View 2 Photos View 0 Videos Caterpillar 3406B Engine for a 1994 Peterbilt 378 $10,995 USD CAT 3406B/ EARLY C 425HP #3ZJ40133,HAS ENGINE RETARDER/CAN REMOVE. WILL TEST RUN AND CHECK BEARINGS. 180 DAY WARRANTY ON HEAD, BLOCK, AND CRANK. NOTES, Serial#: 3ZJ40133, Horse Power: 425 ConditionUsedHorse Power425 HPFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)1994Stock Number71326-3 MLS Number14509621CategoryEngines Last Updated7/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar 3406B Engine for a 1988 Freightliner FC60 Contact for price CORE ENGINE ASSEMBLY, Ok for parts. Injection pump Turbo, Engine,, Serial#: CAT, Horse Power: 425, Casting#: CAT ConditionUsedHorse Power425 HPFits To Make(s)FreightlinerFits To Model(s)FC60Will Fit Year(s)1988Part Number3406BStock Number80922-1 MLS Number11600483CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 1 Video Caterpillar 3406B Engine for a 1990 International 9400 Contact for price GOOD ENGINE HAS BLOW BY LAST RAN 10/20/23, Serial#: 4MG92986, Horse Power: 425 ConditionUsedHorse Power425 HPFits To Make(s)InternationalFits To Model(s)9400Will Fit Year(s)1990Stock Number045953-1 MLS Number12395697CategoryEngines Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406B Engine - 370 HP Contact for price GOOD ENGINE RAN 2/7/20, Serial#: 7FB26460, Horse Power: 370, Casting#: 7FB26460 ConditionUsedHorse Power370 HPStock Number1314 MLS Number10084838CategoryEngines Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Caterpillar 3406B Engine for a 1989 Kenworth T600 Contact for price - - Part Make: Caterpillar core engine, Serial#: 4MG53257, Horse Power: N/A, Casting#: 4MG53257 ConditionUsedFits To Make(s)KenworthFits To Model(s)T600Will Fit Year(s)1989Stock Number537351-1 MLS Number9389000CategoryEngines Last Updated6/13/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Caterpillar 3406B Engine for a 1989 Western Star 4964 Contact for price core, Serial#: 4MG63392, Horse Power: N/A, Casting#: 4MG63392 ConditionUsedFits To Make(s)Western StarFits To Model(s)4964Will Fit Year(s)1989Stock Number925902-1 MLS Number9389361CategoryEngines Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info