Sierra Water Pump Gasket 18-0345, GLM 37490 Cross Reference, Chrysler Inboard

The Sierra Water Pump Gasket, part number 18-0345, is a round gasket designed for Chrysler inboard water pump applications. It seals the water pump housing to prevent coolant or raw water leakage at the mating surface, protecting the pump and surrounding engine components from moisture intrusion and pressure loss during operation.

This gasket is sold as a single unit and is intended to be replaced any time the water pump housing is removed or serviced, since reusing an old gasket can allow leaks to develop even if it looks intact. It carries the Sierra brand name and part number 18-0345, and cross-references to GLM number 37490, so buyers who know either numbering system can confirm they are ordering the correct gasket for their Chrysler inboard water pump.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0345
• Product Type: Water Pump Gasket
• Application: Chrysler Inboard Water Pumps and Impellers
• Shape: Round
• Unit Count: 1
• Weight: 0.01 pounds
• UPC: 808282145798
• GLM Cross Reference Number: 37490

Fitment

• Chrysler inboard water pumps

Replaces (OEM)

• GLM 37490

Frequently Asked Questions

What is Sierra part number 18-0345? It is a round water pump gasket made by Sierra for Chrysler inboard water pump applications, sold as a single gasket.

Does GLM number 37490 match this gasket? Yes, GLM number 37490 cross-references directly to Sierra 18-0345, so either number identifies the same water pump gasket.

How much does the 18-0345 gasket weigh? The Sierra 18-0345 water pump gasket weighs 0.01 pounds.

What shape is the Sierra 18-0345 gasket? It is round in shape, matching the mating surface of the Chrysler inboard water pump housing.

How many gaskets come in a package of 18-0345? Each package of Sierra 18-0345 contains a single water pump gasket, listed as a unit count of 1.

Should I replace the gasket every time I remove the water pump? Yes, the Sierra 18-0345 gasket should be replaced whenever the Chrysler inboard water pump housing is removed, since a reused gasket can leak even if it appears undamaged.

What engine application is the 18-0345 gasket used for? Sierra 18-0345 is used on Chrysler inboard water pump and impeller assemblies.

Is 18-0345 a genuine Sierra part? Yes, 18-0345 is the Sierra manufacturer part number for this water pump gasket, not a generic aftermarket substitute.

What is the UPC for the Sierra 18-0345 gasket? The UPC for the Sierra 18-0345 water pump gasket is 808282145798.

Can I use the GLM 37490 number to order this part? Yes, GLM 37490 is the cross-reference number for Sierra 18-0345, so referencing either number will get you the correct gasket.