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.
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
