8T-4821 13.5 mm ID Hardened Washer

Description

Cat bolts form a matched system with mating hardened washers and nuts to produce consistent, high clamping force.

Hardened	Yes
Surface Finish	Zinc Flake
Outside Diameter (OD) – 2	40 mm
Coating Finish Note	Caterpillar is changing many washers from zinc plating to a zinc flake coated finish. The new coating increases corrosion protection to 720 hours. While existing stock of the current finish is being used up, you may receive washers with either finish during the sell-through period.
Thickness – 3	3 mm
Inside Diameter (ID) – 1	13.5 mm
Outside Diameter	40 mm (1.575 in)
Inside Diameter	13.5 mm (0.531 in)
Material	HARDENED STEEL
Gasket Type	Flat Washer
Fits Bolt Size	M12 mm (1/2 in)
Coating	Zinc flake provides moderate to high corrosion protection and repeatable assembly performance through built-in lubrication. Salt spray resistance: 720 hours with no red rust. Coating color – black (M12 and smaller), gray (larger than M12).
Thickness	3 mm (0.118 in)

Generator Sets: 3516C
Track Loaders: 972, 973K, 994K, 995
Cold Planers: SE60 VT XW, SE50 VT
Compactors: CP12 GC, 816, 815, 814, CS12 GC, CS11, CP11 GC, 834K, CS12
Engines: C7
Excavators: 303C CR, 3126, 305C CR, 307.5, 305, 374, 305E2 CR, 349F L, 352, 340, 336, 350, 345 GC, 355, 395, 3101, 336 GC, 657G, 637E, SE60 V XW, 6020B, 352F, 3516E, 305 CR, 3516B, 349, 350MHPU, 416E, 434F2, 3512C, 320D3, 320D3 GC, 432, 416F2
Asphalt Pavers: AP655F, AP655F L
Skid Steer Loaders: 242D3, 272D3, 272D3 XE, 246D, 249D3, 262D, 236D, 232D, 3126B, 239D3, 232D3, 226D3, 299D3 XE, 236D3
Motor Graders: 349 GC, 16M3
Dozers: D8, D8T, D10T, D10N, D11T, D10R, D3K2 LGP, D6K2, D6T LGP, D7E, D5K2 XL, D8R, D1
Compact Track Loaders: 299D3
Mini Excavators: 308, 310, 306.5, 303.5E, 305.5E, 308.5, 306, 305.5E2, 303.5, 303.5D, 303.5C, 305E2, 307, 305.5 GC
Wheel Loaders: 966, 910, 966K, 966H, 980, 972G, 950H, 962G, 966F, 962L, 950G, 980H, 926M, 988K, 950, 834, 924K, 950L, 906K, 836
Off-Highway Trucks: 793, 789, 785, 7495, 794 AC, 785D, 740, 793D, 796 AC, 798 AC, 789D, 740B, 745C, 745, 740 GC

Machine Model	16M3, 226D3, 232D, 232D3, 236D, 236D3, 239D3, 242D3, 246D, 249D3, 262D, 272D3, 272D3 XE, 299D3, 299D3 XE, 303.5, 303.5C, 303.5D, 303.5E, 303C CR, 305, 305 CR, 305.5 GC, 305.5E, 305.5E2, 305C CR, 305E2, 305E2 CR, 306, 306.5, 307, 307.5, 308, 308.5, 310, 3101, 3126, 3126B, 320D3, 320D3 GC, 336, 336 GC, 340, 345 GC, 349, 349 GC, 349F L, 350, 350MHPU, 3512C, 3516B, 3516C, 3516E, 352, 352F, 355, 374, 395, 416E, 416F2, 432, 434F2, 6020B, 637E, 657G, 740, 740 GC, 740B, 745, 745C, 7495, 785, 785D, 789, 789D, 793, 793D, 794 AC, 796 AC, 798 AC, 814, 815, 816, 834, 834K, 836, 906K, 910, 924K, 926M, 950, 950G, 950H, 950L, 962G, 962L, 966, 966F, 966H, 966K, 972, 972G, 973K, 980, 980H, 988K, 994K, 995, AP655F, AP655F L, C7, CP11 GC, CP12 GC, CS11, CS12, CS12 GC, D1, D10N, D10R, D10T, D11T, D3K2 LGP, D5K2 XL, D6K2, D6T LGP, D7E, D8, D8R, D8T, SE50 VT, SE60 V XW, SE60 VT XW
Equipment Type	Excavators, Mini Excavators, Wheel Loaders, Track Loaders, Compact Track Loaders, Skid Steer Loaders, Dozers, Motor Graders, Off-Highway Trucks, Compactors, Asphalt Pavers, Cold Planers, Engines, Generator Sets
Part Source	Genuine OEM

Machine Model

Equipment Type

Part Source

Genuine OEM