Sierra Water Pump Gasket 18-0415-9, Pkg of 2, Replaces OEM 27-F523031, Chrysler Inboard

The Sierra 18-0415-9 is a water pump gasket sold in a package of 2, made for Chrysler inboard marine engine water pumps. This gasket creates the seal between the water pump housing and its mating surfaces, preventing raw water or coolant leaks at the pump. Because a worn or torn gasket is one of the most common causes of water pump leaks and reduced cooling performance, replacing it whenever the pump is serviced or rebuilt helps keep the cooling circuit sealed and functioning correctly.

Each package contains 2 gaskets, so a single purchase covers a complete pump reseal or gives you a spare for a future service. The part is lightweight, with each package weighing 0.02 pounds, consistent with a thin, precision-cut gasket profile. It is cross-referenced to OEM part number 27-F523031, letting owners confirm fit against the original equipment number before ordering. The gasket is identified by UPC 808282161583 and is intended as a direct fit for the Chrysler inboard water pump application it is cataloged under, so no cutting or trimming should be needed during installation.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0415-9
• Product Type: Water Pump Gasket
• Package Quantity: Pkg of 2
• Weight: 0.02 pounds
• UPC: 808282161583
• Application: Chrysler Inboard Water Pump
• Replaces (OEM): 27-F523031

Fitment

Chrysler inboard marine engine water pumps.

Replaces (OEM)

• 27-F523031

Frequently Asked Questions

What does the Sierra 18-0415-9 water pump gasket fit? The 18-0415-9 is cataloged for Chrysler inboard marine engine water pumps, sealing the pump housing to its mating surface.

How many gaskets come in a package of 18-0415-9? Each package of the Sierra 18-0415-9 contains 2 water pump gaskets.

Is Sierra 18-0415-9 the same as OEM part 27-F523031? Yes, the Sierra 18-0415-9 water pump gasket is cross-referenced to replace OEM part number 27-F523031.

How much does the 18-0415-9 gasket package weigh? The package weighs 0.02 pounds, reflecting the thin, precision-cut profile typical of a water pump gasket.

Is this a genuine Sierra part? Yes, 18-0415-9 is a genuine Sierra water pump gasket, identified by UPC 808282161583.

Do I need to replace the gasket every time I service the water pump? A fresh gasket like the 18-0415-9 should be installed any time the water pump housing is removed, since reusing a compressed gasket can allow leaks.

What is included when I order 18-0415-9? The package includes 2 water pump gaskets for the Chrysler inboard water pump application; no other hardware is included.

Is 18-0415-9 sold individually or only as a pair? Sierra sells this gasket as a package of 2 under part number 18-0415-9, not as a single individual gasket.

What OEM number should I check against before ordering 18-0415-9? Check your water pump housing against OEM number 27-F523031, which the 18-0415-9 gasket is designed to replace.

What is the UPC for the Sierra 18-0415-9 gasket? The UPC for the Sierra 18-0415-9 water pump gasket package is 808282161583.