Description
20MP025-IA3 Timing Pulley, 2 Teeth, MXL Pitch, 1/4 in Bore
The 20MP025-IA3 is a 2-tooth MXL (0.080 in trapezoidal) timing pulley with a 1/4 in finished bore, machined from aluminum with a clear anodized finish, built for 0.25 in wide belts. Machined from solid stock, never sintered or powdered metal.
$50 minimum order on drive components. Mix and match any pulleys, bushings, sheaves, sprockets, and accessories in your cart to reach the $50 minimum. Questions? Call (888) 203-2358.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 20MP025-IA3 |
| Teeth | 2 |
| Pitch | MXL (0.080 in trapezoidal) |
| For Belt Width | 0.25 in |
| Pitch Diameter | 0.5093 in |
| Outside Diameter | 0.4893 in |
| Flange Diameter | 0.685 in |
| Bore | 1/4 in finished bore |
| Face Width | 0.389 in |
| Overall Length | 0.563 in |
| Hub Diameter | 0.625 in |
| Construction | EZ Lock Hub Serves as 2nd Flange |
| Flange Material | Aluminum |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.02 lb |
| Country of Origin | United States. ISO 9001:2015 certified manufacturing. |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
Belt Compatibility
The 20MP025-IA3 runs MXL (0.080 in trapezoidal) belts in 0.25 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 20MP025-IA3 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Stock Drive Products (SDP/SI) | A 6D16-020DF2508 |
| York | SAV-20MXL025-1A X 1/4 |
| Powerdrive | 20MP025-IA3 |
Always verify dimensions and bore size before substituting part numbers across manufacturers.
Buying in bulk? Save on volume.
Multi-unit and OEM quantities qualify for volume discounts. Call or email for a quantity quote.
Frequently Asked Questions
What belts fit the 20MP025-IA3 pulley?
MXL (0.080 in trapezoidal) timing belts in 0.25 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 20MP025-IA3 replace the Stock Drive Products A 6D16-020DF2508?
Yes. Published interchange data crosses the 20MP025-IA3 directly to the Stock Drive Products A 6D16-020DF2508, as well as York SAV-20MXL025-1A X 1/4, Powerdrive 20MP025-IA3. Verify dimensions and bore before ordering.
Does the 20MP025-IA3 ship from Houston?
Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.
Need a quote on 20MP025-IA3?
Houston warehouse, same-day shipping on stock items.
Call (888) 203-2358All third-party part numbers and trademarks referenced are the property of their respective owners. References are for compatibility identification only and do not imply affiliation or endorsement.
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