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GrandStand® 48" (122 cm) 22 HP 726cc

GrandStand® 48" (122 cm) 22 HP 726cc

GrandStand® 48" (122 cm) 22 HP 726cc

Product Information

  • Model #: 72504
  • Serial #: 417378074 - 417999999
  • Product Type: Riding Products

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Drawing Title Part Number Description
Title



48 Inch Deck Assembly
48 Inch Deck Assembly
Control Handle Assembly No. 132-5157
Control Handle Assembly No. 132-5157
Control Handle Assembly No. 132-5158
Control Handle Assembly No. 132-5158
Deck Decal Assembly No. 139-8093
Deck Decal Assembly No. 139-8093
Deck Lift Assembly
Deck Lift Assembly
Deflector Assembly No. 163-4031
Deflector Assembly No. 163-4031
Electrical Assembly
Electrical Assembly
Engine Assembly
Engine Assembly
Frame Assembly
Frame Assembly
Fuel Tank Assembly
Fuel Tank Assembly
Ground Drive Assembly
Ground Drive Assembly
HOC Lever Assembly No. 161-6735
HOC Lever Assembly No. 161-6735
HOC Link Assembly No. 130-6615
HOC Link Assembly No. 130-6615
LH Transmission Assembly No. 138-5838
LH Transmission Assembly No. 138-5838
Motion Control Assembly
Motion Control Assembly
Overflow Hose Assembly
Overflow Hose Assembly
Parking Brake Assembly
Parking Brake Assembly
Platform Assembly
Platform Assembly
RH Transmission Assembly No. 138-5839
RH Transmission Assembly No. 138-5839
Spindle Assembly No. 137-9780
Spindle Assembly No. 137-9780
Wheel and Bearing Assembly
Wheel and Bearing Assembly
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Operator's Manual
Parts Catalog
Product Warranty
ACMA Declaration of Conformity
Hypr-Oil™ 500 (quart)
Hypr-Oil™ 500 (quart) (Part # 114-4713)
Hypr-oil™ 500 (quart). Toro Hypr-Oil 500 is a high-performance hydraulic fluid specifically formulated and approved by Toro engineering for use in Toro commercial zero turn mowers. It provides excellent wear and corrosion protection for hydraulic systems, helping to maintain consistent performance and extend the service life of hydraulic components. Always refer to your operator manual for the correct fluid specification and service intervals.
Hypr-Oil™ 500 (gallon)
Hypr-Oil™ 500 (gallon) (Part # 114-4714)
Toro Hypr-Oil 500 is a high-performance hydraulic fluid specifically formulated and approved by Toro engineering for use in Toro commercial zero turn and stand-on mower hydraulic systems. Maintaining the correct hydraulic fluid and changing it at the manufacturer-recommended interval is critical to protecting hydraulic pumps, wheel motors, and other hydraulic components from wear and corrosion — particularly on machines operating under commercial duty cycles. Refer to your operator manual for the correct change interval and fluid capacity for your equipment.
HYPR-OIL 500-5 GALLON (Part # 114-4715)
Oil Filter Replacement
Oil Filter Replacement (Part # 119-5852)
This genuine Toro OEM replacement oil filter removes contaminants — including dirt, metal particles, and other debris — from your engine oil as it circulates, helping to protect critical engine components from wear and extending the life of both the oil and the engine. Refer to your operator manual for recommended replacement intervals and to confirm compatibility with your Toro equipment.
Outer Air Filter Element Replacement
Outer Air Filter Element Replacement (Part # 119-5944)
This genuine Toro OEM replacement air filter is your engine's first line of defense against the dirt and debris that is thrown up during mowing. When functioning correctly, the air filter prevents particles from reaching the carburetor and entering the engine, protecting cylinders, pistons, and other internal components from accelerated wear. Refer to your operator manual for recommended replacement intervals and to confirm compatibility with your equipment.
Outer Air Filter Element Replacement
Outer Air Filter Element Replacement (Part # 119-5945)
This genuine Toro OEM replacement air filter is your engine's first line of defense against the dirt and debris that is thrown up during mowing. When functioning correctly, the air filter prevents particles from reaching the carburetor and entering the engine, protecting cylinders, pistons, and other internal components from accelerated wear. Refer to your operator manual for recommended replacement intervals and to confirm compatibility with your equipment.
Fuel Filter Replacement
Fuel Filter Replacement (Part # 120-2235)
