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ShibauraJapanCatalog archive

Shibaura SD3943

Production years: 1980–1985

Compare with other modelsValue machine
Engine horsepower
39 HP
—
Displacement
1.5 L
4-cylinder engine
Drive and chassis
4WD
Gear (24F/8R)
Operating weight
1,839 kg
4,055 lbs

Sources and field evidence

Catalog Archive: Baseline specifications compiled from historical manufacturer archives and equipment registries. Laboratory test report verification in progress.

Shibaura SD3943
VLM Verified Authentic
Shibaura SD3943

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Engineering & Capability Benchmark

Specific output, tractive ratio, and segment percentile

Compact / Sub-Compact Yard
Global Tractor Fleet Power SpectrumTop 84% of all indexed machinery
Compact (20 HP)Utility (100 HP)Row-Crop (250 HP)Titans (600+ HP)
Specific Output
26.0 HP/L
Turbocharged
Traction Ratio
47.2 kg/HP
Heavy ballast for draft pull
PTO Efficiency
—
Mechanical driveline
Hydraulic Flow
Standard
Auxiliary implement ports

Engine and power specifications

Engine model
Shibaura LEM754AT
Fuel type
Diesel
Rated horsepower
39 hp
Rated PTO Power
N/A (Shibaura specification)
Cylinders
4
Displacement
1.5 L (90.6 ci)
Bore / stroke
N/A
Rated RPM
2750 RPM
Crankcase oil capacity
N/A
Coolant capacity
N/A

Maintenance picks for the SD3943

Filters, oil and common wear parts for this model.

Transmission and chassis specifications

Transmission type
Gear (24F/8R)
Gears (forward / reverse)
24 forward / 8 reverse
Drive system
4WD
Wheelbase
N/A
Front tire
8-18
Rear tire
12.4/11-28
Hydraulic flow
N/A
Rear hitch
I
ASABE EP496 Engineering Matcher

Implement Draft & Ballast Matcher

Simulate draft resistance, drawbar power transfer, and optimal axle weight distribution for Shibaura SD3943.

Overloaded / Wheel Slip Alert(192%)
CAD DRAFT SCHEMATIC • Wide-Span Field Cultivator
SOIL: Medium Tilled LoamDEPTH: 4"SPEED: 7 MPH192% LOAD
SOIL SURFACE (0.0")SUB-SURFACE PLOW PAN (~14")39 HP◄ 3,129 LBS DRAFT4" DEPTH
DRAWBAR DEMAND: 58.4 HPWIDTH / SIZE: 18 ft Width
ASABE D497.7 Tillage Specific Resistance Formula
Implement Size (ft Width)18 ft Width
18 ft WidthDefault: 4270 ft Width
Tillage / Seeding Depth4 inches (10 cm)
2"Target: 4"6"
Target Operating Field Speed7.0 mph (11.3 km/h)
5 mphRated: 7 mph9 mph
Engine Power Demand vs Rated Output74.9 HP / 39 HP Rated
0%55% (Min Load)60-85% (Sweet Spot)100% (Cap)
Draft Force
3,129 lbs
Drawbar Power
58.4 HP
Target Slip
8% - 12%
Axle Ballast Balance (MFWD / Mechanical Front Assist )Calibrated for Wide-Span Field Cultivator (100 lbs/HP standard)
Target: 3,900 lbs
Front Axle: 38%Rear Axle: 62%
672 kg (1,482 lbs)1,097 kg (2,418 lbs)
Ballast Adjustment vs Base:-155 lbs (-70 kg)
Hourly Diesel Burn
1.8 gal/h
6.8 L/hr (est. $7/h)
Hydraulic Fan Status
Standard Draw
No fan req

Engine demand (74.9 HP) exceeds rated power (39 HP). Reduce working speed by 1.0-1.5 mph or reduce working width.

Instant Used Market Valuation Projector

Algorithmic resale estimate for Shibaura SD3943 (1980)

Full Appraisal Tool
Operating Meter Hours3,200 hrs
Mechanical & Physical Condition
Empirical model calibrated against dealer & auction lots
Estimated Fair Market Value
$1,748
Basis: 39 HP • 46 yrs old
Auction / Wholesale
$1,433 – $1,608
Dealer Retail Asking
$1,835 – $2,063
3-Year Projected Resale Curve~5% annual retention decay
Year 2027
$1,661
Year 2028
$1,578
Year 2029
$1,499

Direct Segment Rivals & Showdowns

Head-to-head match-ups calibrated by horsepower and era

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Shibaura

Japan • 117 Models

Shibaura, officially known as IHI Shibaura Machinery Corporation, is a distinguished Japanese manufacturer of agricultural machinery with a strong emphasis on compact tractors and diesel engines. Founded as part of the IHI Corporation, a major Japanese industrial conglomerate, Shibaura has cultivated a reputation for engineering excellence and reliability in the agricultural sector. While specific historical details about the brand's founding are not widely documented, its association with IHI Corporation suggests a foundation built on robust industrial principles and a commitment to technological advancement. Shibaura's journey reflects a dedication to meeting the needs of modern farming operations, both in Japan and internationally, through the production of high-quality, efficient machinery. The company's product line is characterized by its compact tractors, which are particularly valued for their performance in diverse agricultural settings. Over the years, Shibaura has maintained its position as a leading supplier of compact tractors, leveraging its engineering heritage to innovate and adapt to the evolving demands of the agricultural industry. As a subsidiary of IHI Corporation, Shibaura benefits from the parent company's extensive resources and industrial expertise, further solidifying its presence in the global market. The brand's commitment to quality and innovation continues to drive its success, making it a trusted name in the field of agricultural machinery.

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