64E-4384J-00 Yamaha Trim Down Seal | Genuine OEM Yamaha Outboard Part
64E-4384J-00 Yamaha Trim Down Seal | Genuine OEM Yamaha Outboard Part
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🔧 Product Description
Genuine Yamaha Trim Cylinder Down Seal - Part Number: 64E-4384J-00
A genuine Yamaha hydraulic trim-cylinder down seal for selected large-horsepower Yamaha outboards.
The seal is installed within the trim-cylinder end-cap assembly and maintains hydraulic pressure around the trim ram during downward movement. It works with the external dust seal and supporting O-rings to prevent hydraulic-fluid loss and water intrusion.
⚙️ Key Features
- Genuine Yamaha OEM trim-cylinder hydraulic seal
- Correct Yamaha part number 64E-4384J-00
- Used in the trim-down side of the cylinder end-cap assembly
- Supports hydraulic pressure retention and controlled ram movement
- Cross-references with Sierra, WSM and Pro Marine replacements
🚤 Compatibility
Commonly used on
- Yamaha two-stroke and four-stroke power trim cylinder assemblies
- Yamaha VMAX, Saltwater Series, OX66, HPDI, four-stroke and SHO systems
Typically suits
- Engine models:
- Yamaha 115HP, B115, C115, F115, LF115 and S115
- Yamaha 130HP, L130 and S130
- Yamaha 150HP, C150, F150, FL150, L150, LZ150, P150, S150, SX150, V150, VF150, VX150, VZ150 and Z150
- Yamaha 175HP, F175, P175, S175, V175, VZ175 and Z175
- Yamaha 200HP, F200, FL200, LF200, L200, LZ200, P200, S200, SX200, V200, VF200, VX200, VZ200 and Z200
- Yamaha 225HP, F225, LF225, V225, VF225, VX225, VZ225 and Z225
- Yamaha 250HP, F250, LF250, VF250, VX250, VZ250 and Z250
- Yamaha VZ300 and Z300 HPDI trim-cylinder assemblies
- HP Range: 115HP - 300HP
- Engine Type: Yamaha two-stroke, OX66, HPDI, four-stroke and VMAX SHO outboard
- Year Range: Approximately 1997 - 2018, dependent on trim cylinder
🔌 Function
The seal retains pressurised hydraulic fluid around the trim ram during trim-down operation. It also prevents water and contaminants from entering the hydraulic cylinder around the moving rod.
⚠️ Common Signs of Failure
- Hydraulic oil leaking around the trim-cylinder ram
- Engine slowly settles after being trimmed
- Trim movement becomes weak or uneven
- Air repeatedly enters the hydraulic system
- Seal lip is torn, flattened or hardened during overhaul
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 64E-4384J-00 current Yamaha OEM service reference
OEM / Related Numbers
- 64E-4384J-00
- 64E-4384J-00-00
- 64E4384J0000
- 64E-43822-00 related trim dust seal
- 64E-43821-00 related trim-cylinder end screw
- 64E-43866-09 related outer O-ring
Aftermarket / Verified Equivalents
- Sierra: 18-2082
- WSM: 335-310
- Pro Marine: 64E-4384JP
📦 Condition
- Genuine Yamaha part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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