Mercury 9.9 EH Manual page 100

5. Coat the propeller shaft with Quicksilver or Mercury Precision
Lubricants Anti‑Corrosion Grease or 2‑4‑C with Teflon.
Tube Ref
No.
Anti-Corrosion
94
Grease
2-4-C with Teflon
95
IMPORTANT: To prevent the propeller hub from corroding and
seizing to the propeller shaft (especially in salt water), always
apply a coat of the recommended lubricant to the entire propeller
shaft at the recommended maintenance intervals, and also each
time the propeller is removed.
MAINTENANCE
Description
27305
Where Used
Propeller shaft
Propeller shaft
90
Part No.
92-802867Q 1
92-802859A 1