BB Overstock Commercial Vehicle Parts

Commercial Vehicle Parts – OEM Surplus & Overstock

Dealer markups and long lead times shouldn't get in the way of keeping your trucks running. BB Overstock Parts stocks genuine surplus and overstock OEM parts for commercial trucks — semi trucks, vocational trucks, and heavy-duty fleet vehicles — from brands like Freightliner, Cummins, Volvo, Mack, International/Navistar, Kenworth, and Peterbilt.

Every part in our commercial vehicle inventory is genuine OEM or verified surplus — not remanufactured, not aftermarket unless clearly marked. Whether you're a fleet maintenance manager, an independent repair shop, or a truck owner working on your own rig, you'll find the parts you need here at prices that make sense.

Inventory is limited and constantly changing. When a part is gone, it may not come back. If you need help with a part number, cross-reference, or fitment question before ordering, reach out — our team knows these parts.

Shop by Brand

Filters

Online Exclusive

SALE UP TO 25% OFF

Shop The Sale
1111-60 Air Tank Drain Valve With 60" Cable
1111-60 Air Tank Drain Valve With 60" Cable

1111-60 Air Tank Drain 1/4 inch Valve With 60" Cable New

Regular price $11.96
Sale price $11.96 Regular price $15.46
Unit price
165583C1 Genuine OEM International Truck Parts Alarm-Stat Switch

165583C1 Genuine OEM International Truck Parts Alarm-Stat Switch

Regular price $124.63
Sale price $124.63 Regular price $0.00
Unit price
Genuine Allison 29513429 Lever Selector | 6-Speed RHRF with ECU Mount | OEM New Old Stock

Genuine Allison 29513429 Lever Selector | 6-Speed RHRF with ECU Mount | OEM New Old Stock

Regular price $2,499.73
Sale price $2,499.73 Regular price $3,124.66
Unit price
108-8626-012 Wastebuilt -for Heil Switch Bank 1 /Green Plug

108-8626-012 Wastebuilt -for Heil Switch Bank 1 /Green Plug

Regular price $292.68
Sale price $292.68 Regular price $0.00
Unit price
P/N: Q21-6056 Paccar HVAC A/C-HEAT Control Module Panel

P/N: Q21-6056 Paccar HVAC A/C-HEAT Control Module Panel

Regular price $496.53
Sale price $496.53 Regular price $0.00
Unit price
4921477 Cummins Temperature P.R.S. Sensor M11 Module

4921477 Cummins Temperature P.R.S. Sensor M11 Module

Regular price $159.63
Sale price $159.63 Regular price $0.00
Unit price
5683521 Genuine Cummins Onan Serp Belt-Tensioner Pulley Old 3973819

5683521 Genuine Cummins Onan Serp Belt-Tensioner Pulley Old 3973819

Regular price $178.23
Sale price $178.23 Regular price $0.00
Unit price
1685132C92 Genuine OEM International 195/deg. NC Fan Clutch Switch

1685132C92 Genuine OEM International 195/deg. NC Fan Clutch Switch

Regular price $46.82
Sale price $46.82 Regular price $0.00
Unit price
P/N: 3071354 Cummins Plunger Switch for Non Certified 14 liter/N14 engines

P/N: 3071354 Cummins Plunger Switch for Non Certified 14 liter/N14 engines

Regular price $88.62
Sale price $88.62 Regular price $0.00
Unit price
P/N: 1024612 JACOBS V.S. JAKE BRAKE SOLENOID OEM (12VDC) S/L SCREW

P/N: 1024612 JACOBS V.S. JAKE BRAKE SOLENOID OEM (12VDC) S/L SCREW

Regular price $194.68
Sale price $194.68 Regular price $0.00
Unit price
P/N: 6305290 Cummins/Onan Thermostat for Tier 2 8.3 liter ISC/ISL engines

P/N: 6305290 Cummins/Onan Thermostat for Tier 2 8.3 liter ISC/ISL engines

Regular price $82.36
Sale price $82.36 Regular price $0.00
Unit price
P/N: 05149423 Genuine Detroit Diesel (180 deg) Thermostat

P/N: 05149423 Genuine Detroit Diesel (180 deg) Thermostat

Regular price $58.76
Sale price $58.76 Regular price $0.00
Unit price
« 1 42 43 44 45 46 50 »
Sort by
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old