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Valeo 501821 Alternator
| Brand | Valeo 501821 |
|---|---|
| Voltage | 14 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| Pulley Included | Yes |
| Family | Matching quality |
| Pulley Groove Quantity | 6 |
| Terminal Quantity | 2 |
| Pulley Belt Type | Serpentine |
| Regulator Type | Internal |
| Amperage Rating | 150 |
| Connector Gender | Female |
| Product line | Alternator |
| Fits | Cadillac · 7 vehicles |
OE-quality design. Built for seamless fitment and dependable charging performance.
100% new unit. Never remanufactured for a clean replacement solution.
Integrated charging specs. 14-volt, 150-amp output with internal regulation and fan.
Cross-references Anchor 10229, Gates 22059 and Walker Products 210-1015 for the same application. See all 8.
OE-Style Charging Performance
The Valeo 501821 alternator is a 14-volt charging unit built for reliable electrical output and OE-style fitment. It is a new alternator, not remanufactured, and uses an internal regulator with a clockwise rotation for consistent operation.
- 150-amp output for steady charging performance
- Internal fan and internal regulator for integrated design
- 6-groove pulley with serpentine belt drive
- Female 2-terminal connector for direct electrical connection
- Designed for seamless OE fitment
Built for Cadillac Charging Systems
This Valeo alternator 501821 is engineered for Cadillac ATS and Cadillac CTS applications with confirmed fitment across multiple model years. Fits 2013-2014 Cadillac ATS, Alternator; Fits 2015 Cadillac ATS, Alternator with Start/Stop Feature; Fits 2016-2017 Cadillac ATS, Alternator; Fits 2014-2015 Cadillac CTS, Alternator. This part cross-references Gates (e.g., 22059) for the same application.
Valeo’s Alternator line focuses on OE-quality electrical replacement parts for modern charging systems. The 501821 reflects that product line approach with new construction, tested durability, and output engineering intended to maintain charging efficiency without increasing unit size.
Common Replacement Issues
- Battery warning light caused by weak charging output
- Dim lights or unstable electrical performance
- Charging system noise from a worn alternator
- Failure to maintain voltage under electrical load
- Start/stop charging concerns on equipped applications
Installation Notes
Verify pulley style, connector type, rotation direction, and amperage rating before installation. Confirm the vehicle’s charging system configuration, especially on Cadillac ATS models with Start/Stop Feature. Match the alternator to the listed fitment and electrical specifications before replacement.
Quality Assurance
Valeo has supplied automotive electrical systems since 1923. This alternator is tested for extended thermal, vibration, and electrical durability, and it is built as a 100% new unit for dependable service.
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|---|
| 2017 | Cadillac | ATS | — | 3.6L | V6 | GAS | Alternator |
| 2016 | Cadillac | ATS | — | 3.6L | V6 | GAS | Alternator |
| 2015 | Cadillac | ATS | — | 2.5L | L4 | GAS | w/ Start/Stop Feature; Alternator |
| 2015 | Cadillac | CTS | Automatic | 3.6L | V6 | FLEX | Alternator |
| 2014 | Cadillac | ATS | — | 3.6L | V6 | FLEX | Alternator |
| 2014 | Cadillac | CTS | Automatic | 3.6L | V6 | FLEX | Alternator |
| 2013 | Cadillac | ATS | — | 3.6L | V6 | FLEX | Alternator |
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