# Proform 66903 | 66903 Valve Spring Micrometer; 1.40-1.80 Inch

### PROFORM 66903 APPLICATION SPECS:

### Attributes

-   Category: Spring Micrometer
-   Tool Type: Height Micrometers

### Product Description

Height Micrometer,Maximum Retainer Size of 1.500 In,Model For 1.400 In. to 1.800 In. Valve Springs,High-Quality Aluminum Material,Natural Finish,Fits Most 4 and 6 Cylinder Engines,Reads in 0.005 In. Increments,Sold Each

### FAQ

**What part number is this?** The listed part number is 66903.

**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 66903
-   66903 specifications
-   Proform Valve Spring Micrometer; 1.40-1.80 Inch

## Details

- **Price:** 192.31 CAD
- **Vendor:** Proform
- **Type:** Valve Spring Micrometer
- **Tags:** 66903, Proform, Valve Spring Micrometer

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 192.31 CAD | In stock |

## Images

- Proform 66903 | 66903 Valve Spring Micrometer; 1.40-1.80 Inch

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/66903-vp-proform-518)
> Updated: 2026-10-20