Case IH 403 Combine Parts

403 parts and accessories

The Case IH 403 combine, manufactured from 1969-1971, was a popular choice for farmers seeking a reliable and straightforward harvesting solution. Typically equipped with a 95 HP engine and available with header widths up to 15 feet, the 403 utilized a conventional separator. Its simple design and robust build quality made it a workhorse for smaller and mid-sized farms harvesting a variety of grains.

The Case IH 403 combine was introduced in 1969 as part of Case IH's efforts to provide efficient and dependable harvesting solutions. Production continued through 1971. The 403 featured an IHC 291 engine with 95 horsepower and a 291 cubic inch displacement. Its separator relied on a conventional cylinder system, known for its effective threshing action. The grain tank capacity was approximately 65 bushels, with an unloading auger capable of emptying at a rate of around 25 bushels per minute. Farmers could equip the 403 with headers ranging from 10 to 15 feet in width, allowing for versatility in different field conditions. While chopper and spreader options were available, the focus was on efficient grain harvesting. The cab offered basic operator comfort and controls. The Case IH 403 excelled at harvesting grains such as wheat, soybeans, and corn, particularly in fields where maneuverability and reliability were paramount.

Specifications

Engine	IHC 291 95 HP Diesel
Separator Type	Conventional - 40 inch Cylinder Width
Grain Tank	65 bushels
Unloading Rate	25 bu/min
Header Widths	10-15 ft
Fuel Capacity	35 gallons
Weight	7,500 lbs
Years Produced	1969-1971

Maintenance Tips

Regularly inspect and adjust the concave clearance to ensure proper threshing and minimize grain loss.
Check and maintain proper tension on all belts and chains to prevent slippage and premature wear.
Thoroughly clean the sieves and chaffers to maintain optimal airflow and separation efficiency.
Grease all bearings and lubrication points regularly, following the manufacturer's recommended schedule.

History & Background

The Case IH 403 combine was introduced in 1969 as a mid-range model in the Case IH combine lineup. It represented a continuation of Case IH's commitment to providing reliable and affordable harvesting equipment to farmers. While not revolutionary in its design, the 403 proved to be a dependable machine that contributed to the success of many farming operations.