Billy Goat PR550 Series 20" Power Rake, Honda and Vanguard Engine, Cast Iron Pillow Block Bearings

The Billy Goat PR550 Series 20" Power Rake is a heavy-duty lawn dethatcher designed for professional landscapers, lawn-care contractors, equipment rental businesses, and property maintenance crews. Available with a Honda or Vanguard engine, it features a 20 in (50.8 cm) flail reel that removes matted thatch from established turf. Its down-sweep reel rotation helps propel the machine forward, while its 10-gauge steel engine base, heavy-duty wheels, steel guards, and cast iron pillow block bearings help reduce vibration and improve operator comfort during demanding lawn-maintenance work.

KEY FEATURES

• HEAVY-DUTY WHEELS: The heavy-duty wheels are designed to withstand frequent use on residential and commercial properties. Their substantial construction also contributes to the machine's stability and helps absorb vibration during dethatching.
• PREMIUM STEEL PULLEYS, EASY-TO-ADJUST IDLER & EASY-TO-CHANGE BELT: Durable steel pulleys support dependable power transmission to the flail reel during demanding applications. The accessible belt and adjustable idler simplify routine maintenance, helping reduce equipment downtime between jobs.
• PR550 NO-THREAD, NO-BOLT FOLDABLE HANDLES: The folding handle design allows operators to reduce the machine's storage footprint without removing bolts or threaded fasteners. This makes transportation and storage more convenient for contractors and rental businesses.
• PREMIUM INSIDE-MOUNTED ENGAGEMENT BALE: The conveniently positioned engagement bale gives operators direct control over the flail reel. Its inside-mounted design supports comfortable operation when engaging or disengaging the dethatching mechanism.
• PR550 INFINITE HEAVY-DUTY DEPTH ADJUSTMENT: The working depth is continuously adjustable between 0.125 in (0.3 cm) and 0.5 in (1.3 cm), allowing operators to select an appropriate setting for different turf conditions. Precise adjustment helps achieve effective thatch removal while maintaining control over the intensity of treatment.
• PR FLAIL REEL: The standard 20 in (50.8 cm) flail reel removes matted thatch using a down-sweep rotation that helps propel the power rake forward. This reel-assisted movement reduces the effort required to push the machine and helps operators maintain productivity during extended jobs.
• CAST IRON PILLOW BLOCK BEARINGS WITH GREASE ZERKS: Construction-grade cast iron pillow block bearings support the flail reel during demanding operation. Integrated grease zerks make routine lubrication more convenient and help operators maintain the reel assembly.
• RUGGED 10-GAUGE STEEL ENGINE BASE: The heavy-duty engine base, steel guards, and substantial machine components help absorb vibration before it reaches the handle. This construction improves operator comfort and provides the durability required for regular commercial use.
• 20 IN (50.8 CM) DETHATCHING WIDTH: The flail reel removes thatch in 20 in (50.8 cm) passes, providing efficient coverage while remaining maneuverable around landscaping features. This working width is suitable for residential lawns, commercial properties, and routine professional dethatching.
• UP TO 13,200 SQ FT/HR (1,226 M²/HR) PRODUCTIVITY: Both engine configurations are rated for productivity of up to 13,200 sq ft/hr (1,226 m²/hr). The combination of a wide flail reel and reel-assisted forward movement helps crews complete seasonal lawn-maintenance jobs efficiently.
• HONDA OR VANGUARD ENGINE OPTIONS: Choose between the 162 cc (9.9 cu in) Honda-powered PR550H and the 169 cc (10.3 cu in) Vanguard-powered PR551V. Both models provide the same dethatching width, depth-adjustment range, and rated productivity.

APPLICATIONS / USE CASES

• RESIDENTIAL LAWN DETHATCHING: The PR550 Series removes accumulated thatch from established lawns to help improve access to air, water, and nutrients. Its 20 in (50.8 cm) working width provides efficient coverage while maintaining maneuverability on residential properties.
• PROFESSIONAL LANDSCAPING SERVICES: Lawn-care contractors can use the power rake for routine dethatching and seasonal turf-maintenance programs. Its rugged construction and reel-assisted forward movement help operators manage demanding workloads with less physical effort.
• SPRING AND FALL TURF MAINTENANCE: The adjustable working depth allows operators to tailor dethatching to different seasonal turf conditions. Removing excessive thatch helps prepare lawns for fertilization, watering, and other maintenance treatments.
• COMMERCIAL GROUNDS MAINTENANCE: The heavy-duty frame, steel guards, and serviceable bearings support regular use on commercial lawns and institutional properties. Its productivity rating helps groundskeeping crews cover substantial turf areas efficiently.
• OVERSEEDING PREPARATION: Removing matted thatch helps expose the underlying soil before new grass seed is applied. Compatible optional slicing reels and seeder box kits provide additional configurations for lawn-renovation projects.
• THATCH REMOVAL ON COMPACT PROPERTIES: The machine's working width and folding handles make it practical for properties with limited access or storage space. Continuous depth adjustment gives operators control when treating different lawn conditions.
• EQUIPMENT RENTAL BUSINESSES: The durable construction, accessible controls, and folding handles make the PR550 Series suitable for rental fleets. Replaceable reel components and greaseable bearings also simplify routine maintenance between rentals.

