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OEM Diaphragm Buna-N Repair Kit Parts for 1 Inch Yamada Pump K25-MN-1

SKU: YP-K25-MN-1
Quick Overview: 
  • Repair kit for NDP-25BAN Yamada Pump
  • Includes Diaphragms, Ball Valves and O-Rings
  • Made from Buna N Materials
1" Dual Diaphragm Yamada Pump Buna-N Repair Kit
List price: $259
Free Shipping to lower US 48
Estimated Dates To Leave Warehouse: 

Feb. 25 - 27

In Stock
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This Repair Kit is an OEM part from Yamada that will fit our 1" Yamada Diaphragm Pump and includes replacement diaphragms, balls and O-Rings.

We only sell the Buna-N materials of this replacement kit which is a great material for the sealcoating industry because it holds up well to coal tar, asphalt emulsions and most importantly aggregates like sand.


We sell the "Buna-N" material in this replacement kit which we've found to do a great job with asphalt emulsion and coal tar sealers, and the Buna N holds up great with sealers that have abbrasives.

Yamada NDP-25BA Teardown Video


  • 2 x Diaphragm 25N-PP (772962)

  • 2 x O-Ring (640134)

  • 4 x O-Ring (640044)

  • 4 x Ball 25N (770581)

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Part Compatibility List

1" Dual Diaphragm Yamada Pump Buna-N Repair Kit is compatible with the following product(s).

Shipping Weight
Weight: 3 lb
Shipping Dimensions
Dimensions: 8 in × 8 in × 8 in