Optional isolation plates made of extremely resilient G10 improve load distribution by transferring torque directly to the mounting surface.
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Harken 3-speed pumps push oil faster and more efficiently than other pumps on the market, reducing wasted time and energy. At preset points, the pump automatically shifts to the next speed. Shift points can be adjusted to fit crew strength and sailing style. Our 2-speed pump is built for smaller hydraulic systems, but features the same high-quality components as the 3-speed pump. Pressure relief has been factory set to a safe maximum of 5000 psi. Upgrades are easy because the mounting patterns for 2- and 3-speed pumps are identical.
Bolt holes in the Hardkote-anodized 6061-T6 aluminum pump housing are threaded with stainless steel inserts to prevent corrosion around the stainless bolts. An optional adhered isolation plate improves load distribution even more by transferring torque directly to the mounting surface rather than the bolt holes. The piston shafts and rocker arms are machined from 17-4PH stainless steel. A splined shaft on the pump ensures a tight fit. Standard shaft length is 30.5 mm (1.2 in) with 3.5° angle. Custom shafts are available upon special order.
Handles mount at the exact angle you choose. Standard round-tipped handles are made of knurled 6061-T6 Hardkote-anodized aluminum and fit most marine pumps. Grand Prix versions are available in carbon fiber. An optional square-tipped style allows the handle to be rocked 5 degrees laterally from the pumping direction to store against the cockpit wall.
| Part No. |
Description | Download drawings |
Output/stroke (push and pull) | Max pressure |
Ports/fittings | Weight | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st: Low pressure |
2nd: Medium pressure | 3rd: High pressure |
||||||||||||
| in3 | cc | in3 | cc | in3 | cc | psi | bar | Suction | Pressure | lb | kg | |||
| HYPM2 | 2-Speed pump/auto shift* | 2D 3D PDF | 0.99 | 16.3 | 0.25 | 4.1 | — | — | 5000 | 345 | 3/8" hose barb | 1/4" 37° JIC | 4.3 | 1.95 |
| HYPM3-1.1R | 3-Speed pump/auto shift/round handle socket* | 2D 3D PDF | 2.03 | 33.3 | 0.51 | 8.3 | 0.18 | 3.0 | 10000 | 689 | 3/8" NPT | 7/16" ORB | 4.4 | 2.00 |
| HYPM3-1.1S | 3-Speed pump/auto shift/square handle socket* | 2D 3D PDF | 2.03 | 33.3 | 0.51 | 8.3 | 0.18 | 3.0 | 10000 | 689 | 3/8" NPT | 7/16" ORB | 4.4 | 2.00 |
| HYPM3MP | Pump anti-torque mounting plate | — | — | — | — | — | — | — | — | — | — | 0.1 | 0.07 | |
*M8 fasteners
| Part No. |
Description | Ø | Length | Weight | Photo | |||
|---|---|---|---|---|---|---|---|---|
| in | mm | in | mm | lb | kg | |||
| HYPMH6600 | Pump Handle 600 mm/aluminum | 1-1/4 | 32 | 23-5/8 | 600 | 1.2 | 0.56 |  |
| HYPMH6800 | Pump Handle 800 mm/aluminum | 1-1/4 | 32 | 31-1/2 | 800 | 1.5 | 0.70 | |
| HYPMHC800 | Pump Handle 800 mm/carbon | 1-1/4 | 32 | 31-1/2 | 800 | 1.0 | 0.45 | |
| HYPMHC800S | Pump Handle 800 mm/carbon/square tip | 1-1/4 | 32 | 31-1/2 | 800 | 1.0 | 0.45 | |
| HYPMHC1000 | Pump Handle 1000 mm/carbon | 1-1/4 | 32 | 39-3/8 | 1000 | 1.2 | 0.53 | |
| HYPMHC1000S | Pump Handle 1000 mm/carbon/square tip | 1-1/4 | 32 | 39-3/8 | 1000 | 1.2 | 0.53 | |