6C Aftermarket Yamaha 2-Stroke Major Service Kit without Oil | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 6C-Family Two-Stroke Major Service Kit with Gear Oil - Kit / Reference: 6C-MAJOR-WITH-OIL

New aftermarket major service kit for Yamaha 6C-family two-stroke outboards, supplied with one litre of 80W-90 marine gear oil.

⚙️ Key Features

• Complete major scheduled-maintenance kit for the listed Yamaha engine family

• Matched cooling, ignition, fuel, lubrication and sealing components

• Individual service parts identified by OEM or verified cross-reference number

• Designed to simplify annual or hour-based scheduled maintenance

• Engine model and serial number must be confirmed before installation

🧰 Kit / Assembly Contents

• 1 × Complete water-pump repair kit - Yamaha P/N 6G1-W0078-A1

• 2 × Spark plugs - NGK BR7HS-10

• 1 × Fuel strainer/remote-oil filter - Yamaha P/N 646-24251-01

• 2 × Gearcase drain-plug seals - Yamaha P/N 90430-08020

• 1 × Thermostat - Yamaha P/N 6E5-12411-02

• 1 × Cylinder-head-cover gasket - Yamaha P/N 6G1-11193-A1

• 1 × Lower-unit anode - Yamaha P/N 6G1-45251-03

• 1 × 1-litre bottle of 80W-90 marine gear oil - lubricant brand/package may vary

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Custom aftermarket kit using the listed Yamaha service components

OEM / Related Numbers:

• 6G1-W0078-A1

• 646-24251-01

• 90430-08020

• 6E5-12411-02

• 6G1-11193-A1

• 6G1-45251-03

• NGK BR7HS-10

Aftermarket / Verified Equivalents:

• Sawley's Select Marine Parts 6C-family major kit with gear oil

🚤 Compatibility

Commonly used on:

• Yamaha outboard or sterndrive scheduled-maintenance applications

Typically suits:

• Engine / Drive models:

• 6C, 6CMHL and 6CMHS (1985-2014)

• 6D through 6DEM (1984-2007)

• 8C (1985-2012)

• 8F (2016-2018)

• 8J (1986)

• 8M (1997-1998)

• 8N (1984)

• HP Range: 6HP - 8HP

• Year Range: 1984 - 2018 across the listed model families

• Model / Serial Identification: The supplied title was corrected: this is the oil-included version.

🔌 Function

This scheduled-maintenance kit groups the cooling, ignition, fuel, lubrication and corrosion-control components required for the listed engine family. Replacing the matched consumables together helps restore reliable starting, correct cooling-water flow, clean fuel and oil circulation, and leak-free drain and thermostat joints.

Common signs that service is due:

• The annual, 100-hour or manufacturer-specified service interval is due

• The engine's previous service history is unknown

• Cooling-water flow is weak or the engine runs hotter than normal

• Spark plugs are fouled, filters are restricted or starting quality has deteriorated

• Drain seals, pump components or sacrificial anodes show corrosion, wear or leakage

📦 Condition

• New aftermarket replacement service kit

• Brand new

• Supplied in original or equivalent packaging