PROTAPER MN-K5NP Rear Atv Steel Sprocket Ui MN/K5NP

( Brand: Protaper ), ( Manufacturer Part Number: MN/K5NP ), ( Compatible Year: 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 ), ( Compatible Model: Trx400ex Sportrax ), ( Bundle Description: 1 Pc Genuine Protaper Atv Cs4 Steel Rear Sprocket ), ( Type: Atv Cs4 Steel Rear Sprocket ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review PROTAPER Mn/k5np Atv Steel Rear Sprocket Honda Ui fits SPORTRAX CS4 TRX400EX 1999–2008

Introducing the ProTaper MN/K5NP Atv CS4 Steel Rear Sprocket, specifically designed for the Honda TRX400EX Sportrax models produced between 1999 and 2008. This high-performance sprocket is an excellent upgrade for ATV enthusiasts seeking improved power transmission and durability.

Manufactured from premium CS4 steel, this sprocket boasts exceptional strength and rigidity. Its hardwearing properties ensure that it can withstand the demands of off-road riding, prolonging its lifespan while delivering optimal performance. The steel material also facilitates superior heat dissipation, reducing the likelihood of warping or melting under heavy usage.

The ProTaper MN/K5NP Atv CS4 Steel Rear Sprocket features an innovative tooth design, engineered to provide better torque transfer from the engine to the drive wheels. This results in smoother power delivery and superior acceleration, giving you the edge you need to tackle challenging trails with confidence.

In addition, this sprocket comes with a 15-tooth configuration, which is suitable for most aftermarket drive belts. Its compatibility with various belt sizes makes it a versatile choice for riders who prefer customizing their ATV setup.

This ProTaper sprocket is an easy drop-in replacement for your stock component. Its precision machining ensures a perfect fit, minimizing the installation process and eliminating the need for modifications. Plus, its durable coating resists corrosion and wear, keeping your ATV looking great and performing at its best.

Upgrade your Honda TRX400EX Sportrax with the ProTaper MN/K5NP Atv CS4 Steel Rear Sprocket and experience enhanced power transmission, superior durability, and unmatched off-road performance.

The Protaper MN/K5NP CS4 steel rear sprocket is a popular aftermarket option for the 1999-2008 Honda TRX400EX Sportrax. This sprocket offers several benefits and drawbacks, which are as follows:

1. Durability: The CS4 steel sprocket is more robust than the stock sprocket. It can withstand the stresses of off-road riding, heavy loads, and high-performance use.

2. Gearing: The CS4 sprocket offers a 14-tooth design, which provides a taller final drive ratio. This results in a smoother power delivery and improved top-end speed.

3. Lightweight: Despite its strength, the CS4 steel sprocket is lighter than the stock sprocket. This can lead to better acceleration and overall performance.

4. Customization: The CS4 sprocket is available in various sizes, allowing riders to customize their gearing to suit their riding style and terrain.

1. Cost: The CS4 steel sprocket is more expensive than the stock sprocket. This may deter some riders from making the upgrade.

2. Installation: Installing the CS4 sprocket requires some mechanical know-how and tools. It may be necessary to purchase a new chain to ensure proper fitment.

3. Noise: Some riders have reported increased noise levels after installing the CS4 sprocket. This may be due to the lighter weight and different material of the sprocket.

The Protaper MN/K5NP CS4 steel rear sprocket offers several advantages, including durability, improved gearing, lighter weight, and customization options. However, it comes with a higher cost, installation challenges, and potential noise increase. Ultimately, the decision to purchase the CS4 sprocket depends on the rider's priorities, budget, and riding style.

If you prioritize durability, improved gearing, and the ability to customize your ATV's performance, then the Protaper MN/K5NP CS4 steel rear sprocket is a worthwhile investment. However, if you're on a tight budget or concerned about the installation process and potential noise increase, you may want to consider other aftermarket options or sticking with the stock sprocket.

part # mnk5np price

• $70.05

specifications utvshift:

• for models: Cs4, Trx400ex, Sportrax
• for makes: Honda
• for years: 1999-2008
• brand: Protaper
• manufacturer part number: MN/K5NP
• compatible year: 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999
• compatible model: Trx400ex Sportrax
• bundle description: 1 Pc Genuine Protaper Atv Cs4 Steel Rear Sprocket
• type: Atv Cs4 Steel Rear Sprocket
• core charge: Free No Core Charge
• fitment type: Direct Replacement

shipping utvshift:

• class: Standard
• cost: $0.00
• type: Fixed
• transit: 3-5 Days
• service: Standard

offer utvshift:

• started: November 2, 2025
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1

general utvshift:

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

payments utvshift:

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

returns utvshift:

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

seller utvshift:

• rating: 97.9%
• # reviews: 12985

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