Honda H5518

The Honda H5518 garden tractor, a stalwart in its class, epitomizes reliability and versatility. Equipped with a potent Honda GX640 engine and available in both 2-wheel and 4-wheel drive variants, it navigates terrain with finesse. Its manual four-wheel steering ensures exceptional maneuverability, while attachments like mower decks and snow blowers enhance its utility. However, users may encounter occasional transmission challenges and wear-related issues with brakes and hydraulics. Diligent maintenance, including regular checks and adjustments, is crucial to mitigate these concerns, ensuring continued optimal performance for this enduring workhorse of the garden.

Honda H5518 General Specifications
ModelHonda H5518
Years Produced1991 – 1999
TypeGarden Tractor
ModelHonda GX640
Fuel TypeGasoline
Displacement634 cc (38.7 ci)
Power18 hp (13.4 kW) @ 3000 RPM
StarterElectric (12 volts)
Fuel SystemCarburetor
Air CleanerDry (Part No
SparkplugNGK BPR5ES-11
Sparkplug Gap0.040 inches (1.016 mm)
Intake Valve Clearance0.010 inches (0.254 mm)
Exhaust Valve Clearance0.018 inches (0.457 mm)
Coolant Capacity2.9 qts (2.7 L)
Gears8 forward and 2 reverse
Oil Capacity4 qts (3.8 L)
Note**Four forward and two reverse gears with high and low range.
Drive4×2 2WD (H5518A2), 4×4 MFWD 4WD (H5518A4)
SteeringManual four-wheel
BrakesMechanical shoe brakes
Fuel Tank2.5 gal (9.5 L)
Hydraulic System0.53 gal (2.0 L)
Hydraulics Pressure1280 psi (88.3 bar)
Tractor Hitch
Rear Lift550 lbs (249 kg)
Front Lift550 lbs (249 kg)
PTO (Power Take-Off)
Rear PTOIndependent, 2000 RPM
Front PTOIndependent, 2650 RPM
Lawn/Turf Front20×7.00-12.2
Lawn/Turf Rear24×8.00-14.2
Wheelbase51.4 inches (130 cm)
Length86.2 inches (218 cm)
Width41.7 inches (105 cm)
Height (ROPS)70.9 inches (180 cm)
Weight948 lbs (2WD dry) / 1,014 lbs (4WD dry)
Weight430 kg (2WD dry) / 459 kg (4WD dry)
Ground Clearance6.7 inches (17 cm)
Attachments Overview
Mower Decks46″ and 52″ mid-mount mower decks
Snowblower42″ two-stage front-mount snowblower
Blades46″ and 54″ front-mount blades
Front-End LoaderFL5540 loader (only for H5518A4 4WD model)
Lift Capacity400 lbs at full pin
Bucket Width42 inches
Honda H5518 Garden Tractor Overview

The Honda H5518 is a robust and versatile garden tractor designed to tackle a variety of tasks with efficiency and reliability. Produced by Honda between 1991 and 1999, this model comes in two variants: the H5518A2 with 2-wheel drive (2WD) and the H5518A4 with 4-wheel drive (4WD). Equipped with a powerful Honda GX640 engine, this tractor offers dependable performance for both residential and light commercial use.

Engine Performance and Transmission

Powered by the Honda GX640 gasoline engine, the H5518 delivers a formidable 18 horsepower at 3000 RPM. With a liquid-cooled 2-cylinder design, this engine ensures efficient operation and consistent power delivery. Paired with a gear transmission offering 8 forward and 2 reverse speeds, the H5518 provides versatility for various terrain and tasks. However, some users have reported issues with the transmission over time, particularly with gear engagement and shifting smoothness. Regular maintenance, including fluid checks and adjustments, can help mitigate these concerns.

Chassis and Design Features

Built on a sturdy chassis with manual four-wheel steering, the Honda H5518 offers exceptional maneuverability and control, especially in tight spaces and around obstacles. The inclusion of mechanical shoe brakes provides reliable stopping power, contributing to safe operation during use. However, as with any mechanical braking system, wear and tear may lead to diminished performance over time. Routine inspection and adjustment of the brake components can help maintain optimal braking efficiency.

Attachments and Capabilities

The H5518 is equipped to handle a range of attachments, including mid-mount mower decks, snow blowers, and front-mount blades. Additionally, the H5518A4 model offers compatibility with a front-end loader, expanding its utility for various landscaping and maintenance tasks. While these attachments enhance the tractor’s versatility, users may encounter issues related to attachment compatibility or hydraulic system performance. Regular inspection and maintenance of hydraulic components, such as hoses and seals, are essential to prevent leaks and ensure proper functionality.

Common Problems and Maintenance Considerations

Like any piece of machinery, the Honda H5518 garden tractor is not immune to wear and potential issues over time. Some common problems reported by users include:

Transmission Issues: Occasional difficulties with gear engagement or shifting smoothness may arise, particularly in older models. Regular transmission fluid checks and adjustments can help alleviate these issues.

Brake Wear: Mechanical shoe brakes may experience wear and diminished performance with prolonged use. Routine inspection and adjustment of brake components are recommended to ensure optimal braking efficiency and safety.

Hydraulic System Maintenance: The hydraulic system, critical for operating attachments such as loaders and blades, requires regular inspection and maintenance to prevent leaks and ensure proper performance.

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