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John Deere 5100E · FLAIL MOWERS

John Deere 5100E flail mowers: Blue Diamond’s 403740

Blue Diamond rates its 87-inch 403740 at 75–100 hp, and the John Deere 5100E is inside on 85 PTO hp and exactly at the ceiling on 100 engine hp. Every other flail mower here stops at 80 hp or less.

See the best matchesAll 5100E attachments

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.

John Deere 5100E hub: studio image of the 5100E utility tractor, front right view
Manufacturer photo · John Deere
Flail mowers at work

BEST MATCHES FOR THE 5100E

Flail mowers to shortlist.

2 of 23 flail mowers we track pass the published power, hitch and speed screen on at least one configuration. Each still has a detail to confirm with the seller.

Blue Diamond Heavy Duty 403740 flail mowerFlail mower

Blue Diamond

Heavy Duty 403740

87″ cutting width · 75–100 HP recommended (basis not stated) · spec sheet and manual

12F/12R PowrReverser: Possible — confirm details12F/12R PowrReverser: Possible — confirm details

Confirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.

Check seller priceAsk for a quote
Explore buying options at Blue Diamond
Fit details
Farmry HFS87 flail mowerFlail mower

Farmry

HFS87

87″ cutting width · 30–85 HP (basis not stated) · official page and manual

12F/12R PowrReverser: Possible — confirm details12F/12R PowrReverser: Possible — confirm details

Confirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.

$4,499checked November 14, 2026
Check current price at Farmry
Fit details
21 ruled out by published specs

THE DECISION IN NUMBERS

Flail screens at 85 PTO hp, 100 engine hp, Category 1 or 2

Tractor reference: John Deere 5100E cab or open station, November 2025 price pages; Category 2 convertible to 1; lift at 24 in. not published. Only Blue Diamond’s 403740 passes the screen.

Scroll the table sideways on smaller screens.

MowerPublished requirementOn 85 PTO / 100 engine hpResult
Blue Diamond 403740 (87-inch)75–100 hp, basis unspecified; Category I and IIInside on both (100 engine exactly at the maximum)Fits
Farmry HFS8730–85 hp, basis unspecified; Category I/II; 87-in. cutPTO exactly at 85; engine 15 overAsk Farmry which hp it means; 24-in. lift unpublished
Land Pride FM2560 / FM2572 / FM258433 / 42 / 49–80 hp, basis unspecified5 over on PTO; 20 over on engineExcluded
WoodMaxx FM-78 / FM-78H / FM-78 Y30–65 PTO hp20 overExcluded
Farmer-Helper FH-EFGC155 / 125To 65 PTO hp (page)20 overExcluded
Other mowers here except HFS87To 60 hp or lessOverExcluded
Sources for this decision table (19)

FM2572 and FM2584

Both Land Pride FM25 mowers run to 80 hp. The 5100E is over that on either reading, so neither is screened as a match. The comparison below shows how the two differ on smaller tractors such as the 5090E.

Why the maximum matters

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 and Farmry’s HFS87 list ranges that reach 85 PTO hp. The 5100E’s 100 engine hp sits exactly on the 403740’s ceiling and 15 over the HFS87’s.

Blue Diamond 403740

Blue Diamond rates its heavy-duty 87-inch 403740 at 75–100 hp without saying engine or PTO, lists Category I and II, and ships it with 18 inches of hydraulic side shift. The 5100E is inside on both figures with no margin on engine power; with no published 24-inch lift, ask the dealer to check the weight. It weighs 1,763 lb before the PTO shaft and needs a double-acting rear remote for the side shift.

Lift is not published

Deere’s pages say Model Year 2024 5090E and 5100E tractors lift up to 4,600 lb at the rear hitch but do not say where that is measured, and no 24-inch figure is listed as it is for the 5050E–5075E. Ask the dealer for the lift 24 inches behind the hitch before relying on it for a heavy attachment.

Farmry HFS87: 87-inch cut, Category I and II

Farmry rates the HFS87 at 30–85 hp without saying whether that is PTO or engine power, lists Category I and II, cuts 87 inches and weighs 1,299 lb with the shaft. Its 85 PTO hp is inside, but its 100 engine hp is 15 over 85, so the answer depends on which figure Farmry means; ask before buying. No lift 24 inches behind the hitch is published for this tractor, so get that figure before hanging 1,299 lb on it. Farmry rates the gearbox at only 50 hp, below this tractor’s 85 PTO hp; ask Farmry how hard it can be driven. The 87-inch cut is 3 inches wider than Land Pride’s FM2584. Farmry’s page listed it at $4,499 on November 14, 2026.

