Fits: 16"–17" Wheels | 8-Hole Pattern | 6.5" Bolt Circle | 5/8" Studs
Eliminate the extreme road vibration and tire "hopping" common in large triple-axle trailers. The Centramatic 300-318D6 is the professional choice for heavy-duty toy haulers, flatbeds, and horse trailers, ensuring your entire wheel assembly stays in perfect equilibrium while you tow.
Model #: 300-318D6
Vehicle Type: Triple-Axle Trailers (8K+ Axles)
Quantity: Full Set of 6 (Covers all three axles)
Wheel Size: 16 in. to 17 in.
Bolt Pattern: 8-Hole
Bolt Circle: 6.5 in.
Stud Size: Specifically for 5/8" studs
⚠️ Fitment Note: Due to variances between trailer models, we may not be able to fit all applications. Please verify hub and brake drum clearance before installation.
Centramatic's patented technology uses a permanently sealed ring filled with hardened durametal alloy and proprietary synthetic fluid. As you tow, centrifugal force automatically shifts this media to counteract heavy spots in the tire and wheel assembly.
Protect Your Trailer: Dramatically reduces the vibration that leads to loose rivets, cracked welds, and interior cabinet wear in large RVs.
Maximum Tire Life: Proven to increase tire longevity by 25%–50%—a major saving for 6-tire setups running expensive high-load tires.
Lower Operating Temps: Keeps tires 8%–10% cooler, which is critical for preventing blowouts during long-distance hauling.
Continuous Adjustment: Automatically compensates for mud, snow, or "flat spots" caused by long-term parking.
Maintenance-Free: A sealed, self-contained system with zero upkeep required—just install and tow.
Easy Setup: No pre-balancing needed. These mount directly behind the wheel on the hub using your existing 5/8" studs.
Speed Activated: The balancing media shifts into the correct position at ~20–22 mph, ensuring stability long before you hit highway speeds.
Made in the USA: Built in Texas and backed by a 5-Year / Unlimited Mileage Warranty.
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