Lewis Service Kit for LH4 Lever and Caliper

Lewis LH4 Service Kit – For LH4 Lever and Caliper

Restore Performance. Extend Lifespan.

Keep your Lewis LH4 brake system running at peak performance with the official LH4 Service Kit. Designed specifically for the LH4 lever and caliper, this comprehensive kit includes all the essential O-rings, seals, pistons, and small parts needed for a full refresh.

Perfect for routine maintenance or full system rebuilds, this kit ensures smooth lever feel, optimal braking power, and long-term reliability.

What’s Included:

• Caliper O-Rings:

  • O-ring between caliper clamshells (Caliper #14) × 1

  • Caliper piston O-ring (Caliper #5) × 2

  • Caliper piston O-ring (Caliper #4) × 2

• Lever Components:

  • Piston (Lever #15) × 1

  • Modified piston sleeve for LHT and LH4 × 1

  • Front lever piston O-ring (Lever #16) × 1

  • Rear lever piston O-ring (Lever #17) × 1

  • Circlip (Lever #19) × 1

  • Oil port O-ring (Lever #5) × 2

  • O-rings on sleeve × 2

  • Diaphragm (Lever #7) × 1

  • Return spring (Lever #14) × 1

Key Features:

• Full Rebuild Kit – All essential seals, pistons, and hardware for LH4 service

• Precise Fit – Engineered specifically for Lewis LH4 lever and caliper

• Restores Brake Performance – Helps eliminate leaks, spongy feel, and wear issues

• Premium Quality Components – Designed for durability and consistent performance

• Ideal for Home or Shop Use – Great for DIY maintenance or professional servicing

Keep your LH4 system feeling like new—this kit has everything you need.