EPBX - Electronic Parking Braking Systems
Integrated electronic parking brake technology engineered for select ECGS and Dynatrac axles. Full hydraulic braking and electronic parking brake capability in one rear caliper.
Coming to select ECGS and Dynatrac axle assemblies, with retrofit kits planned for compatible existing axles. The standalone electronic parking brake controller is designed for use across a range of vehicle applications.
Electronic parking brake actuators integrated directly into the rear calipers. No traditional parking brake cables.
Caliper piston sizing designed to match the hydraulic fluid requirements of factory braking systems on many Jeeps, SUVs, and midsize trucks, improving pedal feel while reducing the need for master-cylinder upgrades on compatible applications.
Designed to bolt onto select previously purchased ECGS and Dynatrac axle assemblies. Check with your dealer for compatibility.
EPBX is on display alongside our KP540 front axle steering technology at SEMA 2026 in Las Vegas. Together, these developments showcase new approaches to axle strength, braking and serviceability.
Traditional 1-ton axle swaps can introduce larger calipers that require more hydraulic fluid than the factory system was designed to deliver, contributing to excessive pedal travel and a soft or spongy pedal feel.
EPBX takes a different approach. The rear calipers are sized to work with hydraulic systems commonly found on Jeeps, SUVs, and light-duty pickups, helping maintain confident pedal feel and reducing the need for master cylinder or booster upgrades on compatible applications. But this is no lightweight brake package: the OE-derived calipers and 14-inch rotors are based on braking hardware used on heavy electric trucks such as the roughly 9,000-pound GMC Hummer EV. The same rear caliper also incorporates the electronic parking brake.
No separate internal drum-style parking brake, no additional floor-mounted parking brake pedal, and no mechanical parking brake cable to route from front to rear. EPBX uses the rear caliper for regular hydraulic braking and electronically actuated parking.
Add the optional MODULE-EBCU control module and vehicle-specific wiring harness to enable the parking brake. The single harness is built to the length required for the supported vehicle, simplifying routing through the frame.
Two Functions.
The electronic parking brake is integrated into the hydraulic rear caliper rather than handled by a separate parking brake mechanism.
The electronic actuator can be replaced independently of the caliper, helping reduce replacement costs when only the actuator requires service.
Standalone electronic parking brake control engineered for reliable operation and straightforward integration with compatible ECGS and Dynatrac axle applications.
Simple Operation.
The EPBX control module operates the electronic parking brake actuators integrated into the rear calipers using a standalone automotive-grade control system.
An LED-illuminated switch provides convenient parking brake engagement and release, along with a maintenance service mode.
Part number: MODULE-EBCU
Application-specific plug-and-play harnesses are designed to minimize wire splicing and simplify installation. Flexible electrical wiring can be routed through the frame more easily than a full-length mechanical parking brake cable.
Illuminated switch control provides parking brake engagement, release and maintenance service-mode operation.
High-current automotive-grade electronics are engineered for repeatable actuator operation, consistent clamping force and reliable engagement.
Automotive connector systems are engineered for secure fitment, environmental protection and long-term electrical reliability.
Epoxy-encapsulated circuitry helps manage heat and protect against moisture, vibration and corrosion.
The controller can be disconnected independently of the vehicle wiring harness, simplifying replacement and possible future upgrades.
EPBX combines a 14-inch rear rotor with an OE-derived caliper and a rotor designed around the 8x6.5-inch bolt pattern. The package is engineered for strong braking performance without unnecessary rotor mass.
- 14-Inch Rotor Package: Designed as a lighter-weight alternative to traditional 1-ton rear brake arrangements using comparable 13-inch rotors.
- Purposeful Rotor Design: A shallower rotor hat eliminates the need for an internal mechanical parking brake and helps reduce rotor mass.
- OE-Derived Components: Production-based calipers and rotors simplify replacement-part sourcing. Replacement rotors require specified center-bore machining.
- Integrated EPB Caliper: Hydraulic braking and electronic parking actuation are combined in a single caliper assembly.
Comparative weight and stopping-performance claims will be finalized after representative testing.
14-Inch Rotor Package
OE-derived rotor and integrated rear caliper designed for heavy-duty axle applications.
Integrated Mounting
Custom axle-specific bracketry integrates the caliper and actuator without separate drum-style parking hardware.
EPBX positions the caliper higher and farther from trail obstacles than typical low-mounted 1-ton rear brake arrangements. Elevated clocking is also designed with brake bleeding access in mind.
The caliper and actuator package is designed not to extend farther inward than the conventional 1-ton brake arrangement it replaces, helping preserve room for suspension links, brackets and other axle-mounted components.
17-Inch Wheel Compatibility
Designed for many off-road 17-inch wheels with a minimum 16.125-inch inside wheel barrel diameter. Verify actual wheel clearance.
Compact Inboard Packaging
Careful caliper and actuator placement helps preserve space for suspension and axle bracket hardware.
High-Mounted Caliper
Raised caliper clocking helps protect against rocks and trail obstacles.
- Bolt-On Retrofit: On compatible ECGS and Dynatrac axles, the caliper bracket attaches at existing backing-plate mounting points without modifying the axle flange.
- Removable Brake Assembly: The mounting assembly can be unbolted to simplify access to hub seals and bearings.
- Separately Replaceable Actuator: Service the electronic actuator without automatically replacing the entire caliper.
- Vehicle-Specific Harness: A single, correctly sized harness simplifies frame routing and connects directly to the control module.
- Vehicle Electronics Integration: Engineered for compatibility with supported Jeep ABS and electronic systems; vehicle-specific validation applies.
EPBX isn't limited to new axles. Compatible previously purchased ECGS and Dynatrac axle assemblies can be upgraded using their existing backing-plate mounting locations.
Whether the original axle has a traditional cable parking brake or no parking brake, EPBX provides a path to electronic parking brake control.
EPBX is coming to select ECGS and Dynatrac axles. Pricing and release dates are still being finalized. Send our sales team an inquiry to request updates and discuss your application.
Request EPBX UpdatesOpens a prewritten email to [email protected]. No purchase or reservation required.