Quicksilver Gimbal Bearing for MerCruiser Alpha One Gen II, Bravo & Vazer — 879194A01 OEM-fit, Smooth Shaft Alignment

Quicksilver 879194A01 is a direct-fit gimbal bearing engineered to replace the factory unit in MerCruiser Alpha One Gen II, Bravo and Vazer transom assemblies for reliable steering and driveline alignment.

This gimbal bearing fits MerCruiser Alpha One Gen II sterndrives (1998 and newer) and MerCruiser Bravo and Vazer transom assemblies (1996 and newer). Manufactured to Mercury Marine original equipment specifications, the 879194A01 restores precise shaft alignment and smooth rotation between the drive and hull transom, helping maintain drivetrain geometry and reducing wear on surrounding components. Follow your service manual for proper installation and use only MerCruiser-specified lubricants recommended by Quicksilver.

How does this gimbal bearing improve driveline performance?

The 879194A01 restores the bearing surface that supports and centers the drive shaft connection through the transom, reducing play and vibration. By returning original tolerances, it helps the sterndrive rotate smoothly and keeps thrust loads properly distributed across the transom assembly.

• Precision-made to match Mercury Marine OEM dimensions.
• Reduces steering vibration and shaft wobble when installed correctly.
• Helps extend life of universal joints, seals, and surrounding hardware.

Which MerCruiser models and years is this part compatible with?

This gimbal bearing is specified for MerCruiser Alpha One Gen II drives produced from 1998 onward and for MerCruiser Bravo and Vazer transom assemblies from 1996 onward. Always verify fitment against your boat's service manual or parts diagram before purchase.

• Alpha One Gen II: 1998 and newer sterndrives.
• Bravo & Vazer transom assemblies: 1996 and newer.
• Cross-check hull serial and parts diagram for exact application.

What should I know about installation and lubrication?

Installation requires following the MerCruiser service manual procedures to ensure correct alignment and preload. Quicksilver recommends using only MerCruiser-specified lubricants to protect the bearing surfaces and prevent premature wear.

• Install per your drive's service manual instructions.
• Use MerCruiser-approved grease and assembly lubricants only.
• Inspect surrounding seals, gimbal housing, and fasteners during replacement.

Why choose Quicksilver for this replacement part?

Quicksilver produces OEM-grade parts with extensive testing and strict quality control. The brand supports Mercury Marine original equipment standards and offers components engineered to match factory fit and function, giving you consistent performance and peace of mind on the water.

• Manufactured to Mercury Marine OEM specifications.
• Backed by decades of marine parts experience and rigorous testing.
• Designed for direct fit, minimizing modification or rework.

Who is this for: Boaters, mechanics, and marine technicians who maintain MerCruiser Alpha One Gen II, Bravo or Vazer sterndrives and need a factory-spec gimbal bearing to restore correct driveline alignment. This part is ideal for routine rebuilds, mid-life drive servicing, or when addressing vibration and play originating from the gimbal area. If you perform your own sterndrive maintenance, keep your service manual and MerCruiser-approved lubricants on hand to ensure a correct installation.