# Proform 66434 | Alternator/ Generator; GM Style; NAT FINISH ALT 1-WIRE ALT

### PROFORM 66434 APPLICATION SPECS:

### Product Description

A manufacturing break-through has enabled PROFORM to offer 100 Percent NEW alternators with the same affordability as our popular re-built models. Each unit is supplied with its own individual Quality Assurance graph documenting its performance and is easily identified by the machined pulley.

### Features & Benefits

-   Features A Natural Satin Finish
-   100 Percent New Components, Not Re-Man Or Refurbished
-   Offset Design For More Oil Pan Clearance
-   1-Wire Hook-Up With Internal Regulator
-   Easy Installation
-   Limited 1 Year Or Unlimited Mile Warranty

### Attributes

-   Condition: New
-   Amperage Output: 100 Amp
-   Voltage: 12 Volt
-   Case Style: GM 10SI
-   Includes Pulley: Yes
-   Pulley Type: V-Belt
-   Wire Type: 1-Wire
-   Includes Regulator: Yes
-   Regulator Type: Internal
-   Finish: Natural
-   Includes Belt: No
-   Includes Brackets: No

PRODUCT FEATURES:

Proform NAT FINISH ALT 1-WIRE ALT

### FAQ

**What part number is this?** The listed part number is 66434.

**Is this product designed for direct replacement?** Confirm the original part specifications and intended application before ordering.

**Should I confirm compatibility before ordering?** Yes. Compare the original part and specifications before ordering.

### Common Searches

-   Proform 66434
-   66434 specifications
-   Proform Alternator/ Generator; GM Style; NAT FINISH ALT 1-WIRE ALT

## Details

- **Price:** 353.84 CAD
- **Vendor:** Proform
- **Type:** Alternator/ Generator
- **Tags:** 66434, Alternator/ Generator, Proform

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 353.84 CAD | In stock |

## Images

- Proform 66434 | Alternator/ Generator; GM Style; NAT FINISH ALT 1-WIRE ALT

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/66434-vp-proform-518)
> Updated: 2026-10-20