TRAILER SUPPLIES 12-1/4" x 3-3/8" Electric Trailer Brake Kit, 4-Pack, Self-Adjusting for 8K Axles + 4 Grease Seals 2.250" ID × 3.376" OD – Replaces($436.99Value)

Description

【Complete Brake & Seal Combo】Includes four (4) 12-1/4" × 2-1/2" self-adjusting electric brake assemblies and four (4) double-lip grease seals for a complete brake service solution. 【Compatible with Dexter & Lippert Axles】Designed for 8,000 lb (8K) trailer axles using standard 12-1/4" brake drums and a 4-bolt brake mounting flange. 【Standard 4-Bolt Brake Mounting】Standard 4-bolt brake flange with bolt hole spacing (center-to-center) of approximately 5" diagonal, 3-7/16" horizontal × 3-5/8" vertical; measurements are taken center-to-center. 【Self-Adjusting & Preassembled】Fully assembled brake units automatically maintain proper shoe-to-drum clearance, providing reliable braking performance with reduced maintenance. 【OEM Compatibility】Replaces Dexter K23-434-00 (LH), K23-435-00 (RH), 010-036-00, 10-36; also compatible with National 22333TB—ideal for cargo, utility, and livestock trailers. Upgrade your trailer’s braking system with this TRAILER SUPPLIES Electric Trailer Brake & Seal Combo Kit, designed for 8,000 lb (8K) trailer axles using a standard 4-bolt brake mounting flange. This kit includes four (4) 12-1/4" × 2-1/2" self-adjusting electric brake assemblies along with four (4) double-lip grease seals, providing a convenient all-in-one solution for brake replacement or upgrades. Each brake assembly comes fully preassembled with heavy-duty brake shoes, return springs, and high-quality electric magnets mounted on durable steel backing plates. The self-adjusting design automatically maintains proper shoe-to-drum clearance, reducing maintenance requirements while delivering consistent and dependable stopping power. The included double-lip grease seals help retain grease and protect wheel bearings from dirt and moisture during operation. ⚠️ Grease seals are size-specific and not universal — please verify seal dimensions and axle compatibility before ordering.