38mm x 4mm Pin Wrench (AMT0304) - Replaces AMT0004

38mm x 4mm Pin Wrench (AMT0304)

The Marine Tech Tools AMT0304 is the 300 Series upgrade to the original AMT0004, engineered for removing hydraulic trim/tilt and steering end caps on Yamaha V6 four-stroke outboards and SeaStar steering cylinders. The patented sleeve-and-receiver system locks the wrench into the cap so it cannot twist out under load, letting you apply full breaker bar torque without slipping.

Compatibility

• SeaStar HS5157 steering cylinder rebuilds
• Yamaha V6 four-stroke center tilt caps
• Yamaha F150 tilt caps (2011 and newer)

Technical Specifications

• Pin Stance and Size: 38mm x 4mm
• Drive Size: 1/2" socket drive
• Torque Rating: 200 ft-lb minimum yield
• OEM Crossover: Replaces Yamaha YB-06548 and SeaStar HS5157 steering gland tools
• Replaces: AMT0004

Key Features

• Patented sleeve-and-receiver system — wrench locks into the cap using the outboard's own weight to prevent kickout
• Rated to 200 ft-lb minimum yield — pins manufactured from a proprietary material selection and heat treatment
• 1/2" socket drive — compatible with breaker bars, torque wrenches, and impact drivers
• Polished marine-grade stainless steel — corrosion resistant for saltwater environments
• Replacement pins available — L-4 Pins (AMT0050)

Use With

AMT0170 Protective Sleeve (sold separately) — required to engage the sleeve-and-receiver locking system.