Fits rear, left & right on the following Honda UTV models (excluding LE): 2016-2021 Pioneer 1000, 2016-2021 Pioneer 1000-5. Features stronger than OEM, 4140 chromoly steel axle bars. Greased with a moly based grease to provide superior joint lubrication. Fitted with neoprene CV boots for added wear and puncture resistance. Will fit Base, Premium, & Deluxe, just not any LE editions. Replaces OEM # (left) 42350-HL4-A01, 42320-HL4-A01, 42350-HL4-F01, (right) 42250-HL4-A01, 42250-HL4-F01, 42220-HL4-A01