Description
SIERRA MerCruiser 4.3L V6 Dry-Joint Exhaust Manifold – 18-1842
A cast exhaust manifold designed for MerCruiser dry-joint V6 systems. The dry-joint layout separates the exhaust-gas sealing surface from the cooling-water transfer path to reduce the chance of water entering a cylinder from a failed riser gasket.
- Application: MerCruiser GM V6 262 CID / 4.3L engines from 2002 and newer using the dry-joint exhaust arrangement and OEM 864612T01.
- Component/function: Dry-joint exhaust manifold
- Key specification: Engine: GM V6 262 CID / 4.3L
- OEM / aftermarket cross-reference: MerCruiser: 864612T01
- 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.
Application: MerCruiser GM V6 262 CID / 4.3L engines from 2002 and newer using the dry-joint exhaust arrangement and OEM 864612T01.
Specifications
- Component: Dry-joint exhaust manifold
- Engine: GM V6 262 CID / 4.3L
- Configuration: Port or starboard as applicable
- Cooling transfer: External manifold-to-riser
- OEM reference: 864612T01
Interchange / Replaces
- MerCruiser: 864612T01
Related Products
- Cross-sell / related: SIE-18-0720 | SIE-18-0721 | SIE-18-0722
- Relationship notes: Sierra specifies 18-0720 closed, 18-0721 open and 18-0722 restricted dry-joint riser gaskets; select the gasket required by the cooling circuit.


Reviews
There are no reviews yet.