View 1 Photo View 0 Videos New Caterpillar 3406B Head Spacer Plate .339" Thickness, Part # 225-3100 / 2253100 / 360474 $616.24 USD NEW HEAD SPACER PLATE. FITS MULTIPLE CAT APPLICATIONS. MOST COMMON 3406B .339 THICKNESS, Serial#: 225-3100 2253100 360474, Core Charge: 0, Casting#: 225-3100 2253100 360474 ConditionNewPart Number225-3100 2253100 360474Stock Number360474 MLS Number10536145CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar C15 Flywheel Housing Seal/Gasket for Cam, Part # 268-5589 $34.29 USD NEW FLYWHEEL HOUSING SEAL / GASKET FOR CAM. FITS CAT C15. PICTURE REFERENCE # 18, Serial#: 268-5589, Core Charge: 0, Casting#: 268-5589 ConditionNewPart Number268-5589 2685589 331426Stock Number331426 MLS Number10468653CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar C15 Flywheel Housing Seal/Gasket, Part # 331425 2685582 268-5582 $24.12 USD NEW FLYWHEEL HOUSING SEAL / GASKET FITS CAT C15. PICTURE REFERENCE # 17, Serial#: 2685582, Core Charge: 0, Casting#: 2685582 ConditionNewPart Number331425 2685582 268-5582Stock Number331425 MLS Number10468640CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar 3126/C7 Main Bearing Set (Upper/Lower), Part # 1077708 7W9414 $14.30 USD NEW MAIN BEARING SET (UPPER/LOWER) DOES ONE ROD. EACH ENGINE USES A QUANTITY OF 7. 3126 C7, Serial#: 1077708, Core Charge: 0, Casting#: 1077708 ConditionNewPart Number1077708 7W9414Stock Number370080 MLS Number10246228CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Exhaust Stud Kit, Manifold to Head, Fits 3406/C15/C16/C18, Part # ESK3406 $121.23 USD CATERPILLAR EXHAUST STUD KIT. MANIFOLD TO HEAD. FITS 3406 C15 C16 C18. 12) 1061792 STUDS 12) 2N2766 NUT, Serial#: 340107, Core Charge: 0, Casting#: 340107 ConditionNewPart Number340107 1061792 2N2766 ESK3406Stock Number340107 MLS Number10223385CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar 3406E/C15 Front Structure Gasket Kit $244.74 USD NEW 3406E AND C15 CATERPILLAR FRONT STRUCTURE GASKET KIT. 121250 3073966 O-RING 1 331384 1036045 ACCESSORY COVER SEAL 1 321316 1075769 O-RING 2 331415 1100004 COMPRESSOR SEAL 1... ConditionNewPart Number2336984 233-6984 1439609 1582839 1655145 1774347 1895133Stock Number331422 MLS Number10223384CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar Injector Cup Replacement Kit for 3406E C15 C16 C18, Part # 392091 $20.31 USD INJECTOR CUP REPLACEMENT KIT. FITS MULTIPLE CAT 3406E C15 C16 C18 MODELS. PRICE PER INJECTOR CUP, NEED 6 PER ENGINE. PICTURE REFERENCE # 10 392087 CUP ONLY INJECTOR SLEEVE, Serial#:... ConditionNewPart Number392091 2634920 9X7430 1662904Stock Number392091 MLS Number10183138CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Thermostat Housing Gasket for 3406E/C15/C16/C18, Part # 4N1156 $2.30 USD THERMOSTAT HOUSING GASKET. FITS MULTIPLE CAT 3406E C15 C16 C18 MODELS., Serial#: 4N1156, Core Charge: 0, Casting#: 4N1156 ConditionNewPart Number4N1156Stock Number331285 MLS Number10183137CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Primer Pump Hand, 3300 Series Application, Part # 380151 137-5541 380151-100 331269 $45.31 USD Primer Pump Hand Caterpillar 3300 Series application, Serial#: 380151 137-5541 