Engineered Marine Products Yamaha Outboard Power Trim Cylinder End Cap

Description

The Engineered Marine Products Yamaha Outboard Power Trim Cylinder End Cap is a professional-grade replacement component engineered to restore high-pressure hydraulic fluid retention to your engine’s lift rams. Over seasons of intense exposure to brackish or saltwater environments, factory aluminum trim caps are highly prone to galvanic corrosion, pitting, and thread bonding. This leads to costly fluid leaks and dangerous outboard trim drift. Manufactured by Engineered Marine Products (EMP) to match exact OEM thread tolerances, this heavy-duty cap provides an uncompromised, leak-proof barrier built to survive massive hydraulic pressure loads.

Forged from premium marine-alloy composites, this cylinder end cap comes pre-loaded with high-durability internal seals and an advanced outer scraper ring. This specialized assembly blocks destructive sand particles, salt crystals, and raw water from creeping past the shaft and chewing up your internal pistons. This standalone item is engineered for broad compatibility, providing a perfect high-tolerance fit for a wide matrix of single outboard configurations—ensuring smooth, fast, and secure tilt response whenever you adjust your helm controls.

At The Outdoor Warehouse, we’re dedicated to helping boaters find the strongest, trail-proven fluids, parts, and accessories for their marine gear. Every product is backed by real-world testing for temperature stability and anti-wear protection—meeting or exceeding stringent OEM standards. From shallow-water anchor accessories to specialized transom rebuild kits, we carry trusted brands built to keep you connected. With expert support and fast U.S. shipping, we help you launch with total confidence.

Exact Outboard Fitment Specifications:

• Yamaha 2-Stroke Applications: Direct fit for 115 HP (1997 to 2006), 130 HP (1997 to 2004), 150 HP (1997 to 2006), 175 HP (1997 to 2006), and 200 HP (1997 to 2006) models.
• Yamaha High-Horsepower 2-Stroke: Fits large-platform 300 HP (2004 to 2006) 2-stroke outboard units.
• Yamaha 4-Stroke Applications: Fully calibrated to seal 4-stroke F115, F150, and LF150 (2000 to 2006) hydraulic trim rams.
• Engine Configuration: Explicitly engineered for single outboard hydraulic ram assemblies.

Technical Performance Features:

• Premium Marine-Alloy Matrix: High-density metal casting protects your hydraulic threads from raw saltwater oxidation and galvanic corrosion.
• Pre-Loaded Seal Protection: Features factory-installed, pressure-rated internal rubber seals and an active wiper ring to completely optimize fluid containment.
• Zero-Leak Threading: CNC-machined to match factory specifications exactly, ensuring a tight, wobble-free seating arrangement during intense thrust shifts.
• Maintains System Pressure: Prevents steering sponginess and bleed-down, allowing your engine to remain locked at your desired trim angle.

Ideal For: Marine mechanics, boat operators, and DIY enthusiasts performing a hydraulic tilt/trim ram rebuild or seasonal outdrive maintenance.
Material: Saltwater-Shield Plated Marine Alloy.
Manufacturer Part Number (MPN): 58-02640 | List Price: $39.99

Highly regarded by professional boat builders and marine technicians nationwide, this heavy-duty end cap extends the operating life of your hydraulic lift systems. Complete your regular outdrive overhaul by pairing this part with premium marine hydraulic steering fluids and high-pressure line fittings available right here at The Outdoor Warehouse.

Explore more gear for your next adventure in our related collections:

• Fishing Gear
• Boating & Marine Supplies

Visit our Learning Center or explore the Fishing Learning Center for expert outboard trim rebuilding guides, hydraulic system bleed charts, and preventative boat maintenance tips.

Available now at The Outdoor Warehouse — backed by expert support, fast U.S. shipping, and trusted by outdoor professionals nationwide.