1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 13734919373132722
  3. MAXPEEDINGRODS 9GKPAM

MAXPEEDINGRODS 9GKPAM Cylinder Valve Rebuild Kit Set

fits model: Trx400ex, Sportrax. make: Honda. year: 1999–2008.

9gkpam Maxpeedingrods Cylinder Valve Rebuild Kit For Honda Trx400ex Sportrax 1999-2008 Complete Set

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 9GKPAM ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Engine Type: 4-stroke ), ( Finish: Unfinished ), ( Fitment: For Honda Sportrax Trx400ex 1999-2008 ), ( Items Included: Bolts ), ( Machine Type: Off-road Motorcycle ), ( Material: Aluminum ), ( Performance Part: Yes ), ( Type: Cylinder Head ), ( Unit Type: Unit )

Review MAXPEEDINGRODS Cylinder Valve Rebuild Kit Honda Complete Set fits SPORTRAX TRX400EX 1999–2008

Introducing the Maxima Racing Products 9GKPAM Cylinder Valve Rebuild Kit, specifically designed for Honda TRX400EX Sportrax models manufactured between 1999 and 2008. This comprehensive rebuild kit ensures a perfect fit and high-performance upgrade for your ATV's engine.

The kit includes all the essential components needed to rebuild your ATV's cylinder valves. Each part is meticulously engineered to exceed OEM specifications, providing improved durability, efficiency, and power.

The heart of this kit is the high-performance, oversized 43mm intake valves. These valves offer increased airflow, allowing your engine to breathe more effectively and produce more power. Additionally, the valves' unique design ensures a precise seal, reducing the risk of leaks and improving combustion efficiency.

The exhaust valves in this kit are also upgraded, featuring a larger 30mm diameter. These valves enhance exhaust gas flow, reducing back pressure in the engine, and contributing to improved power and torque.

The kit also includes a set of high-quality, durable valve guides and valve seats. These components are precision machined to ensure a perfect fit and optimal sealing surface, ensuring optimal valve performance and engine longevity.

The Maxima Racing Products 9GKPAM Cylinder Valve Rebuild Kit is an excellent choice for any Honda TRX400EX Sportrax owner seeking to enhance their ATV's performance, improve reliability, and extend engine life. With each component meticulously designed and manufactured to exceed OEM specifications, this kit is an investment that pays for itself in improved performance and longevity.

Maxxispeedingrods 9GKPAM Cylinder Valve Rebuild Kit for Honda TRX400EX Sportrax (1999-2008): A Comprehensive Analysis

1. **Background**

The Maxxispeedingrods 9GKPAM cylinder valve rebuild kit is designed for the Honda TRX400EX Sportrax models produced between 1999 and 2008. Rebuilding the cylinder valves can help improve engine performance, increase fuel efficiency, and extend the engine's lifespan.

2. **Pros**

a. **Quality Components**: The kit includes high-quality valves, springs, and other components that are specifically designed for the Honda TRX400EX Sportrax.

b. **Improved Performance**: Rebuilding the cylinder valves can help improve engine performance by reducing engine knocking, pinging, and other issues that can impact power delivery.

c. **Cost-effective**: Rebuilding the cylinder valves is generally more cost-effective than replacing the entire engine or buying a new ATV.

3. **Cons**

a. **Time-consuming**: Rebuilding the cylinder valves requires a significant amount of time and effort, especially for those who are not mechanically inclined.

b. **Tools and Skills**: To rebuild the cylinder valves, you will need access to specialized tools and have a good understanding of ATV engine mechanics.

c. **Risk of Damage**: There is a risk of damaging other components during the rebuild process, which could result in additional repair costs.

4. **Conclusion**

The Maxxispeedingrods 9GKPAM cylinder valve rebuild kit for the Honda TRX400EX Sportrax (1999-2008) offers several benefits, including improved engine performance and cost-effectiveness. However, it also requires a significant investment of time, skills, and tools, and there is a risk of damaging other components during the rebuild process. Ultimately, the decision to purchase this kit depends on your mechanical abilities, budget, and the condition of your ATV's engine.

5. **Recommendation**

If you are mechanically inclined, have access to the necessary tools, and are comfortable working on your ATV's engine, then the Maxxispeedingrods 9GKPAM cylinder valve rebuild kit is an excellent investment. However, if you are not mechanically inclined or do not have the necessary tools, it may be more cost-effective to have a professional mechanic perform the rebuild for you. Alternatively, if your ATV's engine is in poor condition, it may be more cost-effective to replace the engine or consider purchasing a new ATV.

Details:

Springs And Clips As Pictured. Package included: 4 Rocker Arms. Every product has quality inspection before leaving the factory. Specification: condition: 100% New High Quality.

Application: for Honda Sportrax TRX400EX 1999 -2008. Components and materials ensure a longer service life. Fast Shipping. Factory Warranty.

Best Costumer Service. >>you might also like. 4 Rocker Arm Shafts. 2.High Quality.

Less expensive, easier to install. It begins from the date purchased. Material: Aluminum. Type: Cylinder Rebuild Intake Valve Kit.

offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer.

specifications cylindermotorcycleiz:

  • for models: Trx400ex, Sportrax
  • for makes: Honda
  • for years: 1999-2008
  • brand: Maxpeedingrods
  • mpn: 9gkpam
  • california prop 65 warning: California Prop 65 Warning
  • engine type: 4-stroke
  • finish: Unfinished
  • fitment: For Honda Sportrax Trx400ex 1999-2008
  • items included: Bolts
  • machine type: Off-road Motorcycle
  • material: Aluminum
  • performance part: Yes
  • type: Cylinder Head
  • unit type: Unit

shipping cylindermotorcycleiz:

  • transit: 3-7 Days
  • cost: $0.00
  • carrier: FedEx
  • type: Fixed
  • service: FedEx Ground / FedEx Home Delivery
  • class: Standard

returns cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

  • availability: In Stock
  • options: Ship-to-home
  • started: February 24, 2026
  • quantity: 4
  • sold: 0
  • best offers: True

general cylindermotorcycleiz:

  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
  • condition: New

payments cylindermotorcycleiz:

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  • credit card: Discover

seller cylindermotorcycleiz:

  • # reviews: 643
  • city: Houston, Texas
  • rating: 99.4%
for models: trx400ex, sportrax, for makes: honda, for years: 1999-2008, california prop 65 warning: california prop 65 warning, engine type: 4-stroke, finish: unfinished, fitment: for honda sportrax trx400ex 1999-2008, items included: bolts, machine type: off-road motorcycle, performance part: yes, type: cylinder head, unit type: unit,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, material: aluminum, sku: 13734919373132722,
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