What is a Mopar build sheet?

A build sheet is the factory's own record of how a specific vehicle was assembled. For Mopar / CDJR vehicles it lists the sales codes, option packages, trim, drivetrain, paint, and equipment the vehicle left the plant with.

It's the most reliable way to confirm how a used Chrysler, Jeep, Dodge, or RAM was originally configured — far more dependable than a badge, a trim name, or a seller's description.

What the build sheet shows

The build sheet ties each factory sales code to the package or option it represents — appearance groups, trailering and towing equipment, axle ratios, interior materials, audio and technology, and safety features.

One package name can include several smaller features, so reading the build sheet carefully tells you what the vehicle actually carries, not just what the trim badge implies.

Standard vs. optional equipment

Standard equipment follows the trim or model; optional equipment reflects choices made when the vehicle was ordered. A build sheet makes the difference clear, which matters when two trucks or SUVs with the same model name feel very different in practice.

It also helps separate factory equipment from anything a dealer or previous owner added afterward — wheels, audio, badges, and accessories may have changed since delivery.

Mopar Sales Codes Starting With W

3 Mopar / CDJR sales codes that start with W. ← Back to the navigator · Decode your VIN

Code	Description
WJA	21-inch machined-face/Gloss Black-painted aluminum wheels. This code identifies the factory wheel size, design, material, or finish.
WM8	Delete Hub Caps. This code identifies the factory wheel size, design, material, or finish.
WP1	18X10.0 19X13.0 Frgd Sidewinder Whls. This code identifies a factory equipment, production, or ordering configuration used by Chrysler, Dodge, Jeep, Ram, or another Mopar-related brand.

Meanings vary by vehicle family, model year, and market — your VIN's build sheet is the definitive list.