2009-2013 TRX420FPE Rancher ES 4x4 w/ Power Steering 420cc. 2009 TRX420FPM Rancher 4x4 w/ Power Steering 420cc. Factory Racing Parts SAE 10W-40 Full Synthetic 4 Quart Oil Change Kit. Our 10W-40 Powersports Engine Oil is engineered specifically for 4-stroke motorcycle engines and transmissions.