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Zip ties





| Connector Type | Male |
| Terminal Style | Pin |
| Battery Operated | No |
| T-Connector Position | Bh1 |
| Material Type | Thermoplastic Rubber |
| Wire Length | 24 in |
| Wire Gauge | 12 gauge |
A CURT Quick Plug brake controller wiring adapter is one of the fastest and easiest ways to plug your brake controller into your vehicle. It requires no cutting or splicing! Just insert the vehicle-specific plug end into the OEM vehicles factory brake controller socket. The other end plugs into your CURT trailer brake controller.
Quick Plug harnesses are available for a variety of vehicles and are unique for each vehicle application to provide the easiest possible installation. This particular brake controller harness fits certain years of the Subaru Ascent (see application info to verify fitment).
CURT Quick Plug harnesses are compatible with most CURT brake controls and can be used as a replacement or for a new control unit installation. They're also great for towing all types of trailers with electric brakes.
For versatile mounting of your trailer brake controller this Quick Plug wire harness measures two feet long. It also features a slit loom sleeve to keep the wires protected against crushing and abrasions. CURT Quick Plug wire plug-in adapters are made with 12-gauge wires for a reliable connection and braking, and come with zip ties to keep the harness contained and out of sight.

CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494One-Year Limited
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2019 - 2026 | Subaru Ascent | Installation Location: BH1 Installation Time: 30-60 minutes |
The CURT Trailer Brake Controller Harness, Select Subaru Ascent 51533 (Part #BKDK51533) fits 2019-2026 Subaru Ascent models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT Trailer Brake Controller Harness, Select Subaru Ascent 51533 (Part #BKDK51533) fits the following vehicles: 2019-2026 Subaru Ascent. Always verify your specific year, make, and model before ordering.
Yes, the CURT Trailer Brake Controller Harness, Select Subaru Ascent 51533 (Part #BKDK51533) is designed to fit the 2019-2026 Subaru Ascent.
The CURT Trailer Brake Controller Harness, Select Subaru Ascent 51533 (Part #BKDK51533) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Part 51533 is a custom jumper harness for brake controller installation. It connects the vehicle's factory wiring harness to an aftermarket brake controller. The installation is rated as easy difficulty.
The manual does not specify which vehicle makes, models, or years are compatible with part 51533. Contact Curt Manufacturing or consult a fitment database to confirm compatibility with your vehicle before purchasing.
You will need a flathead screwdriver and side cutters. Proper tools will improve installation quality and reduce installation time.
Open the driver-side door and look above the driver-side kick panel. You will find a white housing taped to a group of wires, located halfway between the front edge of the dash and the firewall. This is where you will attach the custom jumper harness.
1. Open the driver-side door and locate the white housing taped to wires above the driver-side kick panel, halfway between the front edge of the dash and the firewall. 2. Attach the custom jumper harness to the vehicle harness at this location. 3. Route the wiring to the brake controller. 4. Use zip ties to secure the harness up and out of the way of the driver's feet.
Do not lay tools across the positive terminal (typically marked with red covers or a red '+' symbol). This can cause a ground short, resulting in sparks and/or electrical shocks. Additionally, do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
Test for proper function by using a test light or by connecting a properly wired trailer. This confirms the brake controller harness is functioning correctly before regular use.
Perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections. Regular inspection helps prevent electrical failures and ensures safe operation.
The manual does not list specific vehicle applications. Check the product listing or contact Curt Manufacturing to confirm fitment for your vehicle.
A flathead screwdriver and side cutters are required.
No. The installation is rated as easy difficulty. You will need a flathead screwdriver, side cutters, and the ability to access the driver-side kick panel area.
Do not lay tools across the positive terminal (marked with red covers or '+' symbol) as this can cause sparks or electrical shocks. Do not exceed the product rating or tow vehicle lamp load rating.





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