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Classic Instruments MT-51 Chrome Tach Cup

Specs
Material Type:
Steel
Sold in Quantity:
Each
Finish:
Chrome
MFG. Part #:
MT-51
Overall Length:
3.00
Overall Diameter:
3.62
Inside Diameter:
3.37
Depth:
3.00
Notes
Works with gauges with a body diameter of 3.33". The interior depth is 2-5/8" at the side and 3" at the center.
Classic Instruments MT-51 Chrome Tach Cup

Click image to enlarge

Details

Reviews (5)

Q & A (4)

What's in the Box

Info

Nothing says "hot rod" like a tachometer strapped to the steering column or perched atop the dash. This chrome-plated mounting cup accepts 3-3/8" tachs and will help you mount your tach where you want it.

Works well with Classic Instruments and Omega 3-3/8" tachs.

Notes

This tach cup will not work with the Stewart Warner tachs #s 665-D997J or 665-D997R as the depth of the gauge is greater than the depth of the cup.

 

Customer Reviews

Rated 4 out of 5 by 5 reviewers.
RATING BREAKDOWN
5 reviews
5 Stars
3
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
1
RECOMMEND THIS PRODUCT:

RustisaMust
Verified Purchaser
Scarborough, Ontario

Top Quality

June 15, 2016
Easy install on my sreering column. Looks right at home in my 49 F47.
Pros:
  • Fit Finish
  • Easy Install
Yes, I recommend this product.
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Denis4x4
Verified Purchaser
Durango CO

Quick & Easy installation

May 04, 2016
Made specifically for Classic Instruments 3-3/8" tach. A rubber grommet where the wires go into the cup would be a nice addition. I added my own gromment.
Yes, I recommend this product.
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Captain j
Verified Purchaser
Verified Reviewer
Mount holly, NJ

Not compatible

August 12, 2015
When I ordered with speedway they said it would fit the Stewart Warner wingged tach gauge. It was no where near fitting. I had to cut out the back of the tach cup and also cut down the screw posts on the tach for it to just fit. I hope this helps someone else not have this problem since speedway gave me misleading info. Disappointed!!!!!!
No, I would not recommend this product.
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Merchant Response:

Captain j - Thanks for your feedback! We appreciate hearing from you. Your review has been passed along to our QC team to record and inspect the issue with this product. We are really sorry for your frustration and are always happy to help.
ragin46
Verified Purchaser
Slaughterville, OK, USA

Great base cup to work with, super shinn

May 13, 2014
Very well made though. I had to drill and install a rubber bushing to ease the exit of my wiring.
Pros:
  • looks great w/sw
Cons:
  • needs a better pedistal mount.
  • needs a rear exiting hole & bushing.
Yes, I recommend this product.
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Mike
Verified Purchaser
Illinois

Nice

March 19, 2012
Nice unit
Pros:
  • Easy To Use
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

4 questions : 5 answers

1 answers

Will the Stewart Warner Tachometer No. 82164B will fit into your chrome Tach cup MT-51?

Smokey2037
April 14, 2014

Will the Stewart Warner Tachometer No. 82164B will fit into your chrome Tach cup MT-51?

Answers

April 15, 2014
EricM
We have had issues with many of Stewart Warner's tachs fitting into this cup due to the depth of the tach being greater than the depth of this cup. Sorry I do not carry that specific tach to try it but you should be able to determine if it will fit by the following dimensions: Depth at the outer edge: 2 5/8" Depth in the center: 3" The reason there is two depth measurements is because the back of the cup is domed slightly and the center of the cup is deeper than it is at the outer edge.
2 answers

Are the holes in the back of the cup midway along the circumference? I recently purchased another manufacturer's cup and the mounting holes were offset toward the bottom, which doesn't line up with the mounting studs on the back of the tachometer I'm usin

Dave
Bay City, MI
June 19, 2011

Are the holes in the back of the cup midway along the circumference? I recently purchased another manufacturer's cup and the mounting holes were offset toward the bottom, which doesn't line up with the mounting studs on the back of the tachometer I'm usin

Answers

May 14, 2014
ragin46
There are no holes in the rear of a MT-51
June 22, 2011
John
This tach cup does NOT have holes in the back for mounting studs on the tach. The tach is a basic resistance fit with a clamp band that goes around the perimeter of the cup and the cup is slotted at the base so it can tighten snugly against the tach. One hole in the back for the wiring and the rubber grommet and mount bracket is included. Works with most Classic, Stewart Warner, and Omega tachs with the 3 3/8” diameter. Dimensions are as follows: This tach cup measures approximately 3-5/16"I.D. The interior depth is app.2-5/8" at the side, 3"at the center. Works well with SW, Classic Inst, and Omega 3-3/8" tachs. It will work well with any gauge with body diameter of approximately 3.328".
1 answers

will this tach cup accept the omega tach p.n. 910-91033?

Slick
Wheatland, Wyoming
May 29, 2015

will this tach cup accept the omega tach p.n. 910-91033?

Answers

June 01, 2015
Eric
Expert
Yes this tach cup will work with Omega tach 91091033.
1 answers

will this work with speedometer part #910-65050?

Runner
Garland, ME
March 03, 2016

will this work with speedometer part #910-65050?

Answers

March 03, 2016
Eric
Expert
Sorry this is not compatible with speedometer 91065050. That speedometer is 3 1/2" deep and this mounting cup is only 2 5/8" deep around the outer edge and 3" deep in the center. Sorry we do not have a mounting cup that will work with that speedometer.
Page 1 of 1

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