2159988 Hydraulic Cylinder Seal Kit for Caterpillar Equipment

Seal kit 2159988 is a hydraulic cylinder seal kit used with Caterpillar engine-machine and excavator equipment, including the C-9, 330C, 330C L, and 330C LN models. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The kit is identified by Caterpillar part number 2159988 and contains sealing rings, O-rings, a buffer seal, a pressed-in wiper, a seal, and a piston seal. The listed contents and quantities are provided below.

Fitment

• Caterpillar C-9
• Caterpillar 330C
• Caterpillar 330C L
• Caterpillar 330C LN

Equipment application: Caterpillar engine-machine equipment and Caterpillar excavators.

Cross-reference numbers

• 2159988 — Caterpillar part number
• 2159988 — aftermarket interchange number

Kit contents

• 1 × 087-5550 — ring
• 1 × 095-1635 — O-ring
• 1 × 128-9266 — buffer seal
• 1 × 165-9291 — pressed-in wiper
• 1 × 170-9865 — seal
• 2 × 185-0230 — ring
• 1 × 185-0231 — ring
• 1 × 6I-6785 — O-ring
• 1 × 7Y-4941 — ring
• 1 × 9X-3604 — piston seal

The stated quantities indicate the number of each listed component supplied in the 2159988 seal kit. Component descriptions are retained according to the supplied part information.

Specifications