8M0171818 8M0090335 Mercury Trim Assembly and BRACKET ANCHOR 818771T1 | Genuine Used Part

🔧 Product Description

Genuine Mercury Power Trim Assembly with Anchor Bracket - Part Number: 8M0171818

A genuine Mercury complete power tilt and trim assembly supplied with the matching anchor bracket. The hydraulic trim unit supersedes 8M0090335, while the supplied 818771T1 anchor bracket is replaced by current Mercury bracket 8M0086406.

This listing includes the hydraulic trim assembly and the anchor bracket shown or supplied.

⚙️ Key Features

• Genuine Mercury OEM power tilt and trim assembly
• Current trim-unit reference 8M0171818
• Supersedes 8M0090335
• Includes anchor bracket 818771T1
• Anchor bracket superseded by 8M0086406
• Used on selected 65 Jet through 125HP three-cylinder and inline four-cylinder outboards

🚤 Compatibility

Commonly used on

• Mercury and Mariner three-cylinder and inline four-cylinder transom assemblies
• Carburetted, EFI, SeaPro, Pro XS and Jet outboards using the later complete trim unit

Typically suits

• Engine models:
• Mercury 75HP three-cylinder - serial 0T980000 to 0T999999
• Mercury 75HP three-cylinder - serial 1B000000 and above
• Mercury 90HP three-cylinder - serial 0T980000 to 0T999999
• Mercury 90HP three-cylinder - serial 1B000001 and above
• Mercury 75HP international - serial 0P325500 and above
• Mercury 90HP international - serial 0P325500 and above
• Mercury 65 Jet three-cylinder - serial 0T980000 to 0T999999
• Mercury 65 Jet three-cylinder - serial 1B000001 and above
• Mercury 75 EFI - serial 1B366823 to 2B094995
• Mercury 80 EFI - serial 1B366823 to 2B094995
• Mercury 80 EFI international - serial 0P459572 to 2B094995
• Mercury 90 EFI - serial 1B366823 to 2B094995
• Mercury 100 EFI - serial 1B366823 to 2B094995
• Mercury 100 EFI international - serial 0P459572 to 2B094995
• Mercury 115 EFI - serial 1B366823 to 2B094995
• Mercury 115 EFI Pro XS - serial 2B225488 and above
• Mercury 75 1.5L three-cylinder - serial 1B736885 to 2B112577
• Mercury 90 1.5L three-cylinder - serial 1B736885 to 1B974258
• Mercury 115 1.5L three-cylinder - serial 1B736885 to 2B018763
• Mercury 80 Jet 1.5L three-cylinder - serial 1B736885 to 2B111840
• Mercury 125 1.5L three-cylinder - serial 1B736885 to 2B112787
• Mercury 115 Pro XS 1.5L - serial 1B751825 to 2B123429
• Mercury 75 EFI - serial 2B095049 and above
• Mercury 75 EFI SeaPro - serial 2B095049 and above
• Mercury 80 EFI - serial 2B095049 and above
• Mercury 90 EFI - serial 2B095049 and above
• Mercury 90 EFI SeaPro - serial 2B095049 and above
• Mercury 100 EFI - serial 2B095049 and above
• Mercury 115 EFI - serial 2B095049 and above
• Mercury 115 EFI SeaPro - serial 2B095049 and above
• Mercury 65 EFI Jet - serial 2B095049 and above
• Mercury 80 EFI Jet - serial 2B095049 and above
• Anchor bracket applications on selected Mercury 75HP, 80HP, 90HP, 100HP, 115HP and 125HP transom assemblies
• HP Range: 65 Jet - 125HP
• Engine Type: Mercury / Mariner carburetted and EFI three-cylinder or inline four-cylinder outboard
• Year Range: Approximately 1988 onward, dependent on trim-unit and anchor-bracket configuration

🔌 Function

The hydraulic unit raises, lowers and trims the outboard, while the anchor bracket secures the lower end of the trim assembly to the transom-bracket structure and transfers hydraulic load into the engine mount.

⚠️ Common Signs of Failure

• Engine will not raise or lower
• Trim motor runs without hydraulic movement
• Engine settles after being trimmed
• Hydraulic fluid leaking from the unit
• Cracked, corroded or elongated anchor-bracket mounting holes
• Excessive play at the anchor pin
• Slow or one-direction-only operation
• Pitted ram rod damaging the seals

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 8M0171818 → Supersedes 8M0090335
• 8M0090335 earlier OEM power-trim assembly
• 8M0086406 → Supersedes 818771T1
• 818771T1 → Supersedes 818771T
• 818771T → Related to earlier 818771F1 anchor-bracket reference

OEM / Related Numbers

• 8M0171818
• 8M0090335
• 8M0086406
• 818771T1
• 818771T
• 818771F1
• Mercury 65-125HP clamp and swivel bracket components
• Mercury power-trim seal-kit references for the matching hydraulic unit

Aftermarket / Verified Equivalents

• FridayParts: FPXQ2407242
• HOLDWELL: 8M0171818 / 8M0090335 replacement trim assembly
• Winibo: 8M0171818 replacement power-trim unit
• Poseidon Marine: seal rebuild kit for the corresponding Mercury trim ram
• Marine hydraulic rebuilders: complete 8M0090335 / 8M0171818 rebuild service

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated