Flail mowerBlue Diamond
Heavy Duty 403740
87″ cutting width · 75–100 HP recommended (basis not stated) · spec sheet and manual
Ask the manufacturer whether the horsepower range means engine or PTO power.
LS MT7101 · FLAIL MOWERS
Blue Diamond rates its 87-inch 403740 at 75–100 hp without a basis; the LS MT7101 is inside on its 85.5 PTO hp but 0.6 over on its 100.6-hp engine. Every other flail mower here stops at 80 hp or less.
By Acreage Equipment · Reviewed November 14, 2026 · Specification research, not a field test
PUT THIS GUIDE TO WORK
See published mismatches and the checks still needed.


BEST MATCHES FOR THE MT7101
1 of 23 flail mowers we track pass the published power, hitch and speed screen. Each still has a detail to confirm with the seller.
Flail mowerBlue Diamond
87″ cutting width · 75–100 HP recommended (basis not stated) · spec sheet and manual
Ask the manufacturer whether the horsepower range means engine or PTO power.
THE DECISION IN NUMBERS
Tractor reference: LS MT7101CPS (cab, power shuttle); Category 2; 78.7 in. wide on tires; 5,952 lb at 24 in. (owner manual). Only Blue Diamond’s 403740 is not excluded, on PTO power.
Scroll the table sideways on smaller screens.
| Mower | Published requirement | On 85.5 PTO / 100.6 engine hp | Result |
|---|---|---|---|
| Blue Diamond 403740 (87-inch) | 75–100 hp, basis unspecified; Category I and II | Inside on 85.5 PTO; 0.6 over on 100.6 engine | Ask Blue Diamond |
| Land Pride FM2572 / FM2584 | 42 / 49–80 hp, basis unspecified; Category 1 and 2 | 5.5 over on PTO; 20.6 over on engine | Excluded |
| Land Pride FM2560 | 33–80 hp; Category 1 | Over and hitch mismatch | Excluded |
| WoodMaxx FM-78 / FM-78H / FM-78 Y | 30–65 PTO hp; Category 1 and 2 | 20.5 over | Excluded |
| Farmer-Helper FH-EFGC155 / 125 | To 65 PTO hp (page); Category 1 | Over and hitch mismatch | Excluded |
| TMG; WoodMaxx FM-62 / FM-54; Farmry | To 60 hp or less; Category 1 | Over and hitch mismatch | Excluded |
Both Land Pride FM25 mowers list Category 1 and 2 and run to 80 hp. The MT7101 is over that on either reading, so neither is screened as a match. The comparison below shows how the two differ on smaller tractors.
A flail mower’s published maximum is its maker’s limit for the gearbox and driveline. This site does not screen past it. Of the flail mowers here, only Blue Diamond’s 403740 lists a range that reaches 85.5 PTO hp, and the MT7101’s engine is 0.6 over its 100.
Ask Blue Diamond whether its 75–100 hp means engine or PTO power. The 403740 cuts 87 inches, covering the 78.7-inch tractor, weighs 1,763 lb before the shaft against 5,952 lb of lift, and needs a rear remote for its side shift.
LS’s September 2025 owner manual lists 5,952 lb 24 inches behind the lift point (8,378 lb at the link ends). Lift is not the limit for any attachment here; power is.
THE SCREEN, WITH ITS LIMITS VISIBLE
No pairing below is manufacturer-confirmed. “Preliminary” still requires implement limits, load center, ballast, hitch geometry and shaft checks.
Initial specification screen only. Scroll the table on small screens. Read the product page for every remaining check.
| Attachment | U.S. MT7101CPS · 24F/24R power shuttle · 4WD · cab · independent PTO85.5 PTO hp |
|---|---|
| Farmry LFS45 →355 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 35 hp maximum. |
| Farmry LFS53 →395 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 35 hp maximum. |
| Farmry LFS61 →421 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18 | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 35 hp maximum. |
| TMG Industrial TMG-TFM60 →650 lb · Product-page operation weight; manual gives conflicting 270 kg (about 595 lb) | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 60 hp maximum. |
| Farmry LFP47 →464 lb · 464 lb including PTO shaft on the product page; current Rev 1.3 manual lists 210 kg / 463.7 lb. Shipping weight is a separate 671 lb. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 45 hp maximum. |
| TMG Industrial TFMS50 →660 lb · Product-page operation weight: 660 lb. Manual structure weight: 300 kg (about 661 lb); shaft and fluid inclusion are not explicit. Shipping weight: 770 lb. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 60 hp maximum. |
| WoodMaxx FM-54 · Y-blades →408 lb · Current 2025-and-newer manual p40 lists 408 lb product weight without stating shaft inclusion. Page instead says 410 lb mower-only plus a 39 lb shaft. Do not treat 408 lb as a verified complete operating assembly; confirm delivered Y-blade weight. Shipping page figure is 500 lb. | Published mismatch85.5 PTO hp exceeds the published 25 hp range. |
| WoodMaxx FM-62H · Hammer blades →860 lb · Current 2025-and-newer manual, printed p40 / PDF p41: 860 lb product weight; shaft/oil/packaging inclusion is unstated. Page instead lists 716 lb mower-only plus a 39 lb shaft. Shipping is separately labeled 860 lb. Do not treat the manual number as verified complete operating weight; confirm delivered hammer assembly. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78H · Hammer blades →968 lb · Current 2025-and-newer manual, printed p40 / PDF p41: 968 lb product weight; shaft/oil/packaging inclusion is unstated. Page instead lists 804 lb mower-only plus a 39 lb shaft. Shipping is separately labeled 1000 lb. Do not treat the manual number as verified complete operating weight; confirm delivered hammer assembly. | Published mismatch85.5 PTO hp exceeds the published 65 hp range. |
