Description
ARK MPR45R Round Mounting Plate is designed specifically for trailers running 45mm round axles and fitted with 9” hydraulic drum backing plates. This heavy-duty brake plate is the perfect fitment base when installing or replacing hydraulic drum brake systems.
Crafted from high-strength steel and precision-formed to suit round axles, this mounting plate provides a secure, stable, and vibration-resistant base for your trailer’s brake components. Whether you’re building a new trailer, converting from electric to hydraulic brakes, or simply refreshing old hardware, the MPR45R gives you reliable performance and an exact fit.
Key Features:
- Round brake mounting plate for 45mm round axles
- Compatible with standard 9” hydraulic drum brake backing plates
- Heavy-duty construction for long-term durability
- Perfect for hydraulic brake upgrades or replacements
- Ideal for boat trailers, campers, and heavy-duty box trailers
This mounting plate takes the guesswork out of brake installation by offering a clean, purpose-built fit for your braking hardware—no cutting, welding, or risky custom jobs required.






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