Case · D Series series

Case DC

Name: Case DC
Brand: Case

Row-crop tractor · 1939–1953 · Gasoline

The Case DC was J.I. Case's mainstay row-crop tractor of the late 1930s through early 1950s, powered by a 4-cylinder, 259.5 cubic-inch gasoline engine producing roughly 37 belt horsepower. Offered in multiple wheelbase configurations (including the wide-front DC-3 and tricycle-front DC-4), it became one of Case's best-selling models of the pre-war and immediate post-war era. Its Nebraska Test 340 rating of 33 drawbar and 37 belt horsepower placed it squarely in the mid-size row-crop class alongside rivals like the John Deere A and Farmall M.

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Photo: Acroterion. License: CC BY-SA 4.0.

belt power: 37.3 hp
Weight: 5,300 lb (2,404 kg)
Displacement: 260 ci (4.3 L)

Overview
Type	Row-crop
Series	D Series
Production	1939–1953
Factory	Racine, Wisconsin, USA

Engine
Make	J.I. Case
Fuel	Gasoline
Cylinders	4
Displacement	260 ci (4.3 L)
Bore × stroke	3.875x5.50 in
Rated speed	1,100 rpm
Compression	5.58:1
Cooling	liquid-cooled
Aspiration	Naturally aspirated

Power
Drawbar power	33.1 hp (24.7 kW)
Belt power	37.3 hp (27.8 kW)
Nebraska test	Nebraska Test 340

Transmission
Transmission	sliding-gear, unsynchronized — 4 forward, 1 reverse
Chassis	4x2 2WD

Dimensions & capacities
Weight	5,300 lb (2,404 kg)
Fuel capacity	19 gal (71.9 L)
Aux fuel	2 gal (7.57 L)
Coolant	26 qt (24.6 L)
Front tires	5.50-16
Rear tires	11.25-36

History

Introduced in 1939 as part of Case's redesigned "Flambeau Red" D Series, the DC replaced the earlier C Series row-crop models and brought Case's styling in line with the streamlined, industrial-design trends sweeping American tractor manufacturing in the late 1930s. The letter suffix "C" designated the row-crop variant within the D Series family, which also included the D (standard-tread), DO (orchard), DI (industrial), DV (high-clearance), and DEX/DHX export models.

The DC was built in several configurations to suit different farming needs, including narrow tricycle-front and adjustable wide-front versions, and was offered with gasoline, distillate, or LP-gas fuel options depending on the customer's needs and region. Production ran for over a decade, spanning the pre-war, wartime, and immediate post-war years, making it one of the longer-lived models in Case's row-crop lineup before the company transitioned to its numbered series (300, 400, 500) in the 1950s.

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