Total Power Parts 400-12424 12V 100A Alternator Compatible With/Replacement For Chevrolet Astro 1986 Blazer 1987-1988 1991 G20 1991-1993 G30 1991-1993 321-1041 321-278 321-279 321-304 Clockwise

**Verify part fits before purchasing**Specs:Unit Type: AlternatorVoltage: 12Rotation: CWAmperage: 100Clock: 11Pulley Class: S5Regulator: IRFan Type: EFReplaces OEM Numbers: AC DELCO: 321-341, 321-342, 334-2339, 334-2340, 334-2431ARROWHEAD: 400-12424CARGO: 110984, 112635, 112644DELCO: 10463047, 10463048, 10463421, 10480090, 1101465, 1101807, 1101815, 1105718, 1105720J & N: 400-12424LESTER: 7802-11, 7894-11, 8167-11LESTER (OLD): 7891-11, 7892-11NSA: ALT-1308C, ALT-1333CREMY LIGHT DUTY: 20341, 20342, 20380, 21041Compatible With/Replacement For: CHEVROLET: BLAZER 1987-1988, C / K / R / V SERIES PICKUPS 1987-1988, P SERIES TRUCKS 1987-1995, SUBURBAN 1987-1988CHEVROLET / GMC: P-Series Trucks Vans Etc. 1987-1995GMC: C / K / R / V SERIES PICKUPS 1987-1988, JIMMY 1987-1988, P SERIES TRUCKS 1987-1995, SUBURBAN 1987-1988

• Specs: Alternator, Voltage: 12, Amperage: 100, Rotation Direction: Clockwise, Regulator Location: Internal, Pulley Type: Solid, Pulley Outer Diameter: 2.323"
• Replaces OEM Numbers: AC Delco Tools: 321-1041, 321-278, 321-279, 321-304, 321-309, 321-341, 321-342, 321-471, 334-2290, 334-2291, 334-2304, 334-2322, 334-2339, 334-2340, 334-2431, 335-1010, 335-1223; Arrowhead: ADR0017, ADR0119, ADR0119-220
• Compatible With/Replacement For: Chevrolet Astro 1986, Blazer 1987-1988, 1991, G20 1991-1993, G30 1991-1993, P20 1987-1989, P30 1987-1996, R10 1987, R10 Suburban 1987-1988, R1500 Suburban 1991, R20 1987-1988, R20 Suburban 1987-1988
• ENGINEER-TESTED EXCELLENCE: All of our wiring products go through a rigorous testing program developed by prestigious engineers to ensure optimal output and performance.
• MECHANICS CHOICE: Our key to success is selling parts that fit and perform like the originals, which is why beginner and professional mechanics make us their top choice. We offer electrical parts and motors for your car, electric lawn mower, truck, boat, PWC, motorcycle, ATV, tractor or virtually anything you ride or drive.