cOOPER'S Waukesha VHP engines
Cooper is now a complete provider of parts, service, repairs, and upgrades for Waukesha VHP engines.

Cooper has expanded its aftermarket service offerings for the Waukesha VHP engine product line. We have been a market leader in the supply of parts, service, upgrades, and technical support for Waukesha and other brand engines and compressors since 1978.
Cooper services all aspects of Waukesha engines from its 71,000 sq.ft. facility in Deer Park, Texas. We maintain a vast inventory of new spare parts, maintenance kits, and remanufactured and exchange components to provide 100% coverage for your Waukesha engines. In addition to replacement parts, Cooper provides reconditioned and exchange “zero hour” overhauled engines (dyno operated and approved), to better serve our customers’ requirements. To further enhance the performance of your legacy Waukesha VHP engines, our engineering team has developed many control modernization, ignition, and parts upgrades.
We have a complete product line of overhaul parts for VHP Series 2 (7042, 3521, 9390) model units. We are constantly expanding our offerings to include other product models. We provide 100% coverage for all of your parts requirements, including complete water pumps, exhaust manifolds, front end gears, oil pumps, cylinder heads, hydraulic push rods, and cam follower assemblies.
Cooper has provided a complete line of engine field and shop services for Waukesha VHP engines for decades. From preventative maintenance, to shop and field overhauls, to field machining, to repairs in our many global shops, our Cooper service teams are fully trained on Waukesha VHP engines and stand ready to assist our customers with all their service needs.
Cooper is your one-stop-shop for both technology and engineering services upgrades for your Waukesha VHP engine. With our advanced technologies, expertise, and project management experience, we offer Waukesha VHP upgrades to reduce engine emissions, increase horsepower, improve efficiencies and reliability of your equipment, and reduce maintenance costs.
Cooper now offers even more upgrade technologies including the HyperLogic™, ePCC™, ePFI™, and control panel upgrades. The Engine Services team offers engine emissions reduction and efficiency improvement upgrades, applicable to all types of Waukesha VHP engines.
Cooper’s new Waukesha VHP after-sale service is an inaugural member of the Emerging LegendsTM Series, our portfolio of new products and services that advance the industry and transform Cooper’s traditional way of doing business. Emerging Legends™ serves as a testament to the Cooper commitment of optimizing performance of legacy engines and compressors, helping our customers extend the life of their equipment, and bringing environmentally sustainable solutions to the market.
Located in Deer Park, Texas. Cooper is recognized globally as a supplier of Cooper parts, service, repairs, and exchange engines for the Waukesha VHP product line.
EnDyn was started by two former Cooper employees in 1978. Since then, it has been a market leader in the supply of parts, service upgrades, and technology support for Waukesha engines and compressors. Cooper has been a legendary leader in gas compression and power generation for nearly two centuries. With various acquisitions, Cooper’s Waukesha VHP technical expertise and parts and service offerings have grown exponentially to support our customers.
Product Model | Bore x Stroke (in) | Rated Speed (rpm) | Rated HP |
---|---|---|---|
P9390GSI | 9⅜ x 8½ | 1200 | 2250 |
P9390GSI | 9⅜ x 8½ | 1200 | 1980 |
L7044GSI | 9⅜ x 8½ | 1200 | 1680 |
L7042GSI | 9⅜ x 8½ | 1200 | 1480 |
L7044L | 9⅜ x 8½ | 1200 | 920 |
L5794GSI | 8½ x 8½ | 1200 | 1380 |
L5794LT | 8½ x 8½ | 1200 | 1450 |
L5774LT | 8½ x 8½ | 1200 | 1280 |
F3524GSI | 9⅜ x 8½ | 1200 | 840 |
F3514GSI | 9⅜ x 8½ | 1200 | 740 |
F3524GSI | 9⅜ x 8½ | 1200 | 460 |
P9390G | 9⅜ x 8½ | 1200 | 1366 |
L7042G | 9⅜ x 8½ | 1200 | 1025 |
F3521G | 9⅜ x 8½ | 1200 | 515 |
Cooper Machinery Services and its products and services are not sponsored, authorized, or endorsed by Caterpillar, Clark, Ingersoll Rand, Waukesha, or Worthington. All non-O.E.M. product names are property of their respective owners. Any references to trademarked names are solely for informational purposes and do not constitute a claim of ownership by Cooper Machinery Services of CAT, Clark, Ingersoll Rand, Waukesha, or Worthington. CAT is a registered trademark of Caterpillar, Inc. Waukesha is a registered trademark of INNIO Waukesha Gas Engines, Inc. Ingersoll Rand is a registered trademark of Ingersoll Rand, Inc.”