Description
SIERRA MerCruiser 3 in. Exhaust Riser Kit – 18-1908K
A matched exhaust riser kit supplied with the hardware required to add approximately 3 inches of exhaust height to compatible two-piece MerCruiser manifold systems.
- Confirm the mating pattern, cooling-passage arrangement and engine application before installation.
- Component/function: Exhaust riser kit
- Key specification: Riser height: 3 in.
- OEM / aftermarket cross-reference: GLM: 50310; MerCruiser: 807476A6, 93320A13, 93320A2, 93320A3, 93320A5, 93320A6
- Use the applicable OEM service procedure and inspect mating components during installation.
This is an application-specific marine service part. Confirm the engine or sterndrive model, serial range and OEM reference before installation.
Specifications
- Component: Exhaust riser kit
- Riser height: 3 in.
- Engine family: MerCruiser V6, carbureted/TBI
- Serial range: Through 0M614999
Interchange / Replaces
- GLM: 50310
- MerCruiser: 807476A6, 93320A13, 93320A2, 93320A3, 93320A5, 93320A6





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