Sierra 18-1953-2 MerCruiser Marine Exhaust Manifold 350 V8 87114 860246 1983-02


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Product Details

New exhaust manifold for MerCruiser 1983 through 2003 5.0L (305 cu. in.) and 5.7L (350 cu. in.) V8 marine gas engines (GM/Chevrolet small block). Fits MerCruiser models 200, 230, 260, 320, 300, and 898. Does not replace newer dry-joint style manifolds or older log style manifolds. This manifold is a center rise style, will fit either side of the engine, and accepts all original mounting brackets. Comes with gaskets, lower water fitting, mounting bolts, and all necessary plugs. Each purchase is for one manifold.

Riser mating bolt dimensions are 3-7/16″ (87.3mm) by 3-1/16″ (77.8mm) 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
MerCruiser87114, 87114A8, 87114A19, 87114A30, 860246, 860246A3, 860246A7, 860246A9, 860246A10, 860246A15, 860246 C, 860246Q11
Osco Motors7114B2
Barr MarineMC-1-87114
Sierra Marine18-1953-2
Aqua Power5500
GLM Products51230

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
TypeExhaust Manifold
FitsMerCruiser 5.0L and 5.7L 1983-2002
Replaces87114, 87114A19, 86024, 86024A10
Shipping Dimensions22" x 10" x 7"
Shipping Weight50 lbs
Country of ManufactureUnited States
WarrantyLimited Lifetime
Part Number18-1953-2
Item Weight42.7 lbs
Manufacturer Part Number18-1953-2
MaterialCast Iron