This genuine Toro OEM replacement fuel filter prevents dust, water, and fuel contaminants from reaching the engine's carburetor or fuel injection system, protecting cylinders, pistons, and other components that would otherwise require costly repair. Refer to your operator manual for recommended replacement intervals and to confirm compatibility with your equipment.
GrandStand Wire Harness Splitter
GrandStand Wire Harness Splitter (Part # 121-5988)
This genuine Toro OEM wire harness splitter is designed for GrandStand stand-on mowers and allows multiple electrical accessories — such as light kits and other electronic attachments — to be connected simultaneously to a single power source on the mower. This eliminates the need to disconnect one accessory to connect another and simplifies wiring when running multiple electrical accessories at once. Verify your model and serial number before ordering.
Genuine OEM Part 131-6572
Premium Fuel Treatment (12 oz.) (Part # 131-6572)
Toro Premium Fuel Treatment helps ensure clean, reliable engine performance and protection. Toro Premium Fuel Treatment is designed to protect small 2-cycle and 4-cycle engines from the effects of ethanol-blended fuels, which can degrade over time and leave harmful deposits in carburetors and fuel systems. Using a fuel stabilizer with every fill-up is particularly important for equipment that sits unused for extended periods, such as mowers stored over winter.
GrandStand Speed Setting Tool
GrandStand Speed Setting Tool (Part # 132-7595)
This genuine Toro OEM speed setting tool is designed for GrandStand stand-on mowers and is used to accurately calibrate and adjust the mower's ground speed settings. Correct speed calibration ensures consistent, predictable ground speed response from the drive controls — important both for operator efficiency and for ensuring consistent mowing results across a property. Typically used during initial setup and after drive system service. Verify your model and serial number before ordering.
GrandStand Weight Kit
GrandStand Weight Kit (Part # 133-1428)
Weight Kit for Toro Grandstand models. Helps distribute weight for a smooth ride and an even cut on rough terrain. This Toro OEM weight kit helps improve traction and stability on slopes and uneven terrain by adding ballast to the front or rear of your mower. Verify your model and serial number to confirm compatibility before ordering.
Chute Gate Kit with Bag for GrandStand Mower
Chute Gate Kit with Bag for GrandStand Mower (Part # 133-1434)
Toro chute gate kit with bag for grandstand mower. This Toro OEM discharge chute kit allows the operator to direct or block the flow of clippings from the mower deck, helping to prevent debris from reaching flower beds, driveways, or bystanders. Verify your model and serial number to confirm compatibility before ordering.
Trash Container Kit
Trash Container Kit (Part # 133-1435)
This genuine Toro OEM replacement part is manufactured to the exact engineering specifications of your Toro equipment, ensuring correct fit and reliable performance. Verify your model and serial number to confirm compatibility before ordering.
Roller Stripping Kit
Roller Stripping Kit (Part # 133-1436)
The Toro Striping Kit allows you to create "ballpark" stripes and patterns in your lawn while you mow. Striping kits lay the grass down in the direction of travel. The Toro OEM striping kit creates defined light and dark stripes in your lawn by pressing grass down in the direction of travel as you mow — the contrast in light reflection produces the 'ballpark' stripe effect. The kit's downward pressure is adjustable, allowing you to vary the intensity of the stripe. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Light Kit
GrandStand Light Kit (Part # 133-1437)
Extend your mowing day with these Toro genuine high-intensity, low amperage LED light kit. This lighting kit is built in durable cast aluminum alloy housing with stainless steel mounting hardware and wiring harness and lighted rocker switch. This Toro OEM LED light kit is designed to extend your working day by providing reliable illumination during low-light mowing conditions. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Electric Accessory Port
GrandStand Electric Accessory Port (Part # 133-1438)
Toro OEM electric access port provides an electric outlet to charge small onboard devices. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Height of Cut Block Kit
GrandStand Height of Cut Block Kit (Part # 133-1439)
