telfair Hydraulic Uni-Servo Brake Cylinders for 10" & 12" Trailers — Pair (Left + Right), Aluminum, Corrosion-Resistant

telfair’s pair of hydraulic uni-servo brake cylinders replaces two trailer brake actuators for 10"x2-1/4" and 12"x2 marine applications, delivering a direct-fit aluminum assembly with left and right link arms.

If you need a reliable replacement for both brakes on a small-to-medium marine trailer, these telfair uni-servo cylinders come as a two-kit set (left and right) engineered for common 10"x2-1/4" and 12"x2 hydraulic drum brake systems. Constructed from corrosion-resistant aluminum and finished in silver and black, the assemblies are built for trailer environments where saltwater exposure, vibration, and frequent loading demand durable components. The package includes one left and one right cylinder, each with its link arm, providing a convenient swap that restores brake actuation symmetry and performance.

How do these uni-servo cylinders fit my 10" and 12" trailer brakes?

The telfair cylinders are designed to match the mounting and actuation geometry used on many 10"x2-1/4" and 12"x2 marine hydraulic drum brakes. Each cylinder includes the appropriate link arm orientation for left and right installation so you can align return springs and shoes without fabrication.

• Direct replacement for standard 10"x2-1/4" and 12"x2 hydraulic drum brakes
• Left and right link arms supplied for correct orientation
• Aluminum construction minimizes corrosion on marine trailers
• Sold as two kits to replace both brake assemblies

What materials and finishes protect the cylinders from marine conditions?

The housings are aluminum, chosen for its strength-to-weight ratio and resistance to galvanic corrosion compared with plain steel. Critical components are finished in silver and black coatings to help resist surface corrosion and maintain reliable operation around saltwater and spray.

• Aluminum main body reduces rust risk and keeps weight down
• Protective finishes on exposed parts extend service life
• Factory-tested machining and assembly to meet durability expectations
• Seals and link arms designed to perform in wet environments

How difficult is installation and what comes in the package?

Installation is straightforward for someone familiar with trailer brake work: remove the drum, unbolt the old cylinder, swap in the new unit, and reattach the fluid line and link. The kit includes both sides so you can complete the job in one service session and re-bleed the system for balanced braking.

• Package includes: 1 left uni-servo cylinder with link arm and 1 right uni-servo cylinder with link arm
• Fits common backing plates and bolt patterns for specified brake sizes
• Re-bleeding brake lines is required after installation
• Professional installation recommended if unfamiliar with hydraulic brakes

Will these cylinders restore balanced braking and safety?

Replacing both left and right cylinders simultaneously helps restore equal actuation and reduces pull, vibration, or uneven pad wear caused by mismatched components. While they are manufactured to meet high quality standards, successful braking performance depends on correct fitting, fluid condition, and shoe/drum service.

• Dual-kit replacement promotes consistent left/right braking force
• Helps prevent uneven shoe wear and brake pull when installed correctly
• Works best when combined with fresh hydraulic fluid and drum inspection
• Not a substitute for complete brake system inspection or adjustment

Who is this for: This telfair pair is intended for marine trailer owners, fleet operators, and service technicians who need a dependable, corrosion-resistant replacement for both uni-servo cylinders on 10"x2-1/4" or 12"x2 hydraulic drum brake systems. Choose this kit if you want a matching left/right assembly set to restore balanced actuation and reliable stopping power after wear, damage, or corrosion has compromised the originals.