--- product_id: 18163496 title: "Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5\" Bolt Circle" brand: "southwest wheel" price: "¥170356" currency: JPY in_stock: true reviews_count: 11 category: "Southwest Wheel" url: https://www.desertcart.jp/products/18163496-southwest-wheel-3-500-lbs-trailer-axle-self-adjusting-electric store_origin: JP region: Japan --- # Self-adjusting electric brakes 3,500 lbs load capacity Complete hardware kit included Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle **Brand:** southwest wheel **Price:** ¥170356 **Availability:** ✅ In Stock ## Summary > 🚛 Upgrade your trailer’s stopping power with confidence and ease! ## Quick Answers - **What is this?** Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle by southwest wheel - **How much does it cost?** ¥170356 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/18163496-southwest-wheel-3-500-lbs-trailer-axle-self-adjusting-electric) ## Best For - southwest wheel enthusiasts ## Why This Product - Trusted southwest wheel brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Manufactured in an ISO/TS-16949 certified factory with SAE-rated friction material and zinc-plated studs for corrosion resistance. - • **Precision Fit Guarantee:** Includes a bolt circle guide to ensure you get the perfect fit every time—no guesswork, no returns. - • **Universal Compatibility:** Fits Al-Ko, Dexter, Lippert, Quality, and Rockwell axles with a precise 5-4.5" bolt circle. - • **Plug & Play Installation:** Comes with all necessary bearings, seals, nuts, and washers for a seamless, no-hassle setup. - • **Effortless Safety Upgrade:** Self-adjusting electric brakes keep your trailer stopping power optimized without manual tweaks. ## Overview The Southwest Wheel 3,500 lbs Trailer Axle Self Adjusting Electric Brake Kit features 10" x 2 1/4" TruRyde hubs and drums with a 5-4.5" bolt circle, designed for universal fit on popular trailer axles. This kit includes self-adjusting electric backing plates and a full hardware set, manufactured to automotive standards in an ISO/TS-16949 certified facility. Engineered for durability and ease of installation, it ensures reliable braking performance and corrosion resistance for utility, travel, and specialty trailers. ## Description Product description Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle 10" Self-Adjusting Electric Trailer Brake Kit for utility trailers, travel trailers, horse trailer, motorcycle trailers, and more. Comes with TruRyde bearings, seals, lug nuts, grease caps, cotter pins, spindle washers, spindle nuts, brake mounting washers and nuts, a pair of 10" x 2 1/4" 5-4.5" bolt circle TruRyde hub and drums with parts (2 5/8" from center of one stud to the center of the next stud), and a pair of 10" x 2 1/4" TruRyde Self-Adjusting electric backing plates. TruRyde parts are manufactured to automotive standard in ISO/TS-16949 registered factory. All studs are 1/2"-20 with yellow finished zinc plating. Hubs are chemically cleaned and painted black in electrostatic booth. Backing plates are CSA compliant. SAE rated friction material. Magnets tested 100% for pull force and conductivity. Comes with Southwest Wheel bolt circle guide to insure you received the correct bolt circle. Southwest Wheel 3,500 lbs. Trailer Axle Electric Brake Kit 5-4.5" Bolt Circle Features Pair of 5-4.5" Trailer Drums Pair of TruRyde 10" x 2 1/4" 5-5" bolt circle hub and drums with parts (2 5/8" from center of one stud to the center of the next stud) Pair of 10" Self-Adjusting electric brakes Pair of TruRyde 10" x 2 1/4" Self-Adjusting electric backing plates including mounting hardware. Accessories included Comes with TruRyde bearings, seals, lug nuts, grease caps, cotter pins, spindle washers, spindle nuts, and brake mounting washers and nuts The complete 5-4.5" trailer brake kit Works with Al-Ko, Dexter, Lippert, Quality, and Rockwell Trailer Axles. TruRyde parts are manufactured to automotive standard in ISO/TS-16949 registered factory. Built for 84 spindles with a 4 hole brake flange (inner bearing L68149, outer bearing L44649) How to measure a 5-4.5" bolt circle A five lug bolt circle guide will be included with each purchase to make sure you received the correct measurement. A 5" bolt circle will measure 2 5/8" from center of stud to the next center of stud. The bolt circle is the diameter of the imaginary circle traveling through the center of the studs. Review: OEM quality. Positions clearly labeled. Self adjusting. - Work great! Uses Lucas red grease. Straight forward, but a bit messy, install. OEM replacement. One seal got smushed in shipping, even with heavy duty boxing, but supplier sent extras ASAP. Does not include wire splices/connectors. Don’t forget the break-in process, before hitting the open road. Love the self adjusting