Polaris ProXP

BC8291-2 - Polaris XP Turbo / XP 1000 (98mm x .052”) Cometic MLS Head Gasket

MLS for O-ring cylinder jug, 98mm Spread Bore, .052” Thickness - Cometic three layer gaskets comb...

MLS for O-ring cylinder jug, 98mm Spread Bore, .052” Thickness - Cometic three layer gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLS head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around o...

BC8290-2 - Polaris XP Turbo / XP 1000 (93/94mm x .052”) Cometic MLX Head Gasket

MLX design for non O-ringed cylinder jug fits 93mm or 94mm bore, .052” Thickness - Cometic three ...

MLX design for non O-ringed cylinder jug fits 93mm or 94mm bore, .052” Thickness - Cometic three layer gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLX head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a pr...

BC4900 - Polaris XP1000/XPTurbo Main Bearings (oversize)

New King main bearings for the Polaris RZR platform are now available. The BC 4340 billet XP cra...

New King main bearings for the Polaris RZR platform are now available. The BC 4340 billet XP crankshafts are an improvement to the rod bearing failures but they aren’t the cure for the oiling issues. These exclusive mains from King Bearing however do provide the proper oiling from the mains to the rods with some qualified machining. King XP line bearings are a hardened coated race bearing vs the OE soft Babbitt bearing. To thoroughly “bulletproof” the case, we designed an oversize O.D. (1.75...

BC8291-3 - Polaris XP Turbo / XP 1000 (93mm x .051”) Cometic MLS Head Gasket

MLS for O-ring cylinder jug, 93mm Bore only, .051” Thickness - Cometic three layer gaskets combin...

MLS for O-ring cylinder jug, 93mm Bore only, .051” Thickness - Cometic three layer gaskets combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLS head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around oil...

TPR006 - TPR XPTurbo/XP1000 Crankcase Breather Kit

RZR XP1000 and XPT motors are notorious for excessive crank case pressure, the factory breather ...

RZR XP1000 and XPT motors are notorious for excessive crank case pressure, the factory breather system recirculates crank case blow by back into the intake system from a breather box on the lower front side of the engine case.   The main problem with this design is how close the breather box is to the oil pan allowing oil to be carried out with the crankcase blow by and then put into your intake charge and burned. XPT models are known for rod bearing failures due a number of issues, one bein...

BC9913 - Polaris ProXP / Turbo R CNC Cylinder Head - Big Port 38.8mm/33mm Valves

Use pulldowns above to build out your head. The BC core exchange program works three ways: 1) Buy...

Use pulldowns above to build out your head. The BC core exchange program works three ways: 1) Buy one of BC's new heads outright, no exchange. 2) Send a new head in for even exchange for one of BC's new in-stock heads. Check with BC for availability. 3) Send a used head in, receive that same head back + $150 for complete inspection prior to machine work. BC only accepts new, never-been ran Polaris ProXP / Turbo R (#3023564) cylinder heads as new core exchanges. BC uses only new ProXP / Turbo ...