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Hydrastar Marine Hydrastar 6K Axles, Plug - Play, 6 Lug Slip Over Triple Axle Trailer Disc Brake Kit (1/2")

Marine Hydrastar® 6K Axles, Plug - Play, 6 Lug Slip Over Triple Axle Trailer Disc Brake Kit (1/2") {#PPM6K-TR1SO}

SKU #PPM6K-TR1SO
by Hydrastar
Save 14% Save 14%
$2,199.00
$2,199.00 - $2,199.00
$2,199.00
$1,899.00
$1,899.00 - $1,899.00
$1,899.00

Complete triple axle disc brake conversion kit for 6K axles with 6-lug hubs. Includes the Hydrastar EOH actuator, disc brake assemblies, brake lines, and all hardware needed for a full conversion. Marine-rated with stainless steel components for saltwater environments.

Limited Warranty Included
2 YEAREOH Actuator
3 YEARDisc Brakes
6K
Axle Rating
TRIPLE
Axle
DISC
Brakes
DOT
Compliant
What You Get

In The Box & Sold Separately

Included
✓
(1) PP381-8067 — Marine Hydrastar® Plug & Play Electric Over Hydraulic (EOH) Trailer-Mounted Brake Actuator Kit (1600 PSI)
✓
(3) E303-6K1SO-A(FL) — Hydrastar® 6K Rated, Dacromet Coated Slip Over Single Axle Brake Kit (1/2 in. )
✓
(1) - Hydrastar® Hydraulic Tandem Axle Flexible Brake Line Kit – 24 ft., 3/16 in. Main, 3000psi hydraulic brake pressure
✓
(6) 303-E6R1SO 6K Axle Rated Integral Dacromet Coated Rotor
✓
(6) 303-E36C 3K/6K Axle Rated Dacromet Coated Caliper
✓
(3) 303-E6LBS 6K Axle Rated Dacromet Coated Bracket LH
✓
(3) 303-E6RBS 6K Axle Rated Dacromet Coated Bracket RH
Sold Separately
–
DOT 3 or DOT 4 Brake Fluid
–
Tools for installation
Questions about fitment?

Feel free to reach out to us or start a live chat in the bottom right corner for assistance.

Additional Details

Specifications & Compliance

•
Durable, sealed, fully enclosed extruded anodized aluminum housing case to easily withstand the environmental and road demands (not cast or plastic).
•
2 YEAR LIMITED WARRANTY from date of purchase.
•
Complies with CFR-393 Federal Braking Requirements and meets all Department of Transportation (D.O.T.) regulations.
•
Designed for Disc Brakes with reliable 12 V DC operation and solid-state electronics.
•
Plug & Play Model, No Wiring Neccessary
•
Integrated Cam (Compatible with all Factory Controllers)
•
Includes Prewired Harness and Battery Back Up Battery Kit
•
Required use of D.O.T. 3 or 4 Brake Fluid. (Not included.)
•
Compatible with any trailer configuration with 1-3 axles.
•
Corrosion-resistant Dacromet Coated Rotor and Bracket for Industry Standard trusted performance.
•
Premium, corrosion-resistant Dacromet Coated Caliper construction for reliable performance.
•
1/2" in. wheel studs
•
5-Bolt Brake Flange
•
Note: Axle Brackets used are open, do not have to remove hubs to install bracket.
•
24' Main Line fits up to 80" Wide Frame Axles
•
(Includes All the Hoses and Brake Line Fittings)
•
DOT Rubber Flexible Brake Lines, No specialized Brake Line tool needed to install, easy to maneuverer
•
Meets SAE J1650 Standards (0.028 in.)
•
This KIT also includes Stainless Brake Flange Hardware Kits for all axles.
Common Questions

Before You Buy

What PSI actuator is included?+
The 1,600 PSI GEN 8 actuator is included. This is the correct pressure for both disc and drum brake applications.
Do I need anything else to complete the install?+
You will need DOT 3 brake fluid (not included). Basic hand tools and a way to mount the actuator to your trailer tongue.
What is the difference between integral and slip over?+
Integral kits replace your entire hub and rotor as one piece. Slip over kits mount the rotor over your existing hub — faster install, no hub removal needed.
2024–2026 GM Truck & SUV Owners

Dashboard showing “Service Trailer Brakes”? Brakes disabled?

Affects Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Colorado, Canyon & Hummer EV with integrated trailer brake controller.

That’s a known GM compatibility issue across the 2024–2026 lineup. Hydrastar has the fix — the GM Diode Module (#381-7074) is a plug-and-play inline solution.

New Ford Truck Owners

Connectivity issues before or after the dealer flash? Brakes dropping in and out?

Affects new Ford trucks when switching from electric mode to EOH mode.

Our Hydrastar Controller Adapter Module (#381-7073) has been very successful resolving this for Ford owners. Note: this is not a Hydrastar issue — just a Hydrastar part that helps.

Need Help Choosing?
Our team has helped thousands of trailer owners find the right setup.
Fastest response? Use the chat bubble in the bottom-right corner ↘
or call (812) 655-4544 · Mon–Fri, 8am–4:30pm ET