HONDA 42400-HR4-A21 Differential Assy. 42T

( Manufacturer Part Number: 42400-HR4-A21 ), ( Manufacturer Warranty: 1 Year ), ( Item Weight: 7.0000 ), ( Type: Oem )

Review HONDA Genuine Differential Assy. 42t

The Honda 42400-HR4-A21 Differential is an essential component of Honda's robust lawn tractor drive system. This high-performance differential assembly is meticulously engineered to deliver optimal power transfer and superior traction, ensuring that your lawn tractor maintains excellent maneuverability and performance.

Featuring a robust, yet lightweight design, this Honda differential is constructed using high-strength materials, including durable cast iron housing and precision-machined gears. This not only enhances the differential's durability but also helps in reducing overall weight, leading to improved fuel efficiency and easier handling.

The Honda 42400-HR4-A21 Differential comes with a 42-tooth pinion gear that offers an optimal gear ratio for general-purpose lawn tractor applications. This gear ratio strikes a perfect balance between torque and speed, allowing your lawn tractor to effortlessly navigate through various terrains, from flat grassy areas to sloped and uneven ground.

Inside the differential housing, you'll find sealed-for-life bearings that are designed to minimize maintenance requirements and prolong the life of the differential. These bearings ensure smooth, quiet operation, reducing vibrations and unwanted noise, making your lawn mowing experience more enjoyable.

Additionally, the Honda 42400-HR4-A21 Differential is engineered for easy installation. It comes with all necessary mounting hardware, making the replacement process as hassle-free as possible. Also, its OEM (Original Equipment Manufacturer) design guarantees a perfect fit and seamless integration with your Honda lawn tractor.

In summary, the Honda 42400-HR4-A21 Differential is an essential, high-performance component for your Honda lawn tractor. Its robust construction, optimal gear ratio, and sealed-for-life bearings ensure superior traction, durability, and quiet operation. With easy installation and OEM design, this differential is the go-to choice for keeping your Honda lawn tractor running at its best.

The Honda HR4-A21 differential is a popular choice for those in need of a durable and reliable replacement unit for their lawn mowers or other small machinery. Below are some pros and cons to help you make an informed decision about purchasing this differential:

1. High-quality manufacturing: Honda is known for its robust and long-lasting components. The HR4-A21 differential is no exception, with its precision-engineered design and high-quality materials.

2. Durability: The Honda HR4-A21 differential is built to withstand heavy usage and harsh conditions. Its sturdy construction makes it an excellent choice for commercial applications or those who require heavy-duty machinery.

3. Smooth operation: The HR4-A21 differential provides smooth and quiet operation, ensuring that your machinery runs efficiently and effectively.

4. Easy installation: The Honda differential comes with clear installation instructions and is designed to fit easily into most small machinery.

5. Backed by a strong warranty: Honda offers a one-year warranty on this differential, giving you peace of mind and protection against any manufacturing defects.

1. Expensive: The Honda HR4-A21 differential is priced higher than some of its competitors. However, its high-quality manufacturing and durability may justify the added cost for some users.

2. Limited availability: This differential may not be readily available at all hardware stores or online retailers, so it may require some research and effort to locate and purchase.

3. Compatibility issues: While the Honda HR4-A21 differential is compatible with a wide range of small machinery, it may not fit all models. Be sure to double-check the compatibility before making a purchase.

The Honda HR4-A21 differential is an excellent choice for those in need of a high-quality and durable replacement unit for their small machinery. Its smooth operation, ease of installation, and strong warranty make it a wise investment for those who prioritize reliability and efficiency. However, its higher price point and limited availability may be a concern for some users.

If you are in the market for a new differential for your small machinery and are willing to invest in a high-quality component, the Honda HR4-A21 differential is an excellent choice. Its durability and smooth operation make it a worthwhile investment for both residential and commercial applications. However, be sure to double-check the compatibility and availability before making a purchase.

part # 42400hr4a21 prices

• $621.69-$681.37

specifications utvshift:

• for makes: Honda
• manufacturer part number: 42400-HR4-A21
• manufacturer warranty: 1 Year
• item weight: 7.0000
• type: Oem

general utvshift:

• ATV, Side-by-Side UTV Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts
• condition: New

returns utvshift:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller utvshift:

• # reviews: 63892
• rating: 99.8%

payments utvshift:

• other
• credit card: Diners-club
• wallet: Google-pay

offer utvshift:

• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: June 12, 2026
• sold: 0

shipping utvshift:

• transit: 4-8 Days
• service: Economy, Standard
• class: Economy, Standard
• cost: $0.00
• type: Fixed

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