Yamada 710271 Polypropylene Center Rod for NDP-25
The Yamada 710271 is a genuine Yamada center rod, Polypropylene, used in NDP-25 series air-operated double diaphragm (AODD) pumps. It is the shaft that connects the pump's two diaphragms through the center block, so that air pressure driving one diaphragm on its power stroke simultaneously pulls the opposite diaphragm through its suction stroke. It is a precision-machined part, and any bend, corrosion, or wear on its sealing surface will cause the diaphragm seals to leak.
Genuine Yamada replacement parts are machined and molded to the original factory tolerances, so fit, alignment and seal engagement match the component being replaced. One per pump. Always compare the exact part number against your pump's nameplate before ordering, since Yamada varies internal components by both pump size and body material / elastomer combination.
Key Features
- Genuine Yamada replacement center rod
- Material: Polypropylene
- Fits NDP-25 series AODD pumps
- One per pump
- Molded or machined to factory tolerances for correct fit and seal engagement
Applications
- NDP-25 series AODD pump service and rebuilds
- Scheduled preventive maintenance
- Restoring lost flow, leaks, or erratic cycling
- Marine, industrial, chemical and wash-down service
Specifications
- Brand: Yamada
- Manufacturer: Yamada America
- Manufacturer Part Number: 710271
- Part Type: Center Rod
- Material: Polypropylene
- Fits: NDP-25 Series
- Condition: New
Frequently Asked Questions
Q: Is this a wear item or does it last the life of the pump?
That depends on the specific component, but as a rule any part that moves, reciprocates, or seals against another part should be inspected whenever the pump is opened for service and replaced if it shows wear, scoring, or play.
Q: Can I install this myself, or does it need a service technician?
Most Yamada AODD pump components are designed for field service with basic hand tools, following the torque sequence and reassembly order in the pump's maintenance manual.
Q: How do I know this is the right part for my pump?
Match the part number to the exact model and suffix on your pump nameplate, since Yamada pumps of the same nominal size can use different internal components depending on the body material and diaphragm elastomer ordered.
Q: Do I need any other parts to complete this repair?
Depends on what you are replacing this alongside. Anything the pump was disassembled to reach - gaskets, O-rings, seals - should be replaced as a set rather than reused, even if this is the only part that visibly failed.
Not sure this is the right part? Send us a picture of your Pump Plate to https://www.clrmarine.com/Contact-Us and the CLR Marine team will confirm the correct center rod.
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