CSDEX 12151878 Rear Differential

( Brand: Csdex ), ( Manufacturer Part Number: 12151878 ), ( Transmission Type: Automatic ), ( Mount Type: Bolt On ), ( Mounting Hardware Included: No ), ( Warranty: 1 Year ), ( Material: Metal ), ( Oe/oem Part Number: 41300-hm5-a10, 41300-hm5-850 ), ( Type: Differential Assembly ), ( Placement On Vehicle: Rear )

Review CSDEX Rear Differential Assembly Honda fits FOURTRAX TRX300 300 2X4 1988–2000

Introducing the CSDEX 12151878 Rear Differential for Honda Fourtrax 300 (TRX300), a high-performance replacement part designed to fit Honda Fourtrax 300 ATVs manufactured between 1988 and 2000. This rear differential is an excellent upgrade for those seeking improved off-road capabilities, durability, or a repair solution for a worn-out differential.

The CSDEX 12151878 Rear Differential boasts several advanced features. Its robust design is constructed from premium materials, ensuring superior strength and longevity. The differential housing is engineered to withstand the rigors of off-road riding, while its high-quality gears deliver efficient power transfer and excellent torque.

The CSDEX 12151878 Rear Differential is also engineered for easy installation. It comes pre-assembled with all necessary seals, making the replacement process more straightforward and time-efficient. Additionally, it features a standard pinion angle, ensuring a seamless fitting process and eliminating the need for extensive modifications.

One of the key advantages of the CSDEX 12151878 Rear Differential is its enhanced performance. Its upgraded design provides better ground clearance, allowing for improved off-road capabilities, and reduced unsprung weight, which translates to improved handling and a smoother ride.

Furthermore, the CSDEX 12151878 Rear Differential is designed to provide excellent value for money. It is competitively priced compared to other high-performance aftermarket differentials, making it an attractive option for Honda Fourtrax 300 owners looking to upgrade their vehicle's performance without breaking the bank.

In summary, the CSDEX 12151878 Rear Differential for Honda Fourtrax 300 (TRX300) is an excellent upgrade for those seeking improved off-road capabilities, durability, or a repair solution for a worn-out differential. Its robust design, easy installation, enhanced performance, and competitive pricing make it a top choice for Honda Fourtrax 300 owners looking to maximize their ATV's potential.

The CSDEX 12151878 rear differential is a popular aftermarket option for Honda Fourtrax 300 TRX300 models manufactured between 1988 and 2000. This differential comes with its own set of advantages and disadvantages that potential buyers should consider before making a purchase.

1. Improved Durability: The CSDEX 12151878 differential is known for its increased durability compared to the stock differential. It is designed to withstand off-road conditions and heavy use.

2. Enhanced Performance: This aftermarket differential provides better performance by reducing wheel hop and improving traction. It also allows for better articulation, making it ideal for rough terrains.

3. Easy Installation: The CSDEX 12151878 differential is relatively easy to install, making it a popular choice among DIY enthusiasts. It comes with clear installation instructions and all necessary hardware.

1. Cost: The CSDEX 12151878 differential is more expensive than the stock differential. While the performance and durability improvements may justify the cost for some, others may find it to be a deterrent.

2. Noise: Some users have reported increased noise levels after installing this differential. This can be caused by the gears engaging more loudly or by other factors.

3. Requires Maintenance: Like any mechanical component, the CSDEX 12151878 differential requires regular maintenance to ensure optimal performance. This includes regular oil changes and checking for leaks.

The CSDEX 12151878 rear differential offers significant improvements in durability, performance, and articulation for Honda Fourtrax 300 TRX300 models. However, it comes with a higher price tag and may produce more noise than the stock differential. Ultimately, the decision to purchase this differential depends on the user's priorities and budget.

If you are an off-road enthusiast who values durability and performance, the CSDEX 12151878 rear differential is a worthwhile investment. However, if you are on a tight budget or prioritize a quiet ride, you may want to consider other options. It's always a good idea to read reviews and consult with experts before making a purchase.

part # 12151878 price

• $139.07

specifications utvshift:

• for models: Trx300, 300, 2x4, Fourtrax
• for makes: Honda
• for years: 1988-2000
• brand: Csdex
• manufacturer part number: 12151878
• transmission type: Automatic
• mount type: Bolt On
• mounting hardware included: No
• warranty: 1 Year
• material: Metal
• oe/oem part number: 41300-hm5-a10, 41300-hm5-850
• type: Differential Assembly
• placement on vehicle: Rear

general utvshift:

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

seller utvshift:

• # reviews: 4690
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• time: 30 Days
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offer utvshift:

• best offers: True
• options: Ship-to-home
• quantity: 10
• availability: In Stock
• started: January 5, 2026
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Csdex 12151878 Is Similar To:

• Csdex 12151873 Rear Differential Assembly For Honda Foreman 500 And Rancher 420 2014-2016 (77% similar) $167.30. (October 14th, 2025)