Harmon Performance Transmissions

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

Happy Birthday to Nate! 🎂🔧We were going to get Nate something for his birthday, but apparently “more horsepower” isn’t s...
10/08/2026

Happy Birthday to Nate! 🎂🔧

We were going to get Nate something for his birthday, but apparently “more horsepower” isn’t something you can just put in a gift bag.

So cake it is.

Help us wish Nate a Happy Birthday — and if you stop by Harmon today, be sure to remind him he’s now a classic, not old. 😂

Some trucks never go out of style. 🔥This beautiful classic Ford F-100 stopped by Harmon Performance Transmission & Diese...
10/07/2026

Some trucks never go out of style. 🔥

This beautiful classic Ford F-100 stopped by Harmon Performance Transmission & Diesel and it definitely turned a few heads in the shop.

Whether it’s a well-preserved classic, a hardworking daily driver, or a performance build, we appreciate the craftsmanship behind every vehicle that comes through our doors.

Would you keep it original or add a few performance upgrades?

"If I could give 10 stars I would." ⭐That's the kind of review that makes our day.Ben has trusted Harmon Performance wit...
09/28/2026

"If I could give 10 stars I would." ⭐

That's the kind of review that makes our day.

Ben has trusted Harmon Performance with two transmissions, and we're incredibly grateful that he came back to us a second time. Communication, staying mindful of the budget, and never compromising on the quality of the repair - that's the experience we aim for with each of our customers.

Thank you, Ben, for the awesome review and for continuing to put your trust in the Harmon team!

Happy Labor Day from Harmon Performance!Today is about the people who put in the hours, get their hands dirty, and keep ...
09/07/2026

Happy Labor Day from Harmon Performance!

Today is about the people who put in the hours, get their hands dirty, and keep things moving.

We're especially proud of our Harmon crew and the hard work they put in every day, whether it's keeping a work truck on the road, rebuilding a transmission, or finding the problem nobody else could.

Here's to hard work, horsepower, and a well-earned day off!

Happy Labor Day!

A little behind-the-scenes look at the shop with this beauty! Trust the pros for your Transmission services here at Harm...
09/04/2026

A little behind-the-scenes look at the shop with this beauty! Trust the pros for your Transmission services here at Harmon Performance!

🔧 EMPLOYEE SPOTLIGHT: CHRIS HARMONThe name on the building started with this guy.Chris Harmon founded Harmon Performance...
08/20/2026

🔧 EMPLOYEE SPOTLIGHT: CHRIS HARMON

The name on the building started with this guy.

Chris Harmon founded Harmon Performance Transmission and built a reputation that reaches well beyond New Richmond. He became known not only for his skill with transmissions, but for something just as important — being fair, doing right by his customers, and treating people the way they should be treated.

And Chris is still at it today.

He’s still turning wrenches. Still solving the tough problems. Still sharing what he knows. And still taking care of customers the same way he always has.

As Harmon Performance grows, those values aren't changing.

Do great work. Be fair. Treat people right.

That’s how Chris built Harmon.

And that’s still how Harmon is run today.

Visit us at: 📍1536 Wis-65, New Richmond (next to River Feeds)

Diesel Tuning: What does it actually mean?If you own a diesel, you've probably heard people talk about tuning.But what d...
08/14/2026

Diesel Tuning: What does it actually mean?

If you own a diesel, you've probably heard people talk about tuning.

But what does a tune actually change? Is it all about making more horsepower? What about transmission tuning? And does tuning even make sense for the way you use your truck?

If you've wondered about any of those things, you're exactly who we wrote this for.

At Harmon, we believe there's no such thing as a dumb question—especially when it comes to your truck.

Our latest Diesel Tuning 101 article breaks down the basics without assuming you already speak fluent diesel. 💪

👉 Read it here:
https://harmon-transmission.com/diesel-tuning-101-what-it-means/

Have a tuning question we didn't answer? Drop it in the comments or give us a call. It might just become our next article.

New to diesel tuning? Harmon Performance breaks down what tuning does, why it matters and how to know if your truck needs one.

🔥 Burnouts, cool builds & good times! 🔥We had a blast at the Sittin Pretty Truck & Car Show! We passed out Harmon koozie...
08/08/2026

🔥 Burnouts, cool builds & good times! 🔥

We had a blast at the Sittin Pretty Truck & Car Show! We passed out Harmon koozies, checked out some awesome rides, and of course had to stick around for the burnouts. 💨😎

Thanks to everyone who stopped by and said hi!

And remember — Harmon Performance is more than transmissions and diesel. When your ride needs a fresh set of rubber, we’ve got you covered with NEW TIRES, too! 🛞

Transmission ✔️
Diesel ✔️
Tires ✔️
Good people who love cool trucks and cars ✔️

Come see us at Harmon Performance Transmission & Diesel Repair!

Need diesel or transmission work?Now's a good time to finally get it handled. Save on the repair you've been avoiding:$7...
07/21/2026

Need diesel or transmission work?

Now's a good time to finally get it handled. Save on the repair you've been avoiding:

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

Now through August 31st. Let's cross it off the list, together.

📍 Harmon Performance Transmission & Diesel, New Richmond, WI
🌐 harmon-transmission.com

Some exclusions apply. Not valid with any other offers. Excludes oil changes. Expires 8/31/26.

⚠️ Before You Replace Your Transmission... Get a Second Opinion.Transmission repairs can be one of the biggest investmen...
07/14/2026

⚠️ Before You Replace Your Transmission... Get a Second Opinion.

Transmission repairs can be one of the biggest investments you'll make in your vehicle. Before you commit to a major repair or replacement, let the transmission specialists at Harmon Performance Transmission & Diesel Repair take a look.

For a limited time, we're offering a FREE Transmission Second Opinion, including:
✅ Road Test
✅ Computer Code Scan
✅ Professional Transmission Evaluation

We'll help you understand what's going on and discuss your options. No pressure. No obligation.

Additional diagnostic testing may be recommended if needed.

📞 Schedule your FREE Second Opinion today and make an informed decision with confidence.

📍 Harmon Performance Transmission & Diesel Repair
💻 www.harmon-transmission.com

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

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