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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ABP N83 311291 TUBE - IN AND OUT - HEATER AND A/C SLEEPER R4290
16-20552-000 SHOCK-SACHS |327/527 | MT45 REAR FREIGHTLINER
Genuine Cummins 5411604 Air Exhaust Mixer | ISX & QSX Engine Emissions | OEM New
Mack Truck 22226310 Ignition Coil Genuine OEM
Mack Truck 4379-RD572721 Receiver/Dryer | Service Moisture Indicator
4384382 Genuine OEM Cummins Oxygen Sensor ISX/QSX 15 Liter
Volvo/MACK Truck 23171672 - Multi-Purpose Wiring Harness
4374294 Genuine Cummins Intake Manifold Cover ISX12G
Genuine Cummins 5415562 Oxygen Sensor
5270051 Genuine Cummins Water Transfer Tube
5398680 Genuine Cummins | TURBO OIL SUPPLY TUBE for ISC/ISL engines
Cummins Valve Tappet 3945866 | Tier 2 8.3 liter C engines - Set of 2
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