SKU: 3457431845

Holley EFI GPS Speedometer - 553-121

Sale price$292.48 Regular price$324.98
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Holley EFI GPS Speedometer - 553-121Overview: Holley is pleased to announce the continuing evolution of its very successful analog style gauges with the release of new 3 3 8" and 4 1 2" speedometers and tachometers to complement our 2 1 16" gauge line. These are designed specifically for use with Holley EFI systems or as a standalone unit and available in both black and white face versions. These gauges are compatible with all Terminator, HP, Dominator, and Sniper ECU's, allowing them

Overview:

Holley is pleased to announce the continuing evolution of its very successful analog-style gauges with the release of new 3-3/8" and 4-1/2" speedometers and tachometers to complement our 2-1/16" gauge line. These are designed specifically for use with Holley EFI systems or as a standalone unit and available in both black and white face versions. These gauges are compatible with all Terminator, HP, Dominator, and Sniper ECU's, allowing them to be installed in a variety of Holley EFI equipped vehicles.

Features:

  • Does not require a transmission sensor to operate making installation easy in vehicles which lack electronic sensor output or for someone wanting a simple speedometer installation
  • Hot start satellite acquisition allows speedometer to function within 2-3 seconds of powering up
  • GPS antenna included with 15' cable to route antenna to convenient location in corner of dash
  • 0-160 MPH range with multi-function LCD display screen including ¼ mile time, 0-60 time, current speed, mileage/trip odometer, direction, and time of day
  • Compatible with all Holley EFI touch screens, dashes, handheld tuners, and other CAN devices – Great for Holley EFI users looking to install a combination of needle gauges and LCD accessories
  • Slim-style mounting requires very little dash space for installation
  • 240° sweep pointer from 8 to 4 o’clock makes gauges easy to read at a glance
  • Internal microprocessor ensures accurate pointer movement in street and racing conditions
  • Spin lock ring threads to back of gauge case for simple and secure gauge mounting
  • CNC machined billet aluminum bezels with anodized finish – Bezels are threaded for easy replacement
  • Multiple bezel options available separately – User can customize the gauges to their preference

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Emission Code 5
Face Color Black
Gauge Type Speedometer
Product Type Gauge
Size 4-1/2"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3457431845

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Triton Owner
Cuba, US
★★★★★ 3
Nice Idea But Won't Last With A Frenchie
Color: orange & blue, Color: orange & blue
My dogs loved the balls, however, withing 30 minutes, they were in pieces. Be careful because these parts can become choking hazards. Maybe they should try to make them a bit more sturdy, then I would buy again. Wish I could give them more stars because I liked them and the dogs did too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
M
Verified Purchase
Marjorie
Natrona Heights, US
★★★★★ 2
Great concept not great product.
Color: red
It worked great for the first 20 minutes in the first day. Now my dog gets it and runs with it in her mouth and there’s no more chase. She also ripped off the flap that hides the USB port on day one. Today is day two and I think I want to return it but she still loves it. I’d only use with supervision though bc it’s already falling apart. She’s only 10 months old and a 9 lb multipoo.
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Reviewed in the United States on February 11, 2026
A
Verified Purchase
Amy C
Omaha, US
★★★★★ 4
Not a chew toy
Color: red&green
Our dogs love these! The dogs play for about a half hour then they get tired ,they pick it up by the string and toss it around , only important thing, supervise play time !!! This will break if chewed on , this is not a chew toy , put away once your dogs are done with it .
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Reviewed in the United States on January 15, 2026
B
Verified Purchase
Brenda Koenig
Omaha, US
★★★★★ 1
Not durable
Color: red&green
The description says for cats and dogs. My 6lb mini poodle tore it up in less than 40 minutes. The red one worked but the green one wouldnt even turn on. The indicator said it was fully charged but u plugged it in for a short time but nothing. I dont know if i can get a refund or not since the cover on the red one has been completely torn off. I dont recommend this product
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Reviewed in the United States on May 15, 2026
M
Verified Purchase
Marshall Brooks
Waukegan, US
★★★★★ 5
Fun toy for a puppy or younger dog.
Color: orange & blue
These are fantastic little balls. They work very well.. I bought them for my 14-year-old dog and that was not a very good choice. However, they are wonderful and if you have a younger dog or a puppy, this would be a great toy for them.
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Reviewed in the United States on March 26, 2026

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