// IMG 1 OF 1BOSCH 13770

Specifications

Output105
Voltage12
TypeAlternator
DesignIR/IF
RotationCW
ManufacturerBOSCH
PulleyS6
Pulley groove OD57
Plug code314
Plug clock2
Lester number13770
PIC code220-5030
NotesThis is a 105A Mexican Built Bosch Alternator for the 1999 Chevrolet Venture, Oldsmobile Silhouette, and Pontiac Montana. The 125A Version is the 13771. This Unit Uses a 6-Groove Pulley. It Has Been Reported By Some in the Field That This and the 13989 Are Interchangeable.

Confirmed fitment

Verified applications from the ePartsGlobal catalog. If your engine isn't listed, send us the OEM part number and we'll cross-reference it.

MakeModelEngineYearsApplication
Chevrolet VanVentureV6 3.4L 207cid1999–2001Van · domestic
Oldsmobile VanSilhouetteV6 3.4L 207cid1999–2001Van · domestic
Pontiac VanMontanaV6 3.4L 207cid1999–2001Van · domestic
Pontiac VanTrans SportV6 3.4L 207cid1999–1999Van · domestic
ChevroletVenture—1999–1999domestic
PontiacMontana—1999–1999domestic
OldsmobileSilhouette—1999–1999domestic
PontiacTrans Sport—1999–1999domestic

Cross-reference

OEM and aftermarket part numbers that interchange with this unit, from the ePartsGlobal catalog.

WAI New13770N
Bosch6 004 MA5 008, 6 004 MA5 011
Bosch RemanufacturedAL8776X
Bosch Remanufactured OldAL8502X
DelphiRM3276
GM10288763, 10418888
Lester13770