Featured Item View 5 Photos View 0 Videos 2021 Caterpillar 3406E Engine $36,000 USD Engine Rebuilding 2020 Caterpillar 3406E, Hp:550 S#2WS CORE EXCHANGE NEEDED Warranty ConditionRemanufacturedPart Number9007640Weight3500Stock Number2035 MLS Number11079751CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED 1996 Caterpillar 3406B Engine 425HP Tested Runner – Warranty Recently Updated $19,780 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE (INTERCOOLER) Warranty ConditionUsedHorse Power425 HPStock Number1242 MLS Number11212848CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 1991 Caterpillar 3406B Engine & 3406C 425HP Tested Runner – Warranty Recently Updated $19,780 USD GOOD RUNNING ENGINE, CORE EXCHANGE NEEDED Dismantled From: FREIGHTLINER Warranty ConditionUsedHorse Power425 HPStock Number1505 MLS Number12102171CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 1 Video Caterpillar 3406C REBUILT Engine Tested Runner – Warranty Recently Updated $30,000 USD REBUILT CAT ENGINE 3406C /ARR:128-7032 Warranty ConditionUsedHorse Power587 HPStock Number2012 MLS Number13372812CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 12 Photos View 0 Videos USED 1994 CAT 3406C 425HP Engine – Tested Runner – Warranty $18,780 USD Caterpillar 3406C – 425HP – Mechanical – Used – Tested Runner – Warranty, Reliable Caterpillar 3406C diesel engine removed from a running unit and verified as a tested runner prior to... Warranty ConditionUsedHorse Power425 HPStock Number2199 MLS Number14386007CategoryEngines Last Updated5/22/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos USED 1988 CAT 3406C 425HP Engine – Tested Runner – Warranty $18,780 USD Caterpillar 3406C – 425HP – Mechanical – Used – Tested Runner – Warranty, Reliable Caterpillar 3406C diesel engine removed from a running unit and verified as a tested runner prior to... Warranty ConditionUsedHorse Power425 HPStock Number2189 MLS Number14345370CategoryEngines Last Updated5/1/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos USED CAT 3406E Engine 550HP | Serial 2WS | 1999-2000 | Heavy Duty Diesel Motor TESTED, WARRANTY $22,780 USD Caterpillar CAT 3406E Diesel Engine for Sale – 550HP, We are offering aCAT 3406E enginein good used condition, a reliable and powerful option for heavy-duty truck applications.... Warranty ConditionUsedHorse Power550 HPWill Fit Year(s)1999-2000Stock Number2184 MLS Number14321708CategoryEngines Last Updated5/23/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 1999 REBUILT -Caterpillar 3406 2WS Engine $35,000 USD 1999 Caterpillar 3406E Diesel Engine, Jake Brakes, 2WS, 500HP. Warranty ConditionRemanufacturedHorse Power500 HPStock Number2116 MLS Number13700573CategoryEngines Last Updated3/25/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos USED- 2001 Caterpillar 3406E Engine $30,000 USD GOOD RUNNING ENGINE. CORE EXCHANGE NEEDED Warranty ConditionUsedHorse Power550 HPPart NumberTRACKING:37520495Stock Number1807 MLS Number12644497CategoryEngines Last Updated3/19/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos USED - 1992 Caterpillar 3406C Diesel Engine, FULLY TESTED / WARRANTY $18,000 USD GOOD RUNNING ENGINE Warranty ConditionUsedHorse Power425 HPStock Number2141 MLS Number14153944CategoryEngines Last Updated2/19/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED -Caterpillar 3406C Diesel Engine, | Fully Tested | Warranty $18,000 USD GOOD RUNNING USED ENGINE Warranty ConditionUsedHorse Power425 HPWill Fit Year(s)1990-1998Stock Number2138 MLS Number14149942CategoryEngines Last Updated2/18/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos REBUILT - 1994 Caterpillar 3406C Engine (MECHANIC) Tested Runner – Warranty $30,000 USD REBUILT GOOD RUNNING ENGINE Warranty ConditionRemanufacturedHorse Power425 HPStock Number2099 