Genuine Wilden AODD Diaphragm Pumps & Spare PartsWilden T15 Valve Seat 15-1120-51 (Neoprene)
15-1120-51 is a neoprene valve seat for the Wilden T15 — the surface each check ball lands on. Wear here mimics a bad check ball closely.

Genuine Wilden AODD pumps for marine and shipboard service — corrosion-resistant, sealless, and safe with no electrical ignition source. In stock.
| Flow Rate | model-dependent (1/2-inch–3-inch range) |
|---|---|
| Head | up to 86 m (8.6 bar / 125 psi) |
| Power | air-operated (no electrical ignition source) |
| Inlet / Outlet Diameter | 1/2-inch–3-inch (13–76 mm) |
| Material | stainless steel, plastic, conductive |
A ship is a hostile place for a pump — constant saltwater and spray, cramped spaces, and fluids that range from seawater to fuel to chemicals. Air-operated diaphragm pumps earn their keep aboard because there’s no electric motor to fail or spark, they run dry when a bilge empties, and stainless or plastic builds shrug off the salt.
From bilge and ballast to fuel transfer and tank cleaning, a properly specced Wilden handles shipboard duty without the corrosion and electrical worries of a motor-driven pump.
We supply these genuine, with the material and any hazardous-area rating matched to the service. Tell us the fluid and where aboard it’s going and we’ll spec it.
Genuine Wilden AODD Diaphragm Pumps & Spare Parts15-1120-51 is a neoprene valve seat for the Wilden T15 — the surface each check ball lands on. Wear here mimics a bad check ball closely.
Genuine Wilden AODD Diaphragm Pumps & Spare Parts15-1010-51 is the primary neoprene diaphragm for Wilden’s 3″ T15 pumps — the part that actually flexes to move fluid on every stroke.
Genuine Wilden AODD Diaphragm Pumps & Spare Parts15-3520-52 is the Buna-N center block gasket on the Wilden T15. Cheap, easy to overlook, and often blamed on other parts when it leaks.