This genuine Toro OEM height-of-cut block kit is designed for GrandStand stand-on mowers and provides a reference gauge system for setting and verifying consistent cutting height across all blade positions on the deck. Inconsistent deck height across the blade span results in an uneven cut — this kit ensures the deck is correctly levelled and the cutting height is accurate and repeatable after any deck height adjustment. Verify your model and serial number before ordering.
GrandStand Anti-scalp & Wear Bar Kit
GrandStand Anti-scalp & Wear Bar Kit (Part # 133-1440)
Toro OEM anti-scalp deck wheels and wear bar. These wheels help prevent the deck from coming in contact with the ground when passing over a high spot, thus preventing the blade from slicing off or "scalping" large clumps of grass. Toro OEM anti-scalp deck wheels are designed to prevent the mower deck from making contact with the ground when passing over raised spots or uneven terrain, protecting the blades from impact damage and preventing the lawn from being gouged or stripped. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Trimmer Mount Kit
GrandStand Trimmer Mount Kit (Part # 133-1441)
This genuine Toro OEM trimmer mount kit is designed for GrandStand stand-on mowers and allows the operator to mount a string trimmer directly on the mower — enabling simultaneous mowing and trimming in a single pass. This is particularly valuable for commercial operators looking to improve crew efficiency and reduce the number of passes required on a property. A popular at-purchase accessory for GrandStand owners doing production-oriented mowing work. Verify your model and serial number before ordering.
GrandStand Hydraulic Oil Change Kit
GrandStand Hydraulic Oil Change Kit (Part # 133-1457)
GrandStand Hydraulic Oil Change Kit contains 2 drain bolts, sealing washer, filter cap, oil cap O ring and filter. Toro Hypr-Oil 500 is a high-performance hydraulic fluid specifically formulated and approved by Toro engineering for use in Toro commercial zero turn mowers. It provides excellent wear and corrosion protection for hydraulic systems, helping to maintain consistent performance and extend the service life of hydraulic components. Always refer to your operator manual for the correct fluid specification and service intervals.
GrandStand Strobe Light Flasher Kit.
GrandStand Strobe Light Flasher Kit. (Part # 133-1495)
This genuine Toro OEM strobe light flasher kit is designed for Toro GrandStand stand-on mowers and provides a side-mounted strobe light that improves operator visibility in high-traffic, shared-use, or public mowing environments. It is a safety-focused accessory particularly valued by commercial landscape operators working on sports fields, school grounds, and other areas where pedestrian and vehicle traffic is a concern. Verify your model and serial number before ordering.
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Toro genuine 5-Gallon bucket. (Part # 133-2533)
This genuine Toro OEM replacement part is manufactured to the exact engineering specifications of your Toro equipment, ensuring correct fit and reliable performance. Verify your model and serial number to confirm compatibility before ordering.
Hydraulic Cap Lock Kit
Hydraulic Cap Lock Kit (Part # 136-5420)
Hydraulic Cap Lock Kit. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Series Bucket Mount Kit
GrandStand Series Bucket Mount Kit (Part # 136-5681)
Toro OEM bucket mount kit. Saves you time, money, and hassle when you’re in the seat trying to get the day's cutting done. Verify your model and serial number to confirm compatibility before ordering.
GrandStand Bagger Enhancement Kit
GrandStand Bagger Enhancement Kit (Part # 139-1529)
This genuine Toro OEM bagging enhancement kit is designed for Toro GrandStand stand-on mowers and improves clipping collection performance in demanding conditions — including heavy or wet grass, thick turf, and autumn leaf bagging. Whether purchased at the same time as a new machine or added as a seasonal upgrade, this kit restores bagger efficiency when standard bagging performance falls short. Verify your model and serial number before ordering.
48 inch Recycler Kit (GrandStand)
48 inch Recycler Kit (GrandStand) (Part # 139-6650)
This genuine Toro OEM 48-inch Recycler kit is designed for Toro GrandStand stand-on mowers and converts the deck to full Recycler mulching operation. Once installed, the patented Recycler system cuts clippings 6 to 8 times and returns them to the lawn as fine, nutrient-rich natural fertilizer — eliminating the need to bag or rake in most conditions. One of the most popular purchase-stage upgrades for new GrandStand owners who want to maximize the value of their machine from day one. Verify your model and serial number before ordering.
