Sierra 18-1950-1 MerCruiser Marine Exhaust Manifold 305 350 V8 77234 Port
By Sierra
PART #18-1950-1
WARRANTYLimited Lifetime
SHIPPING DIMS25" x 8" x 7"
$359.52 USD
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25 in stock
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Product Description
Sierra 18-1950-1 port side marine exhaust manifold. This manifold will replace most 1977 to 1982 MerCruiser (GM) 5.0L and 5.7L V8's (end rise) including models 198, 228, 250, 260, and 898. Comes with gasket kit and riser studs (see picture). Fits Port side only. Find the starboard side here. Each purchase is for one manifold.

Riser mating bolt dimensions are 3-1/16" (77.8mm) by 2-13/16" (71.4mm) bolt center-to-center.

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
MerCruiser77234, 77234A2
Osco Motors7234B
Barr MarineMC-1-77234
Sierra Marine18-1950-1
Aqua Power5508
GLM Products51237

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 1977-1982 5.0L 5.7L
Item Weight42.5 lbs
Made InTaiwan
Manufacturer #18-1950-1
MaterialCast Iron
Part Number18-1950-1
Replaces77234, 77234A2
Shipping Dims25" x 8" x 7"
Shipping Weight51 lbs
TypeExhaust Manifold
WarrantyLimited Lifetime