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BPRATV 87mm Big Bore Cylinder (1 Year Warranty)
If your engine is down on power or feels flat at high RPMs
In one area Chromoly is stronger than Ti
96mm Stock Bore Cylinder Motor Rebuild Kit
16 17 Polaris Sportsman 450 HO BPRATV Crankcase Main Bearing Bushing Spacer Kit Tool BPRATV 87mm Big Bore CylinderElevate your Polaris Sportsman 450 with this BPRATV's superior OEM replacement crankcase bushing and bearing spacer. CNC machined to Polaris factory specifications Made in the USA for unparalleled quality and durability Replaces OEM parts 5137838 and 5137496 (Bushing is discontinued by Polaris) Stronger, more durable, and built to last We designed the bearing spacer and bushing keeping our customers in mind, so they can get a better quality product
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