFS Fuel Pump Repair Kits are designed for quick, hassle-free installation—no special tools or professional experience required. You should be able to complete installation with the simple tools found in any tool box. While fuel economy improvements aren't the primary purpose, replacing a pump that’s worn or underperforming can help restore proper fuel delivery and system efficiency. Built for reliability, every QFS component is engineered to withstand demanding conditions, from long-distance rides to harsh winter temperatures. Components included vary by kit, so please refer to the bullet points for a detailed list of what’s inside, including whether a filter is included. This specific kit is designed for Buell motorcycles: 2004-2009 Buell XB12R Firebolt 2004-2009 Buell XB12S Lightning 2006-2009 Buell XB12X Ulysses 2003-2007 Buell XB9R Firebolt 2003-2004 Buell XB9S Lightning 2005-2009 Buell XB9SX Lightning

  • QFS-K310 is a comprehensive fuel pump rebuild kit designed to restore factory-spec fuel delivery to the Buell XB series, replacing obsolete or failing OEM components
  • Precise Buell Fitment: Designed to fit 2004-2009 XB12R Firebolt, 2004-2009 XB12S Lightning, 2006-2009 XB12X Ulysses, 2003-2007 XB9R Firebolt, 2003-2004 XB9S Lightning, and 2005-2009 XB9SX Lightning
  • Complete Rebuild Solution: Includes a premium 350KPA (50 psi) fuel pressure regulator (Ref: P0166.K) to eliminate the common "stumble" and lean-running issues associated with aging factory regulators; Also includes (2) tank seals (P0121.02A8A), the primary fuel strainer (P0806.K), corrugated flex hose, submersible rubber hose, stainless steel hose clamps, and the protective rubber boot
  • Modern Fuel Compatible: Every component is specifically constructed to withstand the corrosive properties of modern ethanol-blended pump gasoline, preventing the hoses from softening and the seals from swelling
  • Get back on the road with confidence – Guaranteed – As a US-based small business, we understand the frustration of downtime and are here to help you get back to your passion. Backed by our lifetime warranty, we stand by our products and our community
ASIN B08KKWGQ6G
Fit Type Vehicle Specific Fit
Gas Type Gasoline
Brand Name HFP
Unit Count 1 Count
Manufacturer QFS
Model Number QFS-K310
Mounting Type Tank Mount
Product Style Fuel Pump Repair Kit
Connector Type lightning
Operation Mode Automatic
Item Dimensions 4.9 x 4.9 x 4.9 inches
Number of Items 1
Auto Part Position Inside
Automotive Fit Type Vehicle Specific Fit
Included Components Fuel Pressure Regulator, Fuel Strainers, Tank Seals (2), Corrugated Fuel Hose, Rubber Fuel Hose, Hose Clamps, Rubber Boot
Part Interchange Info replacement
Manufacturer Part Number QFS-K310
OEM Equivalent Part Number P0121.02A8A, P0166.K, P0806.K
Compatible with Vehicle Type Motorcycle
Manufacturer Warranty Description Lifetime Warranty

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