# Proform 66866 | 66866 Steel Rocker Shaft; Steel; BB Mopar

### PROFORM 66866 APPLICATION SPECS:

### Attributes

-   Applications: Chrysler Big Block Engines
-   Category: Rocker Arm Shaft
-   Color: Gray
-   Engine: Chrysler Big Block
-   Fasteners Included: No
-   Finish: Machined
-   Make: Chrysler
-   Material: Steel

### Product Description

Engine Rocker Arm Shaft,Fits Big Block Chrysler Engines,One Shaft,Steel

### FAQ

**What part number is this?** The listed part number is 66866.

**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 66866
-   66866 specifications
-   Proform Steel Rocker Shaft; Steel; BB Mopar

## Details

- **Price:** 197.03 CAD
- **Vendor:** Proform
- **Type:** Steel Rocker Shaft
- **Tags:** 66866, Proform, Steel Rocker Shaft

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 197.03 CAD | In stock |

## Images

- Proform 66866 | 66866 Steel Rocker Shaft; Steel; BB Mopar

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/66866-vp-proform-518)
> Updated: 2026-10-21