Aftermarket Mercury Service Kit Long Shaft 40HP EFI Serial Range (1B227000-1B355027) (1C000001-1C456300 & Up) | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercury 40HP EFI Long-Shaft Three-Cylinder Service Kit - Kit Reference: Application package for long-shaft serial groups

A major service package for long-shaft Mercury 40HP EFI three-cylinder four-stroke outboards. It uses the 821354A04 water-pump kit and includes both the inline fuel filter and replaceable fuel-filter element.

⚙️ Key Features

• Application-specific major service package

• Exact serial-range separation prevents mixing incompatible fuel filters, thermostats or gearcase pump parts

• Includes engine and gearcase drain-plug sealing components where applicable

• Includes the correct spark-plug type and quantity for the listed engine family

• Water-pump components match the stated standard, BigFoot or Command Thrust gearcase

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 821354A04 → Complete water-pump kit for the listed 40HP EFI gearcase

• 35-8M0149607 → Current replaceable fuel-filter element reference

OEM / Related Numbers:

• 27-8M0177107 / 27-824853

• 825212T02

• 35-822626Q2

• 828816

• Champion RA8HC

• 35-879885T

• 35-8M0149607

• 821354A04

• 12-191833

Aftermarket / Verified Equivalents:

• Sawley's Select application-specific aftermarket service package

Included Components:

• 1 × Thermostat gasket - 27-8M0177107 / 27-824853

• 1 × Thermostat - 825212T02

• 1 × Oil filter - 35-822626Q2

• 1 × Engine-oil drain gasket - 828816

• 3 × Champion RA8HC spark plugs

• 1 × Fuel filter - 35-879885T

• 1 × Fuel-filter element - 35-8M0149607

• 1 × Water-pump kit - 821354A04

• 2 × Gear-oil screw seals - 12-191833

Important Fitment Notes:

• The verified long-shaft 1C-prefix split begins at 1C043417. Serial 1C000001-1C043416 is the short-shaft range.

🚤 Compatibility

Commonly used on:

• Mercury 40HP EFI Long-Shaft Three-Cylinder outboard service applications

Typically suits:

• Engine models:

• Mercury 40HP EFI three-cylinder long-shaft standard gearcase

• Mercury 40HP EFI long-shaft remote-control variants

• HP Range: 40HP

• Engine Type: EFI inline-three four-stroke outboard

• Year Range: Serial-specific production group

• Serial Range: 1B227000-1B355027 and 1C043417-1C456299 for verified long-shaft production

🔌 Function

The service kit groups the routine ignition, lubrication, fuel-system, cooling-system and gearcase consumables required for a major scheduled service. Replacing the listed components helps maintain reliable starting, correct operating temperature, clean fuel delivery, adequate cooling-water flow and secure engine and gearcase sealing.

Common signs service is due:

• Hard starting, rough idle or misfire from worn or fouled spark plugs

• Restricted fuel delivery or unstable engine speed from a contaminated filter

• Engine temperature runs high because the thermostat or water pump is deteriorated

• Low oil pressure, dirty engine oil or a restricted oil filter on four-stroke engines

• Water or lubricant leakage from reused drain-plug seals

• Reduced cooling-water discharge or damaged impeller vanes

📦 Condition

• Brand new aftermarket service kit

• New and unused components

• Supplied in manufacturer or equivalent protective packaging