John Deere LT166 Tractor Review & Specification

john deere lt166

John Deere LT166 Tractor Review & Specification

John Deere
John Deere LT166
Briggs & Stratton
Engine Type:
Four-stroke, air-cooled, V
Transmission & Oil Capacity:
1998 - 2001
Fuel Type:

The John Deere LT166 tractor, a notable member of the LT series, exemplifies the renowned craftsmanship and reliability for which John Deere is known. Established in Horicon, Wisconsin, USA, John Deere has been a leading manufacturer of agricultural equipment for over a century. With a rich history of innovation and a commitment to quality, John Deere has become a trusted name in the farming industry.

Powering the John Deere LT166 is a robust 0.5 L V-twin gasoline engine. This engine provides ample power and performance for its intended use as a lawn tractor. Known for its smooth operation and durability, the V-twin configuration delivers efficient and reliable performance, ensuring the LT166 can handle a variety of lawn care tasks with ease.

The JD LT166 features a hydrostatic transmission, offering infinite forward and reverse gears. This transmission provides seamless and effortless speed control, allowing operators to maneuver with precision and efficiency. The hydrostatic transmission eliminates the need for manual shifting, making it user-friendly and reducing operator fatigue during long hours of operation. The maneuverability and ease of use offered by the LT166 enhance productivity, allowing operators to complete lawn care tasks quickly and effortlessly.

Features Of John Deere LT166 Tractor

Features Of John Deere LT166 Tractor
Image source:

The John Deere LT166 tractor, with its reputable company history, reliable engine, efficient transmission, and user-friendly features, offers an excellent solution for homeowners and landscaping professionals. With its durability and exceptional performance, the LT166 proves to be a valuable asset in achieving a well-maintained and visually appealing lawn.


The John Deere LT166 lawn tractor is powered by the reliable Briggs & Stratton 303777 engine, renowned for its performance and durability. With a displacement of 0.5 liters (479 cm2) and a two-cylinder configuration, this natural aspirated gasoline engine delivers dependable power for a wide range of lawn care tasks. The 68.6 mm cylinder bore and 66.0 mm piston stroke contribute to the engine’s efficiency and smooth operation.

With a maximum output power of 16.2 PS (11.9 kW; 16.0 HP), the Briggs & Stratton engine in the John Deere LT166 provides ample power to handle demanding lawn mowing and other landscaping activities. The engine’s performance ensures efficient cutting and mulching, allowing for a pristine and well-manicured lawn.

Additionally, the two-cylinder configuration of the Briggs & Stratton engine offers smooth and balanced operation, reducing vibration and enhancing overall user comfort. The engine’s design and construction prioritize durability, ensuring a long service life and minimizing the need for frequent repairs or replacements.


The John Deere LT166 tractor is equipped with a Tuff-Torq K51 hydrostatic transmission, renowned for its reliability and smooth operation. This transmission offers infinite forward and reverse gears, allowing for seamless speed control and maneuverability. With a maximum forward speed of 8.8 km/h (5.5 mph) and a reverse speed of 4.8 km/h (3 mph), the LT166 ensures efficient and precise movement in both directions.

The hydrostatic transmission system of the John Deere LT166 eliminates the need for manual shifting, providing effortless operation for the user. It utilizes hydraulic fluid to transfer power from the engine to the wheels, allowing for smooth and continuous speed adjustment without the need for clutching or gear changing.

Furthermore, the hydrostatic transmission requires minimal maintenance compared to manual or mechanical transmissions, reducing downtime and ensuring consistent performance. Operators can focus on their tasks without worrying about clutch adjustments or gear changes, enhancing productivity and reducing operator fatigue.

Other Mechanical Features

In addition to its engine and transmission, the John Deere LT166 comes with other essential features that enhance its functionality and convenience. It is equipped with manual steering, ensuring straightforward and responsive control. The open operator station provides a comfortable and accessible working environment. With a fuel tank capacity of 7.5 liters (2 US gal.; 1.6 Imp. gal), the LT166 allows for extended periods of operation without frequent refueling.

List Of Serial Number

The serial number of the tractor can be found in front and at the foot of the seat on the body of the tractor.

