AKDBuilt Hydraulic (RTAWD) Coupler Internals

First Production RT4WD Wagon Viscous Coupler Replacement — Now Available

The first production run of standard-size RT4WD Wagon viscous coupler replacement plates is officially complete. This is the first and only production-ready internal viscous coupler plate kit for RT4WD Wagons currently available on the market.

Priced at $340.00, these newly engineered viscous coupler plates are a direct 1-for-1 replacement for the original OEM wagon coupler plates—no modifications required.

What’s Included in Each Kit:

• 40 slotted plates

• 39 circular-cut plates

• 38 centering rings

Everything needed to replace worn, damaged, or failing 30-year-old OEM viscous coupler internals.

Performance & Durability

Tested by Derf.Tuned and several others, these plates are built to handle anything you throw at them. Designed to perform across 45K CST to 100K CST fluids, they are significantly stronger than the original mild steel plates.

With a superior design and modern manufacturing process, these plates exceed OEM standards and outperform any currently known reproductions or alternatives.

• Teflon-coated viscous plates

• Nickel-coated centering rings

This coating combination provides exceptional durability and improved heat dissipation, surpassing OEM and all other known variants.

Results

The end result is noticeably increased rear traction and grip, improved consistency, and renewed confidence in your RT4WD system.

Photos and videos below demonstrate form, fitment, installation, and real-world performance.

⏱ Lead Time:
Please allow up to 14 days for fulfillment, as these are first-of-their-kind, made-to-order replacement components if not in stock.