Benchmark Transmission is a family-owned company specializing in the fixing and service of automatic transmissions. Benchmark Transmission has 4 branches in Delaware and takes pride in the quality of service our transmission business has been providing since 1967. Benchmark Transmission pledges to all our customers that we will not remove a transmission from a vehicle in order to total a repair unless absolutely necessary. 

Additionally our shop promises to diagnose transmission problem for all our local and surrounding region clients in an honest and expert manner. Benchmark Transmission realizes that there are many auto repair firms in Delaware to choose from and that is why our shop strives to provide prompt and courteous service to all who visit our automotive transmission repair facility in the hope that you will come back to us for all of your automatic transmission repair needs.

Highlights, Specialties & Features

  • Shuttle Service, Free Estimate, Towing, Senior / Military Discount.

Professional Associations & Certifications

  • BBB
  • ATRA
  • ASE
  • AAA

Serviced Areas

  • Middletown, DE

Payment Options

  • American Express, Debit Cards, Discover, MasterCard, VISA, Cash

Contact Details

  Person Dante Principe Jr.
  City Middletown , DE
  Zip Code 19709
  Address 128 Patriot Drive, Suite 1
  Phone Number (302) 376-6510
  Fax (302) 376-9145

Business Representative

Dante Principe Jr.


Since 1967, Delaware's original Transmission Shops. Formed in Delaware, and Incorporated in the first state. We have earned the trust of our customers for transmissions and Auto Repair for years.

Products & Services



Benchmark Transmission & Auto Care provides a wide range of repair services for both import and domestic automotive brake systems at our auto repair. Every auto mechanic knows it is important that you understand how the brake system in your car or truck plays a vital role in keeping your passengers and you safe. The components in the automotive brake system are not designed to last for the life of your vehicle and wear down over time as you drive in and around the streets of New Castle ~ Middletown. The pads (aka shoes) are the most common brake replacement service we do. This is because every time you depress your pedal the brake pad material wears down against the brake rotor. If the brake pads are allowed to wear down for too long the underlying metal surface of the pads will contact your brakes' metal rotors (aka drums) . This situation will not only result in an unsafe situation but will require additional service and increase your brake repair cost.

Cooling System

Cooling System

Benchmark Transmission & Auto Care offers a complete range of repair services for your auto cooling system needs on both foreign and domestic cars and trucks. The mechanics auto service center are both certified and trained to quickly diagnose your vehicle's cooling system problem and repair it at an affordable and reasonable cost, getting you back on the roads as soon as possible.



The goal of our automotive center is to keep the engine in your automobile in top performance condition. Our staff of auto technicians are professionally trained and certified in every aspect of auto engine repair and maintenance. From overhauls to tune ups, engine troubleshooting, timing adjustments, performance and diesel engine repair, engine rebuild and replacement service.

  • I would recommend this business

Benchmark of Middletown is a great place with good honest mechanics. Ron and Mitch, the owner, were wonderful with helping me resolve my transmissions problem. They are also equipped and ready to take care of all your car mechanic needs.

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

Benchmark rebuilt the transmission on my 2006 Odyssey last year, and I brought it back in today for its one year checkup. I was extremely happy with both encounters here--the first time the job was done right and I have had no further problems, and both times found Dante to be extremely forthcoming, informative and pleasant and willing to frankly discuss any issues related to my car (or potential future cars) with me.

Dante and his staff did a great job on my GMC carpet cleaning van. Had the transmission out, rebuilt and back in in 2 days. Getting me back to work fast. Will recommend to any one who asks.

I Drove from the Jersey Shore to have my transmission serviced here. Very knowledgeable techs and they stand behind their work.

Mitch at benchmark in Middletown is top notch and honest! We will forever go to benchmark for all vehicle maintenance!

Great service, awesome warranty, I'm so happy. Thanks! Above and beyond, these guys in Newark are the best!

Contacted Dante through the site over the weekend with questions about a ballpark on rebuilding my transmission. Even though they were closed at the time he emailed me almost right away! I limped my car in on Monday and had it back on Thursday! They did a great job and were very professional. It's great to find a mechanic I can trust to do what they say they'll do and back it up. Thanks guys for a great experience!

When my daughter's 14 yr old wrangler started leaking fluid and making a horrible sound we had it towed to Benchmark Transmission in Newark. They were upfront with what was wrong, how long it was going to take and fixed it at a reasonable price. I highly recommend Benchmark Transmission we have had various car makes/models serviced by them. Always a pleasure!

These guys are great, and they really know what they're doing. If you decide to get any transmission work done, these guys are definitely worth it. They're really patient in breaking everything down for you, and they are truly invested in helping you make the best possible decision(s). After dealing with mechanics all over the US, I've got to say that these guys are some of my favorites. This place definitely comes with my top recommendation.

I have been taking my vehicles to Benchmark Transmission in Newark now for nearly 25 years and have never felt more comfortable with the expertise and level of service that I have received.

I have owned various makes and models, typically of older vehicles, and have always had the life expectancy of the vehicles extended whenever I wrestled with whether have the transmission serviced or replaced as opposed to necessarily getting another vehicle.

It has always been well worth the cost.

Photo Book

Social Activity

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First heat wave for 2015, Call us for service before a failure
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4x4 working . give us a call before it snows
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New specials on web site for Spring
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Benchmark Transmission wishes all our customers a Happy Thanksgiving!
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We are running specials on Honda and Acura Transmission overhauls. Updates that we perform are above what you find in stock factory rebuilds from Honda/Acura. Contact center closest to you for more details
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