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Koso HD-03 Four-Piece Gauge Kit

(4 reviews)

Item: 398022

$749.86 – $900.44

Select Your Vehicle - Fitment Guaranteed

Koso HD-03 Four-Piece Gauge Kit


  • Plug-and-play
  • Digit Brightness levels from 1 (darkest) - 5 (brightest)
  • Fits directly on OEM dash and connectors
  • Includes speedometer, tachometer, odometer, gears, tripmeter, engine temperature, oil temperature and fuel level gauges
  • Indicator lights for Turn Signal, Water Temperature, Oil level, Photometric Sensing, Warning/Check Engine Light, High Beam, Fog Light, Volt, Anti-Theft, Cruise, ABS, Gears (Off, N, P, R, 1-6, Fuel (HD Standard or HD Customize)

Tachometer (0 - 9,999), RPM Shift Light (2,000 - 8,000 RPM), Maximum RPM (0 - 8,000 RPM)

Speedometer (0 - 199 MPH), Maximum Speed Record (0 - 199 MPH), Overspeed Warning (19 - 199 MPH)

Odometer (0 - 999,999 miles), Tripmeter A/B (0 - 9,999 miles), Mileage Maintenance (300 - 10,000 miles)

Engine Temperature (Standard/Customize), Oil Temperature Meter (32 Degree F - 248 Degree F), Maximum Oil Temperature Record (32 Degree F - 248 Degree F), Effective Temperature Range (14 Degree F - 140 Degree F)

Fuel Meter (6 levels | 1 level = 16.6%), Fuel Tank Volume (Off/1 - 9.9 US Gallons), Average Fuel Consumption (Off/MPG), Remaining Mileage (0 - 6,249 miles)

Volt Meter (DC 8V - 18V), Effective Voltage (DC 12V)

Specification Details
Bezel Color Black
Bulb Color Varies (make selection above)
Color Black
Face Color Black
Length 10.625 in. / 2.75 in.
Needle Color Varies (make selection above)
Width 3.75 in. / 2.75 in.

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLHT Electra Glide Standard 2019-2020
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCU Ultra Classic Electra Glide 2014-2016
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2016
  • FLHTCUTG Tri Glide Ultra Classic 2014-2020
  • FLHTK Electra Glide Ultra Limited 2014-2020
  • FLHTKL Electra Glide Ultra Limited Low 2015-2019
  • FLHX Street Glide 2014-2020
  • FLHXS Street Glide Special 2014-2020
  • FLTRK Road Glide Limited 2020
  • FLTRU Road Glide Ultra 2016-2019
  • FLTRX Road Glide 2015-2020
  • FLTRXS Road Glide Special 2015-2020

Customer Reviews

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Amazing product

By   on  Verified Purchaser

The plug and play install was very easy works great the lights look good


Nice looking gauges

By   on  Verified Purchaser

The gauges looks good on my bike, like that it had the air gauge for my air ride to easy install, only thing you have to take your oil sensor pressure off your bike and install the one with the gauges.


Simple - Worth the price.

By   on  Verified Purchaser

Installation was simple. Was concerned about the programming but the Koso videos on You Tube walked me through every step.


Easy to read

By   on  Verified Purchaser

These look very cool, and are easy to read.


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Questions & Answers

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How does the oil temperature work off the volt plug in

Given that the bikes these instruments fit all use CAN bus signalling, it's actually quite simple, in terms of the technology, for the oil temp gauge to pick up the signal since it's all relayed to every single component that's connected to the same harness. Basically, each sensor on the bike broadcasts its data into the wire harness and that data can be read by all other instruments on that network, but unless that instrument is programmed to pickup (read) that signal, it will just ignore it. Since the instruments are connoted to the ECU, the latter of which always receives all sensor input data, that signal is also relayed to the instruments for you to see as you ride.

By Tom
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