| WoodMaxx FM-62 · Hammer blades →774 lb · Current 2025-and-newer manual printed p40 / PDF p41 lists 774 lb product weight without shaft/oil/packaging inclusion. Page lists 641 lb mower-only plus a 39 lb shaft; shipping is separately labeled 800 lb. Retain these distinct bases and confirm complete operating weight for the delivered hammer assembly. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78 · Hammer blades →880 lb · Current 2025-and-newer manual printed p40 / PDF p41 lists 880 lb product weight without shaft/oil/packaging inclusion. Page lists 710 lb mower-only plus a 39 lb shaft; shipping is separately labeled 900 lb. Retain these distinct bases and confirm complete operating weight for the delivered hammer assembly. | Published mismatch85.5 PTO hp exceeds the published 65 hp range. |
| Farmer-Helper FH-EFGC125 · Hammer blades →Operating weight unconfirmed · Complete operating weight is unverified. Current page: 576 lb “Weight” and 624 lb “Crated Weight.” Linked Rev 12-12-17 manual p23: 600 lb “Weight” and 635 lb crated. Product-weight shaft/oil/assembly inclusions are unstated. Keep these separate; do not use crate weight or silently choose one product figure as an operating load. | Published mismatch85.5 PTO hp exceeds the published 65 hp range. |
| Farmer-Helper FH-EFGC155 · Hammer blades →Operating weight unconfirmed · Complete operating weight is unverified. Current page: 741 lb “Weight” and 789 lb “Crated Weight.” Linked Rev 12-12-17 manual p23: 720 lb “Weight” and 755 lb crated. Product-weight shaft/oil/assembly inclusions are unstated. Keep these separate; do not use crate weight or silently choose one product figure as an operating load. | Published mismatch85.5 PTO hp exceeds the published 65 hp range. |
| WoodMaxx FM-62 · Y-blades →Operating weight unconfirmed · Complete Y-configuration operating weight is unverified. Current manual p40 gives 774 lb generic product weight without shaft/oil or blade-specific inclusion. Page gives 641 lb mower-only plus 39 lb shaft and separately 800 lb shipping. These bases conflict or lack scope; none substitutes for an assembled Y operating load. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
| WoodMaxx FM-78 · Y-blades →Operating weight unconfirmed · Complete Y-configuration operating weight is unverified. Current manual p40 gives 880 lb generic product weight without shaft/oil or blade-specific inclusion. Page gives 710 lb mower-only plus 39 lb shaft and separately 900 lb shipping. These bases conflict or lack scope; none substitutes for an assembled Y operating load. | Published mismatch85.5 PTO hp exceeds the published 65 hp range. |
| Land Pride FM2560 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 965 lb for the standard unit with a duckfoot rotor; the brochure lists 929 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 222 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 80 hp maximum. |
| Land Pride FM2572 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 1,040 lb for the standard unit with a duckfoot rotor; the brochure lists 1,040 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 261 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 80 hp maximum. |
| Land Pride FM2584 · hammer rotor →Operating weight unconfirmed · Manual p39 specifies 1,236 lb for the standard unit with a duckfoot rotor; the brochure lists 1,168 lb without a rotor/inclusion basis. The separate hammer-rotor assembly is 301 lb. No complete hammer operating mass or shipping mass is established. Do not add the rotor to an already rotor-inclusive unit weight or substitute these references for the operating load. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 80 hp maximum. |
| Blue Diamond Heavy Duty 403740 →1763 lb · 1,763 lb (800 kg) in the Aug-2025 spec sheet (without PTO) and the Feb-2026 manual p49. Add the PTO shaft for the operating load. | Needs specification reviewAsk the manufacturer whether the horsepower range means engine or PTO power. |
| Farmry HFS87 →1299 lb · 1,299 lb (589 kg) including PTO shaft on the product page and in the HFS manual Rev 1.6, printed p17. | Published mismatchBoth engine (100.6) and PTO (85.5) horsepower exceed the published 85 hp maximum. |
| Farmer-Helper FH-EF95 →330 lb · 330 lb retained, the heavier of the product page (325 lb) and the FH-EF manual p13 (330 lb); crated 360 lb. Neither says whether the included PTO shaft is counted. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
| Farmer-Helper FH-EF105 →347 lb · 347 lb retained, the heavier of the product page (342 lb) and the FH-EF manual p13 (347 lb); crated 377 lb. Neither says whether the included PTO shaft is counted. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
| Farmer-Helper FH-EF125 →390 lb · 390 lb retained, the heavier of the product page (390 lb) and the FH-EF manual p13 (383 lb); crated 438 lb. Neither says whether the included PTO shaft is counted. | Published mismatch85.5 PTO hp exceeds the published 45 hp range. |
Should a Category I/II tractor use the 72-inch or 84-inch hammer FM25?
Read the guide →FIELD GUIDETake the complete setup, not just a horsepower number, to the manufacturer.
Read the guide →FOLLOW THE NUMBERS
Research record reviewed November 14, 2026. Confirm the current manual and the exact revision supplied with your machine.