View 2 Photos View 0 Videos Caterpillar 3126B Engine for a 2004 Kenworth T300 Contact for price 3126B ESN#HEP37496 330HP WILL TEST RUN AND CHECK BEARINGS. 180 DAY WARRANTY ON HEAD BLOCK AND CRANK., Serial#: HEP37496, Horse Power: 330 ConditionUsedHorse Power330 HPFits To Make(s)KenworthFits To Model(s)T300Will Fit Year(s)2004Stock Number50926-4 MLS Number14370991CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info