WHAT'S INCLUDED

• One Billy Goat PR550 Series 20 in (50.8 cm) Power Rake in the selected engine configuration
• Honda or Vanguard engine, depending on the selected model
• Pull / recoil starting system
• Standard 20 in (50.8 cm) flail reel
• Cast iron pillow block bearings with grease zerks
• Premium steel pulleys and adjustable belt idler
• Premium inside-mounted engagement bale
• Infinite heavy-duty depth adjustment
• No-thread, no-bolt folding handles
• Heavy-duty wheels
• Steel guards and 10-gauge steel engine base

Optional replacement components, alternative reel assemblies, and seeder box kits are sold separately unless otherwise specified.

MACHINE OPTIONS

• PR550H – HONDA ENGINE: Powered by a 162 cc (9.9 cu in) Honda engine with pull start, the PR550H provides a 20 in (50.8 cm) flail working width and continuously adjustable dethatching depth. Its 158 lb (71.7 kg) weight and reel-assisted forward movement make it suitable for professional lawn-care and rental applications.
• PR551V – VANGUARD ENGINE: Powered by a 169 cc (10.3 cu in) Vanguard engine with pull start, the PR551V offers the same working width, depth adjustment, and rated productivity as the Honda-powered model. At 149 lb (67.6 kg), it provides an alternative engine configuration for residential and commercial dethatching work.

OPTIONAL ACCESSORIES

• FLAIL SHAFT KIT: This replacement kit provides shaft components for servicing the flail reel. It helps operators maintain the reel assembly and address worn or damaged shaft components without replacing the complete power rake.
• FLAIL BLADE KIT – SET OF 30: This kit includes 30 replacement flail blades for maintaining the machine's dethatching performance. Replacing worn blades helps restore effective thatch removal and supports consistent operation across the working width.
• SLICING BLADE KIT – SET OF 20: This kit provides 20 slicing blades for a compatible slicing reel configuration. The blades support turf slicing and seedbed preparation when the power rake is configured for lawn renovation.
• SLICING BLADE KIT – SET OF 20, BOLT-ON STYLE BLADE: This kit contains 20 bolt-on slicing blades for compatible reel assemblies. The bolt-on design provides an alternative replacement configuration for maintaining the slicing system; confirm reel compatibility before ordering.
• SPRING TINE REPLACEMENT KIT: This kit provides replacement components for a compatible spring-tine reel. It helps operators maintain spring-tine performance when servicing a machine equipped with the optional reel configuration.
• 9 IN (22.9 CM) REEL FLAIL ASSEMBLY: This optional flail reel assembly provides a narrower reel configuration for compatible applications. Confirm its intended installation and compatibility with the selected PR550 Series model before ordering.
• SPRING TINE REEL ASSEMBLY: This optional assembly provides a spring-tine alternative to the standard flail reel for compatible turf-maintenance applications. It allows operators to select a different dethatching approach according to lawn conditions and treatment requirements.
• REEL SLICING ASSEMBLY – REPLACES 350113: This optional slicing reel assembly is identified as the replacement for part number 350113. It provides an alternative reel configuration for slicing turf during lawn renovation and seedbed preparation.
• FLAIL REEL ASSEMBLY – BEARINGS NOT INCLUDED: This replacement flail reel assembly allows operators to service or replace the machine's flail reel. Bearings are not included and must be reused or obtained separately as required.
• SEEDER BOX KIT, PLASTIC: This optional plastic seeder box kit provides a seed-distribution accessory for compatible lawn-renovation configurations. It allows operators to expand the machine's capabilities when preparing turf and applying grass seed.
• SLICING REEL ASSEMBLY – BEARINGS NOT INCLUDED: This optional slicing reel assembly provides a complete alternative reel configuration for compatible turf-slicing applications. Bearings are not included and must be sourced separately or reused where appropriate.
• SEEDER BOX KIT, AUTO DROP: This optional seeder box kit provides an automatic seed-drop configuration for compatible applications. It is intended to coordinate seed distribution with machine operation, helping reduce unnecessary seed release during lawn renovation.

