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Which tractors fit the Blue Diamond Heavy Duty 403740? Configurations near its limits

Blue Diamond rates the Heavy Duty 403740 at 75–100 hp (basis unspecified); 12 of the 294 configurations here are not excluded by its limits. The table lists the configurations closest to its power limits and weight, where the answer is most likely to change.

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

Flail mowers at work
In this guide

THE DECISION IN NUMBERS

Configurations nearest the Blue Diamond Heavy Duty 403740’s limits

Within 3 hp of 75–100 hp (basis unspecified) or near its weight; up to 28 rows, sorted by hp. Results from the site’s screen; † recorded source conflict.

Scroll the table sideways on smaller screens.

ConfigurationPTO hpEngine hpLift at 24 in.Screen result
John Deere 5075E power shuttle cab57.673.73,192 lbExcluded: under minimum
John Deere 5075M power shuttle57.7755,150 lbNot excluded
Case IH Farmall Utility 75A power shuttle60744,300 lbExcluded: under minimum
John Deere 4075R HST cab †6074.32,500 lbExcluded: under minimum
Kubota M4-071HDC12 gear cab †6072.13,307 lbExcluded: under minimum
Kubota M4D-071HDC12 gear cab †6072.13,307 lbExcluded: under minimum
Kubota M7060 gear †6072.13,307 lbExcluded: under minimum
John Deere 5075E open station60.373.73,192 lbExcluded: under minimum
KIOTI RX7340 power shuttle60.973.14,327 lbExcluded: under minimum
Case IH Farmall Utility 75C power shuttle †61743,956 lbExcluded: under minimum
LS MT573 gear cab62734,718 lbExcluded: under minimum
LS MT573 power shuttle cab62734,718 lbExcluded: under minimum
LS MT473 gear62.9733,483 lbExcluded: under minimum
LS MT473 power shuttle62.9733,483 lbExcluded: under minimum
KIOTI RX7320 power shuttle †63733,898 lbExcluded: under minimum
Massey Ferguson MF 2607H gear64742,755 lbExcluded: under minimum
TYM T754 gear cab64.1743,418 lbExcluded: under minimum
Yanmar SM475 power shuttle cab64.1743,418 lbExcluded: under minimum
LS MT774 power shuttle cab65.673.75,181 lbExcluded: under minimum
TYM T5075 power shuttle cab67.174.33,418 lbExcluded: under minimum
John Deere 5090E open station7590Not publishedNot excluded
John Deere 5090E power shuttle cab7590Not publishedNot excluded
Kubota M5-091 gear7692.54,630 lbNot excluded
Massey Ferguson MF 4709 power shuttle77904,850 lbNot excluded
John Deere 5100E open station85100Not publishedNot excluded
John Deere 5100E power shuttle cab85100Not publishedNot excluded
LS MT7101 power shuttle cab85.5100.65,952 lbNot excluded
Massey Ferguson MF 4710 power shuttle87994,850 lbNot excluded
Sources for this decision table (18)

The published range

Blue Diamond lists the Heavy Duty 403740 at 75–100 hp (basis unspecified). Blue Diamond does not say whether the range means engine or PTO horsepower, so this site excludes a tractor only when both figures fall outside it.

How 294 configurations screen

Of the 294 tractor configurations profiled on this site, 12 are not excluded and 282 fall under the minimum. Not excluded is not approval: most pairings still need the maker or dealer to confirm the setup.

By brand

Configurations not excluded, by brand: Case IH 0 of 31; John Deere 6 of 39; KIOTI 0 of 37; Kubota 2 of 39; LS 1 of 32; Mahindra 0 of 17; Massey Ferguson 3 of 29; New Holland 0 of 18; TYM 0 of 37; Yanmar 0 of 15.

Closest exclusions

The configurations closest to the line are just under the minimum: John Deere 4075R HST cab † (74.3 hp), TYM T5075 power shuttle cab (74.3 hp), TYM T754 gear cab (74 hp). A newer spec sheet, a different transmission or the maker’s confirmation can change these.

Weight and hitch

This site retains a 1,763-lb weight for the Heavy Duty 403740. No configuration that clears the power range lists less lift 24 inches behind the hitch than that; tractors with no published 24-inch lift are held for review. It mounts on a Category 1 and 2 hitch.

Take these questions with you.

  1. Which exact configuration and transmission is the tractor?
  2. Does Blue Diamond confirm the Heavy Duty 403740 at the tractor’s rating?
  3. What is the complete weight with the PTO shaft?
  4. What does the dealer list for lift 24 inches behind the hitch?

