View 2 Photos View 0 Videos Caterpillar 3406E Engine for a 2003 Peterbilt 379 Newly Listed $19,995 USD CAT 3406E, #5EK81839, 475HP, WILL TEST RUN AND CHECK BEARINGS IN OUR ENGINE SHOP, 180 DAY WARRANTY ON HEAD BLOCK AND CRANK. NOTES, Serial#: 5EK, Horse Power: 475 ConditionUsedHorse Power475 HPFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2003Stock Number51126-6 MLS Number14424382CategoryEngines Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406E Engine for a 2005 Peterbilt 379 $24,995 USD CAT 3406E 5EK 40PIN CONNECTOR, RUNS GOOD, NO BLOWBY, NEW CAT REBUILD WAS SWAPPED INTO TRUCK, PRICE IS FULL CONVERSION WITH HARNESS AND MOUNTS AND CHARGE AIR COOLER TUBES. UNSURE OF MILES.... ConditionUsedFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2005Stock Number40626-5 MLS Number14307817CategoryEngines Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406E Engine for a 1994 Peterbilt 379 Contact for price CAT 3406E 550HP ESN#5EK08766. PENDING INSPECTION, RUNS GOOD, WILL CHECK BEARINGS, 180 DAY WARRANTY ON HEAD, BLOCK AND CRANK.APROX 250K ON REBUILD, GETTING PAPERWORK, Serial#: 5EK08766,... ConditionUsedHorse Power550 HPFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)1994Stock Number21426-4 MLS Number14166704CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar 3406E Engine for a Kenworth $12,995 USD PENDING INSPECTION. ENGINE RUNS GOOD, NEW ROD AND MAIN BEARINGS.CAMSHAFT/ROCKERS LOOK GOOD. TURBO LOOKS OK, RUNS GOOD NO BLOWBY. 180 DAY WARRANTY ON HEAD BLOCK AND CRANK WILL FIT 40 PIN... ConditionUsedHorse Power475 HPFits To Make(s)KenworthPart Number3406E 40 PINStock Number6TS15354 MLS Number14146892CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar 3406E Engine for a 1996 Volvo AUTOCAR ACL64 $24,995 USD 3406E 435HP 5EK63620 PENDING INSPECTION, WILL TEST RUN AND INSPECT IN OUR ENGINE SHOP., Serial#: 5EK63620, Horse Power: 435 ConditionUsedHorse Power435 HPFits To Make(s)VolvoFits To Model(s)AUTOCAR ACL64Will Fit Year(s)1996Stock Number20626-5 MLS Number14142156CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406 Engine for a 1999 Freightliner FLD120 Contact for price CAT 3406E 375 HP,1LW PENDING INSPECTION WILL TEST RUN AND CHECK BEARINGS. ECM CAN BE FLASHED TO 450 HP WITHOUT HARDWARE CHANGES, ABOVE 450HP WOULD REQUIRE INJECTORS, TURBO AND POSSIBLE... ConditionUsedHorse Power375 HPFits To Make(s)FreightlinerFits To Model(s)FLD120Will Fit Year(s)1999Stock Number12826-3 MLS Number14119627CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar 3406E Engine for a 1995 Kenworth W900 $12,995 USD CAT 3406E 5EK 435-475 HP RUNS GOOD,DOES HAVE MODERATE BLOWBY. WILL INSPECT ROD AND MAIN BEARINGS. HAS BRAKE RETARDER. NOTES!!!, Serial#: 5EK28571, Horse Power: 000 ConditionUsedFits To Make(s)KenworthFits To Model(s)W900Will Fit Year(s)1995Stock Number110125-4 MLS Number13989055CategoryEngines Last Updated6/13/2026 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 1990 Ford LTL9000 Contact for price CORE ENGINE ASSEMBLY/ CRACKED HEAD/, Serial#: 4MG70146, Horse Power: 425 ConditionUsedHorse Power425 HPFits To Make(s)FordFits To Model(s)LTL9000Will Fit Year(s)1990Part Number4MGStock Number40925-6 MLS Number13517098CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 1 Video Caterpillar 3406E Engine for a 1998 Kenworth T800 $19,995 USD 3406E 475HP 6TS, LOOKS FRESH, RUNS GOOD NO BLOWBY, ROD AND MAIN BEARINGS LOOK GOOD, CAM AND TURBO LOOK OK, 180 DAY WARRANTY BLOCK HEAD CRANK, Serial#: 6TS24754, Horse Power: 475 ConditionUsedHorse Power475 HPFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1998Stock Number32525-1 MLS Number13491570CategoryEngines Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406E Engine for a 2015 Kenworth T800 $18,995 USD 3406E 550HP 5EK RUNS GOOD VERY LIGHT BLOWBY/ VIDEO 5-21. OWNER STATES AROUND 50K MILES ON OVERHAUL. NO PAPERS. WILL PULL PAN AND CHECK ROD AND MAIN BEARINGS/ INSPECT CAMSHAFT. 180 DAY... ConditionUsedHorse Power550 HPFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2015Part Number3406EStock Number52124-1 MLS Number12889873CategoryEngines Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 1 Video Caterpillar 3406E Engine for a 1996 Peterbilt 379 $19,995 USD 3406E 475HP 5EK WILL TEST RUN, CHECK ROD AND MAIN BEARINGS, 180 DAY WARRANTY BLOCK HEAD CRANK,OWNER SAID RAN GOOD, JUST ROUTINE MAINTENANCE, Serial#: 5EK64044, Horse Power: 475 ConditionUsedHorse Power475 HPFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)1996Stock Number121724-1 MLS Number12675669CategoryEngines Last Updated5/15/2026 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 2 Photos View 0 Videos Caterpillar 3406 Engine for a 1995 Kenworth T600 Contact for price CORE ENGINE/5EK 40 PIN. POSSIBLE BROKEN CRANK, HAS FRONT SUMP PAN. TURBO INVENTORIED SEPARATE,ECM SEPARATE, Serial#: 5EK30349, Core Charge: NA, Horse Power: 435, Casting#: 5EK30349 ConditionUsedHorse Power435 HPFits To Make(s)KenworthFits To Model(s)T600Will Fit Year(s)1995Part Number5EKStock Number12120-9 MLS Number10055689CategoryEngines Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Caterpillar 3406B Engine - 425 HP $32,995 USD ***BUILD TO ORDER*** COMPLETE OUT OF FRAME OVERHAUL. REMAN HEAD,PUMP,TURBO,INJECTORS,PISTONS/ LINERS. 1 YR UNLIMITED MILES. HAS BEEN TESTED. CALL FOR MORE INFO ///NOTES////, Serial#:... ConditionRemanufacturedHorse Power425 HPEngine ModelCaterpillar 3406BStock Number3406B MLS Number9001097CategoryEngines Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info