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Tuning Accessories > Koso Gauges

Koso Gauges

Single and dual gauges available for both ATV and Snowmobile


Single Display EGT Ref: KOSO-SINGLE
One digital display with backlighting for night use. Programmable warning point (temperature) the display turns red and blinks. Peak temperature recall. 1 5/8" X 4". Includes mounting and clamp on sensor.

Instruction Sheet 


Single Display EGT

Koso Gauge - Single Display
Ref: 908-103
   $198.95
SNOWMOBILE
STANDARD SENSOR 
7 In Stock

Koso Gauge - Single Display
Ref: 908-117
   $217.95
SNOWMOBILE
FAST SENSOR 
1 In Stock

Koso Gauge - Single Display
Ref: 908-104
   $198.95
ATV 
1 In Stock


Dual Display EGT / Water / RPM
Dual Display EGT / Water / RPM Ref: KOSO-DUAL
Two digital displays with backlighting for night use. Programmable warning point (temperature), the display turns red and blinks. Peak temperature recall. 2 3/8" X 4 7/8". Includes mounting and clamp on sensors.

NOTE REGARDING #908-126 / #908-127 DUAL EGT, RPM AND WATER GAUGES: Left side can dispaly EGT, RPM or water temp (switchable). Right side always displays EGT. Includes EGT & water sensors.

Instruction Sheet 




Koso Gauge - Dual Display
Ref: 908-105
   $303.95
Dual EGT Only
STANDARD SENSORS  
16 In Stock

Koso Gauge - Dual Display
Ref: 908-116
   $341.95
Dual EGT Only
FAST SENSORS  
13 In Stock

Koso Gauge - Dual Display
Ref: 908-126
   $379.95
Dual EGT / RPM & Water
STANDARD EGT SENSORS  
4 In Stock

Koso Gauge - Dual Display
Ref: 908-127
   $417.95
Dual EGT / RPM & Water
FAST EGT SENSORS  
6 In Stock


Air / Fuel Ratio MeterAir / Fuel Ratio Meter Ref: 908-119
  • Wide band meter
  • Backlighting for night use
  • User settable warning points
  • Display turns amber at warning points
  • Can work on 2 & 4 stroke engines
  • Requires 12V DC power.
    Instruction Sheet 

    6 In Stock
       $322.95

  • Oxygen Sensor Adaptor Ref: 908-122
       $37.95
    2 In Stock

    For Air / Fuel Ratio Meter (#908-119) listed above 

    ATV SpeedometerATV Speedometer Ref: 908-109
    This digital speedometer is easy to read and to use. Its blue backlight makes it very easy to read at night. Its speed sensor and universal bracket allows it to fit on almost any kind of motorcycle, atv and scooter. Features mph, odometer and tripmeter. Includes handlebar (7/8") mounting bracket. 3" x 2.7" x 1.1". 

    0 In Stock
       $114.95

    CURRENTLY OUT OF STOCK


    Water Temp Gauge Ref: 908-120
    This mini LCD thermometer will give critical information on the engine coolant temperature. Its small size (2 1/2" x 1 3/8") makes it easy to install. This unit is about the smallest and lightest temperature gauge on the market. The internal battery allows you to install it on any vehicle. Includes 1/8 pipe thread sensor. This gauge has backlighting, a changeable internal battery and peak temp recall.
    Instruction Sheet 

    10 In Stock
       $75.95
    Water Temp Gauge


    Koso Mini TachKoso Mini Tach Ref: 908128
    A compact RPM meter with maximum RPM recall function. This gauge can be easily installed on about any engine. Just wrap the RPM signal wire around your spark plug wire, set the number of cylinders...that's it, you're ready to go! Replaceable battery has about 1000 hour life. This is a good instrument for Mini 120s, ATV and vintage snowmobiles. 2.4" x 1.3" display / Range 0-15,000 RPM. 

    0 In Stock
       $56.95

    CURRENTLY OUT OF STOCK


    Engine Hour Meter Ref: 908-111
    This gauge is the best tool for the maintenance of your engine. This unit tells how many hours the engine has run. It gives valuable information on when to do your oil changes or when to rebuild the engine for race motors. With total memory time and the two resettable time it makes it very versatile. 2.4" x 1.3" x .6". Mounting included.
    Instruction Sheet 

    1 In Stock
       $56.95
    Engine Hour Meter


    X-1 Boost GaugeX-1 Boost Gauge Ref: 908129
    The basic boost gauge has warning and peak functions. Made to resist cold temperature, water or dust, this gauge can be adapted to any engines with turbo or supercharger. The changeable scale form 15 to 30 psi, the warning and peak recall function makes it a great tool. 

    2 In Stock
       $184.95


    X-2 Boost Gauge Ref: 908130
    With Air / Fuel Ratio & Temperature
    A unit that combines Boost, air fuel ratio and a temperature function that can be installed on the cooling system or the intercooler. This gauge is made to resist cold temperature, water or dust. It can easily adapt to any engines with turbo or supercharger. The X-2 instrument will give you information to help you pull more horsepower out of the engine or save it from bad damages.  

    0 In Stock
       $474.95
    X-2 Boost Gauge

    CURRENTLY OUT OF STOCK


    AC/DC ConverterAC/DC Converter Ref: 908-125
    This small box made of aluminum will convert AC power into DC power. Its compact size and strong resistance make it the perfect power converter for all snowmobile, ATV or dirt bikes. 

    15 In Stock
       $37.95


    Water Temp Sensor Mount Ref: WTSM
    If you do not have a location on your engine to mount a sensor, you can use this sensor mount. Simply splice into a coolant hose and install coolant sensor (not included). 


    Water Temp Sensor Mount

    Water Temp Sensor Mount
    Ref: 908-113
       $27.95
    3/4" / 18mm 
    0 In Stock

    CURRENTLY OUT OF STOCK

    Water Temp Sensor Mount
    Ref: 908-114
       $31.95
    7/8" / 22mm 
    2 In Stock

    Water Temp Sensor Mount
    Ref: 908-115
       $34.95
    1" / 26mm 
    6 In Stock

    Tuning Accessories > Koso Gauges

    Hi-Performance Engineering - 823 Lowell Drive - Thief River Falls MN 56701 USA - (218) 681-2390


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