Sierra 18-2060 Oil Seal for OMC Sterndrive and Cobra Stern Drive, White

The Sierra 18-2060 is a marine oil seal engineered for OMC Sterndrive and Cobra Stern Drive applications. It seals the driveshaft and exhaust housing area, helping keep water out and lubricant in around the drive's rotating shaft interfaces. Built by Sierra to meet or exceed original equipment quality standards, this white, round oil seal is a direct-fit replacement designed to restore a proper seal where the original unit has hardened, cracked, or begun to leak.

Sierra manufactures this seal to the same specifications as the original equipment it replaces, so installers can expect the same fit, sealing performance, and durability as the factory part. At just 0.02 pounds, it is a small, precise component that is easy to handle during a driveshaft or exhaust housing service, and it cross-references directly to several OEM and aftermarket part numbers used across OMC-based sterndrive service records.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2060
• Product Type: Oil Seal
• Material: Glass
• Color: White
• Shape: Round
• Weight: 0.02 pounds
• UPC: 030999310118
• Application: OMC Sterndrive and Cobra Stern Drive

Fitment

Designed for OMC Sterndrive and Cobra Stern Drive applications.

Replaces (OEM)

• GLM 86060
• Evinrude/Johnson 0321467
• Evinrude/Johnson 303804
• Mallory 9-76206
• OMC 321467
• OMC 303804

Frequently Asked Questions

What does the Sierra 18-2060 oil seal fit? The Sierra 18-2060 is designed for OMC Sterndrive and Cobra Stern Drive applications, sealing the driveshaft and exhaust housing area of the drive unit.

Is the Sierra 18-2060 a genuine OEM part or aftermarket? The 18-2060 is manufactured by Sierra as a replacement oil seal built to meet or exceed original equipment quality, rather than being sourced from OMC directly.

What OEM and cross-reference numbers does part 18-2060 replace? Part number 18-2060 cross-references to GLM 86060, Evinrude/Johnson 0321467, Evinrude/Johnson 303804, Mallory 9-76206, OMC 321467, and OMC 303804.

How much does the 18-2060 oil seal weigh? This Sierra oil seal weighs 0.02 pounds, reflecting its small, compact seal design.

What color and shape is the Sierra 18-2060 seal? It is a round, white oil seal, part number 18-2060.

What material is the Sierra 18-2060 oil seal made from? The 18-2060 is made from a glass material as listed for this Sierra oil seal.

Will the OMC 321467 seal work as a replacement for the Sierra 18-2060? Yes, OMC 321467 is one of the OEM numbers that the Sierra 18-2060 cross-references and is intended to replace.

What comes in the box with the 18-2060? The 18-2060 ships as a single oil seal unit, one per package.

Can the Sierra 18-2060 be used on Cobra Stern Drive units? Yes, the 18-2060 is intended for OMC Sterndrive and Cobra Stern Drive applications.

Is fitment guaranteed across all OMC-based drives with the 18-2060? The 18-2060 is fit specific, so it is important to confirm the existing OEM or cross-reference part number, such as OMC 321467 or 303804, before ordering.