TECHNICAL SPECIFICATIONS – PR550H (HONDA ENGINE)

• MANUFACTURER: Billy Goat
• PRODUCT SERIES: PR550
• MODEL: PR550H
• PRODUCT TYPE: Walk-behind power rake / dethatcher
• ENGINE BRAND: Honda
• ENGINE DISPLACEMENT: 9.9 cu in (162 cc)
• STARTER TYPE: Pull / recoil
• DRIVE: Push, with reel-assisted forward movement during operation
• DEPTH ADJUSTMENT: Infinite between 0.125 in (0.3 cm) and 0.5 in (1.3 cm)
• STANDARD REEL: Down-sweep flail reel
• BLADE WIDTH: 20 in (50.8 cm)
• MAXIMUM PRODUCTIVITY: 13,200 sq ft/hr (1,226 m²/hr)
• REEL BEARINGS: Cast iron pillow block bearings with grease zerks
• POWER TRANSMISSION: Steel pulleys with adjustable idler and serviceable belt
• ENGAGEMENT CONTROL: Premium inside-mounted bale
• ENGINE BASE: 10-gauge steel
• HANDLE: No-thread, no-bolt folding design
• WHEELS: Heavy-duty
• WEIGHT: 158 lb (71.7 kg)
• LENGTH: 45.5 in (115.6 cm)
• WIDTH: 26.5 in (67.3 cm)

TECHNICAL SPECIFICATIONS – PR551V (VANGUARD ENGINE)

• MANUFACTURER: Billy Goat
• PRODUCT SERIES: PR550
• MODEL: PR551V
• PRODUCT TYPE: Walk-behind power rake / dethatcher
• ENGINE BRAND: Vanguard
• ENGINE DISPLACEMENT: 10.3 cu in (169 cc)
• STARTER TYPE: Pull / recoil
• DRIVE: Push, with reel-assisted forward movement during operation
• DEPTH ADJUSTMENT: Infinite between 0.125 in (0.3 cm) and 0.5 in (1.3 cm)
• STANDARD REEL: Down-sweep flail reel
• BLADE WIDTH: 20 in (50.8 cm)
• MAXIMUM PRODUCTIVITY: 13,200 sq ft/hr (1,226 m²/hr)
• REEL BEARINGS: Cast iron pillow block bearings with grease zerks
• POWER TRANSMISSION: Steel pulleys with adjustable idler and serviceable belt
• ENGAGEMENT CONTROL: Premium inside-mounted bale
• ENGINE BASE: 10-gauge steel
• HANDLE: No-thread, no-bolt folding design
• WHEELS: Heavy-duty
• WEIGHT: 149 lb (67.6 kg)
• LENGTH: 45.5 in (115.6 cm)
• WIDTH: 26.5 in (67.3 cm)

FREQUENTLY ASKED QUESTIONS (FAQ)

1. What is the difference between the Billy Goat PR550H and PR551V?

The PR550H has a 162 cc (9.9 cu in) Honda engine and weighs 158 lb (71.7 kg), while the PR551V has a 169 cc (10.3 cu in) Vanguard engine and weighs 149 lb (67.6 kg). Both models have a 20 in (50.8 cm) flail reel, the same depth-adjustment range, and the same rated productivity.

2. Is the PR550 Series self-propelled?

The machine is classified as a push-operated power rake, but the down-sweep rotation of its flail reel helps pull it forward while dethatching. This reel-assisted movement reduces the effort required to push the machine during operation.

3. How deep can the PR550 Series dethatch?

The working depth is continuously adjustable between 0.125 in (0.3 cm) and 0.5 in (1.3 cm). Operators can select the appropriate setting according to lawn conditions and the amount of thatch removal required.

4. What makes the PR550 Series suitable for demanding commercial use?

The machine features a 10-gauge steel engine base, steel guards, heavy-duty wheels, steel pulleys, and cast iron pillow block bearings with grease zerks. These components support durability, routine maintenance, and reduced vibration during regular operation.

5. Can the PR550 Series be equipped for slicing or overseeding?

Compatible slicing blade kits, slicing reel assemblies, and seeder box kits are available as optional accessories. The appropriate components depend on the selected machine and reel configuration, so compatibility should be confirmed before ordering.