Best Lawn Mower Sickle Bars and Hay-Cutting Options
The best lawn mower sickle bar depends on whether you need a replacement part, a complete haybine assembly, or a powered cutter for brush and field work. The Gribaldi guard bar is best for a 7-foot-cut mower, while the Troy-Bilt kit is aimed at select Trailblazer models. For tractor-mounted cutting, the hydraulic boom reaches hedges and banks; the MechMaxx drum mower is a different type of hay-cutting alternative.
| Product | Best Suited For | Type |
|---|---|---|
| Gribaldi Model 394 Guard Bar | 7-foot-cut mower repair | Guard bar |
| Hydraulic Boom FH-BRM150 | Hedges, ditches, and banks | Boom sickle mower |
| Troy-Bilt Trailblazer Sickle Bar Kit | Select Trailblazer repairs | Replacement bar kit |
| 7-foot Haybine Assembly | Compatible Case IH and Hesston equipment | Complete sickle assembly |
| MechMaxx DM53 Drum Mower | Tractor hay and forage cutting | Drum mower alternative |
Gribaldi Model 394 Complete Guard Bar

This complete guard bar is listed for a 7-foot-cut mower and identified as a Gribaldi sickle bar mower guard bar. It is a repair component rather than a complete mower, so it is most relevant when an existing machine needs a replacement guard bar.
Best for: Owners maintaining a mower with a 7-foot cut who have confirmed that this Model 394 part matches their machine. It was selected because its stated application directly relates to a lawn mower sickle bar system.
Check before buying: The listing provides limited fitment detail beyond the 7-foot cut and model information. Confirm the mower’s required part and dimensions before ordering.
FH-BRM150 Hydraulic Boom Sickle Mower

This hydraulic boom has a 5-foot sickle brush mower. Its listed cutting applications include trimming a flat hedge top up to 11 feet tall, cutting a vertical side and reaching up to 6 feet out, and working ditches and banks down to a 45-degree angle.
Best for: Buyers who need reach for hedge sides, ditches, or sloped banks rather than a simple replacement cutter bar. The boom configuration and stated reach make it a specialized choice for cutting in hard-to-access areas.
Check before buying: The supplied product details do not specify equipment requirements or mounting compatibility. Confirm those details for the intended machine and job before purchase.
Troy-Bilt Trailblazer Sickle Mower Bar Kit

This metal replacement kit is listed for Troy-Bilt Trailblazer models associated with part numbers GW-P406732, GW-P406657, and GW-P406658. It includes 8 knives and 16 rivets. The listing also names the corresponding P406732, P406657, and P406658 part numbers.
Best for: Owners repairing a listed Trailblazer mower who need a bar kit with knives and rivets. It was selected for its specific model and replacement-part references, which help buyers compare it with an existing component.
Check before buying: The stated compatibility is limited to specified models and part numbers. Avoid assuming that it fits other Troy-Bilt machines without confirming the exact model and replacement number.
7-Foot Case IH and Hesston Haybine Assembly

This complete 7-foot sickle assembly is listed as compatible with Case IH International 8320 and Hesston 1110 equipment. It has 27 chrome, 11-gauge top-serrated sections assembled with bolts. The listed assembly head number is A-6821078, the section number is A-700705300, and the OEM numbers are 700111432 and 700111255.
Best for: Buyers replacing a complete sickle assembly on the named haybine models. Its dimensions, section count, and part numbers provide useful details for matching an existing assembly.
Check before buying: Confirm the machine model and relevant head, section, or OEM number. The 7-foot description alone does not establish fit for every mower with the same cutting width.
MechMaxx DM53 Drum Mower

The DM53 is a 53-inch, 3-point drum mower, not a sickle bar mower. It is listed for tractors in the 25–40 horsepower range and uses a dual-drum design with steel blades. Its stated uses include mowing hay fields, pastures, and forage crops, with windrows formed for collection.
Best for: Small farms, ranches, and acreage owners who want a tractor-mounted hay-cutting option and do not require a sickle bar mechanism. It is included as a comparison because it serves a related field-cutting purpose.
Check before buying: Choose another product if you specifically need a sickle bar replacement or sickle-style cutter. Verify that the tractor falls within the listed horsepower range.
Buying Guide: How to Choose a Lawn Mower Sickle Bar
Do you need a complete mower or a replacement part?
Start by identifying whether the machine needs a guard bar, a sickle bar kit, or a complete assembly. The Gribaldi product is a guard bar; the Trailblazer item is a kit with knives and rivets; and the 7-foot haybine product is a complete assembly. These parts serve different repair needs and should not be treated as interchangeable.
How should you check compatibility?
Use the mower’s make and model, existing part number, and the dimensions of the current component. Compare those details with the listing’s stated fitment. Part numbers are particularly useful for the Trailblazer kit and haybine assembly. If key specifications are missing, confirm fitment before ordering instead of relying only on cutting width.
When is a boom mower a better choice?
A boom mower is suited to reaching hedge sides, ditches, and banks, based on the FH-BRM150’s listed applications. It is a specialized option, not simply a replacement bar for a walk-behind or standard field mower. Check mounting and equipment requirements for the intended setup.
Should you consider a drum mower?
A drum mower can be relevant when the goal is cutting hay or forage with a tractor. The DM53 offers a 53-inch cutting width and is listed for 25–40 horsepower tractors. It is not a sickle bar mower, so it is not the right choice when replacing a sickle mechanism.
Frequently Asked Questions
What is a sickle bar mower used for?
A sickle bar mower uses a reciprocating cutting assembly to cut vegetation. The products here cover replacement components, haybine assemblies, and a boom-mounted sickle brush mower.
Can I choose a replacement bar by cutting width alone?
No. Cutting width is useful, but model fit and part numbers are also important. Confirm the required component and machine specifications before purchasing.
Is the MechMaxx DM53 a sickle bar mower?
No. It is a dual-drum mower. It may suit tractor hay and forage cutting, but it is an alternative rather than a sickle bar replacement.
What does the Trailblazer kit include?
The listing describes a metal bar kit with 8 knives and 16 rivets and specifies compatibility with selected Trailblazer models and part numbers.
Which option is intended for cutting banks and ditches?
The FH-BRM150 hydraulic boom sickle mower is listed for ditches and banks down to a 45-degree angle, as well as hedge trimming applications.