acreage.EQUIPMENT
Compare0Find equipment

THE ACREAGE EQUIPMENT FIELD GUIDE

When the brochure, web page and manual give different hitch categories

A tractor’s hitch category decides which attachments mount before horsepower is even checked. KIOTI’s documents disagree on four current models: two of three sources say Category II and the third says Category I, in different combinations. No document wins by default. The lower-link ends on the tractor settle it.

By Acreage Equipment · Reviewed November 9, 2026 · Specification research, not a field test

PTO wood chippers at work
In this guide

THE DECISION IN NUMBERS

KIOTI hitch category by source

Values quoted from KIOTI’s September 2025 DK20/DK20SE, NS and NX brochures, current model web pages and the DK20 (2023), NS (2021) and NX owner’s manuals, reviewed November 9, 2026.

Scroll the table sideways on smaller screens.

ModelBrochureWeb pageManualRecorded
KIOTI DK5520Category IICategory 1Category IICategory 2 (conflict)
KIOTI DK6020SEHCategory IICategory 2Category ICategory 2 (conflict)
KIOTI NS6010 / NS6010HCategory IICategory 2Category ICategory 2 (conflict)
KIOTI NX5510 / NX5510HCategory I & IICategory 1Category ICategory 1 (conflict)
KIOTI DK4220SEH / DK4720SEHCategory ICategory 1Category ICategory 1
Sources for this decision table (10)

Four models, three patterns

For the DK5520, the September 2025 brochure and the 2023 manual say Category II and the web page says Category 1. For the DK6020SEH and NS6010, the 2025 brochure and current web pages say Category II and the older manuals say Category I. For the NX5510, the brochure says Category I & II and the web page and manual say Category 1.

How this site records it

The site records the category that two of the three KIOTI sources agree on, marks the profile as a conflict and shows all three on the page. That makes the DK5520, DK6020SEH and NS6010 Category 2 and the NX5510 Category 1. The screen results follow: on Category 2, Category 1-only attachments such as WC88, FH-BX62S, FH-EFGC155 and FM2560 drop out.

Why it matters more than a few horsepower

The DK6020SEH’s 44.9 PTO hp is 0.1 under FH-BX62S’s 45-hp ceiling. On Category 1 ends it would be a close but documented fit; on Category 2 ends it does not mount without adapters. The attachment list for the same tractor changes from a dozen options to a handful.

What to check

Look at the lower-link ball ends and top-link pin, or ask the dealer to state the category in writing on the quote. If the tractor has Category 2 ends and you want a Category 1 attachment, read the site’s guide on Category 2 tractors with Category 1 attachments before ordering adapters.

Take these questions with you.

  1. Do my tractor’s brochure, web page and manual list the same hitch category?
  2. Which lower-link ends and top-link pin are actually fitted?
  3. Does the attachment list Category 2, or Category 1 only?
  4. Will the dealer state the fitted category on the quote?

Keep these questions with your exact tractor and attachment details.

Use these questions in my seller brief

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 9, 2026. Confirm the current manual and the exact revision supplied with your machine.

  1. KIOTI DK20 / DK20SE brochure (PDF created September 17, 2025)Printed/PDF pp6–7 specifications: Engine Gross, PTO hp, pump capacity, 3-point hitch category, Maximum Lifting Capacity* (@ 24 in. aft of hitch), remote valves, width
  2. KIOTI DK5520 current U.S. product pageFull Specs: Power, PTO Power, Pump Capacity, Lift Capacity, Hitch Category, Width, Weight
  3. KIOTI DK6020HSE current U.S. product pageFull Specs: Power, PTO Power, Pump Capacity, Lift Capacity, Hitch Category, Width, Weight
  4. KIOTI U.S. DK20 owner’s manual, 2023-09-22PDF pp48–56 (printed 3-4 to 3-12): engine gross power, PTO power, 3-point hitch category, lift 2,716 lb from 24 in. / 2,998 lb at lower link ball, ROPS weight; PDF p59 (printed 3-15): implement limitations
  5. KIOTI NS Series brochure (PDF created September 12, 2025)PDF p12 Specifications: model columns and 3-point hitch row
  6. KIOTI NS6010 current U.S. product pageFull Specs: Hitch Category 2
  7. KIOTI NS ROPS owner’s manual NS-ROPS-OM-ENGLISH-210916PDF pp47–49: 3-point hitch type Category I
  8. KIOTI NX Series brochure (PDF created September 18, 2025)p12 Specifications: model columns and 3-point hitch row
  9. KIOTI NX5510 current U.S. product pageFull Specs: Hitch Category 1
  10. KIOTI NX4510/NX5010/NX5510/NX6010 owner’s manual NX-OM-ENGLISH-160425PDF pp56–61: Category I
  11. Current index-linked Farmer-Helper FH-BX42 & 62 manualPrinted p2 / PDF p3: 25 minimum and 45 Max PTO HP
  12. Official U.S. WC88 page: price, capacity and drive system
  13. Current linked WC88 operator manual, Rev C, 22-Aug-2022
  14. Official FM-78 page: exact hammer variant, price and equipment
  15. Current FM-62/62H and FM-78/78H manual: printed p40 / PDF p41
  16. WoodMaxx manual index: Models 2025 to current
  17. Official current FH-BX62S product page: exact SKU, USD price and conflicting power/weight text
  18. Official FH-BX62S series page: self feed and current-manual link
  19. Product-linked older manual, Revision 1-3-2018, p38
  20. Betstco official manual index

EQUIPMENT IN THIS GUIDE

Check prices and fit for the attachments discussed.

MAKE THE NEXT CHECK

Continue with the related decision.

FIELD GUIDE

A Category 2 tractor and Category 1 attachments

Moving up to a tractor with a Category 2 hitch removes many compact-tractor attachments from the shortlist, even when the power is right. Most small chippers and flail mowers list Category 1 only. Look for attachments that document Category 2 mounting, and treat any adapter route as something the maker must approve in writing.

Read the guide →FIELD GUIDE

“Category 1 & 2” on a spec sheet: which hitch is actually fitted

Many mid-size compact tractors list their three-point hitch as Category 1 and 2. That usually means the hitch can be set up for either, not that both sets of hardware are on the tractor. The same document can describe a Category 1 hitch in its feature list. Before ordering an attachment, confirm which lower-link ends, pins and top link are fitted.

Read the guide →FIELD GUIDE

Spanned cells in a spec table: which models does that value cover?

Brochure spec tables often print one value across several model columns. When the span is not marked, it can be unclear which models a value belongs to. KIOTI’s September 2025 NX brochure prints “Category l” across one group of columns and “Category l & ll” across another; its web pages and manual give Category 1 for every model. Check a spanned value against a per-model source before relying on it.

Read the guide →

MAKE THE TRADEOFFS CLEAR

Read a focused comparison.

SIDE BY SIDE

Farmer-Helper FH-EFGC125 vs WoodMaxx FM-78: 48-inch or 70-inch fixed hammer

Fixed hammer flail: FH-EFGC125 or FM-78?

Read the guide →SIDE BY SIDE

Farmer-Helper FH-BX62S vs WoodMaxx WM-8H: 6.5-inch gravity or 8-inch hydraulic feed

Compact tractor at 25–45 PTO hp: FH-BX62S or WM-8H?

Read the guide →SIDE BY SIDE

Farmer-Helper FH-BX62S vs Woodland Mills WC46: gravity feed or hydraulic feed between 25 and 30 PTO hp

Tractor at 25–30 PTO hp: FH-BX62S or WC46?

Read the guide →
Browse all equipment comparisons →