UCAL Fuel Systems Limited engages in the manufacture and sale of carburetors, mechanical fuel pumps, and multipoint fuel injection parts to the auto industry in India. The company's products include 4 wheeler carburetors, fuel pumps, 2 wheeler carburetors, genset carburetors, oil pumps, throttle body assembly, delivery pipe assembly, air suction valves, fuel filters, electric throttle valves, and machined castings. It offers its products primarily to original equipment manufacturers. The company was formally created and deployed as a legal entity in 1985 and is operating out of its headquarters in Chennai, India.

During the year 1997-1998, the company commenced the commercial production of Two Wheeler carburetor to TVS Suzuki Limited, Oil pump to Maruti Udyog Limited and in the same year the company installed capacity increased namely, two wheeler carburetors from 240,000 Nos to 400,000 Nos and Fuel Pumps from 120,000 Nos to 180,000 Nos. During the year 1998-1999, the company successfully formally introduced Maruti Omini carburetors and in the same year, the installed capacity of two wheeler carburetors was increased from 400,000 Nos to 740,000 Nos and four wheeler carburetors from 360,000 Nos to 420,000 Nos.

During the year 1998-1999, the company created and deployed third plant at Gurgaon, near Delhi and in the same year the company added a new product, namely Air suction Valve to its range. Air suction Valve a device used in four-stoke two wheelers manufactured by Hero Honda to meet emission norms. During the year1999-2000 the company commenced supplies of new model BS type carburetors for fitment to 4-stroke motorcycle 'FIERO' manufactured by TVS Suzuki Limited. During the year 2000-2001, the company commenced commercial production of Gurgaon plant and in the same year the company commenced supplies of new model of VM type carburetors for 4-stroke Yamaha Motor Crux motor -cycle and multi point fuel Injection parts such as Throttle Body and Delivery pipe Assembly to Mikuni Corporation, Japan. During the year the company supplied 100% of Hero Honda's requirement of Air Suction Valves (to meet emission norms) for producing 1 million motorcycles.

During year 2001-2002, the company formally introduced three products namely, Carburetors and Air Suction Valve for 110cc Motorcycles, New model BS type Carburetor for 4 stroke model Motorcycle, and Throttle Body for Electric Throttle Valve. During the year, the company purchased two Wind Electronic Generator situated at Nagercoil and in the same year the company increased the capacity of Choke Opener from 60,000 Nos to 100,000 Nos.

During the year 2002-2003, the company increased the installed capacity of Piston Valves from 300,000 Nos to 420,000 Nos and Pressure Die Castings from 540 tons to 780 tons. During the year 2003-2004, the company further increased the installed capacities of Piston Valves from 420,000 to 500,000 and Pressure Die Castings from 780 tons to 1000 tons.

During the year 2004-2005, the company supplied VM model carburetor to the Rear engine and front engine model of three wheeler passenger carriers of Bajaj Auto Limited and also the company successfully engineered the ASDI system for stroke three wheelers of Bajaj Auto Limited in technical assistance agreement with Orbite Engine Company, Australia. During the year the company increased the installed capacities of Throttle body assembly from 640,000 Nos to 760,000 Nos, Delivery pipe assembly from 600,000 Nos to 760,000 Nos and Fuel filter from 500,000 Nos to 600,000 Nos.

During the year 2006-2007, the company created and deployed a new plant at Maraimalai Nagar, and also commenced commercial production. During the year the company further increased the installed capacity of Throttle body assembly from 840,000 Nos to 1,000,000 Nos, Delivery pipe assembly from 840,000 Nos to 1,000,000 Nos and Fuel filter from 660,000 Nos to 720,000 Nos.

During the year 2008-2009, Ucal Machine Tools Ltd, the wholly owned subsidiary of the Company, amalgamated with the company.