Cast Pistons Mopar 318 3.9063" Bore

Name: Cast Pistons Mopar 318 3.9063" Bore
Brand: SEALED POWER
SKU: 844-285AP40
Price: 189.99 USD
Availability: InStock

^$189⁹⁹

Ships on 11/17/2026

Lowest Price Guarantee

Chrysler / Dodge / AMC / Jeep Pistons

3.9063" Bore
.040"
Flat, with four valve reliefs
Set of 8

The value of Speed-Pro's line of cast aluminum pistons are hard to beat for budget or stock-style rebuilds. They are made from high-quality aluminum alloys and feature a carefully controlled casting, heat-treating, and CNC-machining process. And, because they're designed and manufactured to exceed OEM specs, they'll provide improved reliability, performance, and a long service life.

Part TypePiston

Product LineSpeed-Pro Cast Pistons

BrandSEALED POWER

Package Height4.4

Package Width9.5

Package Length18.3

Weight14.95 PG

Part CategoryReplacement Parts

QuantitySet of 8

Part FitmentSemi Universal

Vendor Part Number285AP40

Package Qty1

Package TypeEA

Some parts are not legal for use in California or other states with similar laws / regulations

Cast Pistons Mopar 318 3.9063" Bore

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords