 
 
 Seastar Sterndrive Cylinder BA150-7EM 1.5" ID, 7" Stroke, 10.2 cubic inches, HC5326-3
 
 Applications 
• Fits most power and non-power assist sterndrives. 
• Single and multiple drives. 
Features 
• Easy installation. 
• Simple autopilot interface. 
• Simple multiple steering connection. 
HOW TO SELECT A STERNDRIVE STEERING SYSTEM 
1. From the order guide select the drive configuration based on the number of 
drives. 
2. From the application guide confirm that a cylinder is available for your 
specific make, model and year of drive unit. Select the cylinder that is 
appropriate for the drive. 
3. From the order guide select the appropriate helm and accessory hardware. Note 
that two helm pumps of different displacements are available for power steered 
sterndrives. The displacement of the helm affects the number of turns lock to 
lock. Select the helm displacement on the basis of the desired steering 
response. 
4. Select the appropriate tube or hose and fitting kits. 
5. Confirm that sufficient space is available in the dash and engine 
compartments for the equipment. 
APPLICATION GUIDE 
  
    | ENGINE MANUFACTURER | 
    STEERING CONFIG. | 
    ENGINE / DRIVE DESCRIPTION | 
    YEAR | 
    CYLINDER DESCRIPTION | 
    NUMBER OF TURNS LOCK TO LOCK | 
    NOTE | 
   
  
    | MODEL NO. | 
    PART NO. | 
    SSTAR I HELM | 
    SSTAR II HELM | 
   
  
    | BMW | 
    Non Power Assist | 
    All | 
    To Date | 
    BA125-8EMV | 
    HC5330-3 | 
    4.9 | 
    N/A | 
    1 | 
   
  
    | Power Assist | 
    All | 
    To Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | MERCRUISER | 
    Non Power Assist | 
    Mercruiser I | 
    1983 & Prior | 
    BA125-8EMV | 
    HC5330-3 | 
    4.9 | 
    N/A | 
    1,7 | 
   
  
    | Alpha I | 
    1984 to Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Bravo I | 
    1984 to Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Bravo II | 
    1984 to Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Bravo III | 
    1984 to Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Power Assist | 
    Mercruiser I | 
    1983 & Prior | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | Alpha I | 
    1984 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | Bravo I | 
    1984 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | Bravo II | 
    1984 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | Bravo III | 
    1984 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2,8 | 
   
  
    | OMC | 
    Non Power Assist | 
    400/800 Series | 
    1985 & Prior | 
    N/A | 
    N/A | 
    N/A | 
    N/A | 
    - | 
   
  
    | Cobra | 
    1986 to Date | 
    BA150-7EM | 
    HC5326-3 | 
    6.0 | 
    N/A | 
    1,4 | 
   
  
    | King Cobra | 
    1986 to Date | 
    BA150-7EM | 
    HC5326-3 | 
    6.0 | 
    N/A | 
    1,4 | 
   
  
    | Power Assist | 
    400/800 Series | 
    1985 & Prior | 
    N/A | 
    N/A | 
    N/A | 
    N/A | 
    - | 
   
  
    | Cobra | 
    1986 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | King Cobra | 
    1986 to Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | VOLVO | 
    Non Power Assist | 
    275 | 
    To Date | 
    BA150-7ATM | 
    HC5314-3 | 
    6.0 | 
    N/A | 
    1,7 | 
   
  
    | 280 | 
    To Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | 290 | 
    To Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Diesel | 
    To Date | 
    BA135-7EM | 
    HC5332-3 | 
    5.0 | 
    3.5 | 
    1,5,6,7 | 
   
  
    | Non Power Assist | 
    275 | 
    To Date | 
    N/A | 
    N/A | 
    N/A | 
    N/A | 
    - | 
   
  
    | 280 | 
    To Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | 290 | 
    To Date | 
    125-8EM | 
    HC5328-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | Diesel | 
    To Date | 
    125-8VEM | 
    HC5329-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | 32, Diesel | 
    1997 to Date | 
    92-VPS | 
    HC5331-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | 41-42, Diesel | 
    1992 to Date | 
    92-VPS | 
    HC5331-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | DPS and SX | 
    1996 to Date | 
    92-VPS | 
    HC5331-3 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
  
    | YANMAR | 
    Non Power Assist | 
    All | 
    1989 to Date | 
    N/A | 
    N/A | 
    N/A | 
    N/A | 
    - | 
   
  
    | Power Assist | 
    All | 
    1989 to Date | 
    125-8EM | 
    HC5328 | 
    4.9/5.8 | 
    3.4/4.1 | 
    2 | 
   
 
Notes 
1. Balanced system – ie: the number of turns lock 
to lock is equal port to starboard or vice-versa. 
2. Unbalanced system – ie: the number of turns lock to lock is not equal port to 
starboard or vice-versa. 
3. Requires additional clevis supplied by engine manufacturer. Reference 
Quicksilver part No. B98735A1. 
4. Requires cylinder rod end adapter HA5424 supplied by Teleflex Canada Limited 
Partnership. 
5. HC5332 replaces HC5326 as of January 2000. If installing HC5326 additional 
clevis supplied by engine manufacturer required (part number B98735A1). 
6. The installation of the HC5332 sterndrive cylinder requires the use of 
SeaStar Outboard hose only. Do not use 3/8″ copper or nylon tube. 
7. If engine outdrive is NOT equipped with a torque tab on the underside of the 
lower leg one must be installed to reduce prop torque. 
8. Yanmar Engines using the Bravo III drives require the use of cylinder 
HC5326-3. 
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