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.
Shop by Brand
Filters
CAT P/N | 8F-8882: 66.27mm Inner Diameter Seal O Ring
CAT P/N | 3H-0107: 3.53 x 21.82mm 75A NBR O-Ring (2 Pack)
CAT P/N | 3D-4245: 2.62 x 25.07mm 75A NBR O-Ring
CAT P/N | 3D-4245: 2.62 x 25.07mm 75A NBR O-Ring (3 Pack)
CAT P/N | 7F-8607: 18.72mm Inside Dia Seal-O-Ring Caterpillar 7F8607 (2Pack
CAT P/N | 6F-6673: Rubber O Ring Seal Caterpillar 6F6673 (2-Pack)
CAT 8F-3469 Seal- O-Ring Caterpillar 8F3469 (2-Pack)
CAT 8F-6711: 56.74mm Inside Diameter Seal-O-Ring Caterpillar 8F6711
CAT 7F-8267: 47.22mm Inner Diameter Seal-O-Ring Caterpillar 7F8267
CAT 4M-8303 Seal-O-Ring Caterpillar 4M8303 (2-pack)
CAT 4D-3107 Seal-O-Ring Caterpillar 4D3107 (3-Pack)
CAT 4M-8303 Seal-O-Ring Caterpillar 4M8303
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old