Sierra 18-1843 MerCruiser Dry Joint Exhaust Manifold V8 865735A02 5.0L 5.7L 6.2L


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Product Details

Sierra 18-1843 exhaust manifold for MerCruiser marine gas engines. Replaces dry joint V8 exhaust manifold on most 2003 and newer 5.0L, 5.7L, and 6.2L engines. Comes with new manifold-to-head gasket, bolts, and plugs. Does not include riser gasket. If you need one, please view available gaskets here. Each purchase is for one manifold. You will need two to replace both manifolds on a V8 engine.

This part is new and high-quality cast iron construction. To determine if this is the correct replacement for you, look on your current part for casting numbers and match them to the cross reference below:

Cross ReferencePart Number
MerCruiser865735A01, 865735A02, 865049T01, 864308T01
Osco Motors5735
Barr MarineMC-1-865735
Sierra Marine18-1843

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.

Additional information

Product Specifications
MaterialCast Iron
Shipping Weight43 lbs
TypeExhaust Manifold
Shipping Dimensions21" x 11" x 7"
Country of ManufactureTaiwan
FitsMerCruiser Dry Joint
Replaces865735A01, 865735A02, 865049T01, 864308T01
Part Number18-1843
Item Weight41.5 lbs
WarrantyLimited Lifetime
Manufacturer Part Number18-1843