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.

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Genuine Timken HM321210 Tapered Roller Bearing Cup | 6.75" OD Imperial Single Race
Genuine Timken HM321210 Tapered Roller Bearing Cup | 6.75" OD Imperial Single Race

Genuine Timken HM321210 Tapered Roller Bearing Cup | 6.75" OD Imperial Single Race

Regular price $189.27
Sale price $189.27 Regular price $421.79
Unit price
Genuine Cummins 4042573 Actuator Service Kit - Factory Sealed OEM - Made in USA
Genuine Cummins 4042573 Actuator Service Kit - Factory Sealed OEM - Made in USA

Genuine Cummins 4042573 Actuator Service Kit - Factory Sealed OEM - Made in USA

Regular price $459.86
Sale price $459.86 Regular price $893.00
Unit price
Cummins 3026426 Aftercooler Gasket | Genuine K19 K38 K50 OEM
Cummins 3026426 Aftercooler Gasket | Genuine K19 K38 K50 OEM

Genuine Cummins 3026426 Aftercooler Flange Gasket - For K19, K38, K50, QSK19 Engine

Regular price $2.09
Sale price $2.09 Regular price
Unit price
High-quality replacement Hub Cap Assembly designed to fit Stemco 343-4195
High-quality replacement Hub Cap Assembly designed to fit Stemco 343-4195

Aftermarket Hub Cap Kit for Stemco 343-4195 | 6-Bolt Pattern with Gasket & Plug

Regular price $19.98
Sale price $19.98 Regular price $50.49
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
Meritor # 2203F8872; Precision Shim .003 for Differential and Driveline service.
Meritor # 2203F8872; Precision Shim .003 for Differential and Driveline service.

Genuine Meritor 2203 Series Driveline Shims | Precision Differential Spacers | Multiple Thicknesses

Regular price $12.50
Sale price $12.50 Regular price $22.00
Unit price
Genuine Volvo 21422767 Belt Tensioner | Fits D11, D13 Engines | VNL, VHD, VNM Models
Genuine Volvo 21422767 Belt Tensioner | Fits D11, D13 Engines | VNL, VHD, VNM Models

OEM Supplier Belt Tensioner 21422767 | Fits Volvo D11, D13 Engines | VNL, VHD

Regular price $145.00
Sale price $145.00 Regular price $400.00
Unit price
Genuine Mack 7787-880011 HVAC Control Base Assembly | Fits CH, CL, CV, CX Models (2001-2006)
Genuine Mack 7787-880011 HVAC Control Base Assembly | Fits CH, CL, CV, CX Models (2001-2006)

Genuine Mack 7787-880011 HVAC Control Base Assembly | Fits CH, CL, CV, CX Models (2001-2006)

Regular price $199.00
Sale price $199.00 Regular price $325.00
Unit price
Mack 25110700 HVAC control base assembly for Keystone Dash, replacement part 1000149542.
Mack 25110700 HVAC control base assembly for Keystone Dash, replacement part 1000149542.

Mack HVAC Control Base Assembly 25110700 | Fits Keystone Dash, Replaces 1000149542

Regular price $49.95
Sale price $49.95 Regular price $249.99
Unit price
Spring Brake Control Valve Replacement for Sealco 110500 | Fits Semi-Trailers
Spring Brake Control Valve Replacement for Sealco 110500 | Fits Semi-Trailers

Spring Brake Control Valve Replacement for Sealco 110500 | Fits Semi-Trailers

Regular price $28.96
Sale price $28.96 Regular price $115.00
Unit price
Genuine Cummins 4921493 Fuel/Intake Pressure Sensor NOS | Fits M11, ISM, QSM11, N14 With OEM Package
Genuine Cummins 4921493 Fuel/Intake Pressure Sensor NOS | Fits M11, ISM, QSM11, N14 With OEM Package

Genuine Cummins 4921493 Fuel/Intake Pressure Sensor NOS | Fits M11, ISM, QSM11, N14

Regular price $109.95
Sale price $109.95 Regular price $364.44
Unit price
Genuine International 2587324C1 Coolant Level Sensor Switch Assembly | Replaces 2028178C1 / NOS
Genuine International 2587324C1 Coolant Level Sensor Switch Assembly | Replaces 2028178C1 / NOS

Genuine International 2587324C1 Coolant Level Sensor Switch Assembly | Replaces 2028178C1 / NOS

Regular price $39.95
Sale price $39.95 Regular price $90.34
Unit price
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