At a Glance

> Hydraulic System: Bleed the brake system after installation to remove air and restore proper brake pressure.
> Brake Type: Confirm this is being used with disc brakes, not drum brakes.
> Actuator Housing: Inspect the outer housing, mounting points, rollers, and sliding surfaces before installing a new inner member.
> Check Brake Fluid: Contaminated, low, or leaking brake fluid can point to a larger hydraulic issue.
> Check Reverse Lockout: Confirm the reverse lockout circuit is wired and functioning before assuming the actuator is the only problem.
Brand: UFP
SKU: 34044U

Before You Order

Match the part number, measurements and connection points that apply to your trailer.

Hub Face	Measure hub face to hub face.
Spring Center	Measure mounting centers and confirm perch configuration.
Capacity	Match the required axle rating.
Brakes	Confirm brake type and flange configuration.

Product Details

Hydraulic Surge Brake Actuator Inner Member

UFP A-60 / A-70 Inner Member Trailer Disc Brake Actuator – Tandem Axle – 7,500 lb – 2" Ball

Replacement inner member for UFP A-60 and A-70 surge brake actuator systems configured for tandem axle hydraulic disc brake applications. Built as the internal actuator slide assembly for restoring braking function inside a compatible actuator housing.

Part Number: 34044U 7,500 lb Rating 2" Ball / Tandem Disc Brake

Key Measurements & Specs

Specification	Detail
Part Number / SKU	34044U
Brand / Application	UFP / Dexter-style A-60 and A-70 actuator application
Product Type	Hydraulic surge brake actuator inner member / inner slide assembly
Rated Capacity	7,500 lb
Coupler Ball Size	2" ball
Brake Type	Hydraulic disc brake actuator application
Quantity Included	1 inner actuator member assembly

Fitment / Application

Category	Details
Trailer System	Surge brake actuator system for boat, utility, and trailer hydraulic brake applications where the existing actuator matches this configuration
Primary Fit	UFP A-60 / A-70 actuator systems configured for hydraulic disc brakes
Axle / Brake Setup	Tandem axle / four-wheel disc brake setup
Fitment Method	Confirm actuator model, 2" ball coupler configuration, disc brake setup, and tandem axle brake layout before ordering
Important Note	Not the same application as single-axle disc brake, drum brake, or non-matching actuator inner members

Top Features

Feature	Buyer Benefit
Disc Brake Configuration	Designed for hydraulic disc brake actuator systems rather than drum brake applications
Tandem Axle Application	Supports trailers using braking on two axles / four wheels
Reverse Lockout	Helps prevent brake engagement while backing when wired and operating correctly
Inner Slide Assembly	Replaces the internal actuator member without replacing the entire outer actuator housing when the housing is serviceable

Overview

The 34044U UFP A-60 / A-70 inner member is a replacement hydraulic surge brake actuator slide assembly for tandem axle trailers with disc brakes. It is used when the internal actuator assembly, master cylinder function, reverse lockout components, or sliding actuator mechanism need replacement while the outer actuator housing remains compatible and serviceable.

R&P Service Insight

Inner actuator members are commonly replaced when hydraulic braking performance drops, the actuator no longer slides or returns correctly, or internal corrosion and wear affect braking response.

Hydraulic System: Bleed the brake system after installation to remove air and restore proper brake pressure.
Brake Type: Confirm this is being used with disc brakes, not drum brakes.
Actuator Housing: Inspect the outer housing, mounting points, rollers, and sliding surfaces before installing a new inner member.

R&P Knowledge Hub

Compatibility: Fits UFP A-60 and A-70 surge brake actuator applications when the trailer is configured for tandem axle hydraulic disc brakes and the existing actuator matches this style.

Vehicle / System Fit: Designed for trailer-mounted hydraulic surge brake systems using a 2" ball coupler and four-wheel disc brake setup.

Installation Notes: Installation requires careful actuator disassembly, hydraulic line reconnection, reverse lockout wiring check, and full brake bleeding after the replacement is installed.

Performance Insight: The inner member is the working slide assembly inside the actuator. It converts trailer compression force during braking into hydraulic pressure at the master cylinder.

Brand & Fitment Note

Selling Brand / Application Reference: UFP / Dexter-style A-60 and A-70 actuator application.

Application Reference: UFP A-60 and A-70 names are used to identify compatible actuator systems and should be matched against the actuator currently installed on the trailer.

What This Means: This listing is for one replacement inner actuator member assembly for the listed actuator application. It should not be ordered by part number alone if the actuator model, brake type, or axle configuration is uncertain.

Before Ordering: Verify the actuator model, brake type, tandem axle setup, ball size, hydraulic connection, reverse lockout wiring, and included components before installation.

R&P Repair Insight

Before replacing the inner member, check whether the failure is isolated to the actuator or if the trailer also has brake line, caliper, rotor, hose, or wiring issues. A new inner member will not correct problems elsewhere in the hydraulic brake system.

Check Brake Fluid: Contaminated, low, or leaking brake fluid can point to a larger hydraulic issue.
Check Reverse Lockout: Confirm the reverse lockout circuit is wired and functioning before assuming the actuator is the only problem.
Check Disc Brake Hardware: Inspect calipers, pads, rotors, flexible hoses, and steel brake lines during installation.

Features

UFP A-60 / A-70 Application

Made for compatible UFP A-60 and A-70 style surge brake actuator systems when the trailer setup matches the listed disc brake configuration.

Tandem Axle Disc Brake Setup

Configured for trailers using hydraulic disc brakes on two axles / four wheels.

7,500 lb Capacity Rating

Rated for compatible actuator applications up to 7,500 lb when installed and used within the correct trailer system.

Integrated Reverse Lockout

Includes reverse lockout functionality for backing the trailer without unwanted brake engagement when properly wired and operating correctly.

Master Cylinder Function

Restores the internal hydraulic actuation function inside a compatible surge brake actuator housing.

Service Replacement Assembly

Allows replacement of the internal actuator slide member without replacing the full actuator housing when the existing outer housing is still in good condition.

Included Components

Quantity	Item
1	UFP A-60 / A-70 inner actuator member assembly for tandem axle disc brake application
Included as part of assembly	Master cylinder / hydraulic actuator components
Included as part of assembly	Electrical reverse lockout solenoid / backup lockout function
Included as part of assembly	Breakaway cable and inner slide actuator components

Installation Video

Important Fitment Note: Verify actuator model, hydraulic brake type, axle configuration, coupler ball size, reverse lockout wiring, brake line condition, and included components before installation. UFP A-60 / A-70 references describe application fitment only and should be matched to the actuator currently installed on the trailer.

View More Brake Actuator Parts

34044U UFP A-60 A-70 inner member disc brake actuator tandem axle 7500 lb 2 inch ball hydraulic surge brake actuator inner slide replacement reverse lockout solenoid master cylinder trailer brake actuator four wheel disc brake replacement UFP Dexter style actuator repair part

UFP A-60 / A-70 Inner Member Trailer Disc Brake Actuator – Tandem Axle – 7,500 lb – 2" Ball (34044U)