Embed

Paste on your site — shows live UK/US specs and links back here. Free to use.

<iframe src="https://farmfleetspecs.com/embed/oliver-oc-12" width="100%" height="430" loading="lazy" style="border:1px solid #e6e8e4;border-radius:14px;max-width:560px" title="Oliver OC-12 specs — FarmFleetSpecs"></iframe>

Tractor · 1955Unverified

Oliver OC-12

Name: Oliver OC-12
Brand: Oliver

Oliver OC-12 — Agricultural Crawler tractor · 63 hp. Reference specifications; pending source verification.

The Oliver OC-12 is a compact tractor with a rated power output of 63 hp, manufactured between 1955 and 1960. It features a 6-cylinder diesel liquid-cooled engine, coupled with a 4-speed gearbox and a tracked undercarriage. The tractor's weight is listed at 4955 kg, making it suitable for tasks requiring up to 200 acres of coverage.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

63 hp

Max power

37.9 kW

Weight

4955 kg

Catalogue coverage

Variants represented

Richest spec table

73 rows

Recorded power

63 hp

Recorded weight

4955 kg

Transmissions

4-speed gear

Production years

1955-1960

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerOliverReference

Agricultural Crawler tractorReference

Built in Cleveland, Ohio, USAReference

DrivecrawlerReference

Open operator station.Reference

Variants

OC-12crawlerReference

OC-126crawler-loaderReference

Engine

Hercules 5.6L 6-cyl gasolineReference

Hercules 4.9L 6-cyl dieselReference

Fuel tank132.5 LReference

Engine47.0 kWReference

Drawbar (claimed)39.5 kWReference

Belt (claimed)44.0 kWReference

Drawbar (tested)37.9 kWReference

Belt (tested)43.2 kWReference

Hercules JXLDReference

gasolineReference

6-cylinderReference

liquid-cooled vertical L-headReference

vertical L-headReference

Displacement5.6 LReference

Bore/Stroke102 x 114 mmReference

Power47.0 kWReference

Compression6.25:1Reference

Rated RPM1750Reference

Starter volts6Reference

Coolant capacity22.7 LReference

Hercules DJXCReference

dieselReference

liquid-cooled vertical I-headReference

Displacement4.9 LReference

Bore/Stroke95 x 114 mmReference

Power45.9 kWReference

Compression15.5:1Reference

Starter volts12Reference

Oil capacity11.4 LReference

Coolant capacity18.9 LReference

Belt power (max)43.2 kWReference

Max power37.9 kWReference

Belt power (max)42.2 kWReference

Max power37.7 kWReference

Transmission

4-speed gearReference

TypegearReference

Gears4 forward and 2 reverseReference

Oil capacity30.3 LReference

Dimensions

Weight4955 kgReference

14-inch tracksReference

Length278 cmReference

Width147 cmReference

Width193 cmReference

Height168 cmReference

Weight4955 kgReference

Ground clearance35 cmReference

Gauge111 cmReference

Gauge152 cmReference

Oliver OC-12 attachments

bladeReference

Oliver OC-12 Tracks

4-roller width35 cmReference

4-roller length on ground172 cmReference

4-roller area on ground1.2 m²Reference

5-roller width35 cmReference

5-roller length on ground181 cmReference

5-roller area on ground1.3 m²Reference

Test results

NTTL 548: gasoline 4-speed crawlerReference

NTTL 549: diesel 4-speed crawlerReference

Gasoline 4-speed crawlerJune 15 - 28, 1955Link: Nebraska Tractor Test 548 fileReference

Belt fuel use (max)22.7 l/hourReference

Drawbar performanceReference

Gear 2 used for power test.Reference

Max pull4716 kgReference

Gear 1 used for pull test.Reference

Diesel 4-speed crawlerJune 15 - 28, 1955Link: Nebraska Tractor Test 549 fileReference

Belt fuel use (max)18.2 l/hourReference

Max pull5140 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

Partner tool · Free

Working out if you can afford this tractor?

YourIncomeCalculator.com — free, HMRC-aligned take-home pay, self-employment & VAT calculators. No sign-up.

Calculate your take-home pay

Recommended kit

Handy kit for owners

Popular tractor and farm accessories owners pick up for machines like this.

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a small commission — at no extra cost to you. Learn more.