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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Harmon Performance Transmissions

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United States
New Richmond, WI
Harmon Performance Transmissions

Domestic and foreign Automatic & Manual Stock, Street & Strip Truck/Towing Diesel Performance and racing units available

06/18/2026

🔧 Your Transmission Gives Warning Signs. Are You Listening? 🔧

Most transmission failures don't happen overnight. Your vehicle will often tell you something is wrong before a major breakdown occurs.

⚠️ Warning Signs to Watch For:
✔ Delayed shifting
✔ Slipping gears
✔ Hard or rough shifts
✔ Transmission fluid leaks
✔ Burning smells
✔ Check Engine Light

The sooner you address transmission concerns, the better your chances of avoiding a costly rebuild or replacement.

At Harmon Performance Transmission & Diesel Repair, transmissions aren't just one of the things we do—they're what built our reputation.

📍 New Richmond, WI
📞 Schedule an inspection today and drive with confidence.

06/15/2026

💨 Keep Your Diesel Running Strong. Save While You Do It. 💨

A clogged fuel filter can rob your truck of power, fuel economy, and reliability. Don't wait for performance issues to leave you stranded.

🔥 Limited-Time Fuel Filter Replacement Specials 🔥
✅ Ford Diesel – $125
✅ Chevrolet Diesel – $200
✅ RAM Diesel – $300

Get OEM-quality parts and expert installation for less than dealership pricing.

📍 Harmon Performance Transmission & Diesel Repair
📞 Call today to schedule your appointment.
⏰ Offer available for a limited time.

05/25/2026

This Memorial Day, we honor the heroes who made the ultimate sacrifice for our country 🇺🇸

Their courage, service, and dedication will never be forgotten. As we gather with family and friends this weekend, we remember those who gave everything to protect the freedoms we enjoy every day.

From all of us at Harmon Performance Transmission & Diesel Repair, thank you to the men and women who served our nation with bravery and sacrifice.

Wishing everyone a safe and meaningful Memorial Day weekend ❤️🤍💙

05/21/2026

🔥 ONLY $129.99 FOR A DIESEL OIL CHANGE! 🔥

Your diesel truck works hard — make sure it’s getting the maintenance it deserves. 💪🚛

At Harmon Performance Transmission & Diesel Repair, our $129.99 Diesel Oil Change helps protect your engine, improve performance, and keep your truck ready for whatever the road throws your way.

When you bring your diesel to Harmon Performance, you can count on:
✔ Experienced diesel technicians
✔ Quality oil & filters
✔ Honest recommendations
✔ Trusted local service
✔ A team that understands diesel performance

Whether you drive a Powerstroke, Cummins, or Duramax, we’re here to help keep your truck running strong for the long haul.

📍 Harmon Performance Transmission & Diesel Repair
🌐 https://harmon-transmission.com/
📞 Call today (715-410-7156) or schedule your diesel oil change online!

05/12/2026

Need diesel service?
Transmission acting up?
Noticing slipping, hard shifts, or warning signs?

Now is the time to get it checked out and save.

Choose your savings
$75 off service over $750
$100 off service over $1,000
$200 off service over $2,000

Our team at Harmon Performance is here to diagnose it right and fix it right the first time.

Schedule your service today and get back on the road with confidence.

05/11/2026

Clear communication makes all the difference!

From scheduling to pickup, our team at Harmon Performance is committed to keeping you informed every step of the way.

We appreciate the trust our customers place in us and take pride in delivering a smooth, straightforward experience.

Thank you, Jason, for the great review!

If your truck needs repair or service, we are here to help.

04/27/2026

Diesel owners, this one is for you.

Keep your engine running strong with a diesel oil change for $129.99 at Harmon Performance Transmission and Diesel Repair.

Our team knows diesel inside and out, so you can count on the right service done right the first time.

Schedule your service today and keep your truck performing at its best.

04/07/2026

🔥 Choose Your Savings at Harmon Performance 🔥

Big repairs don’t have to hit as hard—especially when you’ve got options.

💥 Save $75 on services over $750
💥 Save $100 on services over $1,000
💥 Save $200 on services over $2,000

Whether it’s diesel service or transmission work, our team has the expertise to get you back on the road with confidence—and now at a better value.

Don’t wait until small issues turn into major repairs. Take advantage of these savings while they last.

📅 Offer expires 4/30/26

03/31/2026

🔥 Now Available: Harmon Performance Apparel! 🔥

You asked—we delivered. You can now order official Harmon Performance gear directly online! 💪

Whether you’re all about diesel, performance, or just want to rep the shop, we’ve got you covered with gear built to match the brand.

👉 Shop here: https://hpt.ourwearhouse.com/

Thanks for supporting Harmon Performance—we’re just getting started 🚀

01/01/2026

We extend our warmest wishes to our valued customers and supporters for a prosperous New Year. We look forward to serving you in the coming year. Our expanded services now include comprehensive diesel engine maintenance and full automotive solutions, in addition to our specialized transmission and driveline expertise. Please contact us for all your gas and diesel requirements.

Address

1536 Wis/65
New Richmond, WI
54017

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+17154107156

Website

https://www.harmon-transmission.com/

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