Sierra Distributor Gasket 18-0874-9, Replaces 16.50-00162, GM V-6 & V-8, Pack of 2

The Sierra 18-0874-9 is a marine distributor gasket engineered to seal the distributor housing on GM V-6 and V-8 marine engines. It is sold in a pack of two, providing a spare for a future service or covering a job that calls for replacing gaskets on both sides of a dual application. As a distributor gasket, its primary job is to maintain a proper seal between the distributor base and the engine block, preventing oil seepage and helping keep ignition timing components free of contamination during operation. Installing a fresh gasket whenever the distributor is removed for service, timing adjustment, or replacement is standard practice, since a used gasket can lose its sealing properties once disturbed. The 18-0874-9 is a direct fit for GM V-6 and V-8 marine engine applications and cross-references to the OEM number 16.50-00162. Keeping a correct-fit gasket on hand simplifies routine ignition system maintenance and helps avoid oil leaks around the distributor base after reinstallation. This is a lightweight, low-cost component that is easy to keep in a parts inventory for scheduled maintenance or unexpected repairs.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0874-9
• Product Type: Distributor Gasket
• Fitment: GM V-6 & V-8
• Package Quantity: Pack of 2
• Weight: 0.01 pounds
• Shape: Round
• UPC: 808282161798
• OEM Cross Reference: 16.50-05756, 16.50-00162

Fitment

• GM V-6 & V-8 marine engines

Replaces (OEM)

• 16.50-05756
• 16.50-00162

Frequently Asked Questions

What engines does the Sierra 18-0874-9 distributor gasket fit? The 18-0874-9 is designed for GM V-6 and V-8 marine engines.

How many gaskets come in one order of part 18-0874-9? This listing is a pack of 2 distributor gaskets, part number 18-0874-9.

What OEM part numbers does the 18-0874-9 gasket replace? It replaces OEM numbers 16.50-05756 and 16.50-00162.

Is the 18-0874-9 an OEM or aftermarket gasket? The 18-0874-9 is a Sierra-brand replacement gasket that cross-references to the OEM numbers 16.50-05756 and 16.50-00162, so it is an aftermarket equivalent rather than a factory-branded part.

How much does the Sierra 18-0874-9 gasket weigh? Each pack of the 18-0874-9 distributor gasket weighs 0.01 pounds.

What shape is the distributor gasket? The 18-0874-9 distributor gasket is round in shape, matching the distributor base it seals.

When should I replace the distributor gasket on my marine engine? Replace the 18-0874-9 gasket any time the distributor is removed from a GM V-6 or V-8 marine engine, since a disturbed gasket should not be reused.

Do I need any other parts to install the 18-0874-9 gasket? The 18-0874-9 pack includes only the distributor gasket itself; no other components are included.

Can the 18-0874-9 gasket be used on a single-engine repair? Yes, since it comes as a pack of 2, one gasket from the 18-0874-9 pack can be used for a single repair with a spare left over.

What is included in the box with the 18-0874-9 part? The box contains 2 distributor gaskets, part number 18-0874-9, and no additional hardware.