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 Mack 301SQ 47E King Pin Set | Fits Mack FA532, FAW536, FAW537 Axles
Rig Force RF20550690 Charge Air Cooler (CAC) Hose | Fits Volvo D13 & Mack Engines | Replaces 20550690
Genuine Paccar 1876688 O-Ring Seal | Fits Paccar MX-13 Engines | MX13 Coolant Connection Seal
Genuine Mack 87GC132 Exhaust Manifold Lock Plates | Pack of 5 | 2-Valve Horizontal
Genuine Cummins Turbo-To-Manifold Gasket 3901356 | T3 Flange for 5.9L B-Series
Genuine Cummins 3687214 Grommet Seal | Fuel System Pass-Through Seal | Fits ISX12, ISX15, QSX15
Genuine Cummins 3682064 Hex Flange Head Cap Screw | Fits ISX15, QSX15, ISX12 | Engine Bolt
Genuine Cummins 5264570 Oil Drain Gasket | Turbocharger Return Seal | Fits ISX15, QSX15, ISM
Genuine Cummins 3027924 Connection Gasket (L10, M11, ISM)
Genuine Red Dot RD-5-6868-0 Block-Type A/C Expansion Valve – OEM Heavy-Duty HVAC
Genuine Freightliner Grakon A06-40578-000 Amber LED Roof Cab Clearance Marker Light
90-0012 Genuine Paccar 4" V-Band Exhaust Clamp (Kenworth / Peterbilt)
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