Sierra 18-0954 Exhaust Elbow Gasket, Replaces 27-73814, Fits MerCruiser MIE 470, Pack of 2

The Sierra 18-0954 Exhaust Elbow Gasket seals the connection between the exhaust elbow and the engine exhaust manifold on applicable MerCruiser stern drive and inboard engines, preventing exhaust leaks and water intrusion at this joint. It is sold as a package of 2 gaskets, so both sides or a spare replacement are covered in a single purchase. The gasket is rectangular in shape and grey in color, cut to the flange dimensions of the OEM exhaust elbow gasket it replaces. Installation is a straightforward flat-gasket swap during exhaust elbow removal or servicing, and it is commonly replaced any time the exhaust elbow is pulled for inspection or when an exhaust leak or corrosion is found at the elbow-to-manifold joint. This gasket is designed to meet or exceed the specification of the original equipment part it replaces, giving a reliable seal without sourcing the original manufacturer part. It directly replaces OEM part numbers 27-73814, 27-738141, and 27-807218, and fits the MerCruiser MIE 470 engine application. Always match the gasket to your exhaust elbow's mounting pattern before ordering.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-0954
• Product Type: Exhaust Elbow Gasket
• Package Quantity: 2 (sold as a pair)
• Shape: Rectangular
• Color: Grey
• Weight: 0.04 pounds
• UPC: 030999751980
• OEM Cross Reference: 27-73814, 27-738141, 27-807218
• Fitment: MerCruiser MIE 470

Fitment

• MerCruiser MIE 470

Replaces (OEM)

• 27-73814
• 27-738141
• 27-807218

Frequently Asked Questions

What does the Sierra 18-0954 gasket fit? It fits the MerCruiser MIE 470 engine application, sealing the joint between the exhaust elbow and the exhaust manifold.

How many gaskets come in a pack? The Sierra 18-0954 is sold as a package of 2 exhaust elbow gaskets.

Is the Sierra 18-0954 a direct replacement for OEM 27-73814? Yes, the 18-0954 gasket directly replaces OEM part numbers 27-73814, 27-738141, and 27-807218.

What are the OEM cross-reference numbers for this gasket? OEM cross-reference numbers 27-73814, 27-738141, and 27-807218 all correspond to the Sierra 18-0954 exhaust elbow gasket.

What color and shape is the 18-0954 gasket? It is a grey, rectangular gasket sized to match the OEM exhaust elbow flange it replaces.

How much does the Sierra 18-0954 gasket weigh? The gasket weighs 0.04 pounds.

When should I replace this exhaust elbow gasket? Replace the 18-0954 gasket whenever the exhaust elbow is removed for service or when a leak or corrosion is found at the elbow-to-manifold joint.

Is installation of the 18-0954 gasket straightforward? Yes, it is a flat gasket that installs during normal removal and reinstallation of the exhaust elbow, requiring no special tools beyond what the elbow service itself calls for.

Does the Sierra 18-0954 meet OEM standards? The Sierra 18-0954 gasket is designed to meet or exceed the specification of the original equipment part it replaces.

What is included when I order the 18-0954? Ordering the Sierra 18-0954 gets you 2 exhaust elbow gaskets, enough for a complete gasket swap or a spare.

What is the UPC for the Sierra 18-0954 gasket? The UPC for the Sierra 18-0954 Exhaust Elbow Gasket is 030999751980.