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Sierra Lido Pro Fog-Free Tachometer, O/B and 4-Stroke Gas Engines

Item # 29042
Customer Rating:

Key Features

  • Measures up to 7000 rpm

  • Polished stainless steel bezel

  • White perimeter and red through-dial lighting

  • Fog-free

  • Requires 3-3/8" dia. hole

Our Price   $99.99

Availability: In Stock

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Product Description
sierra Lido Pro Series gauges are fog-free with a stylish domed glass that sheds water, resists scratching, and looks great anywhere. Tough, magnetically shielded, silicone-dampened vector movements are the ultimate in accuracy and reliability. The Lido's polished stainless steel bezel looks great in most dashes. Black text on a clean white background offers maximum daylight readability, while night visibility is provided by white perimeter and red through-dial lighting. Tachometer requires a 3-3/8" dia. hole. Measures up to 7000 rpm.

product reviews

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by PowerReviews
Sierra Lido Pro Fog-Free Tachometer, O/B and 4-Stroke Gas Engines

(based on 1 review)

Ratings Distribution

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  • 1 Stars



Reviewed by 1 customer

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(0 of 1 customers found this review helpful)


Added to Yamaha 2205 4 stroke very easy

By c-weed

from Perdido Key FL

About Me Outdoor Enthusiast

Verified Buyer


  • Easy To Read
  • Easy To Set Up


    Best Uses

      Comments about Sierra Lido Pro Fog-Free Tachometer, O/B and 4-Stroke Gas Engines:

      Worked like a charm connected to the green sending wire for the tach off the yamaha harness. Looks great - better than the old analog yamaha black and orange. Looks great at night when the lights come on too.

      • Primary use:
      • Personal

      Displaying review 1

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      q & a

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      Do you have questions about this product? 4 easy ways to get the answers you need:

      • Live Help - Real time help for basic questions. click here
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      • Answer Box - Get answers from real customers by clicking "Ask a Question" below.

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      3 Questions | 3 Answers
      Displaying questions 1-3
      • Q:

        Will it wire to a 40 horse Yamaha electrical system?
        Asked on 9/5/2010 by Bucky from Hoboken Ga

        1 answer

        • Staff Reviewer


          This gauge will work on all motors that do not have a 20 pole alternator.

          Answered on 9/24/2010 by Anonymous
      • Q:

        Does the RPM gauge work on two strokes as well as 4 strokes. I have a 1987 Merc 35 HP two cyl two stroke and is thee a wire harness with it.
        Asked on 3/22/2010 by Dan from St paul

        1 answer



          Mercury 30-40 hp (2cylinder) engines require a module to work with the tach. That mercury part number is 17461A2.

          Answered on 3/25/2010 by Bryant from Tech
      • Q:

        what size hole saw do i use to dash mount your pro series lido gauges. tack' tilt/trim and a water pressure unit
        Asked on 11/7/2009 by fish2547 from union city tn

        1 answer



          The Tilt and Trim and the water pressure gauges are 2" diameter. Requires a 2.16" hole.

          The Tach is 3" diameter. Requires a 3.44" hole.

          Answered on 11/16/2009 by Chad @ Overton's from Greenville, NC
      Displaying questions 1-3

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