McFarlane MCSK172-1F Nose Strut Seal Kit

McFarlane MCSK172-1F – Cessna Nose Strut Seal Kit

The McFarlane MCSK172-1F Nose Strut Seal Kit is a FAA-PMA approved replacement kit engineered to address common leakage and servicing issues in Cessna nose landing gear struts.

Designed for many Cessna 150 through 337 aircraft models, this kit incorporates an improved double-edge (“X-style”) quad seal that resists twisting and leakage under operational loads. The upgraded design helps reduce recurring fluid loss and extends service intervals compared to traditional seal configurations.

The kit includes all necessary sealing components required for proper installation and long-term reliability, making it a preferred solution in general aviation maintenance environments.

Key Features & Benefits

• FAA-PMA approved replacement part

• Designed for Cessna 150 through 337 aircraft

• Double-edge (“X-style”) seal reduces twisting and leakage

• Helps solve recurring nose strut leak issues

• Extends service intervals

• Lock rings manufactured from stainless steel for improved corrosion resistance

• Comprehensive kit for proper overhaul

Kit Includes

• Quad ring (double-edge “X-style” seal)

• O-rings

• Back-up rings

• Scraper

• AN901-5A gasket

• Stainless steel lock rings