SOLAS Rubex Hub Kit RBX-102 for 15-tooth Splines — One-piece Rubber with Anodized Aluminum Splines, Vibration Reduction

The SOLAS RBX-102 Rubex Hub Kit is a durable one-piece rubber replacement hub with anodized aluminum splines that reduces propeller vibration and prevents hub spin across many Mercury/Mariner/Mercruiser, Yamaha, Honda and Force outboards and sterndrives.

This hub kit is engineered to sit inside the propeller hub cavity, absorbing shock, allowing controlled deflection and stopping the propeller from spinning independently of the shaft. Made with a single-piece rubber element bonded to anodized aluminum splines, the RBX-102 avoids plastic components that can degrade in saltwater. It’s reusable even if the propeller sustains damage, and it provides about 10° of deflection to soften gear shifts or impacts with submerged objects.

Which engine models and gearcases does the RBX-102 fit?

The RBX-102 is designed as a universal-style replacement for a wide range of outboards and sterndrives. It fits specific Mercury/Mariner/Mercruiser, Yamaha, Honda and Force applications listed by spline count and gearcase type. Always verify spline count and gearcase dimensions against your unit prior to purchase.

• Mercury/Mariner/Mercruiser: various 40–300 HP models including Bigfoot, Command Thrust, Alpha One and Bravo One (15-tooth spline in many gearcases).
• Yamaha: 80–175 HP late 1970s–early 1980s models where 15-tooth spline and 4-1/4 or 4-3/4" gearcases apply.
• Honda & Force: selected 75–150 HP models across specified year ranges and thru/dual exhaust setups.
• Check compatibility: 15-tooth spline common across most listed gearcases; confirm gearcase type (4-1/4" or 4-3/4") and model year.

How does the RBX-102 reduce vibration and protect the drivetrain?

The kit’s one-piece rubber construction provides elastic cushioning between the propeller and the shaft, absorbing torsional shocks that would otherwise transfer into the gearbox. The built-in 10° deflection prevents hard impacts from immediately loading the transmission while the anodized aluminum splines keep a secure mechanical connection without vulnerable plastic parts.

• Shock absorption: rubber body dampens sudden loads and reduces hub chatter.
• Controlled deflection: 10° movement lessens impact forces during gear shifts or debris strikes.
• Durable splines: anodized aluminum resists corrosion and maintains positive engagement.
• Reusable design: hub can be salvaged if the propeller is damaged.

What are the physical specs and origin of this hub kit?

The RBX-102 ships in compact packaging suitable for storage and easy handling, with clear weight and dimensional details for logistics. It’s manufactured in Taiwan to meet marine-grade material expectations and is marketed as a universal-fit component for the engine families listed.

• Package dimensions: 15.24 H x 7.62 L x 7.874 W centimetres.
• Package weight: 1.814 kilograms for shipping and handling reference.
• Country of origin: Taiwan; built to withstand marine environments.
• Fit type: Universal Fit—confirm spline and gearcase compatibility before installing.

How do I install and maintain an RBX hub to maximize service life?

Installation follows standard prop hub replacement procedures: remove propeller, extract old hub, inspect shaft and keyway, fit new hub onto splines, and torque prop nut per manufacturer specs. Regularly inspect the hub and splines for wear or corrosion during seasonal maintenance and replace if excessive deterioration appears.

• Installation tip: clean shaft and keyway; lightly lubricate per OEM guidance.
• Maintenance: check for rubber cracking, spline corrosion, and secure prop nut.
• Replacement: the hub is reusable after prop damage but inspect carefully.
• Service interval: inspect at every prop removal or annual service.

Who is this for: The SOLAS RBX-102 suits boat owners, mechanics and fleet operators who need a rugged, non-plastic prop hub replacement that fits a broad set of Mercury/Mariner/Mercruiser, Yamaha, Honda and Force engines. It’s ideal for those seeking a durable, reusable hub that reduces vibration, protects the gearbox from shock loads, and fits specified 15-tooth spline gearcases across multiple model years.