MLS Number13585076CategoryEngines Last Updated6/16/2026 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Caterpillar 3406E Engine $18,000 USD (GOOD USED/ RUN TESTED/ FULLY INSPECTED) Caterpillar 3406E Diesel Engine /We have different models such as: Serial # 6TS $16k, Serial # 1LW $18k, serial # 2WS $22k, Serial # 5EK $14k Core... ConditionUsedStock Number1881 MLS Number13131535CategoryEngines Last Updated7/14/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1997 Caterpillar 3406E Engine $30,000 USD NEW INFRAME KIT, NEW TURBO CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionRemanufacturedHorse Power550 HPStock Number1146 MLS Number11407246CategoryEngines Last Updated7/14/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 1996 Caterpillar 3406E Engine $17,500 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE Warranty ConditionUsedHorse Power550 HPL x W65 x 63Part Number883EZDARKWeight3500Stock Number9647 MLS Number11277204CategoryEngines Last Updated7/14/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1995 Caterpillar 3406E 5EK Engine $17,500 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE. Warranty ConditionUsedHorse Power475 HPStock Number1169 MLS Number11410136CategoryEngines Last Updated7/14/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1992 Caterpillar 3406C Engine $17,000 USD GOOD RUNNING ENGINE, CORE EXCHANGE IS NEEDED Warranty ConditionUsedHorse Power425 HPPart Number3ZJ38500Stock Number1507 MLS Number12106562CategoryEngines Last Updated6/25/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos USED - 1993 Caterpillar 3406C Mechanic Engine for 1992-1993 $17,000 USD TheCat 3406C Diesel Fire Pump Enginehas ratings of218-359 bkW (292-482 bhp) Warranty ConditionUsedHorse Power425 HPWill Fit Year(s)1992-1993Stock Number2110 MLS Number13665895CategoryEngines Last Updated6/25/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 1 Video 1999 Caterpillar 3406E 1LW Engine $28,000 USD GOOD RUNNING ENGINE, WACHT THE VIDEO Warranty ConditionRemanufacturedHorse Power550 HPStock Number2031 MLS Number13524534CategoryEngines Last Updated4/25/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1999 Caterpillar 3406 2WS USED Engine $23,500 USD GOOD USED ENGINE CATERPILLAR - 2WS**** Warranty ConditionUsedHorse Power550 HPStock Number2013 MLS Number13372845CategoryEngines Last Updated2/4/2025 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Caterpillar 3406E Engine / 1LW $16,000 USD GOOD RUNNING ENGINE, CORE EXCHANGE IS NEEDED ! Warranty ConditionUsedHorse Power500 HPStock Number1849 MLS Number12754227CategoryEngines Last Updated4/4/2024 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos 1997 Caterpillar 3406E Engine $17,000 USD GOOD RUNNING ENGINE, CORE EXCHANGE NEEDED Warranty ConditionUsedHorse Power475 HPPart Number907854Stock Number1657 MLS Number12459644CategoryEngines Last Updated11/30/2023 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1999 Caterpillar 3406E 2WS Engine $22,000 USD GOOD RUNNING ENGINE, CORE EXCHANGE NEEDED Warranty ConditionUsedHorse Power550 HPStock Number1508 MLS Number12124905CategoryEngines Last Updated6/14/2023 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1999 Caterpillar 3406E / 2WS Engine $33,000 USD GOOD RUNNING ENGINE, CORE IS NEEDED Warranty ConditionRemanufacturedHorse Power550 HPPart Number171-5198Stock Number1503 MLS Number12081672CategoryEngines Last Updated5/24/2023 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 1998 Caterpillar 3406E Engine $17,000 USD CORE EXCHANGE NEEDED, GOOD RUNNING ENGINE 455- to 500 HP Warranty ConditionUsedHorse Power550 HPStock Number1141 MLS Number11407228CategoryEngines Last Updated3/29/2023 LocationMedley, FL, US Sold ByOptimum Truck Parts LLC (844) 938-___ SHOWNUMBERCall Seller Email Seller Save More Info