Sources and field evidence
Catalog Archive: Baseline specifications compiled from historical manufacturer archives and equipment registries. Laboratory test report verification in progress.
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Engineering & Capability Benchmark
Specific output, tractive ratio, and segment percentile
Engine and power specifications
- Engine model
- Yanmar 4TNV84
- Fuel type
- Diesel
- Rated horsepower
- 44 hp
- Rated PTO Power
- 40 hp (McCormick Intl specification)
- Cylinders
- 4
- Displacement
- 2 L (121.7 ci)
- Bore / stroke
- 3.307x3.543 inches 84 x 90 mm
- Rated RPM
- 2800 RPM
- Crankcase oil capacity
- N/A
- Coolant capacity
- N/A
Maintenance picks for the GM45
Filters, oil and common wear parts for this model.
Transmission and chassis specifications
- Transmission type
- Creeper (16-speed)
- Gears (forward / reverse)
- 16 forward
- Drive system
- 4WD
- Wheelbase
- 66.9 in
- Front tire
- 240/70R16
- Rear tire
- 360/70R20
- Hydraulic flow
- 12.6 GPM
- Rear hitch
- IN Opt Optional
Implement Draft & Ballast Matcher
Simulate draft resistance, drawbar power transfer, and optimal axle weight distribution for McCormick Intl GM45.
Theoretical draft formula suggests 4,400 lbs. Official manufacturer GVWR is unrecorded for this catalog entry, so target weight is constrained to an engineering structural estimate (~135% of base operating weight) to prevent chassis overload.
Engine demand (74.9 HP) exceeds rated power (44 HP). Reduce working speed by 1.0-1.5 mph or reduce working width.
Target ballast is capped at 4,316 lbs based on structural engineering estimate (~135% base weight; official manufacturer GVWR unrecorded). Avoid adding excess ballast beyond this benchmark to protect axle bearings and chassis.
Instant Used Market Valuation Projector
Algorithmic resale estimate for McCormick Intl GM45 (2011)
Direct Segment Rivals & Showdowns
Head-to-head match-ups calibrated by horsepower and era
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McCormick Intl
United Kingdom • 177 Models
McCormick International is a tractor brand with a rich heritage rooted in agricultural machinery manufacturing. The brand was revived in 2000 by ARGO, an Italian agricultural machinery conglomerate, which acquired the rights to the historic McCormick name and began producing tractors at the former International Harvester factory in Doncaster, England. This strategic move allowed ARGO to leverage the esteemed McCormick brand, which dates back to the 19th century when Cyrus Hall McCormick pioneered mechanical reapers, revolutionizing farming practices. The modern McCormick tractors are designed to carry forward this legacy of innovation and reliability in the agricultural sector. ARGO's acquisition of the McCormick name was part of a broader industry realignment following the merger of Case and International Harvester, which led to regulatory requirements for divestiture of certain assets. Under ARGO's stewardship, McCormick has continued to develop a range of tractors that cater to diverse farming needs, from small-scale operations to large commercial farms. The brand's product line reflects a commitment to modern technology while honoring its historical roots.
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