Quicksilver zinc trim tab anode 853762T01 is a combined sacrificial anode and trim tab for select Mercury and Mariner outboard motors. It is mounted in the anode recess on the gearcase anti-ventilation plate, where it protects the engine's aluminum and stainless steel parts from galvanic corrosion and helps counteract steering torque.
The trim tab anode is documented for Mercury and Mariner 8 FourStroke with standard or BigFoot gearcase, as well as 9.9 FourStroke with standard, BigFoot, or Command Thrust gearcase. It also fits 15 FourStroke 351 cc with Japanese serial number 0R235949-0R833819 and 20 FourStroke 351 cc with Japanese serial number 0R235168-0R833819.
The anode is made of zinc and can be used in both freshwater and saltwater. It has an outer diameter of 2.3″, a height of 2″, and a hole diameter of 1/4″.
The sacrificial anode should be checked regularly and replaced when it shows clear signs of corrosion or pitting. Always check the engine model, gearcase type, serial number, and part number before ordering, as compatibility varies between engine versions.
Key featuresOriginal Quicksilver trim tab anode
Part number: 853762T01
Material: Zinc
For select Mercury and Mariner FourStroke outboard motors
Mounted on the gearcase anti-ventilation plate
Outer diameter: 2.3″
Height: 2″
Hole diameter: 1/4″
Can be used in freshwater and saltwater
Check model, gearcase, and serial number before purchase
