If you’re upgrading or replacing a tandem trailer’s braking and running gear, you want options that deliver dependable stopping power, easy maintenance, and straightforward installation. This guide highlights five top electric-brake tandem axle kits that fit common 82-inch trailer frames and feature 95-inch hub faces with 80-inch spring centers, or close equivalents. These selections are best for utility, cargo, boat, landscape, and dump trailers. Each product includes complete running gear packages, dual electric brake axles, and pre-mounted tires or ready-to-mount components for faster setup.
Below is a quick summary of the five recommended products to help you compare at a glance. The table focuses on fitment and kit contents to support fast decision-making for practical trailer upgrades.
- Rockwell American 7,000 lb Tandem Axle Kit – Electric Brakes – 95” Hub Face / 80” Spring Center
- Rockwell American 7,000 lb Tandem Axle Kit – Electric Brakes – 89” Hub Face / 74” Spring Center
- Dexter 3,500 lb Tandem Axle Kit – Electric Brakes – 95” Hub Face / 80” Spring Center
- Rockwell American 7000 lb Tandem Axle Kit – Electric Brakes – 95” Hub Face / 80” Spring Center
- Salo Trailer Parts 5200 lb Tandem Axle Kit – 95” Hub Face / 80” Spring Center
Rockwell American 7,000 lb Tandem Axle Kit – 95″ Hub Face
This complete dual-axle kit uses 7,000 lb electric brakes and includes double-eye springs, U-bolt kits, a tandem hanger set with equalizers, shackles, and ST235/80R16 radial tires mounted on 8-lug wheels. It is designed for 82” wide frames with a 95” hub face and 80” spring center and uses an 8 on 6.5” bolt pattern. Best for heavier utility or cargo trailers that require robust braking and long service life, with Posi-Lube spindles for easy bearing lubrication. A potential limitation is the weight and tire size, which may require upgraded winches or frame reinforcement on lighter trailers.
Best for: heavier duty tandem trailers that routinely haul substantial loads and require reliable electric braking and quick install with pre-mounted tires.
Rockwell American 7,000 lb Tandem Axle Kit – 89″ Hub Face
This kit fits 76” wide trailer frames with an 89” hub face and 74” spring center, including 7,000 lb electric brake axles and ST235/80R16 radial tires pre-mounted on 8-lug wheels. It complements tandem utility, cargo, boat, and landscape trailers. It uses Posi-Lube spindles for bearing lubrication. Best for mid-size trailers needing a compact hub-face profile while preserving strong braking power. Limitation: slightly narrower track may require frame adjustments on wider trailers.
Best for: mid-width trailers needing reliable brakes without extending the axle footprint significantly.
Trailer Axle Electric Brake Kit – 10″ Drum Brakes (5-Hole, 4.5″ Circle)
This drum brake kit is designed for 3500 lb axles and includes two 5-hole brake drums, self-adjusting electric brakes, and related hardware. It uses iron drums with electroplating for corrosion resistance. Best for someone upgrading lighter tandem setups or restoring 3500 lb axles with proven drum-brake reliability. Limitation: not compatible with 7000 lb systems—verify axle capacity before selecting.
Better for: lighter tandem trailers where drum brakes are preferred or where a straightforward replacement kit is desired.
Dexter 3,500 lb Tandem Axle Kit – 95″ Hub Face
This kit provides a complete tandem running gear for 3,500 lb axles, including dual electric brake axles, double-eye springs, and a tandem hanger kit. It is intended for trailers with a 95” hub face and 80” spring center and uses a 5 on 4.5” bolt pattern. Best for lighter-duty tandem trailers such as utility and light cargo trailers. Caution: axle capacity should match payload needs to avoid overstressing components.
Rockwell American 7000 lb Tandem Axle Kit
Designed for 82” wide trailer frames with 95” hub face and 80” spring center, this kit uses an 8 on 6.5″ bolt pattern and provides 7,000 lb electric brakes per axle. It includes full install hardware, tandem hangers, and Posi-Lube spindles for easy maintenance. Best for heavy-duty trailers that need robust stopping power and broad wheel compatibility. Limitation: heavier assembly may require additional frame reinforcement or equipment handling during installation.
Salo Trailer Parts 5200 lb Tandem Axle Kit
This 5200 lb tandem kit fits 95 in hub face and 80 in spring center with 6 lug on 5.5 in pattern. It includes electric brake axles, a full suspension kit with leaf springs, U-bolts, and hangers, plus ST225/75R15 radial tires mounted on 6 lug wheels. Best for trailers needing solid braking and a complete mounting package. Limitation: payload capacity is lower than the 7,000 lb options, so verify your trailer’s total GVWR before choosing.
Buying Guide
Key considerations when choosing a tandem axle kit with brakes:
- Load capacity: Match the total trailer GVWR to the axle kit’s capacity (3,500 lb, 5,200 lb, 7,000 lb options are common). Higher capacity improves braking reliability on heavier loads.
- Hub face and spring center: Ensure the hub face (distance across the axle) and spring center (frame mounting distance) fit your trailer’s frame width and suspension geometry.
- Bolt pattern compatibility: Common patterns include 5 on 4.5″, 6 on 5.5″, and 8 on 6.5″. Verify wheel compatibility to avoid separate wheel purchases.
- Brake type and size: Electric brakes on larger tandems (7,000 lb) deliver stronger stopping power. Drum brakes are common on lighter tandems; consider maintenance and environmental conditions.
- Lubrication system: Posi-Lube spindles simplify bearing lubrication without hub removal, reducing maintenance time.
- Complete kit contents: Look for included springs, U-bolts, hangers, equalizers, and tires to minimize separate purchases.
- Application fit: Confirm the kit is designed for the trailer type you own (utility, boat, cargo, landscape, or dump) and that frame width aligns with the kit’s design.
FAQ
- Q: What is hub face and spring center? A: Hub face is the distance between wheel mounting surfaces, while spring center is the distance between spring mounting points on the trailer frame.
- Q: Are these kits suitable for boat trailers? A: Yes, several kits are designed for boat, utility, and landscape trailers, but confirm axle capacity matches your trailer’s load.
- Q: Do all kits include tires? A: Some kits come with tires already mounted; others provide axles and hardware only. Check product details for tire inclusion.
- Q: Is Posi-Lube important? A: Posi-Lube spindles simplify bearing lubrication, improving service life and reducing maintenance downtime.
- Q: Can I mix components from different kits? A: Mixing components is not recommended; use a complete kit compatible with your trailer’s frame and wheel pattern to ensure safe operation.
- Q: Do these kits require professional installation? A: Not always, but electrical brake wiring and axle alignment can benefit from professional installation, especially on heavier tandems.