Aftermarket Mercury 40HP, 50HP, 60HP EFI 4-Stroke 4-Cylinder CT/BigFoot Service Kit (0T409000-1B355222) (1C000001-1C453840 & Up) | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket replacement 40HP-60HP EFI Four-Stroke CT/BigFoot Service Kit - Kit / Reference: MERC-40-60-EFI-CT

New aftermarket major service kit for Mercury inline-four 40HP, 50HP and 60HP EFI FourStroke engines with Command Thrust/BigFoot 2.31:1 or 2.33:1 gearcases.

⚙️ Key Features

• Complete major scheduled-maintenance kit for the listed Mercury 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

• 4 × Spark plugs - Champion RA8HC

• 1 × Engine-oil filter - Mercury P/N 35-822626Q2

• 1 × Fuel filter - Mercury P/N 35-879885T

• 1 × Secondary 1.75-inch fuel filter - Mercury P/N 881540

• 1 × Engine-oil drain-plug gasket - Mercury P/N 828816

• 3 × gearcase drain-plug seals - Mercury P/N 26-830749

• 1 × 60°C thermostat - Mercury P/N 8M0117413

• 1 × Thermostat gasket - Mercury P/N 27-8M0177107 / 27-824853

• 1 × Complete water-pump repair kit - Mercury P/N 8M0100526

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Custom aftermarket service kit using current/superseding Mercury service components

OEM / Related Numbers:

• 35-822626Q2

• 35-879885T

• 881540

• 828816

• 26-830749

• 8M0117413

• 27-8M0177107

• 27-824853

• 8M0100526

• Champion RA8HC

Aftermarket / Verified Equivalents:

• Sawley's Select Marine Parts Mercury CT/BigFoot service kit

🚤 Compatibility

Commonly used on:

• Mercury outboard or sterndrive scheduled-maintenance applications

Typically suits:

• Engine / Drive models:

• 40HP EFI FourStroke inline four-cylinder

• 50HP EFI FourStroke inline four-cylinder

• 60HP EFI FourStroke inline four-cylinder

• Command Thrust/BigFoot 2.31:1 or 2.33:1 gearcase

• HP Range: 40HP - 60HP

• Year Range: Serial 0T409000-1B355222 and 1C000001-1C453840 and later as specified

• Model / Serial Identification: Standard small gearcases use a different water-pump configuration. Confirm serial number and gear ratio.

🔌 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