380151-100 331269, Core Charge: 0, Casting#: 380151 137-5541 380151-100 331269 ConditionNewPart Number380151 137-5541 380151-100 331269Stock Number380151 MLS Number10122493CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Fuel Primer Hand Primer Pump for 3300/3400/3208 Series, Part # 380150 $42.95 USD Primer Pump FUEL PRIMER Hand Caterpillar 3300 3400 3208 Series application, Serial#: 380150 1052508 105-2508, Core Charge: 0, Casting#: 380150 1052508 105-2508 ConditionNewPart Number380150 1052508 105-2508 1W4999 1W5014 4N2511 4W0788 6N6800 8N6800 9S8617 1052508 105-2508Stock Number380150 MLS Number10122492CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar C12 Front Main Seal, Part # 126-0110 $26.54 USD NEW FRONT MAIN SEAL. FITS MULTIPLE C12 APPLICATIONS. 126-0110, Serial#: 126-0110, Core Charge: 0, Casting#: 126-0110 ConditionNewPart Number126-0110Stock Number126-0110 MLS Number9942686CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar C15 Engine Part $347.45 USD FITS C15 AND 3406E SINGLE TURBO COME WITH EXHAUST STUDS, BOLTS SLEEVES GASKETS CONES AND TURBO FLANGE GASKET, Serial#: EMSK3406E/C15, Core Charge: 0, Casting#: EMSK3406E/C15 ConditionNewPart NumberEMSK3406E/C15 340094Stock Number340094 MLS Number9915506CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos New Exhaust Manifold Gasket Fits Caterpillar 3406A/B/C, Part # 129-9452 $3.99 USD NEW EXHAUST MANIFOLD GASKET. FITS CATERPILLAR 3406 A /B /C. TAKES 6 TO DO COMPLETE INSTALLATION., Serial#: 129-9452, Core Charge: 0, Casting#: 129-9452 ConditionNewPart Number129-9452 1052873 7W5978 7W9108 9Y4582Stock Number331291 MLS Number9915505CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar 3406 Oil Pan Gasket, Fits Early C15, Part # 4N1151-6 331150 $30.45 USD NEW OIL PAN GASKET. PAPER STYLE. FITS 3406 AND EARLY C15 MODELS. SINGLE PIECE. FITS BLOCK STIFFENER PLATE ALSO., Serial#: 4N1151-6, Core Charge: 0, Casting#: 4N1151-6 ConditionNewPart Number4N1151-6 331150Stock Number4N1151-6 MLS Number9915501CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar 3126 Connecting Rod Bearing, Part # 224-6638 $13.78 USD NEW CONNECTING ROD BEARING. FITS 3126 MODELS. CHECK AGAINST OE OR SERIAL NUMBER. **ENGINE TAKES A QUANTITY OF 6. SOLD EACH**, Serial#: 224-6638, Core Charge: 0, Casting#: 224-6638 ConditionNewPart Number224-6638 370055 7W9415 1765743Stock Number370055 224-6638 MLS Number9911462CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar C13 Oil Pressure Sensor, Part # 1946725 $79.95 USD NEW OIL PRESSURE SENSOR FITS C13 KCB10000- 39998 MAY FIT OTHER MODELS., Serial#: NA, Core Charge: NA, Casting#: NA ConditionNewFits To Make(s)UniversalPart Number1946725Stock Number904-7027 MLS Number9397179CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar 3406E/C15 Non Acert Head Gasket Set, Part # 3406463 $405 USD NEW 3406E AND C15 NON ACERT HEAD GASKET SET. FITS MOST APPLICATIONS. COMES WITH HEAD GASKET AND CORRESPONDING GASKETS TO REPLACE CYLINDER HEAD. KIT DOES NOT INCLUDE INJECTOR O-RING KIT. ... ConditionNewEngine ModelCaterpillar C15Part Number3406463Stock Number3406463 MLS Number9005039CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar C15 Oil Pan Gasket, Part # 168-5248 $151.70 USD NEW OIL PAN GASKET. FITS C15 AND C15 ACERT. RUBBER REUSABLE STYLE. 