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        RAM Speedometer Calibrator 18-20 RAM 1500/2500/3500 Rough Country

        Vehicle Specific
        • $169.95
        In stock (1000 items available)

        Put the finishing touch on your lifted vehicle with Rough Country's Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicle's speedometer to match the output of your larger tires.

        Your vehicle's computer is designed to track the speed based on your stock tire height. When upgrading to larger tires, there will be a discrepancy between your actual speed and the readout on your speedometer.

        This plug and play device connects directly to your vehicle's Diagnostic Link Connector Port and in just a few short minutes your speedometer reads true again!

        Rough Country's Speedometer Calibration Devices don't just simply change your in-dash readout, they update your vehicle's ECM, ensuring accurate shift points and proper electronic stability control. Finally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process!

        This device can also easily read and check all diagnostic codes to help you manage check engine light and service needed messages, and also includes a function to reset the speedometer back to stock prior to servicing the vehicle. Includes a 1-Year Warranty.


        • Resets your speedometer to accurate readings for larger tires
        • Easy Plug and Play connection Updates
        • OE ECM Shift Points to accommodate larger tires
        • Recalibrates Electronic Stability Control to work with larger tires
        • Reads diagnostic codes like check engine light
        • Option to return to stock settings
        • 1-year warranty

        Notes: Download the latest software update Fits both Gas and Diesel models Emissions Certifications: Not for sale or use in California


        • Sold As Each
        • Doors 2 Door|4 Door
        • Drive 2WD|4WD
          • SKU
          • Weight
            2 lbs
          • Barcode
          • Dimensions (L x W x H)
            6.75 x 5 x 2 in
          • Manufacturer Part #
        • Drive
          2WD, 4WD
        • Property 65 Warning
          CALIFORNIA WARNING: Cancer and Reproductive Harm -
        • Vehicle Type
          Jeep, Truck/SUV
        • Doors
          2 Door, 4 Door
        • Brand
          Rough Country
        • Country of Origin
        • Sold As
        • Warranty
          1 Year Warranty
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        Cumberland Customs will not accept any returns after 30 days. Returned items must be in new, unused, re-sellable condition, with all pieces included. All returns are subject to approval by Cumberland Customs. All return shipping is the responsibility of the client - all return shipments must be insured, and any loss/damage claims must be filed by the client. Cumberland Customs will not accept returns on coilovers, electronics, engine internals, turbochargers, superchargers, and turbocharger kits. When approved for inspection, a return will be issued a Return Merchandise Authorization (RMA) number which must be clearly noted on the shipping waybill and packaging. Any incoming shipments without an RMA number will be refused. Items that are approved for return and sent back within 10 days of delivery will not be charged a restocking fee. After 10 days, accepted returns are subject to a fee consisting of 15% of the item cost. A $20 repackaging fee will be applied to any returns without acceptable packaging. 

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