Construction Equipment Parts – Surplus & Overstock OEM
Finding genuine OEM parts for construction equipment shouldn't require a dealership appointment or a three-week wait. BB Overstock Parts stocks surplus, overstock, and new-old-stock (NOS) OEM parts for CAT, JCB, Doosan, John Deere, Hitachi, and other major construction equipment brands — ready to ship, at prices well below dealer cost.
Our construction equipment inventory covers excavators, backhoe loaders, dozers, skid steers, asphalt pavers, and more. Every part in stock is genuine OEM or verified-quality surplus — not knock-off aftermarket. When you order here, you get the part that was designed for the machine.
Quantities are limited by nature. Surplus and overstock inventory doesn't restock on a schedule. If you see it, it's available now. If you need help confirming a part number or fitment before ordering, contact us — we're happy to help.
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Genuine JCB Hub Seal Cover Plate 458/20403 | Fits 3CX, 3DX, 4CX, 214 | OEM Service Part
Fafnir 207KDD Ball Bearing | 35mm x 72mm x 17mm | Double Shielded OEM New Old Stock
Genuine Cummins 3694910 O-Ring Seal | Fits ISX12, QSX12 (EPA17) Engines | OEM New
Genuine Cummins 3697435 Multi-Purpose O-Ring Seal | Fits X12, ISG11, ISG12 | OEM New Old Stock
Genuine Cummins 4985660 Rectangular Seal Ring | Fits ISX15, QSX15, X15 | OEM New Old Stock
Genuine Cummins 3803682 Fuel Injector Wiring Harness Kit | Fits N14, M11, L10 CELECT
Genuine Cummins 2894827 Fuel Injector Supply Connector | ISX12, QSX15, X15 | EPA13 OEM
John Deere Genuine Intercooler Air Hose R164193 | 3" ID x 5.5" Length | Fits 8100-8520, 644H/J
Doosan Genuine Upper Pin 120501-01131 | Fits Excavator Linkage & Boom | OEM New Old Stock
CAT C7 Fuel Injector Wiring Harness | Caterpillar 222-5917 | Fits 3126B, 3126E Engines
Doosan Genuine Spacer 4110-1416 | Heavy Equipment OEM New Old Stock
Doosan Genuine Spacer 114-00250A | Heavy Equipment OEM New Old Stock
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