5J4991 Piston Seal

The 5J4991 piston seal is a hydraulic seal used in Caterpillar equipment. This is a new aftermarket part manufactured by CTP (Costex Tractor Parts).

Fitment

• Bulldozer: 5S, 6A, 6S, 7A, 7S, 824S
• Ripper: 977
• Track loader: 963, 977K
• Track-type tractor: D5B, D5H XL, D5R LGP, D6D, D6E, D6E SR, D6G, D6G SR, D6G2 LGP, D6G2 XL, D6H, D6H XL, D6H XR, D6N, D6N LGP, D6R, D6R II, D6R III, D6R STD, D6T, D6T LGP, D6T XL, D7G, D7G2, D7H, D7R, D7R II, D7R XR, D8N, D8R, D8R II, D8T, D9N
• Wheel dozer: 824C, 834B
• Wheel loader: 966C, 980, 988
• Wheel scraper: 631E, 631G, 633, 633D, 633E, 637E, 637G, 666
• Wheel tractor: 631C, 631E, 631G, 633C, 633E II, 637D, 637E, 637G

Specifications