18
MICHELIN® X® TWEEL® Turf Airless Radial Tires (18") (Part # 139-7890)
The MICHELIN® X® TWEEL® Turf Airless Radial Tires are the next “revolution” in commercial mowing has arrived. The MICHELIN X TWEEL Turf Airless Radial Tire has all the qualities you would want in a pneumatic tire but it never needs air. The MICHELIN X TWEEL Turf airless radial tire is a single-unit assembly that replaces a conventional tire and wheel, eliminating the need for air pressure entirely — which means no flats, no downtime, and no patch kits. The wear life of a TWEEL tire is significantly longer than a comparable pneumatic tire, reducing the frequency of replacement and total cost of ownership over time. Verify your model and serial number to confirm the correct size before ordering.
16.5 Inch Hi-Flow Blade
16.5 Inch Hi-Flow Blade (Part # 140-1243)
This Toro OEM 16.5-inch Hi-Flow replacement mower blade is designed to produce high lift, cutting grass cleanly and propelling clippings upward and out through the discharge chute. Hi-Flow blades — also referred to as basic, standard, or 2-in-1 blades — are the preferred choice when using a grass catcher or bagger, as the increased airflow drives clippings efficiently into the collection bag. This blade is compatible with multiple Toro riding lawn mowers models — always verify your model and serial number before ordering to confirm the correct fit.
Pneumatic Caster Wheel Kit
Pneumatic Caster Wheel Kit (Part # 140-4311)
This genuine Toro OEM pneumatic caster wheel kit replaces worn or damaged front caster wheels on compatible Toro mowers with a pneumatic tire assembly that provides improved ride quality and maneuverability compared to a flat tire or solid caster. Pneumatic casters absorb small bumps and surface irregularities that solid casters transmit directly to the deck, resulting in a more consistent cut on uneven ground. A wear-and-tear replacement that also improves performance. Verify your model and serial number before ordering.
16.5 Inch Medium Flow Blade
16.5 Inch Medium Flow Blade (Part # 140-4860)
This Toro OEM 16.5-inch Mid Flow replacement mower blade is engineered to provide a balance between the high suction of Hi-Flow blades and the minimal airflow of Low Flow blades. Mid Flow blades have a slight upward angle on the cutting edges, producing moderate lift while requiring less horsepower than Hi-Flow blades — making them a versatile option for varied terrain and grass conditions. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
16.5 Inch Low Flow Blade
16.5 Inch Low Flow Blade (Part # 140-4861)
This Toro OEM 16.5-inch Low Flow replacement mower blade features a slightly curved tip design that keeps airflow to a minimum during operation. Low Flow blades are the right choice for mowing in sandy, dusty, or dry conditions where high suction would stir up excessive debris — they also cause less strain on the engine than Hi-Flow blades, making them a practical option when horsepower is a consideration. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
16.5 Inch Atomic Blade
16.5 Inch Atomic Blade (Part # 140-4862)
Toro 16.5 Inch OEM Atomic blade. The Toro Atomic blade is commonly referenced as a “Gator Style” or “Gator Blade”. Provides the best quality of cut while mulching. This Toro blade has multiple applications. Be sure to verify model and serial number to ensure the correct part.
16.5 Inch Recycler Blade
16.5 Inch Recycler Blade (Part # 140-4863)
This Toro OEM 16.5-inch Recycler replacement mower blade is built to work within Toro's Recycler mulching system, featuring uniquely shaped 'accelerator' wings that act as a fan to keep clippings circulating beneath the deck. As clippings are forced back into the cutting zone, they are re-cut multiple times into fine pieces that fall back into the lawn and break down into natural fertilizer — feeding the grass and reducing the need to bag or rake. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
Hi-Flow 16.5 Inch Blade Pack (6)
Hi-Flow 16.5 Inch Blade Pack (6) (Part # 140-4887)
Toro 16.5 Inch OEM Hi-Flow blade pack. (6) Hi-Flow blades. This sharp replacement Hi-Flow lawn mower blade provides a crisp, clean cut time after time. You can count on the quality and reliability of this Toro replacement Hi-Flow lawn mower blade. This Toro blade has multiple applications. Be sure to verify model and serial number to ensure the correct part
