Rebuild your 2023 Polaris Sportsman 850 UTV (SxS) to its original performance with nFLOW's Polaris reman engines, designed to meet or exceed OEM specifications. Ideal for replacing a malfunctioning engine, our process ensures your off road UTV runs as intended, with reliability at the forefront. Experience the commitment to quality and durability in every component:

Precision-Engineered Internal Components

Cylinder Head: Comes with an upgraded valve train in a new or remanufactured cylinder head, based on current part availability.
Top End Components: Our comprehensive rebuild includes a CNC machined and diamond honed cylinder, new upgraded pistons, ring sets, circlips, a camshaft timing chain, and all required gaskets and seals.

Robust Bottom End Components

Crankshaft: Uses new or remanufactured crankshafts based on availability, each adhering to strict quality standards.
Bearings & Oil System: Features upgraded bearings and a new oil pump & chain, complete with all necessary gaskets and seals for a solid foundation.

Included External Components

Your engine comes equipped with:

Stator cover gasket
Exhaust manifold gasket

Exclusions for Clarity:

To facilitate integration with your existing parts, the following are not included:

Oil filter
Spark plugs
Stator, stator cover
Flywheel
Oil
Mechanical water pump seal

Benefits of Choosing Our Remanufactured Engine:

Match OEM Specifications: Our engines are meticulously crafted to match the specifications of your original engine, ensuring reliable performance.
6-Month Warranty: We back our remanufactured engines with a 6-month warranty for peace of mind.
Expert Support: Enjoy a complimentary fitment consultation to ensure perfect engine compatibility.

Thumbnail Filmstrip of 2023 Polaris Sportsman 850 Engine Images

Manufacturer: Polaris SKU: 2209890 2023 Polaris Sportsman 850 Engine

Precision-Engineered Internal Components

Robust Bottom End Components

Included External Components

Exclusions for Clarity:

Benefits of Choosing Our Remanufactured Engine:

Extend Your Warranty Today