Yamada 770628 Diaphragm - Genuine AODD Pump Replacement Part

Genuine Yamada America replacement diaphragm, part number 770628, for Yamada air-operated double diaphragm (AODD) pumps.

The diaphragms are the pump's main flexing members: air pressure drives them back and forth to move fluid through the chambers. A torn, cracked, or fatigued diaphragm causes lost flow, fluid in the air exhaust, or a pump that won't stroke.

• Fits: confirm against your pump's Yamada parts list — diaphragm part numbers are specific to pump series and elastomer material
• MPN: 770628  |  Brand: Yamada America

Your Yamada model number ends in a letter that identifies the elastomer (C = Neoprene, N = Buna-N, E = EPDM, V = Viton, T = PTFE). Match that letter before ordering, and check a chemical compatibility chart for your specific fluid.

Not sure it's the right part? Send us your exact Yamada model number before you order and CLR Marine's team will confirm fit — we're a veteran-owned marine parts supplier and would rather you get the right part the first time.