Mid Flow 16.5 Inch Blade Pack (6)
Mid Flow 16.5 Inch Blade Pack (6) (Part # 140-4888)
This Toro OEM 16.5-inch Mid Flow replacement mower blade — sold as a pack of 6 is engineered to provide a balance between the high suction of Hi-Flow blades and the minimal airflow of Low Flow blades. Mid Flow blades have a slight upward angle on the cutting edges, producing moderate lift while requiring less horsepower than Hi-Flow blades — making them a versatile option for varied terrain and grass conditions. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
Low Flow 16.5 Inch Blade Pack (6)
Low Flow 16.5 Inch Blade Pack (6) (Part # 140-4889)
This Toro OEM 16.5-inch Low Flow replacement mower blade — sold as a pack of 6 features a slightly curved tip design that keeps airflow to a minimum during operation. Low Flow blades are the right choice for mowing in sandy, dusty, or dry conditions where high suction would stir up excessive debris — they also cause less strain on the engine than Hi-Flow blades, making them a practical option when horsepower is a consideration. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
Atomic 16.5 Inch Blade Pack (6)
Atomic 16.5 Inch Blade Pack (6) (Part # 140-4890)
This Toro OEM 16.5-inch Atomic replacement blade — commonly known as a Gator-style blade — features a serrated cutting edge with raised teeth that shred grass clippings into much finer pieces than a standard mulching blade. The serrated design re-cuts clippings multiple times on every pass, delivering the highest mulching quality available and a consistently crisp, clean cut even in dense or damp grass. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
Recycler 16.5 Inch Blade Pack (6)
Recycler 16.5 Inch Blade Pack (6) (Part # 140-4891)
This Toro OEM 16.5-inch Recycler replacement mower blade — sold as a pack of 6 is built to work within Toro's Recycler mulching system, featuring uniquely shaped 'accelerator' wings that act as a fan to keep clippings circulating beneath the deck. As clippings are forced back into the cutting zone, they are re-cut multiple times into fine pieces that fall back into the lawn and break down into natural fertilizer — feeding the grass and reducing the need to bag or rake. Compatible with multiple Toro riding lawn mowers models — verify your model and serial number before ordering.
2 TRANSMISSION FILTER KIT (Part # 144-3842)
BLADE-16.50 HIGH FLOW (Part # 147-6250)
6 PACK-BLADE, 16.50 HIGH FLOW (Part # 147-6254)
KIT-PNEUMATIC CASTER TIRE (Part # 161-3470)
KIT-SEMI PNEU CASTER TIRE (Part # 161-3471)
3 Bushell Soft Collection Bag for GrandStand Mowers
3 Bushell Soft Collection Bag for GrandStand Mowers (Part # 30104)
3 Bushell Soft Collection Bag for GrandStand Mowers. To best protect your investment and maintain optimal performance of your equipment, count on Toro genuine parts and accessories.
10W30 4-Cycle Engine Oil - 32 oz. Bottle
10W30 4-Cycle Engine Oil - 32 oz. Bottle (Part # 38280)
The Toro 38280 Premium 4-Cycle Lawn Mower Engine Oil 10W-30 is specially formulated to meet specific 4-cycle engine manufacturer requirements calling for 10W-30. This lawn mower engine oil provides the ultimate protection for all 4-cycle OPE engines. The lawn mower engine oil is developed with Toro engineering to meet the standards for all air-cooled, liquid-cooled and diesel engines. To maximize the performance of your Toro lawn mower, we highly recommend using this Toro lawn mower engine oil, which has been specifically formulated for best results. The lawn mower engine oil provides extreme performance in all temperatures, enhancing the life of your lawn mower's engine.
SAE 30 4-Cycle Lawn Mower Engine Oil 32 oz
SAE 30 4-Cycle Lawn Mower Engine Oil 32 oz (Part # 38903)
Toro SAE 30 4-cycle engine oil passed the strictest requirements in thousands of hours of testing in hundreds of engines before you filled your lawn mower. This oil meets or exceeds performance requirements of all OEM engines (Toro, Briggs & Stratton, KOLHER, Honda, and Tecumseh). The use of Toro SAE 30 4-cycle lawn mower oil minimizes molecular shearing for extended life in hot-air-cooled applications vs multi-grades (i.e., 10W-30).
G-STD TWIN BAGGER KIT (Part # 78524)
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GrandStand E-Z Vac Blower & Drive Kit for 48" Deck (Part # 78525)
The patent-pending side-mounted Soft Twin Bagger has a large 10 cu. ft. (8 bushel) (0.28 m3) capacity and the vertically-mounted blower allows for excellent maneuverability in tight spaces and maximum visibility.