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. Blue Diamond flail mower page — 35–100 HP line, Category 1 & 2, hydraulic side shift and downloads
  2. Blue Diamond flail mower spec sheet, revised 08.21.25 — heavy-duty 403740 row
  3. Blue Diamond Heavy Duty Flail Mower manual (Feb 2026) — p4 model table, p49 specifications
  4. John Deere price pages, Tractors 5050E/5060E/5067E/5075E (5 November 2025): 5075E Cab Utility Tractor (08C1LV)08C1LV base equipment: 73.7 97/68/EC engine horsepower; 57.6 PTO horsepower @ 2,100 rpm; 3-Point (Category II) Hitch with Sway Bars - Convertible to Category I
  5. John Deere 5M Series utility tractors brochure (PDF created November 26, 2025), linked from the current 5075M pagep14 5M Tractors / Specifications: rated engine hp @ 2,200 rpm; rated PTO hp @ 2,100 rpm (5075M 57.7, 5105M 90); Rear Hitch Category 2 (convertible to 1); lift capacity 24 in. behind lift point with EH hitch, standard 5,150 lb (2,336 kg), optional 5,950 lb
  6. Case IH Farmall utility tractors brochure (PDF created August 21, 2026)Small Utility Specifications (65C, 70A, 75A, 75C): Engine HP, PTO HP, 3-point Hitch Category 1/2, Lift Capacity (footnote 2: measured @ 24 in. behind pin), transmission, weight
  7. John Deere U.S. order book, 5 May 2026 — 4075R base machine (039ALV)Order code 039ALV: engine 74.3 hp gross SAE J1995, PTO 60 hp, HST 3-range
  8. Kubota 2026 full-line catalogPrinted p26: M4 series table: horsepower (gross)* SAE J1995, horsepower (PTO)
  9. KIOTI RX20/RX40 brochures (PDF created November 6, 2025)RX40 specifications: Engine Gross HP 66.4 / 73.1, PTO HP 54.9 / 60.9, power shuttle, Category II, Maximum Lifting Capacity* 4,327.7 lb (*@ 24 in. aft of hitch), weight with AG tires
  10. LS MT5 series brochure (PDF created July 18, 2025)p2 specifications: Engine HP (kW) 73 (54.4), PTO (HP) 62, rear PTO 540/750/1,000, CAT II, hitch lift capacity (hitch end) 6,614 lb
  11. LS MT4 series brochure (PDF created July 18, 2025)p2 MT4 Series Specifications: Engine HP (gross) 63 / 73, PTO (HP) 54.1 / 62.9, 540/540E, Category (3pt hitch) CAT II, hitch lift capacity 3,483 lb @ 24 in. from the hitch end
  12. Massey Ferguson MF 2600 H Series brochure (PDF created June 8, 2023)Printed p7 Technical Specifications: rated engine and PTO power, transmission, rear PTO (live / independent), 3-point lift capacity @ pins and @ 24 in. behind, ROPS weight
  13. TYM T754 North America product brochure (PDF created August 2025)PDF p5 specifications: gross engine power, PTO power, rated engine speed, PTO rear rpm, transmission, category 3-point hitch, hitch lift capacity and hitch lift capacity at 24 inches behind link ends, overall width, weight
  14. Yanmar SM Series brochure (PDF created September 11, 2024)Specifications: engine gross power, PTO power, rated engine speed, 3-point hitch category, 3-point lift capacity (std.) and at 24 in., transmission, total weight
  15. LS MT7 series brochure (PDF created September 25, 2025), linked from the current MT774CPS and MT7101CPS pagesp2 specifications: Engine HP (kW) 73.7 (55) / 100.6 (75); PTO HP 65.6 / 85.5; independent PTO 540/750/1,000; CAT II; hitch lift capacity 7,275 / 8,378 lb; overall width 78.7 in.; weight 7,827 / 7,985 lb
  16. TYM Catalog 2026 – Series 5 brochure (PDF created February 8, 2026), linked from the current T5074 and T5075 pagesp11 Specification Guide, T5075: engine power 74.3 hp; PTO power 67.1 hp; F16 x R16; Category II; hitch lift printed 5,515 lb | 2,320 kg; 3,418 lb at 24 in. behind link ends; PTO 540/750; width 92.3 in.
  17. John Deere price pages, Tractors 5090E/5090EL/5100E (5 November 2025): 5090E Open Operator Station Tractor (08AJP)08AJP base equipment: Rated Engine Power 90 hp; Rated PTO Power 75 hp (manufacturer’s rating, 2,400 rpm); independent 540/540E PTO; telescopic draft links with Category II balls; 12F x 12R PowrReverser base
  18. AGCO MF 4700 Platform and Cab standard-features sheets (October 2025, F.O.B. port of entry), on AGCO’s dealer configuratorHorsepower (Max Engine @ 2000 RPM; Rated Engine & PTO @ 2200 RPM) per model, platform pp1 and cab p3; PTO independent 540/540E; Rear Linkage: ASAE Category II with telescopic ball ends, lift capacity at 24 in. 4,850 lb (2,200 kg)

EQUIPMENT IN THIS GUIDE

Check prices and fit for the attachments discussed.

MAKE THE NEXT CHECK

Continue with the related decision.

FIELD GUIDE

Attachment weight vs. tractor lift capacity

A product weight below a three-point lift rating is only the start of a load check. The two figures may describe different measuring points, configurations or operating conditions. Subtracting them does not produce an approved safety margin.

Read the guide →FIELD GUIDE

Choosing flail mower width for your tractor track

A mower’s model name is not a tire-coverage measurement. The useful comparison is actual cutting width against the outside rear-tire span of your tractor, plus the offset and overlap the job needs. Measure the machine you own before using a generic model recommendation.

Read the guide →FIELD GUIDE

Meeting an attachment’s minimum PTO horsepower exactly: what zero margin means

A tractor whose PTO rating equals or barely exceeds an attachment’s minimum is inside the published range, and nothing more. Several makers attach separate capacity statements well above their minimums. When the margin is zero or one horsepower, also check the source of each number and what the maker expects at that power.

Read the guide →