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Bulldog Winch
Part # J171135
350A Winch Power Interrupt KitUniversal fit
$103.99
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Fitment & Sensor Notes
Universal electrical kit; mounting and wiring adaptation required. Verify voltage, current rating, cable routing, terminal connections, and the specific winch before installation. Not a plug-and-play Bronco AUX-switch harness.
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1 hr
Install time
Wire-in
Fitment
All trims
Universal
Details
Switched Power Control for a Compatible Accessory Circuit
The Bulldog Winch Power Interrupt Kit gives a compatible electrical accessory a cabin-operated power disconnect. A solenoid switches the main cable, and the included illuminated control switch operates that solenoid. The manufacturer identifies this part as its 350A Power Interrupt Kit, part 20038B. It is a universal wiring product rather than a Bronco-specific plug-in harness, so the electrical requirements and mounting arrangement need to be checked for the intended installation.
Power Enable Is Separate from Winch Operation
The interrupt kit provides an on/off function for the connected supply. It does not command a winch to pull in, spool out, or release its clutch. Those functions remain with the winch's own controls. This distinction matters when planning an overhead AUX-switch setup: a single AUX switch can be part of a suitable solenoid control circuit, but it is not a replacement for the winch's direction-control remote.
The main current path and switch-control path are also separate. The large accessory cable passes through the switching device, while smaller control wiring operates it. Do not route winch motor current through the Bronco's factory AUX wiring. Any adaptation to an existing vehicle switch needs to follow the kit and vehicle requirements, including appropriate circuit protection and the correct control connections.
Included Switch and Installation Components
Bulldog supplies a laser-etched illuminated switch, an under-dash mounting bracket, and a 10A circuit breaker with the interrupt assembly. The switch face gives the cabin control a clear, purpose-made label. The mounting bracket provides an option for locating that control without treating the kit as a vehicle-specific dashboard insert.
The included 10A breaker is a control-circuit component, not a statement that a winch motor can run from a 10A supply. Likewise, the manufacturer's 350A product designation should not be used by itself to approve an unknown winch. Confirm the applicable current and duty requirements before choosing an interrupt device for a particular motor and recovery setup.
Check the Complete Electrical Installation
Decide where the solenoid will mount and where the main cable will run before installation. The mounting surface must support the assembly, and the cable route must avoid sharp edges, heat, and moving components. Check the available battery connection, terminal size, cable length, and space around the intended mounting location. Additional correctly specified cabling or terminals may be needed for a custom layout.
Universal fitment does not mean every vehicle or winch uses the same wiring. A Bronco's trim, roof, and door configuration do not establish that a particular winch current demand is suitable for this kit. An installer should verify the complete circuit rather than relying on the product's appearance or a pulling-capacity number on the winch housing.
This listing does not claim manufacturer-confirmed compatibility with either DV8 12,000 lb winch. If that is the intended combination, check the winch's electrical specifications and the interrupt kit's ratings before ordering it as a matched system. For an existing overhead AUX switch, confirm the control arrangement before deciding whether to use the supplied dash switch or integrate the vehicle switch instead.
Specifications
| Brand | Bulldog Winch |
|---|---|
| Manufacturer part | 20038B |
| Manufacturer designation | 350A Power Interrupt Kit |
| Supplier SKU | J171135 |
| Application | Universal; electrical and mounting adaptation required |
| Cabin control | Laser-etched illuminated switch |
| Included breaker | 10A control-circuit breaker |
| Install time | 1 Hour |
What's Included
- Power interrupt solenoid assembly
- Illuminated control switch
- Under-dash switch mounting bracket
- 10A circuit breaker
- Supplied wiring components and instructions
What's Included
- Power interrupt solenoid assembly
- Laser-etched illuminated control switch
- Under-dash switch mounting bracket
- 10A circuit breaker
- Supplied wiring components and instructions
Questions
Can my Bronco AUX switch control this kit?
An existing AUX switch may be integrated into a compatible solenoid control circuit after the installer checks the vehicle and kit requirements. The kit is not a Bronco-specific plug-in harness. Never carry the winch motor's main current through the factory AUX wiring.
Does the switch pull the winch in and out?
No. It enables or disables the connected power supply. Use the winch's own remote and controls for direction and clutch operation.
Is this a guaranteed match for the DV8 12,000 lb winch?
Manufacturer-confirmed compatibility for that combination has not been established. Verify the interrupt solenoid's current and duty ratings against the exact winch before treating them as a matched system.
What is included?
Power interrupt solenoid assembly; Laser-etched illuminated control switch; Under-dash switch mounting bracket; 10A circuit breaker; Supplied wiring components and instructions.
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Shipping & returns
Ships direct from the manufacturer's warehouse.
Processing time: In stock at supplier
Standard delivery: 3–5 business days to the contiguous 48 states
Oversized items (bumpers, roof racks, sliders) ship via freight carrier. Freight deliveries require a signature and delivery appointment — we'll contact you to coordinate.
Free shipping on orders more than $150. We do not ship to Alaska, Hawaii, or international addresses. Tracking is emailed automatically once your order ships.
Lifetime Returns
Days 1-30: Refund to your original payment method, minus a 25% restocking fee.
Day 31 and beyond: Lifetime store credit (minus 25% restocking fee) — never expires, but requires mint condition and photo approval first.
To start a return, email contact@broncoforge.com for an RMA number. Returns without an RMA will not be accepted.
Items must be unused, uninstalled, and in original packaging ($25 minimum purchase). Customer covers return shipping unless the item arrived damaged or incorrect. Custom/special-order, sale/clearance, and installed or worn items are not eligible for return.
California Prop 65 warning
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.