The 31-5111-HF is a fully assembled right-hand hydraulic brake backing plate designed for 7,000 lb trailer axles with 12" x 2" drum brakes. This complete brake backer includes the wheel cylinder, shoes, and all internal components pre-installed for fast, bolt-on replacement. Ideal for trailers equipped with surge brake systems, this backing plate offers reliable stopping power and long-term durability.

Features:

• Complete right-hand hydraulic brake assembly
• Pre-installed brake shoes, springs, and wheel cylinder
• 12" x 2" brake size – fits 7K-rated axles
• Designed for use with surge or hydraulic brake systems
• Bolt-on replacement for Dexter®, Lippert®, and other 7K axles

Specifications:

• Part Number: 31-5111-HF
• Axle Rating: 7,000 lbs
• Brake Size: 12" diameter x 2" width
• Side: Right-hand (passenger side)
• Mounting Flange: 5-bolt pattern
• Brake Type: Hydraulic (free-backing)
• Includes: Backing plate, shoes, springs, wheel cylinder (fully assembled)
• Application: Utility, dump, equipment, and livestock trailers

Fitment:

• Fits 7K trailer axles with 12" x 2" hydraulic drum brakes
• Common on trailers with Dexter® or compatible brake systems
• Use with corresponding LH brake: 31-5110-HF for full axle replacement