Sierra 18-4347-1 Exhaust Manifold Gasket Set for GM 175/185/205 HP 229 and 262 CID Engines

The Sierra 18-4347-1 Exhaust Manifold Gasket Set is a complete gasket kit for GM 229 and 262 cid marine engines rated 175, 185, and 205 horsepower. It supplies every gasket needed to reseal the exhaust manifold to the cylinder head and the exhaust elbow to the manifold, so the whole exhaust-side seal can be renewed in one job rather than sourcing individual gaskets separately.

The set contains two Exhaust Elbow Mounting Gaskets (Sierra part 18-0897, O.E. 27-41813-1) and two Exhaust Manifold to Cylinder Head Gaskets (Sierra part 18-2909, O.E. 27-99757), giving full coverage for both mounting joints in the exhaust path. The gasket material is white. Sierra engineers this set to meet or exceed the specifications of the original equipment gaskets it replaces, and Sierra supplies OEM engine manufacturers and boat builders with parts of the same quality every day.

This gasket set is intended for GM 175, 185, and 205 horsepower marine engines built on the 229 and 262 cubic inch displacement blocks.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-4347-1
• Product Type: Exhaust Manifold Gasket Set
• Engine Fitment: GM 175, 185, 205 HP (229 and 262 CID)
• Color: White
• UPC: 808282236731
• Weight: 0.21 pounds
• Kit Contents: 2x Exhaust Elbow Mounting Gasket (part 18-0897), 2x Exhaust Manifold to Cylinder Head Gasket (part 18-2909)
• OEM Cross Reference: 27-41813-1, 27-99757

Fitment

• GM 175, 185, 205 HP engines (229 and 262 CID)

Replaces (OEM)

• 27-41813-1
• 27-99757

Frequently Asked Questions

What is included in the Sierra 18-4347-1 exhaust manifold gasket set? The set includes two Exhaust Elbow Mounting Gaskets (part 18-0897) and two Exhaust Manifold to Cylinder Head Gaskets (part 18-2909), covering both mounting joints in the exhaust path.

What engines does this gasket set fit? Part 18-4347-1 fits GM marine engines rated 175, 185, and 205 horsepower on the 229 and 262 cubic inch displacement blocks.

Will 18-4347-1 fit other GM cid engines besides 229 and 262? No, this gasket set is specified for GM 229 and 262 cid engines rated 175, 185, and 205 HP only.

What OEM part numbers does 18-4347-1 cross-reference? The gaskets in this set cross-reference OEM numbers 27-41813-1 (exhaust elbow mounting gasket) and 27-99757 (exhaust manifold to cylinder head gasket).

How many gaskets come in the box? Two of each type are included: two exhaust elbow mounting gaskets and two exhaust manifold to cylinder head gaskets, for a total of four gaskets in the 18-4347-1 set.

What is the difference between the two gaskets in this set? Part 18-0897 seals the exhaust elbow to the manifold, while part 18-2909 seals the exhaust manifold to the cylinder head; both are included together in the 18-4347-1 set.

How much does the 18-4347-1 gasket set weigh? The Sierra 18-4347-1 exhaust manifold gasket set weighs 0.21 pounds.

What color is the gasket material? The gaskets in the Sierra 18-4347-1 set are white.

Is the Sierra 18-4347-1 gasket set genuine Sierra or an aftermarket copy? It is a genuine Sierra-manufactured part, engineered to meet or exceed the specifications of the original equipment gaskets it replaces.

Does this kit cover both the exhaust elbow and the manifold-to-head joint? Yes, the 18-4347-1 set includes gaskets for both the exhaust elbow mounting joint and the exhaust manifold to cylinder head joint.

What is the UPC for this gasket set? The Sierra 18-4347-1 exhaust manifold gasket set has UPC 808282236731.