Volvo Penta Pump Piston 3809972 - Special Order
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The Volvo Penta Pump Piston 3809972 is a front-mounted hydraulic steering pump / helm pump used in Volvo Penta hydraulic steering systems. It is the 33cc front-mount pump option shown at diagram position 1 in Volvo Penta steering-system diagrams, alongside the related 28cc and 39cc front-mounted pump options. This part is used for steering installations where the Volvo Penta diagram calls for the front-mounted 33cc pump piston.
Key Features
- Volvo Penta hydraulic steering pump piston / helm pump
- Part number: 3809972
- Mounting style: Front mounted
- Pump displacement: 33cc
- Diagram group: Steering System, Hydraulic
- Diagram position: 1
- Used as the middle-displacement front-mounted option between 3809971 / 28cc and 3809973 / 39cc.
- Related diagram hardware may include steering wheel nut, washer, air-vent plug, wedge, elbow nipples, washers, and lock nuts depending on installation.
Application Compatibility
Confirmed Volvo Penta steering-system diagram applications include:
- D1-13 — Hydraulic steering system, front-mounted 33cc pump piston
- D1-30 — Hydraulic steering system, front-mounted 33cc pump piston
- D2-55 / D2-55E — Hydraulic steering system, front-mounted 33cc pump piston
- D2-75F — Hydraulic steering system, front-mounted 33cc pump option.
This part should be matched by the steering-system diagram, mounting style, and pump displacement rather than by engine model alone.
Fitment Notice
Volvo Penta hydraulic steering pumps are listed in different mount styles and displacements. Before ordering, confirm that the existing helm pump is front mounted and 33cc. Do not interchange it with the 28cc front-mount 3809971, 39cc front-mount 3809973, rear-mounted pumps, or tilt-mounted steering pumps unless the Volvo Penta steering diagram specifically calls for that setup.
When This Part Needs Replacement
Replace the pump piston / helm pump if the steering becomes stiff, inconsistent, slow to respond, leaks at the helm, loses hydraulic pressure, draws air into the steering system, or cannot be bled properly. Also inspect it when the wheel has excessive free play or when steering performance changes after hydraulic hose or cylinder service.
Installation Notes
Verify the mounting style, steering wheel hardware, air-vent plug, elbow fittings, hose routing, and hydraulic steering cylinder compatibility before installation. The system should be filled and bled according to the Volvo Penta steering procedure. If the steering system has been modified, confirm the pump displacement and cylinder volume before replacing the helm pump, since pump size affects steering wheel turns and steering effort.
Alternate/Superseded Part Numbers
- Volvo Penta 3809972 — front-mounted 33cc pump piston / steering pump reference
Related steering pump references:
- 3809971 — front mounted, 28cc
- 3809973 — front mounted, 39cc
- 3809975 — rear mounted, 28cc
- 3809976 — rear mounted, 33cc
- 3809977 — rear mounted, 39cc
- 21135046 — tilt-mounted steering, 33cc reference shown in later diagram data.
Parts Desk Insight
The important match is front mount + 33cc. A different displacement can change the number of steering-wheel turns and steering effort, while a different mount style may not fit the helm layout at all. Match the existing pump and steering diagram before ordering.
Special Order — this product is not currently in store inventory but may be available from the Manufacturer. Special Orders may take up to 2 weeks to arrive. Call the parts desk before ordering if you need a closer estimate on delivery time.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
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Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
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