Genuine OEM Mack Truck Parts & Components

Genuine OEM Mack Truck Parts & Components

Keep your commercial fleet "Built Like A Mack Truck" and eliminate costly highway down-time with our premium collection of Genuine OEM Mack Truck Parts & Components. Curated specifically for heavy-duty fleet operations, independent owner-operators, and vocational mechanics, this warehouse surplus and overstock factory-original inventory preserves your rig's legendary powertrain and chassis tolerances.

Factory-Original Components Sourced for Maximum Rigidity & Uptime:

  • Steering, Suspension & Powertrain: Genuine Mack front steer axle king pin sets (fitting FA532, FAW536, and FAW537 axles), high-tolerance steering yokes, and premium Stemco Voyager drive axle front wheel seals with axle rings.
  • Chassis Dynamics & Air Brakes: Authentic Bendix DV-2 automatic reservoir drain valves, R-6 relay valves, E-3 basic foot brake valves, and heavy-duty Mack exhaust manifold lock plates.
  • Cabin Comfort, Switches & HVAC: Mack HVAC control base assemblies for Keystone or modern dash layouts (fitting classic CH, CL, CV, and CX models), Sanden SD7H15 A/C compressors, and genuine Volvo/Mack 3-speed rotary blower fan switches.
  • Engine Electronics & Calibration: Genuine Cummins engine-saving wiring harnesses for ISX platforms, and specialized Cummins ECM calibration bench test harnesses alongside genuine Detroit Diesel thermostats.

When hauling heavy-duty cargo or operating in brutal vocational environments, aftermarket lookalikes can trigger catastrophic cascading failures. By selecting original equipment manufacturer (OEM) overstock assets over cheap retail substitutes, you secure strict DOT compliance and flawless installation. Bypass steep dealership markups with our warehouse-direct savings.

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5MD513 Heater Duct Tube Mack OEM CH600

5MD513 Heater Duct Tube Mack OEM CH600

Regular price $56.57
Sale price $56.57 Regular price $0.00
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41MR21123M Harness for OEM Mack Truck

41MR21123M Harness for OEM Mack Truck

Regular price $62.37
Sale price $62.37 Regular price $0.00
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1MR4321M2 Genuine Mack Light Switch NOS Replacement

1MR4321M2 Genuine Mack Light Switch NOS Replacement

Regular price $29.38
Sale price $29.38 Regular price $0.00
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20QE2325 NOS GENUINE MACK OEM CHECK VALVE

20QE2325 NOS GENUINE MACK OEM CHECK VALVE

Regular price $36.38
Sale price $36.38 Regular price $0.00
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Genuine Mack 4-Position Speed Control Switch
Genuine Mack 4-Position Speed Control Switch

Mack Genuine Speed Control Switch 4 Pos 4379-RD546941 | OEM New Old Stock

Regular price $23.74
Sale price $23.74 Regular price $29.67
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20QE1282 150 PSI ST-3 Safety Valve Genuine Mack

20QE1282 150 PSI ST-3 Safety Valve Genuine Mack

Regular price $19.86
Sale price $19.86 Regular price $0.00
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42QE3159P6 Genuine Mack Bulldog Hump Hose

42QE3159P6 Genuine Mack Bulldog Hump Hose

Regular price $38.19
Sale price $38.19 Regular price $0.00
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Mack Genuine Ball Joint 671AM1 | 3/4"-16 Thread | OEM New Old Stock
Mack Genuine Ball Joint 671AM1 | 3/4"-16 Thread | OEM New Old Stock

Mack Genuine Ball Joint 671AM1 | 3/4"-16 Thread | OEM New Old Stock

Regular price $56.56
Sale price $56.56 Regular price $73.50
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MACK 10QX45AM RIGHT OEM WINDOW REGULATOR 25017114

MACK 10QX45AM RIGHT OEM WINDOW REGULATOR 25017114

Regular price $86.93
Sale price $86.93 Regular price $102.27
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Bell Housing Bracket Right Hand Mack 158GB4608 Engine Mount

Bell Housing Bracket Right Hand Mack 158GB4608 Engine Mount

Regular price $94.96
Sale price $94.96 Regular price $0.00
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7/8"-14 x 7 (PT) SAE Hex Head Yellow Zinc Plated Grade 8 Fine Thread Bolt
7/8"-14 x 7 (PT) SAE Hex Head Yellow Zinc Plated Grade 8 Fine Thread Bolt

Nucor Grade 8 Hex Bolt - 7/8"-14 x 7" (Fine Thread, Yellow Zinc)

Regular price $21.29
Sale price $21.29 Regular price $32.00
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Genuine MACKx 21568414 Accessory-Belt Tensioner Kit

Genuine MACKx 21568414 Accessory-Belt Tensioner Kit

Regular price $219.68
Sale price $219.68 Regular price $0.00
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