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11.203.694,11.203.702,11.204.244,11.204.255,11.204.258,11.204.337,AAN5124,AAN5546|Caterpillar CS78B 2012 4.4L
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20621

LETRIKA (ISKRA)AlternatorIR/IF24V100ACW Rotation

Fits Caterpillar Roller (Static and Vibratory) · 4.4L, 6.6L engines

10 interchanges5 applications2 components

Or call (405) 225-7220 · M–F 8–5 CT

Specifications

Full technical detail

Type
Alternator
Manufacturer
LETRIKA (ISKRA)
Design
IR/IF
Voltage
24V
Amperage
100A
Rotation
CW
Pulley Design
WO/ PULLEY

OEM part numbers

Genuine OEM & engine-manufacturer numbers this alternator replaces

Caterpillar
20R-4763, 378-9640
Letrika (Iskra)
11.203.102, 11.203.502, 11.203.694, 11.203.702, 11.204.244, 11.204.255, 11.204.258, 11.204.337
Letrika (Iskra) Sales
IA 1133, IA0795, IA1133
Letrika (Iskra) Tech.
AAN5124, AAN5546, AAN5595, AAN5597, AAN5806, AAN5836, AAN8156, AAN8167, AAN8170
Mahle
MG 142
Perkins Engine
2871A902, 2871A903, 3789640

Vehicle applications

Fits 5 configurations

5 configurations
Domestic(5)
MakeModelEngineYears
Caterpillar Roller (Static and Vibratory)(Roller (Static And Vibratory))CS66BL4 4.4L 269cid Caterpillar C4.42012–2012
Caterpillar Roller (Static and Vibratory)(Roller (Static And Vibratory))CS76BL4 4.4L 269cid Caterpillar C4.42012–2012
Caterpillar Roller (Static and Vibratory)(Roller (Static And Vibratory))CS78BL6 6.6L 403cid Caterpillar C6.62012–2019
Caterpillar Roller (Static and Vibratory)(Roller (Static And Vibratory))CS78BL4 4.4L 269cid Caterpillar C4.42012–2012
Caterpillar Roller (Static and Vibratory)(Roller (Static And Vibratory))CW34L6 6.6L 403cid Caterpillar C6.62012–2014

Component breakdown

Replacement parts that go inside this unit

ComponentPart numbers
Frame, DE, Alt7682-1002
Regulator & Brush Holder8082-120