Aftermarket Mercury 4.0HP & 5.0HP 2-Stroke Service Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercury 4-5 HP Two-Stroke Service Kit - Kit Reference: Application-matched portable two-stroke kit

Comprehensive aftermarket routine-maintenance kit assembled for 4-5 HP Single-cylinder portable carburetted two-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 × NGK spark plug - Part Number: BP7HS-10

• 1 × Inline fuel filter - Part Number: 35-16248 (superseded by 35-8M0157133)

• 1 × Water-pump repair kit - Part Number: 16159A1 (related current 8M0155395 and 16159A03)

• 2 × Gearcase drain-plug seal - Part Number: 12-191833

🔄 Supersession & Cross Reference

OEM Supersession Chain:

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

OEM / Related Numbers:

• BP7HS-10

• 35-16248

• 16159A1

• 12-191833

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/Mariner 4 HP and 5 HP portable two-stroke outboards using the 16159-series water pump

Typically suits:

• HP Range: 4-5 HP

• Engine Type: Single-cylinder portable carburetted two-stroke outboard

• Year / Serial Range: Model and serial controlled; verify pump housing family

• 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