Piston Seals

Caterpillar® part numbers are used as a reference only. We do not imply that these parts are original equipment parts.

6 1/2 in Nominal Inner Diameter | Piston Seal

Specifically designed as piston seals, these u-seals are engineered to seal on their outside diameter. They offer extended, service life and maximum reliability in piston sealing.

92A Durometer | Urethane Material | 1 3/4 in Nominal Inner Diameter | 1/4 in Cross Section | U-Seal

Specifically designed as piston seals, these u-seals are engineered to seal on their outside diameter. They offer extended, service life and maximum reliability in piston sealing.

92A Durometer | Urethane Material | 5 in Nominal Inner Diameter | 3/8 in Cross Section | U-Seal

This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.

PTFE Material | 127 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

MCT, 215 X 192 X 16 Capped T Seal

This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.

PTFE Material | 207 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.

PTFE Material | 217 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.

PTFE Material | 272 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

MPK62 is a double-acting pneumatic piston seal designed to work in low axial height housings. The solid body molded in 70 durometer nitrile provides superior low-pressuring sealing.

70A Durometer | NBR Material | 65 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

Molded from filled PTFE and machined to close tolerances, these seals feature low friction and excellent wear characteristics. Nitrile rings are used for energizers.

70A Durometer | PTFE Material | 89.8 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities