Red Off-Road Service Truck

Genuine OEM Off-Road Service & Field Maintenance Truck Parts

Keep your field service units fully operational in the most demanding environments with our collection of Genuine OEM Off-Road Service & Field Maintenance Truck Parts. Specially curated for mechanics’ trucks, mobile lube units, and field repair rigs, this warehouse surplus and overstock factory inventory provides the heavy-duty components necessary to withstand the severe chassis vibration and debris of off-highway work.

Heavy-Duty Systems Sourced for Field Infrastructure & Fleet Uptime:

  • Visibility & Safety Signaling: Premium Whelen Century Series 23" Amber LED mini light bars, Better-Viz 6" oval dual-color amber/green strobe lights, ultra-thin 4.5" surface-mount warning lights, and waterproof 120W work light pods.
  • Pneumatics & Chassis Performance: Genuine Bendix DV-2 automatic reservoir drain valves, R-6 relay valves, E-3 basic foot brake valves, and PACCAR 12V DC engine brake solenoid valves (MX-13).
  • Powertrain Sensors & Electrical infrastructure: Authentic Cummins fuel/intake pressure sensors (M11, ISM, N14), CAT C7 fuel injector wiring harnesses, Mack accelerator pedal position sensors, and Cummins ECM calibration bench test harnesses.
  • Climate Control & Mechanical Assemblies: Premium Sanden and Mack/Volvo HVAC air conditioning compressors, Volvo preset thermostat freeze switches, Delbar heavy-duty stainless steel twisted mirror bracket tube mounts, and durable zinc-plated trailer coupling safety pins.

Whether you are maintaining a Mack or Volvo vocational chassis or servicing a specialized Terex or Heil service body, choosing original equipment manufacturer (OEM) overstock parts ensures your "shop on wheels" maintains its safety standards and structural integrity. Secure dealership-quality components at significant warehouse-direct savings.

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Better-Viz BV-21UT Ultra-Thin LED Strobe Light - Amber/Green 4.5
Better-Viz BV-21UT Ultra-Thin LED Strobe Light - Amber/Green 4.5
Two LED warning lights, one green and one amber, on a white background.
Two LED warning lights, one green and one amber, on a white background.

Better Viz 6" Oval LED Amber/Green Strobe Light | Grommet Mount Warning Signal | 10-30V DC

Regular price $29.63
Sale price $29.63 Regular price $69.00
Unit price
3945020 | J-Lock Load Brace Storage and Security System

3945020 | J-Lock Load Brace Storage and Security System

Regular price $65.00
Sale price $65.00 Regular price $0.00
Unit price
Better-Viz 3-Pin PL-3 to Weather-Tite Light Adapter | No-Cut Pigtail
Better-Viz 3-Pin PL-3 to Weather-Tite Light Adapter | No-Cut Pigtail

Better-Viz 3-Pin Trailer Light Adapter - PL-3 to Weather-Tite Plug - No-Cut Pigtail

Regular price $9.50
Sale price $9.50 Regular price $19.97
Unit price
Square LED work light with mounting bracket on a white background
Square LED work light with mounting bracket on a white background
Steering component with packaging and  a white background
Steering component with packaging and  a white background

Genuine Mack 2104-104631SX Steering Yoke (NOS OEM)

Regular price $38.37
Sale price $38.37 Regular price $42.63
Unit price
Cummins P/N | 4918802 ECM Calibration Bench Test Harness
Cummins P/N | 4918802 ECM Calibration Bench Test Harness

Cummins 4918802 ECM Calibration Bench Test Harness OEM New Surplus

Regular price $198.77
Sale price $198.77 Regular price $283.96
Unit price
TZ-401 Heavy Duty Back-up Alarm | 12V-24V Waterproof Reverse Siren
TZ-401 Heavy Duty Back-up Alarm | 12V-24V Waterproof Reverse Siren

TZ-401 Heavy Duty Back-up Alarm | 12V-24V Waterproof Reverse Siren

Regular price $19.34
Sale price $19.34 Regular price $34.95
Unit price
4" Aluminum Lever-Style Fuel Cap | Non-Locking Vented | Fits Peterbilt & International | New Aftermarket
4" Aluminum Lever-Style Fuel Cap | Non-Locking Vented | Fits Peterbilt & International | New Aftermarket

4" Aluminum Lever-Style Fuel Cap | Non-Locking Vented | Fits Peterbilt & International | New Aftermarket

Regular price $49.56
Sale price $49.56 Regular price $144.00
Unit price
Yellow Whelen lightbar with packaging and documentation on a white background
Yellow Whelen lightbar with packaging and documentation on a white background

Whelen Century Series 23" Amber LED Mini Light Bar - Stud Mount, (12VDC (MC23SA)

Regular price $398.23
Sale price $398.23 Regular price $665.98
Unit price
STAR by Grote 240SM-12V-A Amber Strobe Warning Beacon 9-16VDC

STAR by Grote 240SM-12V-A Amber Strobe Warning Beacon 9-16VDC

Regular price $96.86
Sale price $96.86 Regular price $0.00
Unit price
Metal valve or fitting on a white background
Metal valve or fitting on a white background

PACCAR 1739797PE Engine Brake Solenoid Valve - 12VDC for MX-13 Engines - Genuine OEM New Sealed - New Sealed

Regular price $139.62
Sale price $139.62 Regular price $213.99
Unit price
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