TractorDex
TractorDexIndex
International HarvesterUSACatalog archive

International Harvester 323

Production years: 1966–1975

Compare with other modelsValue machine
Engine horsepower
27.6 HP
PTO: 22.9 HP
Displacement
1.8 L
3-cylinder engine
Drive and chassis
2WD
Gear (8F/2R)
Operating weight
1,979 kg
4,365 lbs

Sources and field evidence

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

International Harvester 323
VLM Verified Authentic
International Harvester 323

Ask TractorDex AI Copilot About 323

Instant technical consultation powered by heavy machinery knowledge

Engineering & Capability Benchmark

Specific output, tractive ratio, and segment percentile

Compact / Sub-Compact Yard
Global Tractor Fleet Power SpectrumTop 89% of all indexed machinery
Compact (20 HP)Utility (100 HP)Row-Crop (250 HP)Titans (600+ HP)
Specific Output
15.3 HP/L
Aspiration: Unknown
Traction Ratio
71.7 kg/HP
Heavy ballast for draft pull
PTO Efficiency
83%
22.9 PTO HP rated
Hydraulic Flow
Standard
Auxiliary implement ports

Engine and power specifications

Engine model
International Harvester D-111
Fuel type
Diesel
Rated horsepower
27.6 hp
Rated PTO Power
22.9 hp (International Harvester specification)
Cylinders
3
Displacement
1.8 L (111.4 ci)
Bore / stroke
3.437x4.00 inches 87 x 102 mm
Rated RPM
1900 RPM
Crankcase oil capacity
4.3 qts (~4.1 L)
Coolant capacity
7.9 qts (~7.5 L)

Maintenance picks for the 323

Oil capacity 4.3 qts — match the filter before you drain.

Transmission and chassis specifications

Transmission type
Gear (8F/2R)
Gears (forward / reverse)
8 forward / 2 reverse
Drive system
2WD
Wheelbase
71.3 in
Front tire
6.00-16
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 International Harvester 323.

Overloaded / Wheel Slip Alert(302%)
CAD DRAFT SCHEMATIC • Wide-Span Field Cultivator
SOIL: Medium Tilled LoamDEPTH: 4"SPEED: 7 MPH302% LOAD
SOIL SURFACE (0.0")SUB-SURFACE PLOW PAN (~14")27.6 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 Output83.4 HP / 27.6 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 (2WD Standard Utility )Calibrated for Wide-Span Field Cultivator (100 lbs/HP standard)
Target: 2,760 lbs
Front Axle: 28%Rear Axle: 72%
351 kg (773 lbs)901 kg (1,987 lbs)
Ballast Adjustment vs Base:-1,605 lbs (-728 kg)
Hourly Diesel Burn
1.3 gal/h
4.9 L/hr (est. $5/h)
Hydraulic Fan Status
Standard Draw
No fan req

Engine demand (83.4 HP) exceeds rated power (27.6 HP). Reduce working speed by 1.0-1.5 mph or reduce working width.

Instant Used Market Valuation Projector

Algorithmic resale estimate for International Harvester 323 (1966)

Full Appraisal Tool
Operating Meter Hours3,200 hrs
Mechanical & Physical Condition
Empirical model calibrated against dealer & auction lots
Estimated Fair Market Value
$1,242
Basis: 27.6 HP • 60 yrs old
Auction / Wholesale
$1,018 – $1,143
Dealer Retail Asking
$1,304 – $1,466
3-Year Projected Resale Curve~5% annual retention decay
Year 2027
$1,180
Year 2028
$1,121
Year 2029
$1,065

Direct Segment Rivals & Showdowns

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

Deere+4.4 HP
820
32 HP
Fordson+4.4 HP
Dexta
32 HP
Volvo+4.4 HP
T425
32 HP

Looking for a used International Harvester 323?

Browse live listings and auction results near you.

International Harvester

USA • 253 Models

The International Harvester Company (IH or International) was a pioneering American industrial powerhouse founded in 1902 through the merger of five leading agricultural equipment manufacturers, including the McCormick Harvesting Machine Company and Deering Harvester Company. This strategic consolidation created one of the largest agricultural machinery manufacturers in the world, with an immediate impact on the industry. International Harvester quickly became renowned for its innovative Farmall tractors, which revolutionized farming practices with their versatility and efficiency. The company's product line expanded to include the iconic Cub Cadet tractors, as well as the consolidated McCormick-Deering line that carried forward the legacy of its founding companies. Beyond its dominance in the agricultural sector, International Harvester was a major player in commercial vehicles, producing the popular Scout and Travelall automobiles, along with a wide range of trucks. The company's diverse portfolio also included lawn and garden equipment and household appliances, making it a household name across America. However, the 1980s brought significant challenges as the company faced financial difficulties. In response, International Harvester began divesting its divisions, starting with the sale of its construction equipment division to Dresser Industries in 1982. The pivotal moment came in 1984 when the farm equipment division was acquired by Tenneco's subsidiary, Case Corporation, leading to the formation of the Case IH brand. Today, Case IH is part of CNH Industrial, while the European division lives on as McCormick Tractors, owned by Italy's ARGO SpA. By 1986, International Harvester had transformed into Navistar International, focusing exclusively on trucks and engines.

View Full International Harvester Lineup