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Do not use “A” Gripnotch Belt Ratings with “AL” or “AM” sheaves.
Specifications
- Dimension (In.) K 37/64
- Dimension (In.) L 1-11/16
- Dimension (In.) O.D. 4.15
- 3L Belts Max. Pitch 3.5
- 3L Belts Min. Pitch 2.7
- 3L Belts Turns Open 0
- 4L or A Belts Max. Datum 3.8
- 4L or A Belts Min. Datum 2.8
- 4L or A Belts Turns Open 5
- 5L or B Belts Max. Datum 4.1
- 5L or B Belts Min. Datum 3.1
- 5L or B Belts Min. Turns Open 6
- 5V Belts Max. Pitch 3.5
- 5V Belts Min. Pitch 2.7
- 5V Belts Min. Turns Open 6
- Outside Diameter (In.) 4.15
- Dimension (In.) F Max. 1
- Dimension (In.) F Min. 5/8
- Dimension (In.) G Max. 7/8
- Dimension (In.) G Min. 1/2
- Stock Bore (In.) 5/8
- 3L Belts Min. Turns Open 4
- 3L Belts Max. Turns Open 0
- 4L or A Belts Min. Turns Open 5
- 4L or A Belts Max. Turns Open 0
- 5L or B Belts Max. Turns Open 1
- Pulley Type 1
Specifications
- Dimension (In.) K 21/32
- Dimension (In.) L 1-7/8
- Dimension (In.) O.D. 3.75
- 3L Belts Max. Pitch 3.1
- 3L Belts Min. Pitch 2.3
- 3L Belts Turns Open 0
- 4L or A Belts Max. Datum 3.4
- 4L or A Belts Min. Datum 2.4
- 4L or A Belts Turns Open 0
- 5L or B Belts Max. Datum 3.7
- 5L or B Belts Min. Datum 2.7
- 5L or B Belts Min. Turns Open 6
- Outside Diameter (In.) 3.75
- Dimension (In.) F Max. 1-1/16
- Dimension (In.) F Min. 11/16
- Dimension (In.) G Max. 7/8
- Dimension (In.) G Min. 1/2
- Stock Bore (In.) 1/2
- 3L Belts Min. Turns Open 4
- 3L Belts Max. Turns Open 0
- 4L or A Belts Min. Turns Open 5
- 4L or A Belts Max. Turns Open 0
- 5L or B Belts Max. Turns Open 1
- Pulley Type 1
Maintenance & Troubleshooting:
- Pressure switches are commonly replaced when a furnace or HVAC system will not complete its startup sequence due to pressure/airflow proving issues.
- Customer feedback commonly associates replacement with resolving a "pressure switch" fault condition and restoring normal operation.
- The provided sources do not include diagnostic procedures; follow the equipment documentation for troubleshooting steps and verification before replacement.
User Reviews & Q&A Summary:
- Review themes indicate the part is commonly described as an exact fit and used as a direct replacement to get a furnace running again.
- Several reviews mention the unit returned to normal operation after installation, including clearing a fault condition related to the pressure switch.
- Additional feedback highlights ease of ordering and timely delivery, and notes that this part fit where other attempted parts did not.
Certifications & Compliance:
- Rheem includes a California Proposition 65 warning for this pressure switch kit on its parts listing
- No other separate certifications or listings are explicitly stated for this part in the provided sources
User Reviews & Q&A Summary:
- Common review themes: direct-fit replacement that fixes "no heat" situations and gets the furnace running again, often described as an easy swap once accessed
- Several reviewers note this is an updated version of the original design and may mount differently (users mention included hardware such as a longer screw/spacer to accommodate the revised mounting)
- Q&A themes emphasize that pressure switch ratings/markings are not interchangeable by appearance alone; customers are advised to confirm the correct part by furnace model/serial rather than substituting based on pressure markings
Product Highlights
120v, 120-240V, 240v 
50 AmpsSpecs
| Product Type: | Pulley |
|---|
Reviews
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