620 - 691 HP Mega DraftVerified Specifications Duel

John Deere 9RX 640 vs Case IH Steiger 620 Quadtrac

600+ HP Heavy Draft Warfare: 4-Track Ground Pressure & Drawbar Pull

Open in Dynamic Arena

Deere

9RX 640

Catalog Archive

2021Tracks (4-Track)

9RX 640

Archived Specification Record

Rated Power

640 HP

Displacement

13.6 L

Weight

56,320 lbs

View Full Deere 9RX 640 Dossier

CaseIH

Steiger 620 Quadtrac

Catalog Archive

Rated Power

620 HP

Displacement

12.9 L

Weight

N/A

View Full CaseIH Steiger 620 Quadtrac Dossier

Comparative Engineering Analysis

Key mechanical takeaways distilled from factory technical manuals and Nebraska Tractor Test Laboratory records.

Deere 9RX 640 runs the 13.6L JD14 / Cummins 15L vs Case IH Steiger 620 powered by 12.9L FPT Cursor 13 twin-stage turbo

Both machines produce over 620–690 max engine horsepower to pull 50+ ft field cultivators

Articulated positive-drive 4-track architecture minimizes field soil compaction and power-hop

Industry-leading 115 gpm dual-pump hydraulics available for massive air seeder fan demands

Comprehensive Specification Matrix

Specification	Deere 9RX 640	CaseIH Steiger 620 Quadtrac
Manufacturer / Brand	Deere	CaseIH
Production Years	2021	2014–2023
Engine Model	John Deere JD14	FPT
Cylinders & Fuel	6-cyl • Diesel	6-cyl • Diesel
Rated Engine Horsepower	640 HP	620 HP
Engine Displacement	13.6 L	12.9 L
Transmission Type	full power shift	full power shift
Hydraulic Total Flow	Factory Standard	Factory Standard
Shipping / Operating Weight	56,320 lbs	N/A
Wheelbase & Chassis	162.5 in • Tracks (4-Track)	154 in • Tracks (4-Track)
Nebraska Test & Provenance	OEM Archival	OEM Archival

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