Free calculator and lookup tools for Harley-Davidson riders. No signup, no email gate, browser-based.
Available Tools
🔍VIN Decoder + Recall Lookup
Decode any Harley VIN: year, model, engine, plant. Plus active NHTSA recalls. 1981-present.
📏Tire Pressure Calculator
Exact PSI by model, year, load (solo / 2-up / luggage), and temperature. HD spec data.
💰Loan Calculator (Pro)
50-state sales tax, APR by credit tier, amortization, scenario compare, depreciation chart.
🛢️Oil & Fluid Capacity Lookup
Exact engine oil, primary, and transmission capacities plus oil type by engine family. From HD service manuals.
⚠️DTC Code Decoder
Look up any Harley trouble code: meaning, severity, and likely causes. 58 powertrain, body, network & ABS codes.
All free, browser-based. Built on official NHTSA APIs and Harley-Davidson service documentation.