{"title":"Fuel Systems","description":"\u003cp\u003eCP4 bypass kits, fuel filter upgrades, and fuel-system parts for Ford, GM, and Dodge diesels.\u003c\/p\u003e\n\u003ch2\u003eProtect the Fuel System That Can Bankrupt a Build\u003c\/h2\u003e\n\u003cp\u003eThe CP4.2 pump is the Achilles heel of the 6.7L Powerstroke — when it fails it sends metal debris straight through the injectors, rails, and lines, and that's commonly a $10,000+ repair. A CP4 disaster-prevention bypass reroutes the pump's case fuel through a filter so a failure is caught instead of grenading the whole high-pressure system. It's cheap insurance. We also carry the billet L5P fuel filter cap that replaces the cracking factory plastic, dual fueler and filter-conversion kits, and Cummins injector lines.\u003c\/p\u003e\n\u003ch3\u003eFits these trucks\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFord 6.7L Powerstroke — CP4 disaster-prevention bypass kit, dual fueler kit, fuel filter conversion kit\u003c\/li\u003e\n  \u003cli\u003eGMC\/Chevy L5P 6.6L Duramax — billet aluminum fuel filter cap\u003c\/li\u003e\n  \u003cli\u003eGMC\/Chevy 6.6L Duramax (2001–2016) — fuel primer bulb sealing kit\u003c\/li\u003e\n  \u003cli\u003eDodge\/Ram 5.9L Cummins — 6x fuel injector line set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is the 6.7 CP4 pump a problem?\u003c\/strong\u003e\u003cbr\u003eIt's the known weak point of the 6.7L fuel system. When the CP4 fails it pushes metal debris into the injectors, rails, and lines — usually a several-thousand-dollar repair of the entire high-pressure system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does a CP4 disaster-prevention bypass do?\u003c\/strong\u003e\u003cbr\u003eIt reroutes the pump's case\/return fuel through a dedicated filter, so if the CP4 fails the debris is caught instead of destroying your injectors and rails. It doesn't stop the pump failing — it limits the damage to a pump instead of the whole system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy a billet L5P fuel filter cap?\u003c\/strong\u003e\u003cbr\u003eThe factory plastic cap cracks and leaks. A billet aluminum cap fixes it for good.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's a dual fueler kit?\u003c\/strong\u003e\u003cbr\u003eIt adds a second fuel pump for higher-demand builds that out-flow the single factory CP4.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit my truck?\u003c\/strong\u003e\u003cbr\u003eMatch the year and engine on the product page. Get the right part the first time.\u003c\/p\u003e","products":[{"product_id":"6x-fuel-injector-lines-set-for-2003-2009-dodge-ram-cummins-5-9l-diesel-904-322","title":"6x Fuel Injector Lines Set for 2003-2009 Dodge Ram Cummins 5.9L Diesel 904-322","description":"\u003cp\u003eThis 6-piece fuel injector lines set is designed for 2003–2009 Dodge Ram 2500 and 2003–2007 Dodge Ram 3500 with the 5.9L Cummins diesel engine. Fuel injector lines carry fuel from the injection pump or high-pressure common rail to the fuel injector, and this set replaces part number 904-322 to restore proper fuel delivery and sealing throughout your fuel system.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2003–2009 Dodge Ram 2500 5.9L Cummins diesel\u003c\/li\u003e\n  \u003cli\u003e2003–2007 Dodge Ram 3500 5.9L Cummins diesel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Complete set of 6 fuel injector lines for all cylinders 1, 2, 3, 4, 5, and 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers Replaced:\u003c\/strong\u003e 5086871AA, 5086872AB, 5086873AB, 5086874AB, 5086875AB, 5086876AD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlternate Part Numbers:\u003c\/strong\u003e 904-322, 904-323, 904-324, 904-325, 904-326, 904-327\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ST52 high-quality steel for improved durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion Protection:\u003c\/strong\u003e Anti-rust oil inside the ends prevents rust\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Features:\u003c\/strong\u003e Replacing the fuel lines helps prevent leaks, contamination \u0026amp; premature injector failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eFuel injector lines are considered a \"one-time-use\" component and need to be replaced when new fuel injectors are installed. Professional installation is strongly recommended to ensure proper sealing and fuel flow.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915758825781,"sku":"DR-W1-0309","price":60.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/DR-W1-0309_-_1.webp?v=1779776482"},{"product_id":"fuel-filter-conversion-kit-for-2011-2025-ford-6-7l-powerstroke-diesel-121003","title":"Fuel Filter Conversion Kit For 2011-2025 Ford 6.7L Powerstroke Diesel 121003","description":"\u003cp\u003eThe Fuel Filter Conversion Kit 121003 is designed for 2011–2025 Ford F-250, F-350, F-450, and F-550 models with 6.7L Powerstroke diesel engines, replacing the factory plastic upper fuel filter housing. This fuel filter conversion kit features a durable billet aluminum design that uses the high-flow Baldwin BF7967 (or equivalent) filter, providing cleaner fuel delivery and support for improved fuel system protection on heavy-duty diesel applications.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011–2025 Ford F-250 — 6.7L Powerstroke\u003c\/li\u003e\n  \u003cli\u003e2011–2025 Ford F-350 — 6.7L Powerstroke\u003c\/li\u003e\n  \u003cli\u003e2011–2025 Ford F-450 — 6.7L Powerstroke\u003c\/li\u003e\n  \u003cli\u003e2011–2025 Ford F-550 — 6.7L Powerstroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Billet aluminum design\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e Baldwin BF7967 (or equivalent) high-flow filter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInjector Return Fitting:\u003c\/strong\u003e Anodized aluminum injector return fitting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Distribution:\u003c\/strong\u003e Built-in fuel distribution block with extra 1\/8\" ORB port for added versatility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Direct fit with no modification—manufactured to strict OE specification 121003\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdditional Components:\u003c\/strong\u003e Includes an additional 1\/8-inch ORB connector, allowing for easy installation of a low-pressure return line or modification of the fuel pressure sensor interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is highly recommended. This fuel filter conversion kit is designed for Ford F-250, F-350, F-450, and F-550 models from 2011 to 2024 equipped with the 6.7L Powerstroke engine. Verify fitment with your vehicle's specifications before installation. Ensure all connections are secure to prevent leaks. Use appropriate tools for installation to avoid damage.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915770786101,"sku":"FP-529-1125","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/FP-529-1125-1.webp?v=1780531530"},{"product_id":"dual-fueler-kit-for-2011-2025-ford-6-7l-powerstroke-diesel-no-cp3-pump-included","title":"Dual Fueler Kit For 2011-2025 Ford 6.7L Powerstroke Diesel No CP3 Pump Included","description":"\u003cp\u003eThis dual fuel kit is designed for 2011-2019 Ford 6.7L Power Stroke engines and provides the required hardware and mounting components to support a dual high-pressure fuel pump setup for performance builds. The dual fueler kit enables increased fuel delivery beyond the factory CP4 pump capacity, supporting higher horsepower applications where both pumps work together to deliver fuel while sharing the load, reducing stress on your factory pump by 50%. This kit does not include a CP3 pump and is sold as the installation hardware only.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011–2025 Ford 6.7L Powerstroke Diesel (F-250, F-350, F-450, F-550)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKit Type:\u003c\/strong\u003e Dual high-pressure fuel pump installation hardware (pump not included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCP3 Pump:\u003c\/strong\u003e This kit must be used with a 6.7L Cummins CP3 Pump\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Delivery:\u003c\/strong\u003e Each pump delivers half the total volume of fuel required, effectively sharing the fuel delivery load and reducing drive load on the original internal fuel pump by 50%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance Capability:\u003c\/strong\u003e With a factory CP4 in good condition, this dual fueler kit is capable of producing 900+ HP worth of high pressure fuel supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment Restriction:\u003c\/strong\u003e This product will NOT work with trucks that have dual alternators\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Recommendation:\u003c\/strong\u003e An upgraded low pressure fuel system is recommended when running this item\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Compatibility:\u003c\/strong\u003e If you have a factory dual-sided Serpentine belt you must re-use; if single-sided, the supplied belt must be used as replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is highly recommended due to fuel system complexity and high-pressure component handling. Confirm your fuel system setup, tuning requirements, and supporting modifications before purchase.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915771048245,"sku":"FP-530-1125","price":894.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/FP-530-1125-1.webp?v=1780531514"},{"product_id":"gen2-1-cp4-2-disaster-prevention-bypass-kit-for-2011-ford-6-7l-powerstroke","title":"Gen2.1 CP4.2 Disaster Prevention Bypass Kit For 2011+ Ford 6.7L Powerstroke","description":"\u003cp\u003eThis CP4.2 bypass kit fits Ford F-250\/F-350\/F-450 trucks with the 6.7L PowerStroke diesel engine, model years 2011 through 2025. The CP4.2 bypass kit safeguards fuel injectors, rails, lines, and tank from CP4 debris by splitting the fuel supply 25 inches away from the CP4 pump and routing return fuel through a billet filter head. The kit includes a Donaldson P550943 spin-on filter rated at 9-micron, 99% efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011–2025 Ford F-250\/F-350\/F-450 with 6.7L PowerStroke diesel engine\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e OE-style quick connect lines eliminate the need for cutting the factory supply line, which is a debris introduction point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Supply Split:\u003c\/strong\u003e The Gen2.1 fuel supply is split off into two separate lines 25 inches from the CP4, which will eliminate the chance of contaminated case fuel back-feeding into the clean fuel supply line.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReturn Filter Assembly:\u003c\/strong\u003e The Gen2.1 kit features a billet return filter head that accepts a readily-available Donaldson P550943 spin-on fuel filter which prevents debris from reaching the tank, fuel lines, and supply pump.