Sierra 18-2944-9 Seal Ring Gasket - Fits R, MR, Alpha and Bravo Drives - Pack of 2

The Sierra 18-2944-9 is a seal ring gasket sold in a pack of two, designed as a round quad-ring seal for marine sterndrive applications. It fits R, MR, Alpha, and Bravo drives, making it a common replacement item for boat owners servicing their outdrive housing. The quad ring shape provides a reliable seal against water and fluid intrusion at the drive interface, helping prevent leaks that can lead to corrosion or lubricant loss.

Each pack contains two seal rings, allowing for a complete service on both mating surfaces or providing a spare for future maintenance. As a Sierra part, it is built to match OEM fit and function for the drives it is designated for. The compact, lightweight design (0.01 pounds per pack) makes it an inexpensive but important part of routine outdrive maintenance, and it is identified by UPC 808282164317 for easy verification when ordering.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2944-9
• Category: Volvo Penta Timing Seal
• Shape: Round
• Package Quantity: Pack of 2
• Fits: R, MR, Alpha and Bravo drives
• Weight: 0.01 pounds
• UPC: 808282164317
• GTIN: 00808282164317

Fitment

• R drives
• MR drives
• Alpha drives
• Bravo drives

Frequently Asked Questions

What is the Sierra 18-2944-9 seal ring gasket used for? It is a seal ring gasket used at the outdrive housing to seal against water and fluid intrusion, and the Sierra 18-2944-9 is sold in a pack of two for this purpose.

What drives does the 18-2944-9 fit? The Sierra 18-2944-9 fits R, MR, Alpha, and Bravo drives.

How many seal rings come in one package? One package of part number 18-2944-9 contains two seal ring gaskets.

What shape is the Sierra 18-2944-9 seal ring? It is a round seal ring, consistent with a quad-ring style seal.

How much does a pack of the 18-2944-9 weigh? A pack of the Sierra 18-2944-9 seal ring gasket weighs 0.01 pounds.

Is the 18-2944-9 a genuine Sierra part? Yes, part number 18-2944-9 is manufactured and sold by Sierra.

What is the UPC for the Sierra 18-2944-9? The UPC for this seal ring gasket pack is 808282164317.

Can I buy the 18-2944-9 as a single seal ring? No, the Sierra 18-2944-9 is sold only as a pack of two seal rings.

Does the Sierra 18-2944-9 fit Alpha One or Bravo outdrives? Yes, the 18-2944-9 is listed as fitting Alpha and Bravo drives, along with R and MR drives.

What type of seal is included with part number 18-2944-9? The pack includes quad ring style seal rings under Sierra part number 18-2944-9.