{"product_id":"fuel-pump-assembly-for-2021-2026-honda-crf450-crf250-oem-replacement-for-16700-mke-af3-16700-mke-af1-hfp-a268-qfs","title":"Fuel Pump Assembly for 2021-2026 Honda CRF450\/CRF250 - OEM Replacement for 16700-MKE-AF3 \u0026 16700-MKE-AF1, HFP-A268 | QFS","description":"\u003cdiv class=\"product-description\"\u003e\u003cdiv class=\"pro-desc-content\" style=\"overflow-x: auto\"\u003e\n\u003cp\u003eHFP-A268 is a premium OEM replacement in-tank fuel pump module assembly engineered specifically to match the ultra-compact, high-pressure constraints of modern Honda CRF Unicam and dual-overhead-cam (DOHC) motocross engines. Serving as a complete, pre-assembled drop-in structural replacement for Honda factory part numbers 16700-MKE-AF3 and 16700-MKE-AF1, this plug-and-play unit fully restores fuel subsystem pressure. It features precise compatibility for high-performance fuel-injected race bikes spanning the 2021 through 2026 model years—including the lightweight CRF250R and the premier open-class CRF450R four-stroke tracks.\u003c\/p\u003e\n\u003cp\u003eModern motocross fuel systems store the pump, primary filter sock, high-density paper filter canister, and structural pressure bypass regulator inside a tight plastic hanger framework nested directly inside the fuel tank base. Dirt bike fuel cells operate in harsh track conditions, facing relentless casing impacts, washboard vibrations, pressure washdowns, and silt contamination. Fine track dust easily bypasses basic neck filters during refuel stops, clogging the internal multi-stage filter paper. Furthermore, fuel left sitting between riding seasons rapidly breaks down into a sticky varnish. This overworks the internal pump core, causing severe engine sputtering at high RPMs, lean hesitation when cracking the throttle open on jump faces, hard starting on the starting gate, or a total engine flame-out.\u003c\/p\u003e\n\u003cp\u003eHFP-A268 fixes these racing bottlenecks by replacing the entire delivery housing as a single, factory-tested unit. Rather than forcing you to painstakingly tear down a delicate, brittle plastic original equipment cluster to swap standalone pieces, this module arrives pre-configured with a brand-new high-pressure pump motor, a factory-calibrated fuel pressure regulator, and an integrated internal fine filtration element. To finish your module swap out with a reliable seal, the kit features a replacement base plate tank seal. This perimeter O-ring is molded entirely from a high-performance synthetic rubber compound that provides superior chemical resistance and compression retention under constant fuel exposure, stopping external vapor leaks and holding system pressure tight.\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-In Module: \u003c\/strong\u003eArrives completely pre-assembled with the pump, filter, and regulator pre-housed inside a factory-tested assembly, cutting repair times to a minimum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Synthetic Rubber: \u003c\/strong\u003eThe supplied structural base flange tank seal and internal pathway connectors are molded from premium industrial-grade FKM and elastomers to resist degradation from modern pump gas (E10) and race fuels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstant Pressure Restoration: \u003c\/strong\u003eEliminates high-RPM flat spots and dangerous off-idle hesitation by re-establishing smooth, unyielding fuel line pressure across the full rev range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration-Isolated Architecture: \u003c\/strong\u003eCrafted using heavy-duty, reinforced composite polymer casings engineered to resist cracking, structural shifting, and electrical clip failure under intense motocross track vibrations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\u003cp\u003e\u003cstrong\u003eTHE IDEAL REPLACEMENT FOR OEM #:\u003c\/strong\u003e 16700-MKE-AF3, 16700-MKE-AF1\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e Complete Fuel Pump Module Assembly, Tank Seal Kit\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 30px;\"\u003e\u003cp\u003e\u003cstrong\u003eWARNING: \u003c\/strong\u003eThis product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/www.p65warnings.ca.gov\/\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Quantum Fuel Systems","offers":[{"title":"Default Title","offer_id":67957880356969,"sku":"HFP-A268","price":139.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/0058\/files\/qfs-fuel-pump-assembly-for-2021-2026-honda-crf450crf250-oem-replacement-for-16700-mke-af3-and-16700-mke-af1-hfp-a268-or-qfs__96451.1789447636.jpg?v=1793699755","url":"https:\/\/2wheelhq.com\/products\/fuel-pump-assembly-for-2021-2026-honda-crf450-crf250-oem-replacement-for-16700-mke-af3-16700-mke-af1-hfp-a268-qfs","provider":"2WheelHQ","version":"1.0","type":"link"}