Quicksilver Aluminum Trim Tab Anode 822777Q1 for Mercury/Mariner Outboards & MerCruiser Drives — High-Rake Prop Clearance, OEM Fit

This aluminum trim tab anode combines sacrificial corrosion protection with a hydrodynamic trim surface to help preserve gearcase housing and assist steering control. Engineered to match Mercury Marine OEM specifications, the 822777Q1 fits most Mercury/Mariner outboards 35hp and above (including select Force models) and all MerCruiser drives. It replaces worn anodes easily with included hardware and is suitable for both fresh and saltwater environments.

How does this trim tab anode protect my outboard or sterndrive?

The anode is sacrificial: it corrodes in place of metal parts on your lower unit, slowing galvanic damage to the gearcase and nearby components. Its aluminum construction meets or exceeds MIL‑A‑24779(SH), offering longer life than traditional zinc anodes and broad suitability for varied water types.

• Sacrificial aluminum material corrodes before critical components.
• Meets military spec for enhanced longevity versus zinc.
• Designed for both saltwater and freshwater use.
• Includes mounting hardware for straightforward replacement.

Will this anode fit my propeller and lower unit with a high‑rake prop?

This trim tab anode is shaped and positioned to provide extra clearance required when you run high‑rake propellers, keeping trim performance without interference. It’s intended for applications where the standard anode would contact or limit clearance for the propeller’s rake angle.

• Profile engineered for high‑rake propeller clearance.
• Reduces risk of prop interference while maintaining hydrodynamic trim force.
• Common fit for higher‑rake setups on Mercury/Mariner lower units.

Which engines and drives are compatible with part 822777Q1?

The Quicksilver 822777Q1 fits most Mercury and Mariner outboards of 35 horsepower and above, Force 90hp and 120hp models from 1995 and newer, and all MerCruiser stern drives. It’s produced to match Mercury Marine OEM specifications to ensure correct fit and protective coverage.

• Compatible with Mercury/Mariner outboards 35hp+.
• Compatible with Force 90hp and 120hp (1995 and newer).
• Fits all MerCruiser stern drives requiring higher clearance.
• Made to Mercury Marine OEM specification for reliable fitment.

How do I maintain and replace this anode?

Inspect the anode regularly—at least once per season or during routine lower‑unit checks—and replace it when you see heavy pitting or more than 50% material loss. Replacement is user‑friendly: the 822777Q1 ships with the necessary mounting hardware and can be swapped with basic hand tools.

• Inspect annually or during routine lower‑unit maintenance.
• Replace when significant corrosion or pitting appears.
• Comes with mounting hardware for easy installation.
• Basic hand tools are sufficient for removal and installation.

Who is this for: The Quicksilver 822777Q1 aluminum trim tab anode is for boat owners and marine technicians who run Mercury/Mariner outboards 35hp and up, owners of 1995+ Force 90hp or 120hp motors, and anyone with MerCruiser stern drives who need extra clearance for high‑rake propellers. It’s also a good choice for skippers who prefer aluminum anodes for longer service life and use their boats in both salt and fresh water. Choosing Quicksilver means selecting a part built to OEM standards to protect your lower unit, maintain steering control, and simplify seasonal maintenance.