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1277650 - High Output Alternator

  • 3D Photo
    1277650 3D Photo
  • Front Photo
    1277650 Front Photo
  • Rear Photo
    1277650 Rear Photo
  • Side Photo
    1277650 Side Photo
  • Front Dim Drawing
    1277650 Front Dim Drawing
  • Rear Dim Drawing
    1277650 Rear Dim Drawing
  • Side Dim Drawing
    1277650 Side Dim Drawing
  • Output Curve
    1277650 Output Curve
  • Wiring Diagram
    1277650 Wiring Diagram
Product Specifications
Spec Value
Item number 1277650
Sales number N/A
Series number AC172R/RA/TRA
Special Note Conditions Of Usage
Warning: Prestolite Products are not approved for Aviation applications!
Notes New, M12, 12.3, M12
Fix circle (Mount): 120mm
Fix circle (Adjuster): 120mm
Bracket angle: 60°
Cut in speed: 990, Max speed: 8000
Weight: 15.0kg
System voltage 24
Output 140
Mounting style SWUNG (RH)
Dimensions in MILLIMETERS
Housing coating RAW
UL Approved No
Positive stud size M8
Negative stud size M8
Rectifier location INTERNAL
Shaft diameter 30 MM
Excitation type  
Regulator location  
Regulator number  
Diode trio No
Pulley required No
Lamp driver No
Adjustable regulator No
Remote sense No
Smart check No
Batteryless No
Region Priority / Status
United Kingdom / Europe Not currently available - Superseded
Product status
Status Number
Superseded by 1277A650
Technical Bulletins
Title / Link Description
AC172TRA Alternator Pulley Fitment Pulley fitment on the AC172TRA alternators for mercedes Benz Citaro/
TSB4034_AC172TRA_2_specialnut.pdf (532 kb)
Parts Breakdown
Title / Link Description
AC172 Service Parts List Service parts list for AC172RA-TRA series alternators
SP4007_AC172RA-TRA_Series.pdf (1.8 mb)
Title / Link Description
AC172RA Alternator Series AC172RA alternator series replacements for Bosch T1 alternators.
FL4185_4_AC172RA.pdf (1.1 mb)
Cross Reference Numbers
CompanyPart numberComment
AVF VG2007  
BOSCH 0-120-689-567  
BOSCH 0120689506  
BOSCH 0120689567  
DELCO REMY 19025336  
ISKRA 11203238  
ISKRA IA1102  
MERCEDES BENZ 0071541902  
MERCEDES BENZ 0091547202  
MERCEDES BENZ 0091547702  
OREM ALT1138  
SHELHURST 556033140  
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