Aftermarket Mercury 250HP, 275HP, 300HP V8 4.6 Litre, 4-Stroke Service Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercury 250-300 HP 4.6 L V8 FourStroke Service Kit - Kit Reference: Application-matched 4.6 L V8 kit

Comprehensive aftermarket routine-maintenance kit assembled for 250-300 HP Mercury 4.6 L V8 EFI four-stroke outboard applications. It combines the ignition, cooling, filtration and drain-sealing components listed below so the main scheduled-service items can be renewed together.

⚙️ Key Features

Kit contents:

• 1 × Engine oil filter - Part Number: 35-8M0123025

• 1 × Under-cowl fuel filter - Part Number: 35-8M0106635

• 2 × Gearcase drain-plug seal - Part Number: 26-830749

• 8 × NGK spark plug - Part Number: LKAR7C-9 (Mercury 33-8M0204737 / 33-8M0135348)

• 1 × Thermostat - Part Number: 8M0162139

• 1 × Water-pump service kit - Part Number: 47-8M0142980

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Mercury/Quicksilver hyphenated and compact-number formats identify the same listed component

OEM / Related Numbers:

• 35-8M0123025

• 35-8M0106635

• 26-830749

• LKAR7C-9

• 8M0162139

• 47-8M0142980

Aftermarket / Verified Equivalents:

• Recmar, Sierra and Outboard Spares component-level replacements are available where the listed OEM reference is cross-matched

🚤 Compatibility

Commonly used on:

• Mercury 250 HP, 275 HP and 300 HP 4.6 L V8 FourStroke, Pro XS, SeaPro and Verado models using the listed service components

Typically suits:

• HP Range: 250-300 HP

• Engine Type: Mercury 4.6 L V8 EFI four-stroke outboard

• Year / Serial Range: Current V8 production families; verify engine serial and gearcase

• Identification: Confirm the complete engine model and serial number before ordering, particularly where shaft length, gear ratio or gearcase family changes the water-pump components.

🔌 Function

Provides the principal routine-service components used to maintain correct ignition, fuel delivery, cooling-water flow and fluid sealing. Renewing these items at the proper service interval helps support reliable starting, stable running, normal operating temperature and protection against contaminated oil or water-pump failure.

Common signs service is required:

• Hard starting, misfire, poor idle or reduced throttle response

• Restricted fuel flow, dirty filters or fuel starvation under load

• Weak or intermittent tell-tale flow, rising temperature or an overheat warning

• Cracked, hardened or missing impeller vanes

• Oil or gear-lubricant leakage from deteriorated drain-plug seals

• Scheduled annual, 100-hour or storage-return maintenance interval reached

📦 Condition

• Brand-new aftermarket service kit

• Supplied as new replacement components

• Supplied in suitable retail or equivalent packaging