The Whale AK0553 Service Kit is designed for servicing Whale Gusher Galley MK3 manual pumps commonly used in marine freshwater systems. Replacing worn diaphragms, valves, and internal components helps maintain efficient water flow and reliable manual operation onboard.

This genuine Whale service kit is ideal for preventive maintenance or restoring older pumps exposed to constant marine use and saltwater environments.

Compatible With

• Whale Gusher Galley MK3 manual pumps

Typical Applications

• Galley freshwater systems
• Hand-operated freshwater pumps
• Sailboats
• Motorboats
• Small cruising and fishing vessels

Benefits

• Restores smooth pump action
• Helps maintain consistent water flow
• Extends pump service life
• Reduces maintenance costs
• Genuine Whale replacement parts for proper compatibility

Recommended Maintenance

Manual freshwater pumps are regularly exposed to salt air, moisture, and continuous mechanical use. Periodic servicing helps prevent reduced pumping efficiency and unexpected failures during cruising or extended onboard stays.

The Johnson Pump 09-810B-1 is an original equipment (OEM) service kit for Johnson F4B raw water pumps. Regular impeller replacement is an essential part of marine engine maintenance, helping to maintain efficient seawater circulation and reduce the risk of engine overheating.

Designed to OEM specifications, this kit contains the components required for a straightforward impeller replacement during scheduled servicing.

Kit Contents

• Genuine Johnson Pump MC97 flexible rubber impeller
• Pump cover gasket(s)
• O-ring
• Installation lubricant

Specifications

• Manufacturer: Johnson Pump
• Part Number: 09-810B-1
• Pump Model: F4B
• Impeller Material: MC97 rubber compound
• Outside Diameter: 50.8 mm (2″)
• Width: 22 mm
• Shaft Diameter: 12 mm
• Number of Blades: 6
• Drive Type: Slotted hub

Features

• Genuine OEM Johnson Pump replacement kit
• Designed for Johnson F4B raw water pumps
• Maintains efficient engine cooling performance
• Includes seals and lubricant for convenient servicing
• Ideal for routine maintenance and preventative replacement

Compatibility

Designed for Johnson Pump F4B raw water pumps.

Many marine diesel engines use the F4B pump, but compatibility depends on the specific pump fitted rather than the engine model. Always verify your existing impeller part number or pump model before ordering.

The TMC 04301 submersible pump is designed for clean water transfer where space is limited. Its compact size makes it ideal for small boats, water tanks, livewells, and recreational vehicles.

Reliable 12V Operation

Operating on a 12V DC power supply, the pump delivers a flow rate of 100 GPH (378 L/h) while drawing only 2 amps, making it suitable for battery-powered systems.

Features

• 12V DC operation
• Flow rate: 100 GPH (378 L/h)
• Current draw: 2A
• Recommended fuse: 3A
• Maximum delivery head: 5 metres
• Hose outlet: 10–11 mm
• Compact dimensions: approximately 40 × 34 × 103 mm
• Suitable for fresh water and saltwater applications
• Fully submersible design for clean water transfer

Ideal Applications

• Small boat bilges
• Freshwater tanks
• Livewells
• Water transfer systems
• Campervans and caravans
• Portable water supply installations

Note: This pump is intended for transferring relatively clean water. It is not designed to handle large debris or heavy solids.

This impeller is commonly fitted to Johnson Pump F35 series raw water pumps and is also used as a replacement in many equivalent pump applications across a range of marine engines and generator sets. Regular replacement helps maintain correct cooling water flow and reduces the risk of overheating caused by worn or damaged impeller vanes.

As impeller specifications can vary by pump model rather than engine brand alone, it is important to confirm compatibility using the pump reference, existing impeller code or dimensions before installation.

Compatibility & Applications

• Designed for Johnson Pump F35 series raw water pumps

• Replaces equivalent impellers such as Jabsco 22405-0001

• Commonly found on marine engines and generators including (but not limited to):

  • Volvo Penta installations using compatible Johnson/Jabsco pumps

  • Westerbeke engines with F35-type raw water pumps

  • Onan and other marine generator sets using equivalent pump specifications

Always verify your pump model or existing impeller reference before ordering.

Key Features

• Genuine replacement impeller 09-808B-1

• Maintains correct raw water flow

• Essential for engine and generator cooling

• Flexible rubber construction

• Suitable for marine cooling systems

Features:

• 12V DC submersible freshwater pump

• Flow rate: approx. 10, 15 or 20 litres per minute depending on model

• Quiet and energy-efficient operation

• Ideal for use with taps, showers, or portable tanks

• Compact and corrosion-resistant construction

• Suitable for continuous or intermittent use

Perfect for: Marine, caravan, and RV freshwater systems.

Features:

• 12V freshwater pump ideal for single-outlet systems

• Quiet, smooth pressure delivery

• Low power consumption

• Self-priming for easy installation

• Dry-run protection

• Space-saving compact design

• Ideal for motorhomes

Features:

• 12V freshwater pressure pump

• Suitable for multi-outlet water systems

• Smooth, pulsation-minimised water flow

• Quiet and energy-efficient

• Self-priming design for easy installation

• Integrated protection against running dry

• Ideal for motorhomes