World Map Image

- Home

- Alternators

- Starter Motors

- Brochures
   - Alternators
   - Mixed Products
   - Starter Motors

- Cross Reference

- Application Guide

- Parts Breakdowns

- Contact Us

Get Adobe Acrobat
We make extensive use of Adobe© Acrobat© files on this website. It's Free!, just click on the link above to download.

MDA3921 - Product Details

  • 3D Photo
    MDA3921 3D Photo
  • Front Photo
    MDA3921 Front Photo
  • Rear Photo
    MDA3921 Rear Photo
  • Side Photo
    MDA3921 Side Photo
  • Front Dim Drawing
    MDA3921 Front Dim Drawing
  • Rear Dim Drawing
    MDA3921 Rear Dim Drawing
  • Side Dim Drawing
    MDA3921 Side Dim Drawing
  • Output Curve
    MDA3921 Output Curve
  • Wiring Diagram
    MDA3921 Wiring Diagram
Product Specifications
Spec Value
Item number MDA3921
Sales number 110-873
Series number MDA/P
Special Note Conditions Of Usage
Warning: Prestolite Products are not approved for Aviation applications!
New, Pending supercedence
Fix circle (Mount): 90mm
Fix circle (Adjuster): 90mm
Bracket angle: 60°
Cut in speed: 1400, Max speed: 8000
Weight: 6.80kg
System voltage 24
Output 80
Mounting style BOSCH MT
Dimensions in INCHES
Housing coating RAW
UL Approved No
Mounting bolt size .320
Spool length 2.2
Positive stud size M8
Negative stud size M6
Rectifier location INTERNAL
Shaft diameter 17 MM
Excitation type Self Excite
Regulator location Integral
Regulator number 8RG3119
Diode trio No
Pulley included No
Lamp driver No
Adjustable regulator No
Remote sense No
Smart check No
Batteryless No
Region Priority / Status
USA / Canada Not currently available
United Kingdom / Europe Not currently available
Technical Bulletins
Title / Link Description
MDA-MDP Hardware Kit Hardware Kit for the MDA-MDP series alternators service parts
TSB-3019_MDA-MDP_Hardware.pdf (698 kb)
Remote regulator conversion for MDA-MDP models This TSB covers the procedure for converting an internal regulated alternator to use an external regulator.
TSB-1116_MDA_MDP remote reg conversion.pdf (1.3 mb)
Parts Breakdown
Title / Link Description
MDA-MDP service parts list SP1018 service parts list for MDA/MDP alternators
SP1018_MDA-MDP_parts_list_web.pdf (1.4 mb)
Numbers Our Customers Use
CompanyPart number
<< Go Back Comments / Suggestions print icon Print friendly page

Product Search