Dexter 12-1/4" × 3-3/8" Electric Brake Assembly Pair — 8K Left & Right | K23-434-00 + K23-435-00

Complete matched set of genuine Dexter 8K electric brake assemblies — one left hand (driver side, K23-434-00) and one right hand (passenger side, K23-435-00) — ready to replace both sides of a single 8,000 lb axle in one purchase.

Both assemblies feature Dexter's Forward Self-Adjusting (FSA) mechanism and arrive fully pre-assembled with shoes, springs, magnets, and adjuster hardware mounted to the backing plates.

📐 Specifications

🔍 What's Included (Each Assembly)

• Brake backing plate (4-bolt)
• Brake shoes (primary and secondary)
• Electric magnet (wired)
• Return springs and hold-down hardware
• FSA self-adjuster mechanism
• Adjuster cable and anchor pin

⚠️ Mounting hardware (bolts) not included. Hub/drums sold separately.

🛠 Compatible Axles & Applications

Fits any 8,000 lb (8K) axle with 12-1/4" × 3-3/8" brake flanges and 4-bolt mounting pattern:

• Dexter 8K electric brake axles
• Lippert 8K axles (replaces Lippert 298277 LH + 298279 RH)
• Besser Pro 8K axles

Commonly installed on: equipment trailers, flatbed trailers, car haulers, utility trailers, gooseneck trailers, livestock trailers, horse trailers, and snowmobile trailers rated at 8K GVW or higher.

💪 Key Features

✔ Complete Axle Replacement Set

One purchase covers both sides of a single 8K axle. Matched pair ensures consistent brake performance on both wheels — critical for straight, balanced stopping.

✔ Forward Self-Adjusting (FSA)

Automatically maintains optimal shoe-to-drum clearance during normal use. Less maintenance, more consistent brake feel throughout the life of the linings.

✔ Genuine Dexter OEM — Both Units

Factory-specification parts, not aftermarket substitutes. Same assemblies Dexter installs on new axles.

✔ Pre-Assembled — Bolt Straight On

Both units arrive fully assembled. No parts to install, no springs to stretch. Remove the old assembly, bolt on the new one.

🚛 In Stock & Ready to Ship

Need just one side? Available individually:
Left Hand Only — K23-434-00 | Right Hand Only — K23-435-00

📞 Call/Text: 517-225-1991 🌐 AAATrailer.com

🔄 Cross Reference / Alternate Part Numbers

K23-434-00 | K23-435-00 | 23-434 | 23-435 | 023-434-00 | 023-435-00 | 856-0097 | 856-0098 | Lippert 298277 | Lippert 298279 | 12.25 x 3.375 8K electric brake pair | Dexter 8K brake kit

What sets us apart is our dedicated team of knowledgeable professionals who are always ready to assist. Great customer service isn't just a promise—it's the foundation of our success. We invite you to visit our showroom or reach out for personalized advice. Whether you're purchasing online or stopping by, we're here to make your trailer journey seamless. Visit Us Today

• Address: 4675 East Grand River Ave, Howell, MI 48843
• Phone: (517) 225-1991 (Call or text)
• Hours: Monday to Friday: 10:00 AM - 5:30 PM | Saturday: By appointment

Thank you for considering AAA Trailer. We're excited to help you hit the road with confidence! If you have any questions, don't hesitate to contact us.

To deliver your favorite products, we have partnered with the UPS & FEDEX . We are ready to entrust them with your orders and are always on your side if something goes wrong.

 We will be happy to assist you with eligible returns, the return instructions, and the shipping address. If you need a return or exchange, send us an email so we can discuss a replacement.