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You are here:Home > Mercury Outboard Models > 1970 - 1973 > Merc 25SS > Lower Unit
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SHEAR PIN
Our Price: $1.25

SHEAR PIN - See model guide for application
PROP NUT
Our Price: $1.30

Prop nut for  KG4H, KG7H, Mark 20H, Mark 30H
(SELF-LOCKING)
VENT SCREW KIT
Our Price: $1.79

Gear Case Vent screw with gasket for gear cases of many smaller Mercury Outboards.
GEARCASE DRAIN SCREW WITH GASKET
Our Price: $5.00
Sale Price: $4.25
You save $0.75!

Gear Lube Drain screw with gasket for most Mercury lower units.  (Also used as vent screw in 1963 and newer 35HP and larger non-racing gear cases.)

Was 10-79953T2

This is used as both drain & vent on 1974 & prior models.  1975-76 use this for vent screw and 22-67892A06 magnetic drain screw.
GEAR LUBE
Our Price: $6.20

Gear Grease- 105 Lubriplate replaces original gear grease in all 1, 2, & 4 cyl. Mercurys through 1961. This heavier lube should also be used in non-shift motors of other brands. 10 oz.

Note: Modern 90 weight gear lube is generally unacceptable in these engines.
WATER PUMP COVER PLATE
Our Price: $8.00

Stainless Steel water pump cover plate used on most A, B & C Class Quicksilver Lower Units
OIL SEAL
Our Price: $8.15

LOWER UNIT PROP SHAFT SEAL, DRIVE SHAFT SEAL & WATER PUMP COVER SEAL
Our Price: $11.92

Lower unit prop shaft seal for KF7, KG4, KG7, KH7, Mark 15, 20, 25

This the driveshaft seal on the KH7.

This is the water pump cover seal for the Merc 200
LOWER UNIT SEAL KIT
Our Price: $37.09

Lower Unit Seal Kit contains all lower unit seals for Mark 30H.
WATER PUMP IMPELLER
Our Price: $58.00

Reproduction impeller for  A, B, & C Class racing engines