We're National Gear & Piston - The Diesel People
914-699-5800   |   225 S 4th Ave., Mt Vernon, NY 10550


about national gear and piston

Your One Stop Heavy Duty Diesel Shop!!!

Our machine shop and component reman-manufacture center offer a wide range of services. Our outstanding reputation as an expert diesel engine remanufacturer is well deserved. From small Perkins and Duetz to high horsepower Cummins and Detroits, National Gear & Piston, Inc. more reliably "reman" any motor we offer.

Other machine shop services include component rebuilding such as heads and water pumps, casting repairs such as block grafting and line boring, flywheel cutting, and piston assembly.

Our machine shop service has always been a staple of what we do at National Gear & Piston. It rounds out a comprehensive service program for the heavy duty diesel industries.

Our repair platform is staffed by dedicated technicians who are experts at diagnosing problems quickly and most importantly accurately. We are an engine and injection center, but we also specialize in brake and clutch overhauls, hydraulic, transmission, electrical systems, and air conditioning.

We even do restoration, crash repairs, and body work.

Whether you're hauling heavy weights or making small deliveries with foreign trucks,we can maximize your "up-time" with scheduled preventive maintenance using top quality lubricants and filters. We compliment our service with Saturday morning appointments, and we are a N.Y.S. safety and emission inspection station.

Our parts department is well stocked with a broad array of spare, OEM, and replacements parts. From clutches to batteries, filters to mufflers, we offer outstanding service, knowledgeable and professional personnel, and prompt delivery. Our reputation has been built on the “tough to get" items-when it can't be found, National Gear & Piston will come up with it!

For over decades National Gear & Piston has been servicing the heavy duty diesel needs of the trucking, transit, construction, and machine industries. We can't thank you enough for letting us introduce National Gear & Piston to you:


What Sets National Gear & Piston (NG&P) Apart…

  • NG&P has significant experience and roots in the diesel engine repair industry.
  • NG&P began growing as an expert in the business of diesel engine repairs, engine remanufacturing, parts, and other services for over 62 years.
  • NG&P has a factory trained team of successful diesel engine experts.
  • NG&P’s displays a commitment to quality service and customer satisfaction.
  • We try our best to make service repairs the first time…we dismantle with an eye to the future.
  • NG&P’s list of satisfied customer have offered reviews that point to the fact that the NG&P factory trained team is hard-working, dedicated, diligent, caring, committed, trusted…our list is growing ever longer.
  • NG&P’s philosophy sets us apart because we analyze and problem-solve, fix the failure and ensure that the correction has been made.
  • NG&P has on premises diesel air filter cleaning services.
  • Each quality assurance step of our custom remanufacturing includes custom inspections, pressure tests, micrometer measured, careful vision inspection and magna-fluxing with premium parts. All of this is done to provide you with “like new” guaranteed results.
  • Your downtime is minimal that is tremendous $$$ savings for you.
  • Invoice factoring is possible and 3 party financing is available.
  • NG&P of Mount Vernon, NY 10550 is conveniently located to all of New York City, Northern New Jersey, Southern Connecticut and Long Island.
  • Pickup and delivery services are available.
  • Roadside service where permitted is available.

We service Cummins and Mack diesel engines…and with so much more to share, just call us. We want to hear from you at 914.699.5800.

National Gear & Piston, Inc.
“The Diesel People”

Pasquale "Pat" Luongo

Mr. Pasquale "Pat" Luongo began the precursor to NG&P in 1955 In Mount Vernon, NY.

Check Us Out On Facebook!

There's much to see here. So, take your time, look around, and learn all there is to know about us. We hope you enjoy our site and take a moment to drop us a line.