Fits: 16"–16.5" Wheels | 8-Hole Pattern | 6.5" & 170mm Bolt Circle
Eliminate the "hop" and vibration common in dual-rear-wheel trucks. The Centramatic 400-409 is a heavy-duty, "on-board" balancing solution designed for 1-ton light-duty trucks, RVs, and trailers. By balancing the entire wheel assembly while you drive, these units protect your tires and provide a significantly smoother ride.
Model #: 400-409
Vehicle Type: 1-Ton Trucks (Dually), Bus, Motorhome, Trailers/RVs
Axle Compatibility: Drive Axle (Rear Duals)
Wheel Size: 16 in. to 16.5 in.
Bolt Pattern: 8-Hole
Bolt Circle: Dual Fitment — 6.5 in. & 170mm
Quantity: Set of 2 (One pair for the rear drive axle)
⚠️ Fitment Note: Due to variances between vehicle models, these may not fit all applications. Please verify clearance before installation.
Centramatic's patented technology uses a permanently sealed ring filled with hardened durametal alloy and proprietary synthetic fluid. As your wheels spin, this media automatically shifts via centrifugal force to counteract heavy spots in the tire, wheel, hub, and drum.
Smoother Dually Ride: Dramatically reduces the vibration and "pounding" often felt in dually setups, whether loaded or empty.
Extended Tire Life: Proven to increase tire longevity by 25%–50%—a major cost saver for 6-tire vehicles.
Lower Operating Temps: Keeps tires 8%–10% cooler, preserving the tire casing and reducing rolling resistance.
Maintenance-Free: No lead weights to fall off and no beads to clog your valves. Just install and drive.
Easy Setup: These mount directly between the dual wheels. No pre-balancing is required at the tire shop.
Speed Activated: The system begins balancing dynamically once you reach 20–22 mph.
Made in the USA: Precision-engineered and manufactured in Texas.
5-Year Warranty: Backed by a 5-Year / Unlimited Mileage Warranty against defects in material and workmanship.
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