Easily Removeable: Bagger frame conveniently removes with three pins and one bolt, while bagger removes simply with one pin and latch.
Compact: The side-mounted bagger offers a smaller width dimension
Side-Mounted: Only stand-on machine with a side bagger to provide maximum visibility and excellent maneuverability
Belt-Driven: The blower/bagger system engages automatically with no additional engine required.
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SPARK PLUG (Part # 92-2153)
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Spark Arrestor (Part # 98-9099)
Toro OEM spark arrestor prevents carbon build ups from being ejected from the engine and igniting a fire. Verify your model and serial number to confirm compatibility before ordering.

Model #

72504

Serial #

417378074 - 417999999

Product Name

GrandStand® 48" (122 cm) 22 HP 726cc

Product Brand

Toro

Product Type

Riding Products

Product Series

Professional Grade Stand-on Mowers

Chassis Type

Stand On

Swath

48 inch / 122 cm

Discharge

Side

Engine/Motor Manufacturer

Kawasaki

Engine/Motor Size

22 hp

Engine/Motor Type

4 Cycle

Engine Starter

Electric

Transmission Type

Hydrostatic

Traction Type

Rear WD

Engine: Battery

12V 300CCA

Engine: Engine Speed

3600±100 RPM

Engine: Spark Plug

NGK BPR4ES

Engine: Spark Plug Gap

.030"/ .76mm

Engine: Ignition Coil Air Gap

.008-.016" / .2-.4mm

Engine: Engine Oil Type

67 oz. (2.1 Liter) SAE 10W-30 or 10W-40

Drive System: Ground Speed

0-10 mph / 0-16kph

Chassis: Height of Cut Range

1.5" - 5.5" (38-140mm)

Chassis: Tire Pressure

12-14psi (83-97kPa)

Drive System: Gearbox Lubricant

HYPR-OIL 500 4.7 L (159 fl. oz.)