SEHNSUCHT Electric Trailer Brakes 10" x 2-1/4" Set of 4 (2L+2R) for 3,500 lb Axles — 4-Hole Mount, Direct-Fit Replacement

SEHNSUCHT 10" x 2-1/4" electric trailer brakes (set of four) are bolt-on replacement brake assemblies—two left and two right—designed for 3,500 lb axles with a 4-hole mounting pattern.

These brake assemblies are a direct-fit replacement option for many 3,500 lb trailer axles, offering the classic electric brake design scaled to a 10" diameter drum. Built to work in varied road and weather conditions, the assemblies include left and right shoes, springs, washers and nuts needed to complete a basic installation (bolts not included). They suit trailers using the common 4" bolt circle and 4-hole flange layout; confirm flange spacing and bolt pattern before ordering.

How do these brakes match my 3,500 lb axle?

SEHNSUCHT brakes are made to fit many 3,500 lb axles that use a standard 4-hole mounting pattern and a 10" x 2-1/4" drum size. They are not compatible with certain higher-capacity backplates such as the Dexter 4,400 lb backplane—measure your brake flange before buying.

• Fits 10" diameter x 2-1/4" width brake drums
• Designed for 3,500 lb axle applications
• Mounts to standard 4-hole flange with 4" PCD and 2-7/8" adjacent bolt spacing
• Set includes 2 left and 2 right assemblies plus washers and nuts

What comes in the box and what is not included?

The package contains two left and two right 10" electric brake assemblies along with 16 spring washers and 16 nuts for installation. Fastening bolts for mounting to the flange are not supplied, so you’ll need the correct grade bolts for your axle and flange.

• Included: 2 left + 2 right electric brakes (10" x 2-1/4")
• Included: 16 spring washers and 16 nuts
• Not included: mounting bolts and wheel bearings/hubs
• Recommendation: verify bolt diameter and thread pitch before purchase

How do these electric brakes perform and what maintenance do they need?

The assemblies use a time-tested electric brake design intended for prompt response under braking loads; they handle routine towing conditions when installed and adjusted correctly. Periodic inspection of shoes, springs, and electrical connections keeps braking consistent and prolongs service life.

• Classic electric brake design for reliable engagement
• Inspect shoe wear and adjust as part of regular maintenance
• Keep mounting hardware tight and wiring connections corrosion-free
• Replace in matched pairs (both wheels on an axle) for balanced braking

What installation checks should I perform before fitting?

Before installing, measure your brake flange bolt circle and spacing to confirm compatibility, and ensure your hub and bearings are in good condition. Use appropriate bolts rated for wheel/brake mounting and tighten to the axle manufacturer's torque specs.

• Measure flange PCD (4") and adjacent bolt spacing (2-7/8")
• Confirm brake drum internal diameter 10" and width 2-1/4"
• Use correct grade bolts (not included) and proper torque values
• Test electrical braking function with a controller after installation

Who this product is for: These SEHNSUCHT brake assemblies are for trailer owners, fleet operators and DIY mechanics who need a full axle set of 10" x 2-1/4" electric brakes for common 3,500 lb axles using a 4-hole flange. Ideal for cargo trailers, utility trailers, and small RV conversions where a reliable, bolt-on replacement is required—verify flange pattern and compatibility before purchase. After-sale support is provided should any issues arise during fitment or initial use.