MerCruiser Marine Sierra Exhaust Manifold Kit 4.3L V6 99746 44354 1985-2002

$650.93

40 in stock

Free Shipping to the Contiguous 48 US States
Category:

Product Details

New Sierra exhaust manifold and riser kit for MerCruiser V6 marine gas engines (GM/Chevrolet 4.3L 262 cu in). Fits most engines from 1985 to 2002 that use 4-inch outlet cast iron risers. Accepts all factory original accessories and brackets. Kit includes 2 manifolds, 2 risers, 2 lower water fittings, and all mounting bolts, plugs, and gaskets. Each purchase is for one engine kit.

Notes
  • Does not replace “dry joint” exhaust, stainless steel risers, or 3″ OD outlet risers (for 3″ ID hose).
  • If you have MerCruiser “one-piece” manifolds (807293, 807294), use the conversion kit instead.
  • If you also need 3″ tall riser spacer blocks, look for the Sierra 18-1908 listing.

Shipping Note: Due to the weight of these parts, this kit ships in multiple boxes. When you receive your tracking number, be sure to track it on the carrier’s website and find the “Other Packages in this Shipment” section to track all of the individual boxes. For standard/ground shipments, they may arrive on different days.

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

Cross ReferencePart Number
MerCruiserManifold: 
Riser:
99745, 99746, 99746A8, 99746A17
44354, 44354A3, 44354A9, 44354A10, 44354A13
807988, 807988A2, 807988A3, 807914A1
Osco MotorsManifold: 
Riser:
9745
4354
Barr MarineManifold: 
Riser:
MC-1-99746
MC-20-44354
Sierra MarineManifold: 
Riser:
18-1952-1
18-1976-1, 18-1976-2
Aqua PowerManifold: 
Riser:
5505
5706
GLM ProductsManifold: 
Riser:
Kit:
51220
51140
58222

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
SKUSIE181952K1
FitsMerCruiser 4.3L V6 1985-2002
TypeManifold Kit
UPC491546000508
Country of ManufactureTaiwan
ManufacturerSierra
Manufacturer Part Number2x18-1952-1,2x18-1976-2
MaterialCast Iron
WarrantyLimited Lifetime
Replaces99745, 99746, 44354, 807988, 807914
Part Number2x18-1952-1,2x18-1976-2
BrandSierra
Shipping Weight126 lbs
Shipping Dimensions20" x 18" x 16"
Item Weight107.4 lbs