168-5248, Serial#: 1685248, Core Charge: 0, Casting#: 1685248 Quantity4ConditionNewEngine ModelCaterpillar C15Part Number168-5248 331218Stock Number1685248 MLS Number9004807CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar Rear Main Crankshaft Seal for 3406E and C15, Part # 1425868 $45.99 USD NEW REAR MAIN CRANK SHAFT SEAL. FITS MOST 3406E AND C15 APPLICATIONS. 142-5868 1011716 1308107 2W1737, Serial#: 1425868, Core Charge: 0, Casting#: 1425868 Quantity6ConditionNewEngine ModelCaterpillar C15Part Number1425868 142-5868 1011716 1308107 2W1734Stock Number1425868 / 336012 MLS Number9004806CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar 3406E/C15 Rear Flywheel Housing Gasket, Part # 1555619 1085891 $38.87 USD NEW 3406E AND C15 CATERPILLAR REAR FLYWHEEL HOUSING GASKET FOR C15 PRE 04 AND ALSO 3406E. 1555619 1085891, Serial#: 1555619, Casting#: 1555619 Quantity2ConditionNewEngine ModelCaterpillar C15Part Number1555619 1085891 331398Stock Number331398 MLS Number9004804CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar C15 Acert Cylinder Head Gasket Kit, Part # C15013 $748.65 USD NEW C15 ACERT CYLINDER HEAD GASKET KIT. FITS MOST C15 ACERT APPLICATIONS. PLEASE CONFIRM WITH ENGINE SERIAL #. KID INCLUDES ALL GASKETS TO PERFORM HEAD GASKET REPLACEMENT.* DOES NOT... Quantity2ConditionNewEngine ModelCaterpillar C15Part NumberC15013Stock NumberC15013 MLS Number9004327CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Caterpillar Rod Bearing Set, Standard Size, Fits 3406E-C15 Non ACERT, Part # 9Y7735 370015 $128.43 USD NEW ROD BEARING SET. FITS MOST 3406E-C15 NON ACERT APPLICATIONS. STANDARD SIZE. CONFIRM WITH ENGINE SERIAL #., Serial#: 9Y7735G, Core Charge: 0, Casting#: 9Y7735G ConditionNewEngine ModelCaterpillar C15Part Number9Y7735 370015Stock Number9Y7735G MLS Number9004325CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar 3406E-C15 ACERT Main Bearing Set, Part # 3178766 370020 $282.13 USD 3406E-C15 ACERT MAIN BEARING SET. INCLUDES 7 (3178766 BRG SET) 1 (2351752 THRUST SET), Serial#: ..............., Casting#: ............... Quantity3ConditionNewEngine ModelCaterpillar C15Part Number3178766 370020Stock Number3178766/SET MLS Number9003812CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar C15 ACERT Rod Bearing Set, Part # 2243246 $184.55 USD C15 ACERT ROD BEARING SET. INCLUDES 6 ROD BEARING SETS. 2243246, Serial#: ..............., Casting#: ............... Quantity2ConditionNewEngine ModelCaterpillar C15Part Number2243246 370035 261-3450Stock Number2243246 / SET MLS Number9003811CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Caterpillar Main Engine Crankshaft Bearing, Part # 4W-5701 $49.99 USD Genuine Cat Main Engine Crankshaft Bearing p/n 4W-5701, 4W5701 Compatible Models for part number 4W-5701 GENERATOR WEG SR4B SR500 XQP500 SR4 SR5 TRUCK ENGINE 3408B 3406E 3406C 3406B C16... ConditionNewStock Number176733 MLS Number14242470CategoryEngine Miscellaneous Parts Last Updated5/14/2026 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info