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Specification:\u003c\/strong\u003e Donaldson P550943 spin-on filter with 9-micron, 99% efficiency rating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Thoroughly tested to improve CP4 output beyond 3,000 RPM; can extend truck usability even in the event of CP4 failure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmissions:\u003c\/strong\u003e CARB-Compliant, certified under EO# D-756-6 for emissions compliance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e CP4-6.7F-BP-G2.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThe kit features OE-style quick connect lines that eliminate the need for cutting the factory supply line and removes the need for compression fittings. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915772293429,"sku":"FP-556-1126","price":299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/FP-556-1126-1.webp?v=1780531545"},{"product_id":"fuel-primer-bulb-sealing-kit-2001-2016-chevy-gmc-6-6l-duramax-diesel-2500-3500","title":"Fuel Primer Bulb Sealing Kit 2001-2016 Chevy GMC 6.6L Duramax Diesel 2500 3500","description":"\u003cp\u003eThis fuel primer bulb sealing kit eliminates the leak-prone OEM primer bulb in your 2001–2016 Chevy and GMC 2500 \/ 3500 trucks with 6.6L Duramax diesel engines. When running an aftermarket positive displacement lift pump like the Fleece PowerFlo, this fuel primer bulb sealing kit allows you to eliminate the leak prone primer bulb from your fuel system. Bad seals in the fuel filter head cause the primer to lose the vacuum needed to pull fuel from the tank, introducing air into the fuel system that can cause hard starts and stalling.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2001–2004 Chevy Silverado \/ GMC Sierra 2500 \/ 3500 -- LB7\u003c\/li\u003e\n  \u003cli\u003e2004.5–2005 Chevy Silverado \/ GMC Sierra 2500HD \/ 3500HD -- LLY\u003c\/li\u003e\n  \u003cli\u003e2006–2007 Chevy Silverado \/ GMC Sierra 2500HD \/ 3500HD -- LBZ\u003c\/li\u003e\n  \u003cli\u003e2007.5–2010 Chevy Silverado \/ GMC Sierra 2500HD \/ 3500HD -- LMM\u003c\/li\u003e\n  \u003cli\u003e2011–2016 Chevy Silverado \/ GMC Sierra 2500HD \/ 3500HD -- LML\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Removes the factory primer bulb and removes the ability to prime fuel at the fuel filter head assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing Cap:\u003c\/strong\u003e Includes a 1\/8\" NPT port to feed a low pressure fuel gauge or cap it off with the included NPT plug.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Kit includes two screw options (standard and metric)—thread in by hand each screw type and use the thread pitch with the best fitment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Fuel primer cap, 1\/8 inch NPT plug, and fasteners.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.0 lbs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 3.0\" wide x 2.0\" high x 3.0\" long.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThere is variation amongst the model years, so always test first by hand to verify the thread pitch on your vehicle. This kit is only recommended if you have an aftermarket lift pump assembly.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915772752181,"sku":"GM-490-0116","price":52.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/GM-490-0116-1.webp?v=1780531536"},{"product_id":"billet-aluminum-fuel-filter-cap-2017-2024-gmc-chevrolet-l5p-6-6l-duramax-diesel","title":"Billet Aluminum Fuel Filter Cap 2017-2024 GMC Chevrolet L5P 6.6L Duramax Diesel","description":"\u003cp\u003eBuilt from 6061 billet aluminum, this fuel filter cap is a direct fit replacement for 2017–2024 Chevrolet Silverado and GMC Sierra HD trucks with the 6.6L L5P Duramax diesel engine. It provides improved protection—particularly in extreme cold weather when plastic caps are prone to cracking or rounding off. The billet aluminum fuel filter cap resists cracking, wear, and repeated service use better than OEM plastic, making it a proven upgrade for fuel system reliability.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2017-2024 Chevrolet Silverado 2500HD\/3500HD -- L5P 6.6L Duramax\u003c\/li\u003e\n  \u003cli\u003e2017-2024 GMC Sierra 2500HD\/3500HD -- L5P 6.6L Duramax\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061 billet aluminum, machined\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSocket Size:\u003c\/strong\u003e 36mm socket for removal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrain Valve:\u003c\/strong\u003e Billet aluminum drain valve that requires no tools for draining\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Eliminates cracking and rounding off from water separator replacement and freeze cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eThis billet aluminum fuel filter cap is a bolt-on direct fit replacement using the same 36mm socket as your OEM cap. No special tools are required—simply remove the old cap and screw the new one on.\u003c\/p\u003e\n\n\u003cp\u003eCheck local emissions regulations before purchase. Professional installation is recommended.\u003c\/p\u003e\n\n\u003cp\u003eGet the right part the first time.\u003c\/p\u003e","brand":"Performance Parts Factory","offers":[{"title":"Default Title","offer_id":52915774259509,"sku":"GM-508-1724","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/5036\/3957\/files\/GM-508-1724-1.webp?v=1780531491"}],"url":"https:\/\/www.performancepartsfactory.com\/collections\/fuel-systems.oembed","provider":"Performance Parts Factory","version":"1.0","type":"link"}