THE SCREEN, WITH ITS LIMITS VISIBLE

Compare each configuration.

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.

AttachmentU.S. 5100E · 12F/12R PowrReverser · open station · 540/540E PTO85 PTO hpU.S. 5100E · 12F/12R PowrReverser · cab · 540/540E PTO85 PTO hp
Farmry LFS45 →355 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18Published mismatchBoth engine (100) and PTO (85) horsepower exceed the published 35 hp maximum.Published mismatchBoth engine (100) and PTO (85) horsepower exceed the published 35 hp maximum.
Farmry LFS53 →395 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18Published mismatchBoth engine (100) and PTO (85) horsepower exceed the published 35 hp maximum.Published mismatchBoth engine (100) and PTO (85) horsepower exceed the published 35 hp maximum.
Farmry LFS61 →421 lb · Net weight WITH PTO shaft, current LFS manual Rev 1.7 p18Published mismatchBoth engine (100) and PTO (85) horsepower exceed the published 35 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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) and PTO (85) horsepower exceed the published 60 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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) and PTO (85) horsepower exceed the published 45 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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) and PTO (85) horsepower exceed the published 60 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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 PTO hp exceeds the published 25 hp range.Published mismatch85 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 PTO hp exceeds the published 45 hp range.Published mismatch85 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 PTO hp exceeds the published 65 hp range.Published mismatch85 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 PTO hp exceeds the published 45 hp range.Published mismatch85 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 PTO hp exceeds the published 65 hp range.Published mismatch85 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 PTO hp exceeds the published 65 hp range.Published mismatch85 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 PTO hp exceeds the published 65 hp range.Published mismatch85 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 PTO hp exceeds the published 45 hp range.Published mismatch85 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 PTO hp exceeds the published 65 hp range.Published mismatch85 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) and PTO (85) horsepower exceed the published 80 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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) and PTO (85) horsepower exceed the published 80 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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) and PTO (85) horsepower exceed the published 80 hp maximum.Published mismatchBoth engine (100) and PTO (85) 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 reviewConfirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.Needs specification reviewConfirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.
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.Needs specification reviewConfirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.Needs specification reviewConfirm the actual hitch category, required bushings and complete mounting arrangement; multiple listed categories do not establish quick-hitch compatibility.
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 PTO hp exceeds the published 45 hp range.Published mismatch85 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 PTO hp exceeds the published 45 hp range.Published mismatch85 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 PTO hp exceeds the published 45 hp range.Published mismatch85 PTO hp exceeds the published 45 hp range.
GO DEEPER

Land Pride FM2572 vs FM2584: hammer-rotor configurations

Should a Category I/II tractor use the 72-inch or 84-inch hammer FM25?

Read the guide →FIELD GUIDE

Before-you-buy checklist

Take the complete setup, not just a horsepower number, to the manufacturer.

Read the guide →

FOLLOW THE NUMBERS

Sources & documentation

Research record reviewed November 14, 2026. Confirm the current manual and the exact revision supplied with your machine.

