Alternator for GMC Sierra 1999
Alternator for GMC Sierra 1999
SKU:400-12172
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Chevrolet Alternator
Fits RAINIER, ESCALADE, ESCALADE ESV, ESCALADE EXT & More (130 Amp)
Keep your Chevrolet running with this 130 Amp 12V replacement alternator. Designed as a direct-fit replacement for the auto and light truck, truck listed below, it delivers reliable charging for standard and accessory electrical loads.
This unit features an internal fan (IF) and an internal regulator (IR), and is supplied with a 1272 pulley already fitted.
Key Features
- ✔High Capacity: 130 Amps of charging output.
- ✔Direct Replacement: Replaces AC Delco 321-1749.
- ✔Pulley Fitted: 1272 pulley installed and ready to fit.
- ✔Robust Design: IF fan. IR regulator.
- ✔Quality Assured: New aftermarket unit, 12 month warranty.
Technical Specs
| Voltage: | 12 Volts |
| Amperage: | 130 Amps |
| Rotation: | CW (Clockwise) |
| Pulley: | 1272 |
| Regulator: | Internal (IR) |
| Fan Type: | Internal (IF) |
| SKU Reference: | 400-12172 |
Vehicle Fitment Guide
| Make | Equipment Type | Models | Years |
|---|---|---|---|
| Buick | Auto And Light Truck | RAINIER | 2004–2006 |
| Cadillac | Auto And Light Truck | ESCALADE, ESCALADE ESV, ESCALADE EXT | 2002–2006 |
| Cadillac | Truck | Escalade | 2002 |
| Chevrolet | Truck | Avalanche, Avalanche 1500, Avalanche 2500, C Series, C3500, C3500HD, K Series, R Series, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silver | 1999–2002 |
| Chevrolet | Auto And Light Truck | AVALANCHE 1500, AVALANCHE 2500, C / K / R / V SERIES PICKUPS, Express 1500, Express 2500, Express 3500, EXPRESS VANS, SILVERADO 1500, Silverado 1500 Classic, SILVERADO 1500 HD, Silverado 1500 HD Classic, SILVERADO 2500, SILVERADO 2500 HD | 1999–2016 |
| Chevrolet | Medium & Heavy-Duty Truck | C Series, C6500 Kodiak, C7500 Kodiak | 2001–2002 |
OEM Part Number Cross Reference
| AC Delco | 321-1749, 321-1803, 321-1813, 321-1816, 321-2123, 334-2481, 334-2481A, 334-2517 |
| ACE | CA8234-4-14, CA8235-4-14 |
| Arrowhead | ADR0279, ADR0217, 400-12172 |
| Barsanco | 110-8237 |
| Cargo | 112853 |
| Delco | 10464405, 10464443, 10464453, 10464456, 10480234, 10480390, 15750871, 15768830 |
| Delphi | RM1366 |
| Dixie | A-1549 |
| Dixie NEW | A-1549N |
| EMS | 8237N |
| Family | AD244 |
| J&N Electrical Products | 400-12172 |
| Lester | 8237, 8274 |
| Minnpar | 47-1921, 47-1964 |
| Napa Power NEW | 1N-4801 |
| Napa Power Premium Plus | 213-4801, 213-4807, 213-4811 |
| Napa Power Supreme | 13-4801, 13-4807, 13-4811 |
| NSA | ALT-1500 |
| PIC | 240-6410, 240-6410A, 240-6410B, 240-6418 |
| RCP | 42934 |
| Remy Light Duty | 21749, 21816 |
| Remy Light Duty NEW | 91606, 91608 |
| Unipoint | ALT-1500 |
| USA Industries | 8237 |
| Wagner | 423016 |
| WAI | 1-2221-21DR, 1-2419-21DR |
| Wilson | 90-01-4385, 90-01-4386, 90-01-4682 |
| Wilson HD | 90-01-4385 |
| Wilson NEW | 90-01-4385, 90-01-4385N, 90-01-4682 |
Frequently Asked Questions
Will this fit my Chevrolet RAINIER?
Yes — the RAINIER appears in the fitment guide above. Check your existing part number against the cross reference table to confirm.
Is this a 130 Amp alternator?
Yes, this is a 130 Amp 12V unit with an IR regulator.
Is the pulley included?
Yes, a 1272 pulley is pre-installed.
Is this new or remanufactured?
This is a brand new aftermarket unit — not a remanufactured core.
Note: Please verify your machine's serial number or existing part number to ensure compatibility.
Fast shipping available across the UK and Europe.
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