Sierra 18-1956-3 MerCruiser Marine Exhaust Manifold 2.5L 3.0L 99798 860235 83-89
By Sierra
PART #18-1956-3
WARRANTYLimited Lifetime
SHIPPING DIMS25" x 12" x 8"
$416.48 USD
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Product Description
New Sierra 18-1956-3 marine exhaust manifold for 1983 to 1989 MerCruiser 2.5L and 3.0L marine gas 4-cylinder engines. MerCarb carburetor. See cross reference below to determine if this will replace your existing manifold. Comes with gasket set and additional accessories seen in product photo.

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
MerCruiser99798A3, 99798A9, 99798A16, 860235A04
Marine Power600333
Sierra Marine18-1956-2, 18-1956-3

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.
FitsMerCruiser 4-Cylinder 1983-1989 with MerCarb
Item Weight45.9 lbs
Made InTaiwan
Manufacturer #18-1956-3
MaterialCast Iron
Part Number18-1956-3
Replaces99798A3, 99798A9, 99798A16, 860235A04, 600333
Shipping Dims25" x 12" x 8"
Shipping Weight49 lbs
TypeExhaust Manifold
WarrantyLimited Lifetime