5 0 Caterpillar 3126B Rocker Arm $175 USD Caterpillar 3126B Rocker Assembly, Rocker Arm Part #s 1538471, 1538468. All Used Engine Parts Sold With a 30 Day “Parts Only†Warranty. In The Event Of Failure, The Used Engine Part... ConditionUsedStock Number4536376 MLS Number13888859CategoryRocker Arms Last Updated10/15/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info