  1. John Deere price pages, Tractors 5090E/5090EL/5100E (5 November 2025): 5100E Open Operator Station Tractor (697TP)697TP base equipment: Rated Engine Power 100 hp; Rated PTO Power 85 hp (manufacturer’s rating, 2,400 rpm); independent 540/540E PTO; telescopic draft links with Category II balls; 12F x 12R PowrReverser base
  2. John Deere 5100E Open Operator Station current U.S. product pageSpecifications: rated engine power; Rear Hitch Category (SAE Designation) Category 2, convertible to 1; PTO category; pump output; Benefits: MY2024 rear hitch lift capacity up to 4,600 lb (2,100 kg), load point not stated
  3. John Deere 5100E Cab current U.S. product pageSpecifications: rated engine power; Rear Hitch Category (SAE Designation) Category 2, convertible to 1; PTO category; pump output; Benefits: MY2024 rear hitch lift capacity up to 4,600 lb (2,100 kg), load point not stated
  4. Land Pride FM25 Series product pageFM2560 / FM2572 / FM2584 model listing; dealer quote
  5. Land Pride FM25 operator manual 333-138M (7/1/24)Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies
  6. Land Pride FM25 brochurePrinted p12 model table
  7. WoodMaxx FM-78 official product pageBlack/hammer SKU FM-78-0006; 30–65 PTO hp; 70-in. cut; 80 in. overall; weight; hitch type; price
  8. Official FM-78H page: hammer option, price, equipment and conflicting weights
  9. WoodMaxx 2025-to-current FM series operator manualPrinted p40 / PDF p41: blade-specific PTO requirements, cutting width, fixed extents, hitch category and Category 2 bushings, product weight
  10. Farmer-Helper FH-EFGC155 · Hammer blades official product pageHP Requirements at PTO (25–65); Cutting Width; Overall Width; Weight; price
  11. Official Betstco FH-EFGC125 product page: exact model, current USD offer, dimensions and conflicting specifications22–65 PTO hp on the product page; 48-in. cut
  12. TMG Industrial official U.S. TFM60 product page — Current price, operation weight, width and shipping weightPrice, operation weight, width and 30–60 HP range
  13. TMG TFMS50/60/72 manual, 2025-01-09p6: tractor power must not exceed 50 PTO hp; cutting width 1,250 mm
  14. Blue Diamond flail mower page — 35–100 HP line, Category 1 & 2, hydraulic side shift and downloads
  15. Blue Diamond flail mower spec sheet, revised 08.21.25 — heavy-duty 403740 row
  16. Blue Diamond Heavy Duty Flail Mower manual (Feb 2026) — p4 model table, p49 specifications
  17. Farmry HFS87 official product pageTractor power 30–85 HP (basis not stated); gearbox 50 HP; 87-in. cut, 96-in. overall; Category I/II; 1,299 lb with PTO shaft; price $4,499
  18. Farmry HFS/HFSS Series operator manual, Rev 1.6Printed p17 specifications: HFS87 30–85 HP, gearbox 50 HP (36.75 kW), 2,200-mm cut, Category I/II, 589 kg
  19. Official U.S. WC88 page: price, capacity and drive system
  20. Current linked WC88 operator manual, Rev C, 22-Aug-2022
  21. Official WM-8H product page: power, feed, hitch and price
  22. WM-8H linked manual — assembly p20 and maintenance p29 give different fill quantities
  23. WoodMaxx current manual index
  24. Official MX-8800 page: power/capacity claims, feed, hitch and current sale price
  25. MX-8800 manual Rev D, September 18, 2026: specifications and setup
  26. Official MX-9900 page: power/capacity claims, feed, hitch and current sale price
  27. MX-9900 manual Rev C, September 18, 2026: specifications and setup
  28. Wallenstein BX72S current U.S. page — engine power, current hitch categories, capacity, accessories and reference mass
  29. BX72S official support page — current operator/setup documents
  30. BX-S operator manual Z97085_En, Rev Jan-2025 — pp14,18–22,26,28,30,40
  31. PTO shaft instructions Z97844_En, Rev Aug-2024 — tractor/quick-hitch sizing
  32. Official FM25 public catalog response — active models, gallery and linked documents
  33. Wallenstein BX102S current U.S. page — engine hp range, capacity, mounting system, weight and accessories
  34. BX102S official support page — current operator and parts documents
  35. Wallenstein BX102RI current U.S. page — engine hp range, mounting, capacity, hydraulic flow and weight
  36. BX102RI official support page — operator and parts manuals by serial number
  37. BXR Series Operator’s Manual, P3 PULSE V3 (Oct 2022) — §10.1 specifications, hitching, power pack
  38. Wallenstein wood chipper lineup — engine hp ranges for R and RI models
  39. Farmry official product specifications
  40. Farmry LFS Series operator manual, Rev 1.7 — Printed pp17–18 specifications; p28 tractor stability
  41. Farmry flail mower comparison table — Net-weight comparison; may exclude PTO shaft
  42. Farmry official product specifications
  43. Farmry official product specifications
  44. TMG TFM60/68/72 manual — cover v.2022.11.29; filename 2025.01.09 — p6 power; p11 hitch adjustment; p12 specifications
  45. Official LFP47 product page: configuration, weight and price
  46. LFP Series operator manual, Rev 1.3, printed pp17–20
  47. Official U.S. TFMS50 page: operating specifications and price
  48. Official FM-54 page: Y option, displayed price, shaft and weight
  49. FM-54 manual for 2025-and-newer models, p40 specifications
  50. Official FM-62H page: hammer option, price, equipment and conflicting weights
  51. Official FM-62 page: exact hammer variant, price and equipment
  52. Currently linked EFGC standard manual, Revision 12-12-17, pp16–23
  53. Official EFGC series: fixed models and separate hydraulic-offset kits
  54. Official Betstco manual index
  55. Official Betstco FH-EF95 product page — PTO hp range, gearbox, widths, weights, blades and price
  56. Farmer-Helper FH-EF Series Manual (June 2025), p13 Machine Specs
  57. Official Betstco FH-EF standard-duty series page
  58. Official Betstco FH-EF105 product page — PTO hp range, gearbox, widths, weights, blades and price
  59. Official Betstco FH-EF125 product page — PTO hp range, gearbox, widths, weights, blades and price