Case IH WD 1203 SERIES II – specifications
Series: Case IH Swather
Build year not documented · Data origin: Directory data · sources
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The Case IH WD 1203 Series II is the smallest self-propelled swather in Case IH's WD line. The four-cylinder Case IH FPT engine has 4,501.5 cm³, a turbocharger with charge air cooler and meets Tier 3; per Ritchie Specs it makes 126 hp. The wheelbase is 3,419.1 mm, the length without header 16.59 ft and the weight without header 10,948 lb.
The drive is a two-speed hydrostatic transmission. In the field it travels at up to 10.3 mph, on the road at up to 18 mph; the fuel tank holds 120 gallons.
The WD1203 appears in used listings from the 2009 model year, with a 36 ft double-knife header or a 30 ft draper header. The WD 1903 uses a six-cylinder engine of 6,700.7 cm³ with 190 hp; a 2009 WD 2303 is listed with 225 hp.
Case IH Swather: WD-series windrowers from WD 1203 to WDX 2302 with Case IH FPT engines, 4,502 to 7,500 cm³ displacement, four- to six-cylinder
Case IH builds self-propelled windrowers (swathers) in the WD range, which cut grain, grass and oilseeds and lay them into windrows before a combine picks them up. The WD designation stands for Windrower Drive, the four-digit number gives the machine size; suffixes such as Series II or Tier 3 Canada mark model revisions or the emissions stage certified for the Canadian market, while WDX marks the newest generation. The machines are powered by Case IH FPT engines, the product of CNH Industrial's in-house engine manufacturing (Fiat Powertrain Technologies).
Read on 3 more paragraphs
The register lists here 12 versions from four- to six-cylinder engines of 4,502 to 7,500 cm³ displacement.
Windrowers such as the WD range are chiefly used in North America, where canola, lentils and other oilseeds are wilted and windrowed ahead of threshing to better control harvest timing and grain moisture; Case IH competes here mainly with John Deere, New Holland and MacDon.
For a used purchase, check the condition of the cutting mechanism and knife bar, the function of the windrow canvas or auger, the tightness of the hydraulics for header tilt and ground following, and the operating hours and service condition of the FPT engine; spare parts run through the Case IH dealer network. On the Tier 3 Canada versions, it is also worth checking the exhaust aftertreatment components, whose wear varies considerably with service history.
Sources: SpecCodex register, model data: Case IH Swather, Case IH (manufacturer)
Technical data
Engine
| Engine make | Case IH FPTcorrect |
|---|---|
| Cylinders | 4correct |
| Displacement | 4,501.5 cm³correct |
| Aspiration | Turbo, with charge air coolercorrect |
Dimensions and weights
| Wheelbase | 3,419.1 mmcorrect |
|---|
Drivetrain and chassis
| Gearbox type | hydrostatic transmission, 2-speed Standardcorrect |
|---|
Frequently asked questions
What engine does the Case IH WD 1203 SERIES II have?
4 cylinders, 4,502 cm³ displacement.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 6 individual figures for this model. They come from 3 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: RitchieSpecs equipment specifications (retrieved August 2026) · dev.tractorzoom.com (retrieved October 2026) · cloudstore.co (retrieved October 2026) · Data sources and cross-checks
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