Page 275 - Big Twin

Digital Speedometer

and Tachometer

Front Views of 39-0599 and 39-0685 39-0439 39-0578 BIG TWIN

A
39-0685

39-0599 Installed with 31-2145
31-0984

B 39-0599
31-2145 39-0440 39-0579
Digital Speedo/Tachometer has the following functions:
• Bar Graph Tach
• High Beam
• Neutral
• Oil Pressure 39-0580
• Turn Signals
• Digital Odometer
• Trip Meter 39-0441
• MPH Only
• Unit measures 48mm 60mm
110mm (L) x 57mm (H) x 38mm (W). White Black
VT No. Item Face Face
39-0599 Gauge (B) Requires an installation bracket 3-LED 4-LED Ratio Item Year
39-0685 Gauge (A) No bracket necessary for installation 39-0439 39-0578 2:1 Speedometer 1973-94
31-2145 Bracket 39-0440 39-0579 2240:60 Speedometer 1981-94 Softail

39-0550 39-0550 39-0438 39-0576

39-0436

39-0437

Mini Gauges include cable and mount clamp.
Note: 39-0556 and 39-0437 includes left side speedometer drive. 39-0550 and 39-0561 feature indicator lights.
• Blue-High Beam
• Green-Neutral
• Red-Oil
• Yellow-Turn Signals
White Face
48 mm 60 mm Ratio Item Year
— 39-0550 2:1 Speedometer 1973-94
39-0436 — 2240:60 Speedometer 1981-94 Softail
39-0437** 39-0556** 2:1 Speedometer 1995-99
39-0438 39-0576* 1978-up Tachometer Custom
33-2043 — Light Socket
39-0550, 39-0556 have indicator lights, when installed on
Pre-90 models tap into orange wire exiting turn signal flasher 1991-up models signal indicator light can not be used.
**Note: Includes 2:1 ratio left side speedo drive unit.
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