2K6830 Backup Ring Fits Caterpillar Models

One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Construction Equipment

This backup ring is a hydraulic sealing component used in Caterpillar equipment to support and protect primary O-ring seals under high-pressure conditions, preventing extrusion and extending seal service life. It is used across a wide range of Caterpillar machine types including motor graders, backhoe loaders, articulated dump trucks, asphalt pavers, excavators, and bulldozers.

Specifications

• Weight: 0.1 lbs

Compatible Models

Caterpillar Motor Graders: 10, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 120B, 120H, 120H ES, 120H NA, 120K, 120M, 130G, 135H, 135H NA, 140B, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 143H, 14E, 14G, 14H, 14H NA, 14M, 16, 160G, 160H, 160H ES, 160H NA, 160K, 160M, 163H, 163H NA, 16G, 16H, 16H NA, 16M, 24H, 24M

Caterpillar Backhoe Loaders: 416, 416B, 416C, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424D, 426B, 426C, 428B, 428C, 428D, 428E, 428F, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 434F, 436, 436C, 438B, 438C, 438D, 442D, 442E, 444E, 444F, 446, 446B, 446D, 450E, 450F

Caterpillar Excavators: 322B L, 322C FM, 324D FM LL, 325B L, 325D FM, 325D FM LL, 330B L, 330C, 330C L, 330D FM, 330D L, 345B II, 345B L, 345C L, 350, 350 L, 365B, 365C L, 375, 375 L, 385B, 385C L, 568 FM LL

Caterpillar Articulated Dump Trucks: D250E, D300E

Caterpillar Asphalt Pavers: AP-200B

Caterpillar Bulldozers: D3, D3B, D3C, D4B, D4C, D4D, D4E, D4H, D5B, D5C, D5E, D5H, D5RLGP, D6D, D6E, D6FSR, D6G, D6G2XL, D6H, D6K, D6N, D6T, D7E, D7H, D8K, D8L, D8R, D8T, D9, D10, D11N

Replaces Part Number(s):

2K6830, 2K-6830

Aftermarket Interchange Numbers

2J7537, 869329

New aftermarket replacement part - not remanufactured, not used.