Dishwashers · parts
GE GDT535PSMBSS wash pump service kit: WD19X26918 superseded
GE's GDT535PSMBSS MOTOR, SUMP & FILTER ASSEMBLY diagram identifies item 310 as pump wash main assembly WD19X26918 and explicitly replaces it with WD19X27178. The same exact-model diagram lists drain pump WD19X25461 at item 325, fine filter WD12X25995 at item 451, and coarse filter WD22X25465 at item 502. This distinguishes the wash-pump service kit from the drain pump and filter in an exact GE model lookup.
Safety boundary
- The wash-pump service kit is an internal powered and water-bearing component; use qualified service. Disconnect power/water only under the exact service procedure and do not probe the appliance while energized.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Required identifiers
- Complete model: GDT535PSMBSS
- Diagram item 310 pump wash main assembly: WD19X26918
- GE supersession: WD19X27178
- Item 325 drain pump WD19X25461 is separate
Compatibility rules
- The exact GDT535PSMBSS diagram maps item 310 WD19X26918 to replacement WD19X27178.
- The diagram lists a different drain pump at item 325 and filters at items 451 and 502.
- The exact GE parts page links manuals and installation instructions for GDT535PSMBSS.
- Do not apply this pump mapping to other GDT535 model suffixes.
Never assume
- WD19X27178 is the drain pump.
- A no-drain or poor-cleaning symptom alone confirms the wash pump has failed.
- The pump kit is a consumer-removable filter component.
Exact wash-pump kit
- Model: GDT535PSMBSS.
- Item 310: WD19X26918 pump wash main assembly.
- GE-listed replacement: WD19X27178.
Separate drain/filter parts
The same diagram lists drain pump WD19X25461, fine filter WD12X25995, and coarse filter WD22X25465 separately. A pump part number is not a fault diagnosis.
Exact suffix check
Confirm every character on the appliance label before using the lookup.