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RGP 12,000 lb Trailer Axle Brake Drum, 12-1/4" x 5", 8 on 6.5", Fits Dexter 12K Heavy Duty Axles


Regular price $204.89 USD
Shipping calculated at checkout.

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received. 

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.
Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.
Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Product Overview: 

The RGP 12K Heavy Duty Trailer Brake Drum is designed as a replacement for 12,000 lb heavy-duty trailer axles. This drum measures 12-1/4" x 5" and features an 8 on 6.5" bolt pattern.

Designed for use with 5" electric or hydraulic brake assemblies, this heavy-duty brake drum provides a durable braking surface for demanding trailer applications. It is commonly used on flatbed trailers, equipment trailers, and dual tandem trailers.

Key Specifications

  • Axle Capacity: 12,000 lbs
  • Product Type: Brake Drum Only
  • Drum Capacity: 7,500 lbs
  • Drum Size: 12-1/4" x 5"
  • Bolt Pattern: 8 on 6.5"
  • Hub Pilot: 4-3/4"
  • Brake Compatibility: 5" Electric & Hydraulic

What's Included: 

(1) 12-1/4" x 5" Heavy Duty Trailer Brake Drum for 12,000 lb Trailer Axles

DRUM ONLY — Hub, bearings, bearing races, seal, oil cap, wheel studs, and lug nuts are NOT included.

OEM Replacement Part Numbers:

RGP Brake Drum Replaces / Interchanges With:

  • Dexter 009-028-01

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
B
Benjamin Jones
Excellent Part

Quality brake component with a secure fit and reliable performance.

D
Daniel Romero
Works Great

Dependable trailer part that has worked flawlessly.

S
Scott Turner
Solid Quality

Simple installation and excellent performance so far.

A
Antonio Alvarez
Funciona Muy Bien

Buen producto, resistente y confiable para uso diario.