upgrade. Review: Great quality, all mounting hardqware is included and these were a snap to install. - These were a breeze to install on my 10' Hallmark enclosed trailer. Popped off the old hubs, installed the backing plate, greased and installed the new bearings in the drums and mounted the drums on the spindle. All parts look to be of good quality and everything needed to install was included in the hardware kit, minus the wiring on the trailer. I'll add that adding the wiring to the trailer took longer than mounting these on the trailer axle. ## Features - Pair of 10" x 2 1/4" 5-4.5" bolt circle TruRyde hub and drums with parts (2 5/8" from center of one stud to the center of the next stud) - Pair of 10" x 2 1/4" TruRyde Self-Adjusting electric backing plates - Works with Al-Ko, Dexter, Lippert, and Quality Trailer Axles. TruRyde parts are manufactured to automotive standard in ISO/TS-16949 registered factory. - Comes with TruRyde bearings, seals, lug nuts, open and closed grease caps, cotter pins, spindle washers, tang washers, spindle nuts, and brake mounting washers and nuts - Built for 84 spindles with a 4 hole brake flange (inner bearing L68149, outer bearing L44649) - QAI Certified & Tested! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B014VBRKU6 | | Assembly Required | No | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #178,915 in Automotive ( See Top 100 in Automotive ) #57 in Automotive Replacement Brake Trailer Brakes #1,917 in Trailer Accessories | | Brand | SOUTHWEST WHEEL | | Brand Name | SOUTHWEST WHEEL | | Compatible with Vehicle Type | Trailer | | Customer Reviews | 4.5 out of 5 stars 1,072 Reviews | | Included Components | Trailer Drums, Trailer Brakes & Small Parts | | Is Assembly Required | No | | Item Type Name | 3,500 lbs. Trailer Axle Electric Brake Kit 5-4.5" Bolt Circle | | Item Weight | 70 Pounds | | Manufacturer | SOUTHWEST WHEEL | | Manufacturer Part Number | BK545ELE-IPS | | Model Number | BK545ELE | | Model Year | 2026 | | OEM Equivalent Part Number | BK545ELEAUTO-IPS | | OEM Part Number | BK545ELEAUTO-IPS | | Orientation | Dual | | Unit Count | 1 Count | | Vehicle Service Type | Trailer | | Year | 2026 | ## Product Details - **Assembly Required:** No - **Automotive Fit Type:** Universal Fit - **Brand:** SOUTHWEST WHEEL - **Vehicle Service Type:** Trailer - **Year:** 2026 ## Images ![Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - Image 1](https://m.media-amazon.com/images/I/41TDS-S2hJL.jpg) ![Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - Image 2](https://m.media-amazon.com/images/I/61RlAfdJQ2L.jpg) ![Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - Image 3](https://m.media-amazon.com/images/I/41FbSkJFD-L.jpg) ![Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - Image 4](https://m.media-amazon.com/images/I/414mpq5yshL.jpg) ![Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - Image 5](https://m.media-amazon.com/images/I/51jA5vWDGuL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ OEM quality. Positions clearly labeled. Self adjusting. *by T***S on January 3, 2026* Work great! Uses Lucas red grease. Straight forward, but a bit messy, install. OEM replacement. One seal got smushed in shipping, even with heavy duty boxing, but supplier sent extras ASAP. Does not include wire splices/connectors. Don’t forget the break-in process, before hitting the open road. Love the self adjusting upgrade. ### ⭐⭐⭐⭐⭐ Great quality, all mounting hardqware is included and these were a snap to install. *by D***Y on December 24, 2025* These were a breeze to install on my 10' Hallmark enclosed trailer. Popped off the old hubs, installed the backing plate, greased and installed the new bearings in the drums and mounted the drums on the spindle. All parts look to be of good quality and everything needed to install was included in the hardware kit, minus the wiring on the trailer. I'll add that adding the wiring to the trailer took longer than mounting these on the trailer axle. ### ⭐⭐⭐⭐⭐ Easy replacement *by W***S on November 24, 2025* The kit is a perfect fit for my Dexter 3500 axles. Makes for easy work to completely replace my brake components with minimal effort and works perfectly ## Frequently Bought Together - Southwest Wheel 3,500 lbs. Trailer Axle Self Adjusting Electric Brake Kit 5-4.5" Bolt Circle - MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box 8 Feet, Weatherproof - BUNKER INDUST Trailer Brakes Breakaway Kit with Charger, LED Indicator, Switch, 12V 5AH Battery for Trailer Caravan --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/18163496-southwest-wheel-3-500-lbs-trailer-axle-self-adjusting-electric](https://www.desertcart.jp/products/18163496-southwest-wheel-3-500-lbs-trailer-axle-self-adjusting-electric) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-22*