Sierra MerCruiser 3.0 Exhaust Manifold 1990+ 806867A3 860235A03 18-1966 18-1966-1
SKU: 65878640545

Sierra MerCruiser 3.0 Exhaust Manifold 1990+ 806867A3 860235A03 18-1966 18-1966-1

Sale price$293.12 Regular price$325.69
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Description

Sierra MerCruiser 3.0 Exhaust Manifold 1990+ 806867A3 860235A03 18-1966 18-1966-1MerCruiser EXHAUST MANIFOLD by Sierra Manifold for 3. 0 Liter Engines 1990 and Newer using the "MERCARB" This has a single idle air adjusting screw Includes: Gaskets Pipe plugs Fuel line Mounting hardware and Instructions Riser mounting flange is square bolt pattern (2 13 16" x 3 1 16" bolt centers) ReplacesMercury: 806867A3, 806867A9, 806867A12 and 815560A5, 815560A7 Replaces OEM NEW PART NUMBER 860235A03 and OLD NUMBER 806867a3 Old Sierra Part

MerCruiser EXHAUST MANIFOLD by Sierra

Manifold for 3.0 Liter Engines 1990 and Newer using the "MERCARB"

This has a single idle air adjusting screw

Includes:
 • Gaskets
 • Pipe plugs
 • Fuel line
 • Mounting hardware and Instructions

Riser mounting flange is square bolt pattern (2-13/16" x 3-1/16" bolt centers)

Replaces
Mercury: 806867A3, 806867A9, 806867A12 and 815560A5, 815560A7   Replaces OEM NEW PART NUMBER   860235A03 and OLD NUMBER   806867a3   Old Sierra Part Number: 18-1966 superseded to New Sierra Part Number: 18-1966-1

Sierra manifolds are painted, packaged and leak tested.


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SKU: 65878640545

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Shawn
Alexandria, US
★★★★★ 5
Great Product
Size: 13, Color: Black Full Grain
2nd Johnston & Murphy comfortable and stylish.
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Reviewed in the United States on December 26, 2025
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Margaret
Draper, US
★★★★★ 5
Great shoes for business casual, corporate travel
Size: 8.5, Color: White Full Grain
Fit true to size
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Reviewed in the United States on December 30, 2025
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Jocko
Grantham, US
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
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Reviewed in the United States on December 28, 2025
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DALIA ALVAREZ
Pawtucket, US
★★★★★ 5
Great shoes
I like these shoes they are comfortable, and look great. Good quality, it fits to its size.
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Reviewed in the United States on May 19, 2025
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Leonardo Perez
Chelsea, US
★★★★★ 1
Mal presentado
Size: 9, Color: Black Full Grain
Un zapato llego con cosido defectuoso
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Reviewed in the United States on October 29, 2025

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