Description
The 5-4.5″ Bolt Circle 3,500 lbs. TruRyde® Trailer Axle Self-Adjusting Electric Brake Kit (Part BK545ELEAUTO-IPS) delivers reliable, low-maintenance braking performance for 3,500 lb. trailer axles. This complete self-adjusting kit includes pre-assembled electric brakes and matching hub/drum assemblies for easy installation and consistent stopping power.
Key Features
- Part Number: BK545ELEAUTO-IPS
- Brand: TruRyde®
- Axle Capacity: 3,500 lbs.
- Bolt Circle: 5 on 4.5″
- Brake Size: 10″ x 2.25″ Self-Adjusting Electric Drum Brakes
- Spindle: 84 Spindle
- Inner Bearing: L68149
- Outer Bearing: L44649
- Mounting: 4 Hole Brake Flange
Technical Specifications
- Pair of 10″ TruRyde® hub/drum assemblies with 5 studs on 4.5″ bolt circle using L68149 inner and L44649 outer bearing
- Contains inner bearings, outer bearings, grease seals, grease caps, ultra lube grease caps, spindle washers, spindle nuts, cotter pins, tang washers, and lug nuts (84 Spindle)
- Pair of 10″ x 2.25″ TruRyde® self-adjusting electric trailer brake assemblies with parts
- 4 Hole Mounting – works with Alko, Dexter, Quality, Lippert, and other popular trailer axle manufacturers
- Fits 3,500 lbs. trailer axles with four-hole brake flange
- Includes full mounting hardware
- Fully assembled backing plates with shoes, springs, and magnets attached (one left hand + one right hand)
The self-adjusting mechanism automatically maintains proper brake shoe clearance, reducing maintenance needs and ensuring consistent, reliable braking performance over time.
Questions about this TruRyde self-adjusting brake kit or compatibility? Call our trailer experts at 1-800-866-3336.
Browse more Trailer Electric Brake Kits.
| Part No | Quantity | Description |
| RVD-U-545 | 2 | TruRyde® 5-4.5″ 10″ Hub and Drum |
| BK-10E-01SA | 1 | TruRyde® 10″x2.25″ Left Hand Self-Adjusting Electric Brake |
| BK-10E-02SA | 1 | TruRyde® 10″x2.25″ Right Hand Self-Adjusting Electric Brake |
| 716LW | 8 | 7/16″ Lock Washer |
| 716NFN | 8 | 7/16″ Fine Hex Nut |
| DC-198 | 2 | 1.98″ Dust Cap |
| FS622P | 2 | 1.98″ Lube Dust Cap with Rubber Plug |
| TW100 | 2 | 1″ Tang Washer |
| A1W | 2 | 1″ Spindle Washer |
| FA-SN100 | 2 | 1″-14 Spindle Nut |
| 18X134CP | 2 | Cotter Pin |
| L68149 | 2 | TruRyde® Inner Bearing |
| L44649 | 2 | TruRyde® Outer Bearing |
| GS-1719DL | 2 | 1.719″ ID Double Lip Grease Seal |
| X1023R | 10 | 1/2″-20 Lug Nut 60 Degree 13/16″ WAF |
QAI Certification Testing Standards for Trailer Brakes
QAI Laboratories is an independent, accredited third-party testing and certification organization. QAI certification provides assurance that trailer brakes have been rigorously tested to meet recognized safety and performance standards.
Primary Standards for Trailer Brakes
- CAN3-D313-M85 (R2012) — Canadian standard for Trailer Running Gear (axles, brakes, and suspension)
- CSA Z240 — Recreational Vehicles and Manufactured Housing standard
- FMVSS / CMVSS — Federal Motor Vehicle Safety Standards (U.S. and Canada) for braking performance
- UL Electrical Standards — Testing of brake magnets, wiring, and electrical components
What QAI Tests
- Braking performance and stopping power
- Electrical current draw and magnet strength
- Resistance to water, dust, heat, and corrosion
- Mechanical durability and long-term wear
- Self-adjusting mechanism performance (when applicable)
- Safety labeling and traceability
Trailer brakes that carry the QAI Certified mark (including many TruRyde® and Lippert® models) have been independently verified to meet these strict standards, giving you confidence in safety and reliability.
QAI Certified Trailer Brake Brands (Industry-Wide)
QAI Laboratories is a respected independent testing and certification organization. Below is the current status of major trailer brake brands regarding QAI certification:
| Brand | QAI Certified | Notes |
|---|---|---|
| TruRyde® | Yes | Most models are QAI Certified — Southwest Wheel’s primary brake line |
| Lippert® | Yes | Many electric and hydraulic brake assemblies are QAI Certified |
| UFP | Yes | Especially strong on hydraulic disc brake systems |
| Kodiak | Yes (Select Models) | Many disc brake kits carry QAI certification |
| Dexter® | Limited / Not Commonly Advertised | Focuses on internal testing and FMVSS compliance |
| Generic / Chinese Brands | Very Rarely | Most low-cost imported brakes sold on marketplaces do not carry QAI certification |
Note: QAI certification is a strong indicator of independent safety and performance testing. Always verify current certification status on specific part numbers when safety is critical.
