Standard Cat 1 Hydraulic Top Links
Choose a standard Cat 1 hydraulic top link with ball joints at both ends. The range includes 50/30 mm and 40/25 mm bore/rod sizes. Select the appropriate series, then compare the retracted and extended lengths.
CHECK FIRST, THEN CHOOSE
Choose your top link by category, mounting dimensions, retracted and extended length, cylinder bore and piston rod diameter. Check both ends and compare the technical drawing with your tractor and implement. Category or tractor brand alone does not establish compatibility.
50/30 mm means a 50 mm cylinder bore and a 30 mm piston rod. For 40/25 mm, these dimensions are 40 and 25 mm. They are not the cylinder’s outside diameter or the mounting pin size.
The 50/30 drawings show a Ø19.2 mm mounting hole; the 40/25 drawings show Ø20 mm. A hole diameter is not automatically the nominal pin size. Check both ends and their widths on the product drawing.
Compare length and stroke
| Product | Length¹ | Stroke |
|---|---|---|
| SPH320071 · 50/30 | 360–470 mm | 110 mm |
| SPH320171 · 50/30 · extended | 390–500 mm | 110 mm |
| SPH320080 · 40/25 | 360–510 mm | 150 mm |
| SPH320034 · 50/30 | 650–1050 mm | 400 mm |
¹ Retracted–extended length from the metric product drawing. Open the product for full dimensions and supplied components.
An extended version does not necessarily have a longer stroke. SPH320071 and SPH320171 both have a 110 mm stroke, but their retracted and extended lengths differ.
Which dimensions should you compare?
A suitable hydraulic top link must match both the mounting points and the required adjustment range. Check these points before ordering:
Category and mounting dimensions: compare the pin size and the width or clearance available at both ends.
Retracted and extended length: check the measurement points on the technical drawing and compare the full range with your application. Stroke alone is not enough.
Hydraulic controls and connections: check the required controls, hose length and couplings on the product page and on your tractor.
Also compare the connection and profile of the quick couplings. The same nominal connection size alone does not confirm that two couplings will fit together.
Compare configurations
Category 1 Hydraulic Top Links · Standard Cat 1 Hydraulic Top Links · Cat 1 Hydraulic Top Links with Hook
Need individual parts? View our top link accessories and repair parts. Select replacement parts according to the specifications of your own configuration.
Frequently asked questions about hydraulic top links
Will a hydraulic top link fit any tractor brand?
Compatibility depends on the three-point linkage, mounting dimensions, required length and hydraulic connections. Choose according to the configuration and technical drawing, rather than tractor brand alone.
How do I measure the top link length I need?
Compare the required retracted and extended lengths with the drawing for your chosen product. Use the same measurement points as the drawing. Allow for clearance around the end fittings; comparing only the overall outside length or stroke is not enough.
Are hoses and quick couplings included?
This depends on the product. Check the supplied components, hose length and coupling configuration on the product page. This shows what is included and what else you may need.
Need help choosing your hydraulic top link?
Unsure which configuration you need? Send us your tractor model, photos of the mounting points and the dimensions of your current top link via WhatsApp. Tell us which implement you intend to use so we can help you check the options.
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