GLM - Trim Cylinders & Parts
1968 - 1983 Pre-Alpha - 2 Internal Lines
The below cylinders & parts will not fit Alpha, TR, TRS, Gen II, Bravo or Speedmaster drives.
Please note - older cylinders which only have (1) trim hose going to each cylinder are no longer available from MerCruiser. The parts are also discontinued
trim cylinder is MerCruiser part # 45706A14. It is used on Pre-Alpha drives only
which were made between 1968 - 1983. Each cylinder uses (2) 12 inch trim
housing only is MerCruiser part # 77442A1. It is used on Pre-Alpha drives only
which were made between 1968 - 1983 and have (2) 12 inch trim hoses.
1968 - 1983 O-Ring Repair Kit
This is MerCruiser p/n 25- 60342A2 rebuild kit. It will fit the above trim cylinders used from 1968 thru 1983.
These are sold in a package of (1) each. Order (2) sets to do both cylinders.
The long object
to the right in this photo is the inner steel cylinder liner which the piston
slides inside of. Usually your old one will be rusted from water in the
trim cylinder oil.
: Order # 7410
This is MerCruiser p/n 45726 rear bearing. It will fit the above trim cylinders used from 1968 thru 1983.
Shipping Wt. 1 Lbs.
: Order # 1940
1968 - 1983 Outer Housing - External Lines
This is MerCruiser p/n 87173A7 trim cylinder empty housing. It was also used from 1968 - 1983 on Pre-Alpha drives. Each of these cylinders take 1 short hose and 1 long hose. This empty trim cylinder does not come with the end cap or o-rings. It is sold in a package of 1 each.
These cylinders take MerCruiser p/n 25-60342A3 o-ring kit ( Order # 42A3 ).
The end caps p/n # 87069 for the above cylinder is no longer available from MerCruiser.
The major overhaul repair kit p/n # 87068A1 is also no longer available from MerCruiser.
The same outer housing is used for either port or starboard by plugging (1) rear hole not being used.
This comes from MerCruiser.
: Order # 73A7 For Empty Cylinder
: Order # 42A3 For O-Ring Kit ( $20.95 )
The above cylinders & parts will not fit Alpha, TR, TRS, Gen II, Bravo or Speedmaster drives.
1984 - 1990 Alpha One
These trim cylinders were used between 1984 - 1990. Each cylinder uses one short hose and one long hose.
You can replace the entire cylinder or just replace the outer housing ( shown below ) and reuse your old internal parts. The Alpha outer housing alone does not come with the end cap or any o-rings.
The Alpha complete cylinders ( shown below ) are for the cylinders only. They do not come with the anchor pins, rubber grommets, zinc anodes, locknuts or washers. These Alpha replacements do not have the 2 tapped holes at the rear of the cylinder for mounting zinc anodes at this time.
Alpha Complete Cylinder
OEM Number Side Used On Length Of Tube Our Part Number
Alpha Outer Housing Only
1984 - Date O-Ring Repair Kit
These o-rings are used on 1984 - Date - Alpha One, Generation II, all Bravo and Blackhawk outdrives.
These are sold in
a package of (1) each. Order (2) sets to do both cylinders.
1991 - Date Alpha One/Generation II
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