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  6. Autolite 4300, 4 Barrel Step Up Piston 40-15
Autolite 4300, 4 Barrel Step Up Piston 40-15
Autolite 4300 Step Up Piston 40-15

Autolite 4300, 4 Barrel Step Up Piston 40-15

Your Price: $5.95
Part Number: 40-15
Availability: In Stock
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Autolite 4300, 4 barrel step up piston.

The old rod and spring must be reused. The Autolite 4300 are usually installed on Ford products.
Overall length 0.502 diameter at widest point 0.375

The step up piston needs to be clean and allowed to move easily.

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