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Condition: Used
Stock Number: P-85770
Serial Number: 1NKELB9XXMJ378611
Description: (Used) Caterpillar 3406B, ENGINE COMPONENT- Part Number: 7W4886, Material: Aluminum, Bearing Support, Reference images for condition, For more inf...
Updated: Tuesday, February 17, 2026 07:28 am
Location: Elkton, Maryland, USA
Seller: Complete Recycling Group - Heavy Truck Parts
Condition: Used
Stock Number: P-85773
Serial Number: 1NKELB9XXMJ378611
Description: (Used) Caterpillar 3406B, ENGINE OIL FILTER BASE- Part Number: 7N3451, Material: Steel, Reference images for condition, For more information abou...
Updated: Tuesday, February 17, 2026 07:28 am
Location: Elkton, Maryland, USA
Seller: Complete Recycling Group - Heavy Truck Parts
Condition: Used
Stock Number: 934-10251919 - SN:7F
Serial Number: 934-10251919 - SN:7FB32105
Description: USED 3406B CATERPILLAR ENGINE WITH 310 HP, AFTERCOOLER, COMPLETE,INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN STOCK. - FOR PRICE AND S...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 818
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 820
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 817
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 819
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 774
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 8157-1030254
Serial Number: 8157-1030254
Description: USED 1.990 CATERPILLAR 3406B MANUAL FUEL PUMP ENGINE, 425HP, JAKE BRAKE, AIR TO AIR, STOCK:1030254; ESN:5KJ01529, COMPLETE, INSPECTED AND TESTED RU...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 40925-6
Serial Number: 1FDYA90X3LVA18223
Description: CORE ENGINE ASSEMBLY/ CRACKED HEAD/
Updated: Tuesday, January 13, 2026 10:58 am
Location: Ucon, Idaho, USA
Seller: Holst Truck Parts
Condition: Used
Stock Number: 6935-0516242
Serial Number: 6935-0516242
Description: USED 1.990 CATERPILLAR 3406B AIR TO AIR ENGINE, 425HP, JAKE BRAKE, ESN:4MG87221, COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES I...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 984-10291918 - SN:8T
Serial Number: 984-10291918 - SN:8TC12622
Description: USED 3406B PEEC CATERPILLAR SEMI ELECTRONIC ENGINE, 350 HP, COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN STOCK. - FOR PRICE ...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 973-1029197 - SN:5KJ
Serial Number: 973-1029197 - SN:5KJ03934*
Description: USED 3406B CATERPILLAR ENGINE WITH 350 HP, COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN STOCK. - FOR PRICE AND SHIPPING CONT...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 624807-1
Description: ENGINE RAN 6/24/19
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 762-1007197 - SN:4MG
Serial Number: 762-1007197 - SN:4MG45450
Description: USED 3406B CATERPILLAR MECHANICAL ENGINE WITH 425 HP, JAKE BRAKE(ENGINE BRAKE) COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN ...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 296078-14
Description: good holding coolant
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 296078-16
Description: .
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 550026-13
Description: GOOD.
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 7624
Serial Number: 4MG30229
Description: (GOOD USED & TEST RUN & INTERNALLY INSPECTED) 1989 Caterpillar 3406 Diesel Engine with JAKE Brakes, 425HP @ 2100RPM, MECHANICAL FUEL PUMP, 3406B, 1...
Updated: Thursday, January 22, 2026 11:11 am
Location: Opa-Locka, Florida, USA
Seller: CA Truck Parts, Inc
Condition: Used
Stock Number: 99184
Serial Number: 1XP5DB9X9KD276600
Description: Used Caterpillar 3406B Engine Assy 4MG22973
Coreprice: 4500
Updated: Tuesday, December 30, 2025 08:23 am
Location: Crandall, Texas, USA
Seller: Tim Jordan's Truck Parts, Inc
Condition: Used
Stock Number: P-90684
Serial Number: 1NKWLB0X9KS532279
Description: (Used) 1989 Caterpillar 3406B, ENGINE ASSEMBLY- Family Number: KCT0893FPB1, Displacement: 14.6L, Horsepower: 425, : 7E1807, ESN: 4MG49286, Part Num...
Updated: Tuesday, February 17, 2026 07:28 am
Location: Elkton, Maryland, USA
Seller: Complete Recycling Group - Heavy Truck Parts
Condition: Used
Stock Number: 17853
Serial Number: 4MG71898
Description: Part suitable for: Standard tractor
VAT: The price shown is excluding VAT
VAT/margin: VAT qualifying
1989 Caterpillar 3406B diesel engine, 425 HP,...
Updated: Tuesday, February 17, 2026 07:33 am
Location: Carbondale, Pennsylvania, USA
Seller: Old Forge Power Equipment Inc.
Condition: Used
Stock Number: S1233
Serial Number: S1233
Description: 1989 CAT 3406B Used diesel engine for sale .425 HP. Tested and inspected with 120 day warranty . Call or visit our website for more information.
Updated: Tuesday, February 17, 2026 07:33 am
Location: Taylor, Pennsylvania, USA
Seller: Nationwide Heavy Truck Parts
Condition: Used
Stock Number: 780-1009193 - SN:4MG
Serial Number: 780-1009193 - SN:4MG48150
Description: USED 3406B CATERPILLAR ENGINE WITH 350 HP, COMPLETE, INSPECTED AND TESTED RUNNING ENGINE, ALSO MANY ENGINES IN STOCK - FOR PRICE AND SHIPPING CONT...
Updated: Tuesday, January 06, 2026 09:22 am
Location: Miami, Florida, USA
Seller: 4 Trucks Enterprises LLC
Condition: Used
Stock Number: 361191-1
Description: Ran 3/17/16
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 925902-1
Description: -
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 537351-1
Description: - - Part Make: Caterpillar core engine
Updated: Tuesday, January 27, 2026 09:39 am
Location: Ogden, Utah, USA
Seller: ROCKY MOUNTAIN TRUCK PARTS
Condition: Used
Stock Number: 32497M
Serial Number: 4MG07236
Description: Engine fully checked and inspected by Camion Dubois’ technicians.
Replaced parts:
New main bearing and rod bearing.
New thrust washer.
New ...
Updated: Wednesday, February 11, 2026 09:08 am
Location: St-Jean Baptiste De, Quebec, Canada
Seller: Dubois Trucks