Instant Decoder Live
VIN Number Lookup & Spec Decoder
Decode any 17-digit truck VIN to extract verified factory engine specs, drivetrain, cab configuration, GVWR class, and match exact compatible parts and fitment shelves.
Vehicle Decoders Free & Verified
Truck VIN Decoders & Spec Tools
Decode your truck's 17-digit VIN number, view or reconstruct original factory Monroney window stickers, and calculate tire, wheel, and suspension geometry before buying parts.
Available & Upcoming Decoders
7 Utilities Window Sticker Live
Original Vehicle Window Sticker Reconstructor
Access direct official OEM window sticker PDF downloads (Ford, Ram, Dodge, Chrysler, Jeep) or generate a verified digital Monroney spec sheet from your VIN.
Tire Math Roadmap
Tire Size & Speedometer Offset Calculator
Compare OEM tire dimensions vs oversized truck tires. Calculates overall diameter, section width, revs per mile, ground clearance delta, and speedometer error percentage.
Wheel Geometry Roadmap
Wheel Offset & Backspacing Visualizer
Calculate inner suspension clearance change and outer fender poke when swapping factory wheel width and offset (+44mm to negative offset).
Suspension Math Roadmap
Truck Leveling Rake Calculator
Enter hub-to-fender measurements to calculate exact factory rake in inches and determine the optimal spacer/strut lift height without reverse rake.
Inflation Math Roadmap
Tire Load & Cold Inflation PSI Converter
Calculate proper cold tire PSI when switching between P-metric standard load tires and LT Load Range E 10-ply tires using TRA load-inflation tables.
Reference Guide Roadmap
Bolt Pattern & Lug Torque Reference
Look up truck bolt patterns (e.g. 6x139.7, 6x135, 8x180, 8x170), center bore, lug thread pitch, and factory dry lug torque specs.
Why Exact Vehicle Decoding Matters
Most truck part returns happen because of minor trim mismatches, unexpected cab length variations, or miscalculating wheel backspacing against suspension knuckles. Our decoders extract verified factory vehicle build data from NHTSA VPIC records and connect directly to FitmentPilot part compatibility shelves.