
New Online Resource: Find Used Combines Equipped with Hillco Leveling Systems
Shop for a used Hillco combine with Hillco’s new online resource!
…with constant clogs and looking to increase the useful life of your combine’s air filter, BUT want to know more before upgrading?
Here we will address our most frequently asked questions about our combine Air Flow Systems.
The new Air Flow System will sit 55-60” above the deck. It will be the same height as the OEM bin extensions when unfolded. We have a T-Bolt clamp designed for convenient removal in low clearance areas.
The additional screen that sits below the Hillco pre-cleaner is necessary when harvesting leafy crops such as corn or milo/sorghum. Without the screen large leaves can get sucked into the Hillco pre-cleaner and cause the pre-cleaner to slow, not working efficiently. The additional screen prevents this.
The tractor’s engine draws air into the intake, which spins a set of impellers inside the pre-cleaner. The centrifugal force of the spinning impeller expels the heavier “dirty” particles out of the discharge louver. The left-over clean air is what then enters the intake.
Does my local dealer carry these?

Case IH dealers can order and sell them.
We provide a lifetime warranty on the pre-cleaner top and one year on the rest of the components.
The amount of improvement you will see depends entirely on the conditions. Generally, we see about a 10X increase in filter life if it had been plugging frequently before installation. For example, some customers are dealing with clogging air filters every couple of hours. In a situation like that, the Hillco kit may extend filter life so that they are only addressing a clog every 3-4 days. In less severe circumstances they can run much longer after installation. Hillco recommends never exceeding the OEM air filter replacement schedule.
Call Hillco’s sales team at 800-937-2461 or place an order online by clicking on the phone icon or "How Do I Order?" above!
If the kit is in stock it will usually ship from either Idaho or Wisconsin, the next business day.
Installation time varies by model. However, the average time required is 30-90 minutes.
No, the original air filter stays in place. We recommend that our customers verify the Case IH air filter is clean and the venturi suction tube from the exhaust is also free of debris before installation.
Please call the Hillco sales department. They will have ideas that will assist you and insight into kits that are under development. They may also have an existing kit that, with some modification, will suit your needs.

Shop for a used Hillco combine with Hillco’s new online resource!

How the Hillco SC1500 Helps Farmers Take Control of Harvest Specialty crop harvest leaves little room for guesswork. When the
Enter your farm data to calculate what a Hillco leveling system puts back in your pocket. Fields are pre-filled with study data — update the numbers that apply to your operation.
% of total acres per slope range — all crops combined (must total 100%)
With a Hillco leveling system, your combine harvests slopes at your flat-ground (0–3%) speed.
| Slope | Corn | Soybeans | Wheat |
|---|---|---|---|
| 0–3% | |||
| 4–9% | |||
| 10–15% | |||
| 16%+ |
| Slope | Corn | Soybeans | Wheat |
|---|---|---|---|
| 0–3% | |||
| 4–9% | |||
| 10–15% | |||
| 16%+ |
Typically 70% (separator hrs ÷ engine hrs)
$300–$400 new, ~$150 older. Enter $0 to exclude.
Typically 16–20 GPH
John Deere S7 Sidehill (18%): ~$84,000 | John Deere S7 Hillside (28%) w/ dual tire: ~$155,400 | Case IH Flagship Sidehill: ~$82,000 | Case IH Flagship Hillside w/ dual tire: ~$152,500. Consult your dealer for used values.
Hillco systems retain ~40% of original value after 5 years
Annual separator hours
Payback progress (5-year window)
Payback: calculating...
Results are estimates based on your inputs and Hillco study data. Actual results may vary.
Contact your local Hillco dealer for a personalized quote | 1-800-937-2461 | hillcotechnologies.com