KPALAG Fuel Filter Cup Wrench for Yamaha F150–F350 & 2.6L/3.3L (2006+) — Open-Slot Nickel-Plated 40Cr Steel

KPALAG's upgraded fuel filter cup wrench is a corrosion-resistant, open-design tool made to remove and install Yamaha 6P3-WS24A fuel/water separator cups for 2006–current F150–F350 and 2.6L/3.3L 4-stroke engines.

This wrench is engineered to speed routine maintenance on compatible Yamaha outboards by combining hardened 40Cr steel with nickel plating and an open-slot profile that lets you work around hoses and fittings. It replaces part number YB-ACC04 and fits the factory-style 6P3-WS24A filter cup, delivering repeatable grip, impact resistance, and straightforward access when servicing fuel/water separators.

Will this wrench fit my Yamaha outboard and filter cup?

The KPALAG wrench is built to fit Yamaha 4-stroke outboards from 2006 to current in the 150–350 HP range and the 2.6L and 3.3L engine families. It specifically matches the dimensions of the 6P3-WS24A filter cup; it is not a universal cup wrench and should be used only with that filter cup design.

• Compatible with Yamaha F150–F350 4-strokes (serial 0406 and later).
• Designed for 2.6L and 3.3L 4-stroke Yamaha models from 2006 onward.
• Works only with the 6P3-WS24A fuel/water separator cup.
• Replaces part number: YB-ACC04.

How does the wrench’s open design help when changing the filter cup?

The upgraded open-slot silhouette lets the tool slide past fuel lines, clamps or other obstructions so you can engage the cup without disconnecting adjacent hoses. That design reduces the steps and time needed for routine filter replacement and lowers the chance of accidental fuel spills or line disturbance.

• Open shape passes over hoses and fittings for direct cup access.
• Simplifies removal and installation without hose disassembly.
• Speeds maintenance and reduces workspace clutter under the cowling.

What materials and construction make this wrench durable?

KPALAG uses 40Cr alloy steel with heat treatment and a nickel-plated finish to provide strength, impact resistance, and improved corrosion resistance in marine environments. The hardened construction holds up under repeated use and torque from hand or small-handled tools.

• 40Cr steel core for toughness and wear resistance.
• Heat treated to increase hardness and longevity.
• Nickel plating helps resist saltwater corrosion.
• Single-piece construction reduces the risk of deformation.

What’s included and how do I use the wrench safely?

The package contains one KPALAG Fuel Filter Cup Wrench (replacement part YB-ACC04). Use it with the engine secured and fuel system depressurized; wear gloves and eye protection, and follow Yamaha service recommendations when servicing fuel components.

• Package: 1 × Fuel Filter Cup Wrench (YB-ACC04).
• Use with the 6P3-WS24A filter cup only.
• Work with engine off and fuel pressure relieved.
• Apply steady, even torque—avoid sudden impact tools to protect fittings.

Who is this for? This KPALAG wrench is for boat owners, mechanics, and marine technicians who service Yamaha 4-stroke outboards (150–350 HP, 2.6L/3.3L) and want a dedicated, corrosion-resistant tool that fits the OEM-style 6P3-WS24A filter cup. It’s especially useful for anyone who needs faster, cleaner filter changes in cramped engine compartments without disconnecting hoses or risking damage to adjacent components.