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Product Details

  • 3D Photo
    M125R2001SEP 3D Photo
  • Front Photo
    M125R2001SEP Front Photo
  • Rear Photo
    M125R2001SEP Rear Photo
  • Side Photo
    M125R2001SEP Side Photo
  • Front Dim Drawing
    M125R2001SEP Front Dim Drawing
  • Rear Dim Drawing
    M125R2001SEP Rear Dim Drawing
  • Side Dim Drawing
    M125R2001SEP Side Dim Drawing
  • Output Curve
    M125R2001SEP Output Curve
  • Wiring Diagram
    M125R2001SEP Wiring Diagram
  • Label
    M125R2001SEP Label
Product Specifications
Spec Value
Item number M125R2001SEP
Sales number M125601
Series number M125
Special Note Conditions Of Usage
Warning: Prestolite Products are not approved for Aviation applications!
System voltage 12
kW 8.0
Dimensions in MILLIMETERS
Housing coating PAINTED
UL Approved No
Pinion teeth 11
Pinion pitch 6/8
Pinion OD 46.5
Pinion at rest 48.5
Span over 2 teeth 20.3
Flange type SAE J542 Type 3
Flange image
Switch position 82.5°
Helper Relay 90
Ignition terminal M5
Battery terminal 1/2-13
Ground terminal 1/2-13
Wetclutch No
Overcrank Protection Yes
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M125R2001SEPN Exact Match
Region Priority / Status
Not currently available in the US or Europe. Contact us for additional information
Technical Bulletins
Title / Link Description
M125 Relay change The procedure for changing the M125 relay.
TSB-1143_M125_Relay_Change_Procedure.pdf (445 kb)
M125 starter parts list M125 starter motor service parts list
TSB-3016_M125_Starter_Motor-hardware.pdf (396 kb)
M125R Nose Housing Changeout Shows the steps necessary to change the nose housing in those early production units that have the clearance issue.
TSB-1067_M125R_Nose_Changeout.pdf (194 kb)
M125R Nose Housing Interference Early production units of the M125R may not fit properly in a limited number of engines. This TSB explains the issue and shows the housings.
TSB-1066_M125R_Nose_Housing.pdf (272 kb)
M125R Wiring/Terminal Identification This TSB describes the wiring procedure for an M125 when compared to our own MS2 or a Delco 42MT (for M125 models manufactured in 2010 and later).
TSB-1063_A_M125R_starter.pdf (325 kb)
Parts Breakdown
Title / Link Description
M125R starter motor parts list Titan 125 starter motor service parts list
SP1015_M125R_parts_list_web.pdf (1.3 mb)
Title / Link Description
M125 Nosed and Noseless Starter Motors M125R nosed and noseless starter motors.
M125_Starter_12V_FL1156.pdf (860 kb)
Titan 125 Starter Sell Book The Sell Book provides detailed information about the 12 volt and 24 volt models of the M125 starter motors. Sell Books are geared toward sales representatives, providing details on advantages of the M125 starter over competitive products.
PP1258_Titan125_Series_Sell_Book.pdf (2.2 mb)
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