BB Overstock Parts Shop Genuine OEM Parts by Leading Truck Brands

Shop Genuine OEM Parts by Leading Truck Brands

Browse our extensive inventory of authentic overstock parts organized by the manufacturers you trust. At BB Overstock, we specialize in providing factory-original components from the industry's most reliable brands, including Cummins, Mack, Volvo, PACCAR, Bendix, and Whelen.

Whether you are looking for high-performance engine hardware, critical braking valves, or specialized safety lighting, shopping by brand ensures you get the exact engineering standards and fitment required for your specific vehicle. By sourcing genuine overstock, we offer the same premium quality found at the dealership but at a fraction of the cost—without the hassle of aftermarket compatibility issues. Select a brand below to view its full range of components, from internal engine gears to exterior lighting and cab accessories.

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Black and beige mechanical component on a white background
Black and beige mechanical component on a white background

Genuine Cummins 4089168 Solenoid Valve | OEM Engine Control Valve

Regular price $472.63
Sale price $472.63 Regular price $583.04
Unit price
CAT C7 Fuel Injector Wiring Harness | Caterpillar 222-5917 | Fits 3126B, 3126E Engines
CAT C7 Fuel Injector Wiring Harness | Caterpillar 222-5917 | Fits 3126B, 3126E Engines

Genuine Cummins 4088832 Temperature Sensor | Fits ISC, ISL, QSL Engines | OEM New Old Stock

Regular price $24.94
Sale price $24.94 Regular price $49.97
Unit price
Genuine Cummins 3683145 EGR Secure V-Band Clamp for ISX 15L Engines

Genuine Cummins 3683145 EGR Secure V-Band Clamp for ISX 15L Engines

Regular price $52.63
Sale price $52.63 Regular price $129.00
Unit price
Genuine Cummins 3085185 Temperature Sensor | OEM Engine Sensor

Genuine Cummins 3085185 Temperature Sensor | OEM Engine Sensor

Regular price $21.96
Sale price $21.96 Regular price $62.27
Unit price
Genuine Cummins 2863701 Seal O-Ring

Genuine Cummins 2863701 Seal O-Ring

Regular price $16.95
Sale price $16.95 Regular price $0.00
Unit price
BF9860 Baldwin Spin-On Fuel Filter KW-PETE 386-Cummins-QSX

BF9860 Baldwin Spin-On Fuel Filter KW-PETE 386-Cummins-QSX

Regular price $32.96
Sale price $32.96 Regular price $0.00
Unit price
Fuel Water Separator Filter Baldwin BF1378-SPS

Fuel Water Separator Filter Baldwin BF1378-SPS

Regular price $39.97
Sale price $39.97 Regular price $0.00
Unit price
Cummins Valve Tappet 3945866 | Tier 2 8.3 liter C engines - Set of 2

Cummins Valve Tappet 3945866 | Tier 2 8.3 liter C engines - Set of 2

Regular price $24.96
Sale price $24.96 Regular price $0.00
Unit price
Cummins P/N: "2892084" ECM Calibration Bench Test Harness

Cummins P/N: "2892084" ECM Calibration Bench Test Harness

Regular price $113.44
Sale price $113.44 Regular price $162.05
Unit price
Cummins P/N | 4918802 ECM Calibration Bench Test Harness

Cummins P/N | 4918802 ECM Calibration Bench Test Harness

Regular price $198.77
Sale price $198.77 Regular price $283.96
Unit price
Cummins P/N | 3687073 Fuel Pump Support Plate/Bracket

Cummins P/N | 3687073 Fuel Pump Support Plate/Bracket

Regular price $27.89
Sale price $27.89 Regular price $37.19
Unit price
Cummins P/N | 3163151 ECM Bench Calibration Base Test Harness

Cummins P/N | 3163151 ECM Bench Calibration Base Test Harness

Regular price $188.08
Sale price $188.08 Regular price $268.69
Unit price
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