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8MR3301G - High Output Alternator

  • 3D Photo
    8MR3301G 3D Photo
  • Front Photo
    8MR3301G Front Photo
  • Rear Photo
    8MR3301G Rear Photo
  • Side Photo
    8MR3301G Side Photo
  • Front Dim Drawing
    8MR3301G Front Dim Drawing
  • Rear Dim Drawing
    8MR3301G Rear Dim Drawing
  • Side Dim Drawing
    8MR3301G Side Dim Drawing
  • Output Curve
    8MR3301G Output Curve
  • Wiring Diagram
    8MR3301G Wiring Diagram
  • Label
    8MR3301G Label
Product Specifications
Spec Value
Item number 8MR3301G
Sales number 110-486
Series number 8MA-8MH-8MR
Special Note Conditions Of Usage
Warning: Prestolite Products are not approved for Aviation applications!
Notes External Sense,Ignition Excite,Corrosion Protected
System voltage 24
Output 40
Mounting style SPOOL
Dimensions in INCHES
Housing coating E-COAT
UL Approved No
Mounting bolt size 10.1-10.4MM
Spool length 2
Mounting ear size M8 X 1.25 (1 HOLE)
Mounting holes 1
Positive stud size M6 X 1.0
Negative stud size M5 X .8
Rectifier location INTERNAL
Shaft diameter 17 MM
Excitation type Ignition Excite
Regulator location Integral
Regulator number 8RG3066
Diode trio Yes
Pulley required No
Lamp driver No
Adjustable regulator No
Remote sense Yes
Smart check No
Batteryless No
Region Priority / Status
USA / Canada Not currently available - Discontinued
United Kingdom / Europe Limited (W)
Technical Bulletins
Title / Link Description
8MR Hardware Kit Hardware components for 8MR series alternators
TSB-3021_8MR_Hardware.pdf (1.7 mb)
Parts Breakdown
Title / Link Description
8MR Service Parts List Service parts list for 8MR series alternators
SP1023_8MR_parts_list_web.pdf (2.6 mb)
Other Numbers We Use
Type Number
National stocking number 2920-01-331-3567
National stocking number 2920-01-341-6985
Numbers Our Customers Use
CompanyPart number
MACK TRUCKS INC 2742 5034-110486
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