The Yanmar Alternator (12V 80A) is designed to deliver reliable charging performance for Yanmar 6LP and 6LPA marine diesel engines. This alternator supplies stable electrical output to support engine operation, battery charging, and onboard electrical systems.

Manufactured to OEM-equivalent specifications, it provides accurate fitment, dependable output, and long service life in marine environments. Suitable for alternator replacement during electrical system service or overhaul.

Product Type

Alternator

Electrical Specifications

Voltage: 12 Volts
Output: 80 Amps

Physical Specifications

Freewheel pulley: No
Pulley diameter: 74 mm
Number of ribs (pulley): 2
B+ connection: M6
Mounting holes: 2

Yanmar OEM / Reference Numbers

119773-77200
119773-77201

Compatibility

Suitable for Yanmar engines:

6LPA Series

6LPA-DTP
6LPA-DTZP
6LPA-STP
6LPA-STZ
6LPA-STP2
6LPA-STZP2
6LPA-STZP3
6LPA-DTZEP1
6LPA-STZEP1
6LPA-STZYJ

6LP Series

6LP-DT
6LP-DTE
6LP-DTZE
6LP-DTZY
6LP-ST
6LP-STE
6LP-STZE
6LP-STZY
6LP-WDT
6LP-WDTZY
6LP-WST
6LP-WSTZY
6LP-DTZE1
6LP-STZE1

6LP-STZE1

Head Gasket Yanmar 6LP Series (Mark 3) – 119771-00411

Head Gasket Yanmar 6LP Series (Mark 5) – 119771-00421

Yanmar Alternator | 12V 80A | 6LP / 6LPA Series | 119773-77200