PROLINE™ 54 in. (137 cm) Mid-Size Mower
Product Information
- Model #: 44427
- Serial #: 410300000 - 412999999
- Product Type: Walk Behind Mowers
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Assembly Drawings
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Operator's Manual
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Parts Catalog
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Product Warranty
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Quick Start Guide
Hypr-Oil™ 500 (quart) (Part # 114-4713)
High Performance Hydro Oil
Hypr-Oil™ 500 (gallon) (Part # 114-4714)
High Performance Hydro Oil
Hypr-Oil™ 500 Hydraulic Oil (5 gallon) (Part # 114-4715)
Maximize commercial mower performance with Hypr-Oil™ 500. Tested and approved by Toro Engineering.
Premium Fuel Treatment (12 oz.) (Part # 131-6572)
Toro Premium Fuel Treatment helps ensure clean, reliable engine performance and protection. Good for your lawnmowers, snow blowers, weed whackers, leaf blowers and other small engine power equipment. Using Toro Fuel Treatment with every fill up provides protection for two and four cycle small engines.
GrandStand Electric Accessory Port (Part # 133-1438)
Toro OEM electric access port provides an electric outlet to charge small onboard devices. For peace of mind, insist on Toro genuine parts.
Weight Kit (Part # 138-6866)
Genuine OEM Part
Please contact your local dealer
18.75 Inch Mulching Blade (Part # 138-8885-03)
Toro 18.75 Inch OEM mulching blade. Toro mulching blades feature more curves and an increased cutting edge. The curved surface and increased cutting edge allows the blade to cut the grass and bring it into the deck where it is cut several more times before falling back onto the lawn in much smaller pieces. . This Toro blade has multiple applications. Be sure to verify model and serial number to ensure the correct part.
18.75 Inch Hi-Flow Blade (Part # 138-8889-03)
This Toro OEM 18.75-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.
18.75 Inch Hi-Flow Blade (Part # 138-8892-03)
Toro 18.75 Inch OEM Hi Flow blade. Hi-Flow are also known as basic blades, regular blades, or 2-in-1 blades, Hi-Flow mower blades are the go-to blades for mowers with a bagger. The blades are designed to cut the grass and Flow the clippings, propelling them up and out of the discharge chute. This Toro blade has multiple applications. Be sure to verify model and serial number to ensure the correct part.
Height of Cut (HOC) Brackets Kit (Part # 139-4063)
Genuine OEM Part
Wide Area Mower Light Kit (Part # 139-5595)
Genuine OEM Part
Soft Side Bagger (Part # 139-7860)
This genuine Toro OEM soft-side bagger is designed to collect grass clippings directly from your Toro mower deck, keeping the lawn clear and eliminating the need to rake after mowing. Soft-side baggers are lighter and easier to handle than hard-sided alternatives and are ideal for homeowners who prefer a bagging setup over mulching. One of the most frequently purchased accessories at the time of a new mower purchase. Verify your model and serial number before ordering.
54 inch Recycler Kit (Part # 140-1915)
By adding the Toro Recycler system to your Toro 54-inch mower, you create your own natural fertilizer. This patented system cuts grass clippings 6-8 times, turning them into a fine, nutrient-rich mulch to feed your lawn all season. The secret lies in the unique 'kickers' that direct clippings back into the blades to be re-cut before being released into your lawn to promote its health and vitality.
Rubber Deflector Kit (Part # 140-4300)
Genuine OEM Part
Titan Leaf Bagging Enhancement Kit (Part # 140-5122)
This bagging enhancement kit can be used with 50 inch Toro Titan riding mowers. It will enhance bagging performance in extreme conditions such as heavy, wet grass or autumn leaf bagging. Refer to the operator manual for installation and use.
Recycler 18.75 Inch Blade Pack (6) (Part # 140-7731)
This Toro OEM 18.75-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.
Hi-Flow 18.75 Inch Blade Pack (6) (Part # 140-7735)
This Toro OEM 18.75-inch Hi-Flow replacement mower blade — sold as a pack of 6 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.
Hi-Flow 18.75 Inch Blade Pack (6) (Part # 140-7739)
This Toro OEM 18.75-inch Hi-Flow replacement mower blade — sold as a pack of 6 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.
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 (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).
TWO-WHEEL SULKY, PROLINE MIDSIZE (Part # 44401)
Spark Arrestor (Part # 98-9099)
Toro OEM spark arrestor prevents carbon build ups from being ejected from the engine and igniting a fire.
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Model #
44427 -
Serial #
410300000 - 412999999 -
Product Name
PROLINE™ 54 in. (137 cm) Mid-Size Mower -
Product Brand
Toro -
Product Type
Walk Behind Mowers -
Product Series
Mid-Size ProLine Mower -
Chassis Type
Walk Behind -
Swath
54 inch -
Discharge
Side -
Engine/Motor Manufacturer
Kawasaki -
Engine/Motor Size
18.5 hp -
Engine/Motor Type
4 Cycle -
Engine Starter
Electric -
Transmission Type
Hydrostatic -
Traction Type
Rear WD
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Engine: Engine Speed
3600±100 RPM -
Engine: Spark Plug
NGK BPR4ES -
Engine: Spark Plug Gap
.030"/ .76mm -
Chassis: Height of Cut Range
1.5-4.5"; 1/4" increments -
Engine: Ignition Coil Air Gap
.008-.016" / .2-.4mm -
Engine: Engine Oil Type
1.8 qt (1.7L) 10w-30 engine oil API SF or higher -
Engine: Battery
12V 230CCA -
Chassis: Tire Pressure
13 psi rear -
Drive System: Ground Speed
Up to 8 mph -
Drive System: Gearbox Lubricant
HYPR-OIL 500