Production years
1975-1978
New Holland combine ยท 1975-1978
New Holland TR70 Combine
The New Holland TR70 was the first production Twin Rotor combine and a landmark US-built rotary harvester. It offered substantial 1970s capacity through two longitudinal rotors rather than a conventional cylinder and straw walkers.
Threshing system
Twin Rotor rotary threshing and separation
Engine
Ford six-cylinder turbo diesel, 145 hp; Caterpillar V8 option commonly cited at 165 hp
Grain tank capacity
158 bu
New Holland TR70 specifications
| Production years | 1975-1978 |
|---|---|
| Threshing system | Twin Rotor rotary threshing and separation |
| Engine | Ford six-cylinder turbo diesel, 145 hp; Caterpillar V8 option commonly cited at 165 hp |
| Grain tank capacity | 158 bu |
| Header compatibility | New Holland grain platforms and corn heads; approximately 13-24 ft platforms common |
| Weight | Approximately 14,800 lb without header |
| Defining specification | First production New Holland Twin Rotor combine |
What the TR70 is used for
The TR70 was designed for grain and row-crop farms wanting high capacity and gentler crop handling than conventional straw-walker machines could offer. Its twin counter-rotating rotors were intended for corn, soybeans, wheat, and small grains.
Today, it is chiefly a collector and low-acreage machine, though a sound example can still harvest crops with careful setup. Owners value it as the starting point of New Holland's long Twin Rotor combine lineage.
Why the New Holland TR70 stands out
The TR70 is historically notable as the first production Twin Rotor combine and New Holland's first combine built in the United States. Its rotary concept influenced decades of subsequent New Holland harvesters, giving the model lasting collector interest.
Buying a used New Holland TR70
Inspect both rotors, concaves, rotor-drive belts and gearboxes, feederhouse chain, hydraulic drives, clean-grain elevator, grain-tank and unloading-auger flighting, and final drives. Check for metal fatigue, corrosion, missing original parts, and evidence of long storage, and confirm engine option and exact figures with TractorData.com and New Holland manufacturer records.
New Holland TR70 frequently asked questions
What horsepower is a New Holland TR70?
The Ford turbo-diesel version is commonly cited at 145 hp; a Caterpillar V8 option is commonly cited at 165 hp.
What was special about the New Holland TR70?
It was the first production New Holland Twin Rotor combine, using two longitudinal rotors for threshing and separation.
What is the grain tank size of a TR70?
The TR70 is commonly cited with a 158-bushel grain tank.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used combines vary by condition, hours, and region. Page updated Aug 4, 2026.