The serial number of the tractor is written adjacent to the year of its manufacture:

  • 1998 – 010001
  • 1999 – 045001
  • 2000 – 085001
  • 2001 – 125001

Pros and Cons

Here are some factual pros and cons considering the overall John Deere LT166 Tractor.

Pros Of John Deere LT166 Tractor

  • The John Deere LT166 tractor is built to last, with a reputation for durability and longevity. It is designed to withstand demanding lawn care tasks and provides reliable performance over time.
  • The engine’s natural aspiration design contributes to its efficiency and ease of maintenance. It is also designed to meet stringent emission standards, making it environmentally friendly.
  • With its user-friendly design and low maintenance requirements, the LT166’s transmission enhances overall productivity and convenience for lawn care and landscaping tasks.
  • The LT166 features intuitive controls and a comfortable operator station, making it easy to operate and reducing operator fatigue. It offers excellent visibility, adjustable seating, and accessible controls, enhancing overall user experience.

Cons Of John Deere LT166 Tractor

  • The LT166 tractor has a relatively lower horsepower compared to larger models. While it is sufficient for most residential lawn care tasks, it may struggle with more challenging terrain or heavy-duty applications.
  • The top speed of the LT166 is lower compared to some other lawn tractors. This may impact productivity, especially when covering larger areas or when time is a crucial factor.

Price Of John Deere LT166 Tractor

The original price of the $3,199 in 1997 tractor was $14,000 in 1998. The price of a used tractor can depend upon the condition of its engine and other mechanical components.


The John Deere LT166 tractor proves to be a reliable and versatile machine for residential lawn care and landscaping tasks. With its durable construction, user-friendly design, and high-quality cut, the LT166 offers homeowners and professionals an efficient solution for maintaining a well-manicured lawn. While it may have limitations in power and speed, its versatility and ease of use make it a popular choice in its class. The LT166’s reputation for durability and longevity further adds to its appeal. Overall, the John Deere LT166 tractor is a dependable option that delivers consistent performance and enhances the overall lawn care experience.

Technical Specifications

Engine Details
Engine Model: Briggs & Stratton 303777
Bore and stroke: 68.6 mm X 66.0 mm (2.7 in X 2.6 in)
Engine type: Four-stroke, air-cooled, V
Compression ratio: NA
Cylinders: 2
Horsepower: 16.2 PS (11.9 kW; 16.0 HP)
Fuel type: Gasoline
Starter: Electric
Fuel Capacity: 7.5 liters (2 US gal.; 1.6 Imp. gal)
Coolant Capacity: NA
Rated RPM: NA
Displacement: 0.5 L, 479 cm2, (29.2 cu·in)
Intake valve clearance: NA
Torque RPM: NA
Exhaust valve clearance: NA
Power Details
Drawbar (Claimed):​ NA
Drawbar (Tested): NA
PTO (Claimed): NA
PTO (Tested): NA
Belt (Claimed): NA
Belt (Tested): NA
Plows: NA
Transmission and Chassis​
Chassis: 4×2 2WD
Transmission type: Hydrostatic
Steering type: Manual
Gears: Infinite forward and reverse
Brakes: NA
Speed: Forward: 8.8 kmh (5.5 mph) Reverse: 4.8 (3 mph)
Transmission model: Tuff-Torq K51
Transmission oil capacity: NA
Dimensions and Tires​
Wheelbase: 46.3 inches
Front tire: Lawn/turf: 15×6.00-6
Weight: 180 kg (397 lbs)
Rear tire: Lawn/turf: 20×10.00-8
Height: 1,030 mm (40.6 in)
Height (Exhaust): NA
Hitch And Attachments​
Mower deck type: Mid-mount
Mower deck size: 38”,42”, 48 (inches)
Mid mower deck: NA
Mid mower deck size: NA
Blade type: Front-mount
Blade Width: 42" inches
Hitch type: NA
Attachment list: 38" mid-mount mower deck, 42" mid-mount mower deck, 48" mid-mount mower deck, Snowblower, Blade

Quick Overview:

John Deere
John Deere LT166
Briggs & Stratton
Engine Type:
Four-stroke, air-cooled, V
Transmission & Oil Capacity:
1998 - 2001
Fuel Type: