Sierra Link Belt Gimbal Bearing 18-2100, Replaces 3853807, Fits OMC/Volvo 3.0L-8.2L (1994-1998)

The Sierra 18-2100 is a link belt gimbal bearing built to support the drive shaft where it passes through the transom assembly on OMC and Volvo Penta sterndrive setups. Constructed of metal, this is a non-sealed design, which means it can be greased for ongoing lubrication rather than being a sealed, grease-and-forget unit. The bearing measures 4 x 4 x 2 inches overall with a 2 inch outside diameter, and weighs 1.3 pounds.

This bearing is a direct replacement for OMC part number 3853807 and is intended for OMC/Volvo engines in the 3.0L, 4.3L, 5.0L, 5.7L, and 7.4L range (1994-1998), the 5.8L (1994-1996), and the 8.2L (1998). Installers use it during routine transom and gimbal housing service, or when replacing a worn or failing original bearing that is causing drive shaft vibration or play.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2100
• Product Type: Gimbal Bearing
• Design: Link Belt, non-sealed (greasable)
• Material: Metal
• Item Dimensions: 4 x 4 x 2 inches
• Outside Diameter: 2 inches
• Weight: 1.3 pounds
• Compatible Lubricant: Grease
• UPC: 030999310262

Fitment

• OMC/Volvo 3.0L, 4.3L, 5.0L, 5.7L, 7.4L (1994-1998)
• OMC/Volvo 5.8L (1994-1996)
• OMC/Volvo 8.2L (1998)

Replaces (OEM)

• 3853807

Frequently Asked Questions

What does the Sierra 18-2100 gimbal bearing fit? The Sierra 18-2100 fits OMC/Volvo engines in the 3.0L, 4.3L, 5.0L, 5.7L, and 7.4L range for 1994-1998, the 5.8L for 1994-1996, and the 8.2L for 1998.

Is 18-2100 a direct replacement for OMC 3853807? Yes, Sierra 18-2100 is a direct replacement for OMC part number 3853807.

Is this gimbal bearing sealed or can it be greased? The 18-2100 is a non-sealed link belt design, meaning it can be greased for ongoing lubrication rather than being a maintenance-free sealed unit.

What material is the 18-2100 gimbal bearing made of? It is made of metal, matching the construction of the original equipment bearing it replaces.

What are the dimensions of the Sierra 18-2100? The bearing measures 4 x 4 x 2 inches overall with a 2 inch outside diameter.

How much does the 18-2100 gimbal bearing weigh? It weighs 1.3 pounds.

What type of bearing design is the 18-2100? It is a link belt gimbal bearing, part number 18-2100, designed for the drive shaft transom support on compatible OMC/Volvo sterndrives.

Does the 18-2100 gimbal bearing need to be greased regularly? Yes, since it is a non-sealed design, the 18-2100 should be greased periodically as part of routine sterndrive maintenance.

Which engine sizes does the 18-2100 cover? Coverage spans 3.0L, 4.3L, 5.0L, 5.7L, 7.4L, 5.8L, and 8.2L OMC/Volvo engines, with the specific model years noted in the fitment listing for 18-2100.

When would I need to replace this gimbal bearing? The 18-2100 gimbal bearing is typically replaced during transom and gimbal housing service, or when the original bearing is worn and causing drive shaft vibration or play.

Is the Sierra 18-2100 an OEM or aftermarket part? The 18-2100 is an aftermarket bearing manufactured to match the fit and function of the original OMC 3853807 bearing it replaces.

What is included when I order the 18-2100? Ordering 18-2100 gets you one Sierra link belt gimbal bearing, ready for installation in place of OMC part 3853807.