Product Summary

Universal Fit, 5" Gauge Diameter, Black, White, Lighted

  • Traditional incandescent lighting illuminates the front of the dial
  • 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system
  • AutoMeter’s race proven air-core electric tachometers provide quick and accurate readings with a needle so responsive it can go from 0 - full scale in 333 milliseconds
  • Compatible with 1, 2, 3, & 4 pulse per revolution ignition RPM signals (2, 4, 6, & 8 cylinder engines) with points, electronic, and most 12V high-performance racing ignitions.
  • Optimize use of your engine's power band and improve vehicle run performance and driver gear changes with a rapid response, high visibility user-programmable shift light.

Key Specs

MFG. Part #3905

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AutoMeter 3905 Details

Since 1957, Auto Meter has set the standard in performance, accuracy and durability with their legendary Tachometers. The absolute pinnacle of engineering and technology, it's no wonder Auto Meter can lay claim to more motorsports victories than every other gauge manufacturer combined. The patented air core meter movement, wound in house to exacting standards, can move the needle from 0 - 10,000 rpm in 333 milliseconds. An ultra bright LED shift light guarantees you hit your shifts perfectly, every time. An inaugural inductee to the Hot Rod Speed Parts Hall of Fame, no other tachometer on the market has had anything approaching its impact on professional racing. Built for a lifetime of service under the harshest conditions, this is the no compromise tach for no compromise builds. When you're ready for the best, there isn't another choice.

Ships with the following AutoMeter products:

Bulb & Socket:  3219
Light Covers:  3251
Mounting Hardware:  3209

Ships with the following AutoMeter products:

Bulb & Socket:  3219
Light Covers:  3251
Mounting Hardware:  3209


AutoMeter 3905 Specifications

MFG. Part #3905
Gauge Diameter5"
Gauge Face ColorBlack
Lettering ColorWhite
Needle ColorFluorescent Red
RPM Range0-8,000 RPM
Overall Diameter5"
Bezel FinishBrushed Aluminum
Memory StorageNo
Shift Light IncludedYes
Shift Light LocationExternal
Bezel IncludedYes
Bezel StyleSuper Bezel
Light ColorWhite Incandescent
Lighting TypeIncandescent
Includes Bulb and SocketYes
Includes Mounting Bracket(s)Yes
GTIN Code046074039058
Sold in QuantityEach