Pfister exact part record
Pfister 974-291: application and identification
974-291 is a pressure balancer tied to documented Pfister applications. Confirm the model, generation, and installed geometry before purchase.
Direct answer
Pfister's official 974-2910 record identifies the pressure balancer only for 0X8, JX8, VB8, and JV8 deep-casting valves. This is a source-backed application, not a fit claim based on visual similarity. The product page marks 974-2910 discontinued. Do not call it an Avante cartridge or assume a current replacement without a model-specific Pfister record.
Fit facts
What identifies this match
Use these details together. One matching feature does not establish compatibility.
- Manufacturer
- Pfister
- Service part
- 974-291
- Documented system
- 0X8, JX8, VB8, and JV8 deep-casting tub and shower valves
- Fixture
- Tub and shower valve
- Part type
- Pressure balancer
- Control configuration
- Pressure-balancing component within a single-handle valve
Documented application
Pfister's official 974-2910 record identifies the pressure balancer only for 0X8, JX8, VB8, and JV8 deep-casting valves.
The relationship should be confirmed in the official service record for the complete faucet or rough-in model. A family name or matching trim is useful evidence, but it is not the same as a model-level parts callout.
Generation and configuration check
The product page marks 974-2910 discontinued. Do not call it an Avante cartridge or assume a current replacement without a model-specific Pfister record.
Record whether the control is pressure-balancing component within a single-handle valve and whether the service diagram describes the complete assembly or only the replaceable internal component.
Physical confirmation
Confirm that the repair calls for the pressure balancer alone rather than a complete control cartridge, then compare its spool, ports, and seals.
Shut off the water and remove the existing part only when the fixture can be safely returned to service. Photograph its installed orientation and keep every retainer for comparison.
Purchase decision
Order 974-291 only when the official model relationship and the installed configuration agree. If either check conflicts, pause and identify the complete faucet or concealed valve before buying.
Do not infer compatibility from color, finish, handle style, or a marketplace photo. Those cues can group candidates, but they do not supersede the manufacturer's parts diagram.
Questions
Before you remove or replace the part
Is 974-291 compatible with every Pfister tub and shower valve?
No. Pfister's official 974-2910 record identifies the pressure balancer only for 0X8, JX8, VB8, and JV8 deep-casting valves. Confirm the complete model and generation in Pfister's support material.
Can trim style identify the internal part?
Not reliably. Trim may be shared across valves, retained during updates, or visually similar across generations. Use the rough-in or faucet model and the installed component.
What should I compare after removal?
Compare the stem interface, body dimensions, locating features, seals, ports, rotation or side, and retention method with the official 974-291 service image.
Reference trail