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OEM Mercury Power Trim Seal Kit
Mercury EFI Power Trim Hydraulic O-Ring & Seal Kit
This genuine OEM Mercury power trim seal kit is used on select Mercury 105HP EFI Jet, 135HP EFI, and 150HP EFI FourStroke outboards.
The kit contains hydraulic O-rings and sealing components used during trim cylinder reseal service, hydraulic trim repair, and power trim maintenance.
Compatible Applications
| Horsepower | Engine Model | Serial Range | Application Notes |
|---|---|---|---|
| 105HP | Mercury EFI Jet | 3B672358 & Up | Power trim assembly components |
| 135HP | Mercury EFI FourStroke | 2B131942 & Up | Hydraulic trim and tilt systems |
| 150HP | Mercury EFI FourStroke | 1B905505 & Up | Power trim assembly components |
| 150HP | Mercury EFI Sea Pro | 2B139139 & Up | Commercial Sea Pro applications |
| 150HP | Mercury EFI Pro XS | 2B550139 & Up | Performance Pro XS models |
Always verify your engine horsepower, model type, and serial number before ordering hydraulic trim components and seal kits.
OEM Part Numbers & Cross References
| Type | Part Number |
|---|---|
| Mercury OEM Number | 8M0057770 |
What This Power Trim Seal Kit is Used For
This Mercury hydraulic trim seal kit is used during repair and reseal service of compatible Mercury power trim and tilt systems.
The included hydraulic O-rings and sealing components help seal trim cylinders, hydraulic passages, pistons, caps, and trim assembly components depending on trim system configuration.
Hydraulic seals commonly wear over time due to heat, hydraulic pressure, contamination, and marine operating conditions.
Replacing worn trim seals during hydraulic service can help reduce hydraulic fluid leaks and restore proper trim and tilt operation.
Key Features and Benefits
- Genuine OEM Mercury hydraulic trim seal kit
- Fits select Mercury EFI FourStroke trim systems
- Fits 105HP EFI Jet, 135HP EFI, and 150HP EFI models
- Includes hydraulic O-rings and sealing components
- Designed for trim cylinder reseal and repair service
- Helps reduce hydraulic fluid leaks
- Supports proper trim and tilt operation
- OEM Mercury hydraulic fit and compatibility
Power Trim Seal Kit Details
- Brand: Mercury Marine
- Part Type: Hydraulic O-Ring & Seal Kit
- OEM Part Number: 8M0057770
- Application: Mercury EFI FourStroke Power Trim Systems
- Horsepower Range: 105HP-150HP
- System: Power Trim & Tilt Hydraulic System
- Use: Hydraulic trim reseal and repair service
FAQ
What engines does this trim seal kit fit?
This kit fits select Mercury 105HP EFI Jet, 135HP EFI, and 150HP EFI FourStroke outboards depending on serial number range.
What is this seal kit used for?
This kit is used to reseal and service compatible Mercury hydraulic trim and tilt systems.
Is this a genuine Mercury part?
Yes. This is a genuine OEM Mercury hydraulic trim seal kit.
Should I verify my serial number before ordering?
Yes. Mercury used multiple trim system designs and hydraulic assemblies, so serial number verification is strongly recommended.
What are common signs of leaking trim seals?
Common symptoms may include hydraulic fluid leakage, trim drifting, weak trim operation, or inability to hold trim position.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Hydraulic and trim components should be installed only after proper diagnosis and inspection.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
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