1277670 - High Output Alternator

  • 3D Photo
    1277670 3D Photo
  • Front Photo
    1277670 Front Photo
  • Rear Photo
    1277670 Rear Photo
  • Side Photo
    1277670 Side Photo
  • Front Dim Drawing
    1277670 Front Dim Drawing
  • Rear Dim Drawing
    1277670 Rear Dim Drawing
  • Side Dim Drawing
    1277670 Side Dim Drawing
  • Output Curve
    1277670 Output Curve
  • Wiring Diagram
    1277670 Wiring Diagram
Product Specifications
Spec Value
Item number 1277670
Sales number N/A
Series number AC172R/RA/TRA
Notes 172 mm frame
New, 12.3, 12.38, 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 DUAL FOOT
Dimensions in MILLIMETERS
Housing coating RAW
UL Approved No
Positive stud size M8X1.25
Negative stud size M8X1.25
Rectifier location INTERNAL
Shaft diameter 30 MM
Excitation type  
Regulator location  
Regulator number  
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
Product status
Status Number
Superseded by 1277A670
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
AC-DELCO 19025335  
BOSCH 0-120-689-505  
BOSCH 0-120-689-506  
BOSCH 0-120-689-526  
BOSCH 0-120-689-542  
BOSCH 0120689505  
BOSCH 0120689526  
BOSCH 0120689530  
BOSCH 38290  
BOSCH 39140  
BOSCH BX39140  
BOSCH EXCHANGE 0986039140  
HELLA 8EL737363001  
HELLA CA4020  
KÄSSBOHRER 7421345000  
OREM ALT1148  

©Copyright 1996-2014 Prestolite Electric Inc


The information supplied could contain technical, typographical or other inaccuracies, and Prestolite assumes no responsibility for errors on this website or on other documents that are referenced by or linked to the publications on this site.

Questions regarding this information should be directed to the customer service division nearest you. Contact information can be found at our website at http://www.prestolite.com/pgs_contact/contact_0.php.