Key Specs

MFG. Part #SN16
BrandClassic Instruments
Speedometer Gear TypeMechanical-to-electronic speed signal converter
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Details

Upgrade your classic vehicle to modern instrumentation with the Classic Instruments 16-pulse electronic speedometer sender. Designed for GM and Ford transmission applications, this sender converts a traditional mechanical speedometer cable output into a reliable electronic signal compatible with Classic Instruments electronic speedometers. Ideal for restorations, restomods, hot rods, and custom vehicles, it provides accurate speed readings while simplifying the transition from mechanical to electronic gauges. Built for durability and long-term reliability, this sender is an essential component for enthusiasts upgrading to modern instrumentation without sacrificing compatibility with classic drivetrains.

  • 16-pulse speedometer sender designed for GM and Ford transmission applications
  • Converts mechanical speedometer cable outputs into electronic signals
  • Compatible with Classic Instruments electronic speedometer systems
  • Durable construction ensures accurate and reliable speed readings
  • Easy installation for smooth integration into restoration and custom projects
  • Ideal for hot rods, muscle cars, trucks, and classic vehicles using modern electronic gauges

Specifications

KEY SPECS
MFG. Part #SN16
BrandClassic Instruments
Speedometer Gear TypeMechanical-to-electronic speed signal converter
GENERAL
Notes8 ft wire lead included.
Sold in QuantityEach
Sending Unit16-pulse electronic speedometer sender for GM or Ford transmissions

Ratings & Reviews

5

5 Reviews

Overall Assessment

Customers highly recommend our product due to its confirmed easy installation and perfect fit. Many praise its practicality and usability, highlighting how well the product works. Its excellent material quality is appreciated, ensuring safety and durability. However, ensuring it's the correct model before purchase is crucial. Its essentiality and aesthetics also garner positive feedback. Compared to competitors, customers found our product more reliable and functional.

5

5 reviews

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5.0

3 years ago

37 pro

Colorado

Verified

Easy to install easy to hook up

Perfect fit!

5.0

5 years ago

Jerad

Surprise, AZ

Verified

Worked great!

Would Recommend

Great Product

5.0

5 years ago

Vato RAY

Diamond Bar CA

Verified

Fit Perfiect

It was not the right one so I had to return it.

5.0

8 years ago

Harold

New Port Richey Florida

Verified

It was not the right one so I had to return it but the service guy gave me the information to be able to find the right one and make it work. Thank you for all your help.

Would Recommend

Essential part. Looks good.

5.0

10 years ago

Wally

Georgia

Verified

Had to have this.

Would Recommend

Showing 5 of 5 reviews

Questions & Answers

9 Questions11 Answers

What is the difference between part #91097704 and part #27599?

by Ron

7 years ago

1 answer

I want to use the Classic Instruments speedometer to replace the VDO on my 1952 MG Replica with a 1974 VW type 1 engine and trans, Will this signal generator work AND be able to directly connect to the VW? Thanks

by Jerry

8 years ago

1 answer

will this sender work with 727 mopar trans.

by jerry

8 years ago

2 answers

How long is the wiring ?

by Fred Farkle

8 years ago

2 answers

So does this plug into a later model transmission, so that you can plug in the stock speedo cable to stock gauge cluster?

by Foxxy

9 years ago

1 answer

hello is this Sender SN16 from Classic Instruments ?

by SpeedShop T&M

10 years ago

1 answer

my speedometer just stop working after many years ,how can I check the speedometer and the sender before buying anything new. it does have power,and the light works ,no dial movement or millage movement. how can I tell which went bad thanks mike ps it is a classic instrument reads to 120 mph. also need to know if the 140mph is the same just a newer version.

by mike

10 years ago

1 answer

Can this sending unit be used on a T350 trans? I currently have a mechanical cable set-up but wanted to install an electric speedo. Can I use this item with an electric speedo with a mechanical trans connect on the T350? Thanks Lawrence

by

14 years ago

1 answer

I have purchased the classic instruments #275355 140 mph vintage speedometer. and this appropiate gm sender. Do you just hook up the wires as directed and it is done?? How do you callibrate the speedometer, if you have changed the tire size on your vehicl

by Rich

15 years ago

1 answer

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