For over 150 years, Stanadyne has been creating innovative solutions to the world’s most challenging problems.
1876
Christopher Spencer
Christopher Spencer invents the automatic screw machine; thus, Hartford Machine Screw Company is born.
1934
Hartford Machine Screw Company Merger
To begin building a reputation as a design and engineering focused company, Hartford Machine Screw Company merges with its affiliates to form Standard Screw.
1947
Vernon D. Roosa Joins Stanadyne
Vernon D. Roosa joins Standard Screw to perfect his design for an on-engine diesel pump.
1952
The World's First Diesel Rotary Pump
Standard Screw introduces the Roosa Master Injection Pump, the world’s first Diesel Rotary Pump.
1958
DB Model Rotary Pump
Standard Screw builds on its diesel fuel pump line with the introduction of the DB Model Rotary Pump.
1963
The Pencil Nozzle Injector
Standard Screw develops the Pencil Nozzle Injector, an innovative, compact design that delivers fuel into the center of the cylinder.
1970
Stanadyne is Established
Standard Screw becomes Stanadyne, keeping part of its legacy name and drawing off of ‘dynamic’ to progress the image of the company.
1973
Introduction to Startmaster
Stanadyne introduces the Startmaster, an air starter for large truck applications.
1988
Stanadyne Expands to Italy
Stanadyne acquires its Brescia, Italy plant to manufacture diesel fuel injectors.
1993
World's First Electronic Rotary Pump
Stanadyne develops the DS Model Rotary Pump, the first electronically governed pump of its kind.
2002
DE Model Rotary Pump
Stanadyne introduces the DE Model Rotary Pump. Stanadyne and the Amalgamations Group agree to a joint venture and open a facility in Chennai, India.
2006
World's First 200 bar GDI pump
Stanadyne develops the world’s first 200 bar gasoline direct injection pump for the automotive market.
2007
China Opens Facility
Changshu, China facility opens its doors to engineer and manufacture pumps for Chinese OEMs.
2011
Fuel Efficient Pumps Developed
Stanadyne develops a line of Diesel Common Rail Pumps that offered improved fuel efficiency over other market offerings at the time.
2013
Stanadyne Enters Racing Industry
Stanadyne enters the high-end racing industry with the highest-capacity gasoline direct injection pump, helping to secure victory in a pivotal race.
2025
Over 1 million units produced
The 200 Bar gasoline direct injection pump reaches the manufacturing milestone of 1 million units produced. Stanadyne develops the world’s smallest gasoline direct injection pump.
2026
Stanadyne Celebrates 150 Years of Innovation
One of only a few automotive companies that can trace its roots to America’s Reconstruction Era, Stanadyne’s legacy of innovation dates back to 1876. For 150 years, the company has proudly helped shape innovative systems and components around the world.
For over 100 years, Stanadyne has been creating innovative solutions to the world’s most challenging problems.
Christopher Spencer
Christopher Spencer invents the automatic screw machine; thus, Hartford Machine Screw Company is born.
Hartford Machine Screw Company Merger
To begin building a reputation as a design and engineering focused company, Hartford Machine Screw Company merges with its affiliates to form Standard Screw.
Vernon D. Roosa Joins Stanadyne
Vernon D. Roosa joins Standard Screw to perfect his design for an on-engine diesel pump.
The World's First Diesel Rotary Pump
Standard Screw introduces the Roosa Master Injection Pump, the world’s first Diesel Rotary Pump.
DB Model Rotary Pump
Standard Screw builds on its diesel fuel pump line with the introduction of the DB Model Rotary Pump.
The Pencil Nozzle Injector
Standard Screw develops the Pencil Nozzle Injector, an innovative, compact design that delivers fuel into the center of the cylinder.
Stanadyne is Established
Standard Screw becomes Stanadyne, keeping part of its legacy name and drawing off of ‘dynamic’ to progress the image of the company.
Introduction to Startmaster
Stanadyne introduces the Startmaster, an air starter for large truck applications.
Stanadyne Expands to Italy
Stanadyne acquires its Brescia, Italy plant to manufacture diesel fuel injectors.
World's First Electronic Rotary Pump
Stanadyne develops the DS Model Rotary Pump, the first electronically governed pump of its kind.
DE Model Rotary Pump
Stanadyne introduces the DE Model Rotary Pump. Stanadyne and the Amalgamations Group agree to a joint venture and open a facility in Chennai, India.
World's First 200 bar GDI pump
Stanadyne develops the world’s first 200 bar gasoline direct injection pump for the automotive market.
China Opens Facility
Changshu, China facility opens its doors to engineer and manufacture pumps for Chinese OEMs.
Fuel Efficient Pumps Developed
Stanadyne develops a line of Diesel Common Rail Pumps that offered improved fuel efficiency over other market offerings at the time.
Stanadyne Enters Racing Industry
Stanadyne enters the high-end racing industry with the highest-capacity gasoline direct injection pump, helping to secure victory in a pivotal race.
Over 1 million units produced
The 200 Bar gasoline direct injection pump reaches the manufacturing milestone of 1 million units produced. Stanadyne develops the world’s smallest gasoline direct injection pump.