Dometic Hydraulic Steering Cylinders - Application Guide for Stern Drive Engines
| Engine Manufacturer | Steering Configuration | Engine / Drive Description | Year(s) | Cylinder Description | # of Turns Lock-to-Lock | Notes | ||
| Model # | Sku # | Seastar 1.7 Helm | Seastar 2.4 Helm | |||||
| Mercruiser | Non-power Assist | ALPHA I BRAVO I BRAVO II BRAVO III |
2000 - up 2000 - up 2000 - up 2000 - up |
BA135-7EM BA135-7EM BA135-7EM BA135-7EM |
HC5332 or HC5386-3 HC5332 or HC5386-3 HC5332 or HC5386-3 HC5332 or HC5386-3 |
5.0 4.9/5.8 5.0 4.9/5.8 5.0 4.9/5.8 5.0 4.9/5.8 |
3.5 3.4/4.1 3.5 3.4/4.1 3.5 3.4/4.1 3.5 3.4/4.1 |
1,4,5,6 2,3,6,8 1,4,5,6 2,3,6,8 1,4,5,6 2,3,6,8 1,4,5,6,7 2,3,6,8 |
| Power Assist | ALPHA I BRAVO I BRAVO II BRAVO III |
2000 - up 2000 - up 2000 - up 2000 - up |
125-8EM 125-8EM 125-8EM 125-8EM |
HC5328-3 HC5328-3 HC5328-3 HC5328-3 |
4.9/5.8 4.9/5.8 4.9/5.8 4.9/5.8 |
3.4/4.1 3.4/4.1 3.4/4.1 3.4/4.1 |
2 2 2 2 |
|
| Volvo Penta | Non-power Assist | 290 DIESEL DPS |
All All 2000 - up |
BA135-7EM BA135-7EM BA135-7EM |
HC5332 or HC5386-3 HC5332 or HC5386-3 HC5332 or HC5386-3 |
5.0 4.9/5.8 5.0 4.9/5.8 5.0 4.9/5.8 |
3.5 3.4/4.1 3.5 3.4/4.1 3.5 3.4/4.1 |
1,4,5,6,9 2,3,6,8,9 1,4,5,6,9 2,3,6,8,9 1,4,5,6,9 2,3,6,8,9 |
| Power Assist | 290 DIESEL DPS & SX |
All All 1996 - up |
125-8EM 125-8VEM 125-6VPS |
HC5328-3 HC5329-3 HC5331-3 |
4.9/5.8 4.9/5.8 4.8/5.5 |
3.4/4.1 3.4/4.1 3.4/4.1 |
2 2 2 |
|
| Yanmar | Non-power Assist | ZT370 | All | BA135-7EM | HC5332 or HC5386-3 |
5.0 4.9/5.8 |
5.0 3.4/4.1 |
1,4,5,6,7 2,3,6,8 |
| Power Assist | ZT370 | All | 125-8EM | HC5328-3 | 4.9/5.8 | 5.0 | 2 | |
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 cylinder rod end adapter HA5424 supplied by Dometic.
4. HC5332 replaces HC5326-3 as of January 2000. If installing HC5326 additional clevis supplied by engine manufacturer required. Mastry Engine part # SUN144 *not provided by Dometic.
5. The installation of the HC5332-3 sterndrive cylinder requires the use of SeaStar hose only. Do not use 3/8” copper or nylon tube.
6. 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.
7. Yanmar Engines using the Bravo III drives require the use of cylinder HC5328-3.
8. Use of a 2.4 helm is not recommended.
9. HC5332 is recommended if the Volvo transom shield looks like that shown in figure 5-2 below.
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