Description
12MP025M6CA3 Timing Pulley, 12 Teeth, MXL Pitch, 3 mm Bore
The 12MP025M6CA3 is a 12-tooth MXL (0.080 in trapezoidal) timing pulley with a 3 mm 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 | 12MP025M6CA3 |
| Teeth | 12 |
| Pitch | MXL (0.080 in trapezoidal) |
| For Belt Width | 0.25 in |
| Pitch Diameter | 0.3056 in |
| Outside Diameter | 0.2856 in |
| Bore | 3 mm finished bore |
| Face Width | 0.33 in |
| Construction | Standard Hub Serves as 2nd Flange |
| Set Screws | 1 x M2 |
| Flange Material | Aluminum |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.0063 lb |
| Country of Origin | India |
Applications
- Instrumentation, office equipment, and precision positioning drives
- 3D printers and desktop CNC equipment
- Robotics, medical devices, and packaging machinery
Belt Compatibility
The 12MP025M6CA3 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 12MP025M6CA3 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Mitsuboshi | 12-MP025M-6CA3 |
| Stock Drive Products (SDP/SI) | A 6A16M012DF6003 |
| McMaster-Carr | 1375K173 |
| Powerdrive | 12MP025M6CA3 |
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 12MP025M6CA3 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 12MP025M6CA3 replace the Mitsuboshi 12-MP025M-6CA3?
Yes. Published interchange data crosses the 12MP025M6CA3 directly to the Mitsuboshi 12-MP025M-6CA3, as well as Stock Drive Products A 6A16M012DF6003, McMaster-Carr 1375K173, Powerdrive 12MP025M6CA3. Verify dimensions and bore before ordering.
Does the 12MP025M6CA3 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 12MP025M6CA3?
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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