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Jammy LED Breakaway & 7-Way Trailer Wiring Kit — Built-In Charger, Battery Test, 12V Battery & 6′ Cord with Junction Box


Regular price $75.79 USD
Shipping calculated at checkout.

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received. 

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.
Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.
Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Product Description: 

Upgrade your trailer's emergency breakaway equipment and front wiring connection with this Jammy bundle.

The J-BWEK-V2 breakaway system includes a rechargeable 12V battery, built-in charging circuit, LED charge indicators, and a push-to-test button. The included breakaway switch activates the emergency braking circuit when its pull pin is removed during trailer separation. 

The J-5067-JB assembly combines a 6' cord and molded 7-way RV blade plug with a prewired weatherproof junction box, providing a central connection point for your trailer's wiring. 

Specifications: 

Component brand: Jammy
Breakaway system: J-BWEK-V2
Battery voltage: 12V
Charging system: Built-in charging circuit
Battery test: LED indicators with push-to-test button
Battery box: Top-load plastic enclosure with mounting flange

Breakaway switch: J-ELEC with pull cable
Cord and junction box: J-5067-JB
Cord length: 6'
Plug style: 7-way RV blade
Junction box material: Weatherproof ABS
Cable conductors: Two 10AWG, one 12 AWG, and four 14 AWG
Junction box mounting center: 7.35"

What's Included by Kit Option:

1 x Jammy J-BWEK-V2 battery box with lid and mounting flange
1 x Rechargeable 12V breakaway battery
1 x Integrated charging circuit with LED indicators and test button
1 x Jammy J-ELEC breakaway switch with pull cable
Attached breakaway-system wiring leads
1 x Jammy J-5067-JB junction box prewired to a 6' cord with molded 7-way RV blade plug

The charger and LED test circuit are built into the breakaway system. The battery is pictured separately to show the included component. 

Compatibility & Installation:

For compatible 12V electric-brake trailer systems. Verify brake-system requirements, mounting space, and connector wiring before installation. 

The breakaway system and cord/junction-box assembly are supplied separately and require installation and electrical connection. Charging requires a correctly connected auxiliary power supply. Follow the manufacturer's wiring diagrams and identify circuits by function. 

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  • 5 stars: 3 (100%)
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E
Emily Carter
Good Parts

Quality looks good.

J
James Anderson
Great Quality

everything works properly.

J
James
Great Product!

very well made and fit my trailer perfectly