9X8257 - Washer
9X8257 - Washer
Couldn't load pickup availability
One New Aftermarket Replacement Hardened Flat Washer Fits Caterpillar (Fits CAT) Equipment
This hardened steel flat washer (OEM part number 9X8257 / 9X-8257) is a heavy-duty M16 / 5/8 in. bolt-size washer used across a wide range of Fits Caterpillar construction equipment. It features a zinc flake coating for corrosion protection and is manufactured from hardened, low-alloy steel. Applications include generator housing bracket bolts, main pump suction port pipe assemblies, and other fastening locations throughout Fits CAT equipment.
Specifications
- Washer Type: Flat, Hardened
- Material: Hardened Steel (Min. Yield Strength 1000 MPa) / Low Alloy Steel
- Fits Bolt Size: 5/8 in. (M16)
- Inside Diameter: 0.689 in. (17.5 mm)
- Outside Diameter: 1.181 in. (30.0 mm)
- Thickness: 0.138 in. (3.5 mm)
- Coating: Zinc Flake (lamellar zinc, salt spray rated 720 hours)
- Weight: 0.03 lbs.
Compatible Models
Fits Caterpillar Articulated Dump Trucks: 725, 730, 735, 740, D250E II, D300E II, D350E II, D400E II
Fits Caterpillar Dozers: D7H, D11R CD
Fits Caterpillar Soil Compactors: 815A
Fits Caterpillar Wheel Loaders: 980 XE
Fits Caterpillar Material Handlers: MH3260
Fits Caterpillar Excavators / Forest Machines: 330C FM
This washer fits additional Fits Caterpillar equipment. Verify your serial number and machine configuration before ordering.
Replaces Part Number(s):
9X8257, 9X-8257
New aftermarket replacement part - not remanufactured, not used.



