Bonbo Outboard Trim/Tilt Pin Wrench Set MT0004/MT0006/MT0009 — 3-Piece High-Strength Steel Kit for Yamaha Suzuki Johnson Evinrude

Bonbo MT0004, MT0006 and MT0009 trim/tilt pin wrenches are a three-piece heavy-duty tool set designed to remove and install trim, tilt and hydraulic steering end caps on Yamaha, Suzuki, Johnson, Evinrude and Seastar systems without damaging covers or piston shafts.

This set bundles three interchangeable pin wrenches and multiple replacement pins to match the common dimensions found on outboard hydraulic trim, tilt and steering cylinders. Machined from high-strength steel and engineered to accept replacement pins, the kit replaces several OEM tools and gives marine technicians and boat owners a practical way to service leaking seals, replace caps or perform routine maintenance with controlled torque and minimal slippage.

How does this set fit different outboard trim and tilt caps?

Each wrench in the set is sized to engage a specific range of cap diameters and pin sizes used on popular manufacturers. By installing the correct replacement pins into the wrench head you get a secure engagement with the cap’s pin holes so you can apply torque without rounding or slipping. The kit covers sizes commonly specified for Yamaha, Suzuki, Johnson, Evinrude and Seastar installations.

• MT0004: 38mm × 4mm body with six replaceable 4mm pins.
• MT0006: 32mm × 4mm/4.5mm body with six replaceable pins for tighter fits.
• MT0009: 35mm × 6mm body with three heavier-duty 6mm pins.
• Replacement pins install easily and prevent damage to cover plates or shafts.

Will these tools replace the OEM Yamaha factory tools?

Yes — the Bonbo wrenches are made to act as direct replacements for common OEM tools. They match the sizing of Yamaha factory part numbers and other manufacturer equivalents so you can use one kit in place of multiple individual tools. Minimum pin strength ratings provide the reliability expected for professional use.

• Listed OEM equivalents include YB-06175-2B, YB-06175-1A and YB-06548.
• MT0004/MT0006 pins rated at minimum 180 ft·lb; MT0009 rated at 200 ft·lb.
• Pins seat securely into the wrench to avoid slipping while removing caps.
• Works with Seastar hydraulic steering end caps as well as many outboard models.

What materials and durability features does the Bonbo set offer?

The wrenches and pins are machined from high-grade steel chosen for strength and wear resistance. Heat-treated hardness and corrosion-resistant finishing reduce deformation and extend usable life in marine environments. Solid construction minimizes tool flex and keeps replacement pins aligned under load.

• High-strength steel resists rust, impact and wear for long-term service.
• Precision machining ensures accurate engagement with cap recesses.
• Replaceable pins allow refreshes without buying a whole new tool.
• Compact set saves toolbox space compared to separate specialty tools.

How do I use the pin wrench set safely and effectively?

Select the wrench whose diameter best matches the cap, install the correct pins, insert the pins fully into the cap’s receptacles and apply steady, controlled torque. Avoid using worn or bent pins; replace them from the kit as needed. If a cap is corroded or stuck, apply penetrating lubricant and work incrementally to prevent sudden failure.

• Match pin diameter and wrench size before applying torque.
• Use steady force and avoid hammering the wrench to prevent damage.
• Replace pins when worn; the set includes multiple spare pins for each wrench.
• Pair with penetrating oil for seized or corroded caps.

Who is this for: The Bonbo MT0004/MT0006/MT0009 set is aimed at marine mechanics, boat owners, and DIYers who service outboard trim/tilt or Seastar hydraulic steering components. If you need a single compact kit to cover multiple cap sizes, want OEM-equivalent performance without buying three separate specialty tools, or require replaceable pins for ongoing maintenance, this set is built to meet those needs.