ROBERTSON 100US Rpu Autopilot Control Pump 21101225

( Brand: Robertson ), ( Part Type: Control Pump ), ( Manufacturer Part Number: 100US 21101225 )

Review ROBERTSON Rpu Autopilot Control Pump Part #21101225 fits MARINE

The Robertson Aposition 100US Marine Autopilot Control Pump, model number RPU-21101225, is a crucial component of a marine autopilot system. Designed for use in boats and ships, this control pump ensures the smooth operation of the autopilot system, enabling the vessel to maintain a steady course with minimal human intervention.

The pump is constructed from high-quality materials, including a cast iron housing and a stainless steel impeller, ensuring durability and resistance to the harsh marine environment. The pump's compact size, measuring 7.1 inches in length, 4.3 inches in width, and 4.9 inches in height, makes it an ideal fit for most marine applications.

The RPU-21101225 operates on a 12-volt DC power supply, making it suitable for use on boats and ships without access to shore power. The pump's flow rate ranges from 5.5 to 13 gallons per minute (GPM), depending on the specific requirements of the autopilot system. The pump's maximum pressure rating is 40 psi, ensuring it can handle the demands of most marine applications.

The control pump features a built-in relief valve, which helps protect the system from overpressure and potential damage. The valve automatically opens when the pressure exceeds a certain threshold, releasing excess pressure and preventing any potential harm to the system.

The pump also includes a flexible coupling that allows for some degree of misalignment between the pump and the motor, making installation easier and reducing the likelihood of damage during installation or operation.

The Robertson 100US Marine Autopilot Control Pump is designed to be easy to install and maintain. It comes with a standard 1-1/4 inch NPT threaded inlet and outlet, making it compatible with a wide range of marine hoses and fittings. The pump also features easily accessible service points, allowing for simple maintenance and repair tasks.

Overall, the Robertson Aposition 100US Marine Autopilot Control Pump is an essential component for any marine autopilot system. Its rugged construction, reliable performance, and ease of installation make it a popular choice among boat owners and operators.

The Robertson APS 100US Marine Autopilot Control Pump (model number 21101225 RPU) is a crucial component of a marine autopilot system. It provides the hydraulic power necessary to operate the autopilot rudder. Let's examine some pros and cons of purchasing this particular control pump.

1. High-quality build: Robertson Marine is known for its robust and reliable marine equipment. The 100US Control Pump is no exception, with a heavy-duty cast iron housing and a high-performance diaphragm.

2. Easy installation: The pump comes with all necessary mounting hardware and an installation manual, making it relatively straightforward to install.

3. Compatibility: This control pump is compatible with a wide range of Robertson Marine autopilot systems.

4. Durable diaphragm: The diaphragm is made of a high-quality material that can withstand the harsh marine environment and resist cracking or tearing.

5. Sealed design: The pump's sealed design helps prevent water intrusion and reduces the risk of corrosion.

1. Price: The 100US Control Pump is not the most affordable option on the market, but its high-quality build and durability may justify the investment for serious boaters.

2. Size: The pump is relatively large, which can make installation more challenging in tight spaces.

3. Limited Suitability: While the pump is compatible with various Robertson Marine autopilot systems, it may not be suitable for other brands or models.

In conclusion, the Robertson APS 100US Marine Autopilot Control Pump (model number 21101225 RPU) is a reliable and durable component for marine autopilot systems. Its high-quality build, compatibility with various Robertson Marine systems, and sealed design provide advantages, while the higher price point and size may be disadvantages for some boaters.

If you are looking for a reliable and robust autopilot control pump for your Robertson Marine system, the 100US Control Pump is an excellent choice. However, if budget or space constraints are a concern, there might be other options to consider. Ultimately, the decision depends on your specific boating needs and preferences.

Details:

Manufactured by Robertson, a trusted brand in boat parts, this pump is specifically designed for the RPU 100US model with part number 21101225. The Robertson RPU 100US Marine Autopilot Control Pump is a high-quality boat part designed for Marine autopilot systems.

part #: 100us price

• $425.00

specifications vesselveep:

• for models: Marine
• brand: Robertson
• part type: Control Pump
• manufacturer part number: 100US 21101225

offer vesselveep:

• quantity: 1
• availability: In Stock
• started: April 16, 2026
• sold: 0
• options: Ship-to-home

general vesselveep:

• Parts Accessories > Boat Parts > Other
• condition: Used

seller vesselveep:

• rating: 100.0%
• # reviews: 64
• city: Lake View, New York

payments vesselveep:

• wallet: Apple-pay
• other
• credit card: Diners-club

returns vesselveep:

• time: 14 Days
• paid by: Buyer
• policy: Returns Accepted

shipping vesselveep:

• transit: 5-11 Days
• carrier: USPS
• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• cost: $7.03