Founded in 1968 by Arnold Andreotti, ARNOLD’S is a family-owned business proudly serving the local and broad agriculture community.  Originally founded as an Allis-Chalmers dealership in Colusa County, California, ARNOLD’S has grown to provide a wide variety of new and used parts, service and repair, machine and fabrication shop for agriculture equipment.

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New and Used Parts

ARNOLD’S has a wide inventory of new and used replacement parts for tractors, combines, machinery and implements, as well as farm supplies, tools and accessories. Products includes:

Ag Spray
Ag Wheels, Hubs & Spindles
Bearings, Seals, Belts & Chains
Bird Control
Combine & Header Parts
Chopper & Mower Parts
Discs, Tillage & Cultivator Parts
Farm Supplies
Hardware & Fasteners
Hydraulic Valves, Hose, Fittings & Clamps
Irrigation & Levee Dams
Oil, Grease, Lubricants
Personal Protective Equipment (PPE)
Seats & Canopies
Small Engines & Pumps
Steel & Metal
Tractor and Implement Parts
Towing & Trailer Accessories
Welding Supplies

Machine and Fabrication Shop

ARNOLD’S provides custom manufacturing and repair services for the agricultural and industrial industries. With manual and CNC machines and lathes, we are able to design and produce a variety of solutions to meet your needs. In addition, we carry a full stock of steel – cut to size, punch, burn, grind while you wait.


Customer satisfaction is our basic core value, and our employees are our greatest asset. We look to attract and retain friendly, talented and energetic individuals with industry experience to create a high performing team that delivers an efficient and quality customer experience.

Contact us for more information at (530) 458-5125 or arnoldsac@hotmail.com

COVID-19 Update - In an on-going response to the rapidly evolving virus outbreak, we have implemented enhanced hygiene and cleaning protocols and enacted social distancing practices to help stop the spread while remaining open to support our essential agricultural business customers. We ask that our customers also take prudent steps to protect our employees, each other, and the most vulnerable members of our communities. If you would like to arrange for shipping or curbside pickup and transactions, please call us at (530) 458-5125 or email arnoldsac@hotmail.com.