Description
40MP037-6FA3 Timing Pulley, 4 Teeth, MXL Pitch, 1/4 in Bore
The 40MP037-6FA3 is a 4-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 0.375 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 | 40MP037-6FA3 |
| Teeth | 4 |
| Pitch | MXL (0.080 in trapezoidal) |
| For Belt Width | 0.375 in |
| Pitch Diameter | 1.0186 in |
| Outside Diameter | 0.9986 in |
| Flange Diameter | 1.21 in |
| Bore | 1/4 in finished bore |
| Face Width | 0.53 in |
| Overall Length | 0.844 in |
| Hub Diameter | 0.754 in |
| Construction | Standard Hub |
| Set Screws | 2 x 8-32 |
| Flange Material | Aluminum |
| Material | Aluminum (no sintered or powdered metal) |
| Finish | Clear Anodized |
| Weight | 0.0556 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 40MP037-6FA3 runs MXL (0.080 in trapezoidal) belts in 0.375 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 40MP037-6FA3 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Mitsuboshi | 40-MP037-6FA3 |
| Stock Drive Products (SDP/SI) | A 6A16-040DF3708 |
| Neuman | 40MP-037 1/4 6F |
| York | 40MXL037-1A X 1/4 |
| Powerdrive | 40MP037-6FA3 |
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 40MP037-6FA3 pulley?
MXL (0.080 in trapezoidal) timing belts in 0.375 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.
Does the 40MP037-6FA3 replace the Mitsuboshi 40-MP037-6FA3?
Yes. Published interchange data crosses the 40MP037-6FA3 directly to the Mitsuboshi 40-MP037-6FA3, as well as Stock Drive Products A 6A16-040DF3708, Neuman 40MP-037 1/4 6F, York 40MXL037-1A X 1/4. Verify dimensions and bore before ordering.
Does the 40MP037-6FA3 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 40MP037-6FA3?
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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