// IMG 1 OF 1BOSCH 13771

Specifications

Output125
Voltage12
TypeAlternator
DesignIR/IF
RotationCW
ManufacturerBOSCH
PulleyS6
Pulley groove OD57
Plug code314
Plug clock2
Lester number13771
PIC code220-5031
NotesThis is a 125A Mexican Built Bosch Alternator for the 1999 Chevrolet Venture, Oldsmobile Silhouette, and Pontiac Montana. The 105A Version is the 13770. This Unit Uses a 6-Groove Pulley. A Problem May Exist With The Interior And Exterior Lights Varying in Brightness Due to a Bad Voltage Regulator Ground Screw on the Back of the Alternator. A Good, Tight Connection is Needed Between the Regulator and the Rear Housing of the Alternator Through This Ground (Hold-Down) Screw. GM Has a Screw (P/N 10316685 - Kit ) Available, if Necessary. The Valeo 13943 Used on Later Models, And This 13771, Are Direct Replacements for Each Other.

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 CarImpalaV6 3.8L 3800cc 231cid2000–2005Car · domestic
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
Chevrolet - Europe CarIMPALA SaloonEng.L36 3.8 V6 149kw L361999–2005Europe Car · international
ChevroletVenture—1999–2001domestic
PontiacMontana—1999–2002domestic
ChevroletImpala—2000–2005domestic
OldsmobileSilhouette—1999–2001domestic
PontiacTrans Sport—1999–1999domestic
ChevroletMonte Carlo—2003–2005domestic

Cross-reference

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

WAI New13771N
Bosch6 004 ML0 017, 6 004 ML0 021
Bosch RemanufacturedAL8501X
Delco10288764, 10344573
DelphiRM3334
GM10288764, 10344573, 10418889
Lester13771
Lucas Electrical EuropeLRA02894
Mercedes-Benz000-154-15-57