HFP-SK4 is a premium OEM replacement in-tank fuel pump strainer kit engineered to restore suction filtration performance and protect high-pressure fuel delivery modules on Arctic Cat and Polaris snowmobiles. Serving as a direct-fit replacement for factory part number 2877636, this component kit features an upgraded 2 S100 + S101 triple-strainer configuration designed to snap onto the base of the stock internal fuel pump assembly. It provides broad application coverage across two-stroke EFI and four-stroke sled platforms spanning the 2001 through 2025 model years, including the Arctic Cat Mountain Cat, King Cat, F-Series (F5, F6, F8, F1000, F 1100), Bearcat / 5000, M-Series (M 800, M 1100, M 6000, M 8000, M 9000), Blast 4000, Norseman, as well as the Polaris 600/800 IQ, Shift, and Switchback / Dragon lines. It systematically resolves critical fuel-starvation issues caused by clogged, collapsed, or varnish-bound pickup socks, such as high-RPM engine bogging, lean-burn popping under heavy load, hard cold starting, and fuel pressure drops during steep mountain climbs or deep powder carving.

Snowmobiles operate under severe duty cycles, experiencing extreme sub-zero temperatures, intense chassis flex, and extended off-season storage layups. During summer storage, moisture condensation builds up inside the fuel tank, leading to fuel phase separation, internal rust scale, and sticky varnish deposits. These contaminants sink to the bottom of the tank where the primary intake strainers sit. Over time, original factory strainers become clogged or structurally brittle, starving the electric pump core of fuel volume and forcing the motor to run hotter while pulling excess electrical current.

HFP-SK4 addresses these intake restrictions by renewing the first line of defense in your sled's fueling loop. The multi-layer gradient woven mesh design traps microscopic tank debris, varnish scale, and ice crystals before they can enter the pump impeller or travel downstream to damage precision fuel injectors. The structural frame and mounting interfaces utilize high-performance synthetic rubber seals engineered to remain flexible, resilient, and crack-free when continuously submerged in modern pump gas, high-octane fuels, winter storage additives, and ethanol-blended fuels.

Features & Benefits:

• Triple-Strainer 2 S100 + S101 Configuration: Expanded multi-sock filtration surface area ensures continuous, uninhibited fuel pickup across severe climbing angles, side-hilling, and low tank conditions.
• First-Line Suction Protection: Captures fine silt, rust scale, and tank debris before it enters the electric pump cavity, preventing impeller wear and internal pump seizure.
• High-Performance Synthetic Rubber Seals: Mounting interfaces feature industrial-grade FKM elastomers that resist hardening, swelling, or cracking in extreme sub-zero conditions.
• Gradient Multi-Layer Mesh: Maintains high fuel flow rates under heavy throttle demand, eliminating mid-range bogging and top-end lean air-fuel conditions.
• Extends Fuel Pump Lifespan: Uninhibited suction flow keeps the pump core properly lubricated and cooled by fuel flow, reducing electrical current draw.
• Cost-Effective Maintenance Kit: Replaces only the high-wear intake filter elements during seasonal tune-ups, avoiding the need for a costly complete fuel pump assembly.
   

THE IDEAL REPLACEMENT FOR OEM #: 2877636

Package Includes: Fuel Strainer

WARNING: This 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 www.P65Warnings.ca.gov.