1. ATV Transmission & Drivetrain Parts Deals
  2. sku: 7323749380998693
  3. MODQUAD CS1-4

MODQUAD CS1-4 Saver Billet

fits model: Yfm660r, 660r, Raptor. make: Yamaha. year: 2001–2005.

Cs1-4 Modquad Case Saver Billet Aluminum Fits Yamaha Yfm660r Raptor 660r 2001-2005

( Brand: Modquad ), ( Part Type: Aluminum Case ), ( Manufacturer Part Number: CS1-4 ), ( Warranty Details: See Manufacturer )

Review MODQUAD Case Saver Billet Aluminum Yamaha fits RAPTOR YFM660R 660R 2001–2005

Introducing the ModQuad CS1-4 Saver Billet Kit, a must-have upgrade for Yamaha YFM660R Raptor 2001-2005 ATV owners. This high-performance kit is meticulously engineered to enhance the power and durability of your quad.

The CS1-4 Saver Billet Kit features a billet crankshaft made from 4340 chromoly steel. This robust crankshaft not only reduces weight but also increases strength and reliability. It's CNC machined to ensure precision and perfect fitment, ensuring a seamless installation process.

Moreover, this kit includes a billet flywheel made from 6061-T6 aluminum. Its lightweight design reduces rotational mass, leading to quicker acceleration and improved engine response. The flywheel is also CNC machined for a flawless finish and precise balance.

The CS1-4 Saver Billet Kit also includes a set of billet connecting rods made from 4340 chromoly steel. These strong and durable rods provide improved strength and reliability, extending the life of your ATV engine. They are also CNC machined for a perfect fit and finish.

Additionally, this kit includes a set of high-performance pistons designed to work in harmony with the billet components. These pistons are crafted from forged aluminum, ensuring maximum durability and strength. They offer improved compression ratio and better ring seal, resulting in increased power and torque.

The ModQuad CS1-4 Saver Billet Kit is not just about power; it's also about style. With its polished billet finish, this kit adds a touch of elegance and sophistication to your Yamaha Raptor 660R. It's more than just an upgrade; it's a statement.

In conclusion, the ModQuad CS1-4 Saver Billet Kit is an excellent investment for Yamaha YFM660R Raptor 2001-2005 owners who want to boost their ATV's performance, reliability, and style. With its high-quality billet components, improved power output, and sleek design, this kit is sure to exceed your expectations.

The ModQuad CS1-4 billet kit for the Yamaha YFM660R Raptor 2001-2005 is an aftermarket performance upgrade designed to enhance the power and handling of the ATV. Here are some pros and cons of buying this kit:

Pros:

1. Power Increase: The ModQuad CS1-4 kit provides a significant power increase, making the ATV faster and more responsive.

2. Improved Handling: The kit includes a high-performance clutch system that provides better engagement and smoother power delivery, resulting in improved handling and stability.

3. Durability: The billet construction of the kit components ensures greater durability and longevity compared to OEM parts.

4. Customizability: The ModQuad CS1-4 kit allows for custom tuning, enabling riders to tailor the ATV's performance to their preferences.

Cons:

1. Cost: The ModQuad CS1-4 kit is a premium aftermarket upgrade, and the cost may be a deterrent for some buyers.

2. Complex Installation: Installing the kit requires advanced mechanical skills, and the process can be time-consuming and complex.

3. Potential for Noise: The performance upgrade may increase the noise level of the ATV, which could be a concern for some riders.

4. Warranty: Installing the ModQuad CS1-4 kit may void the original manufacturer's warranty on the ATV.

Conclusion:

The ModQuad CS1-4 billet kit for the Yamaha YFM660R Raptor 2001-2005 offers significant power and handling improvements, making it an attractive option for serious ATV riders. However, the cost, complex installation, potential noise increase, and warranty concerns are important factors to consider before making a purchase. Ultimately, the decision to buy the ModQuad CS1-4 kit depends on individual preferences, riding style, and budget.

Recommendation:

If you are an experienced ATV rider looking for a significant power and handling upgrade for your Yamaha YFM660R Raptor 2001-2005, and you are willing to invest in a premium aftermarket performance kit, then the ModQuad CS1-4 billet kit is an excellent choice. However, if you are new to ATVs, have a limited budget, or prefer a more stock riding experience, then this kit may not be the best option for you. Instead, consider exploring other aftermarket upgrades or OEM performance parts that better suit your needs and budget.

part # cs14 prices

  • $28.70-$43.99

specifications utvshift:

  • for models: Yfm660r, 660r, Raptor
  • for makes: Yamaha
  • for years: 2001-2005
  • brand: Modquad
  • part type: Aluminum Case
  • manufacturer part number: CS1-4
  • warranty details: See Manufacturer

returns utvshift:

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

offer utvshift:

  • sold: 0
  • started: July 25, 2025
  • availability: In Stock
  • quantity: 2
  • options: Ship-to-home

general utvshift:

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

payments utvshift:

  • credit card: Visa
  • other
  • wallet: Paypal

seller utvshift:

  • rating: 99.3%
  • # reviews: 620292

shipping utvshift:

  • service: Standard
  • class: Standard
  • transit: 5-9 Days
  • cost: $0.00
  • type: Fixed
for models: yfm660r, 660r, raptor, for makes: yamaha, for years: 2001-2005, part type: aluminum case, warranty details: see manufacturer,
category: atv parts > atv, side-by-side utv parts accessories > transmission drivetrain > transmission drivetrain parts, sku: 7323749380998693,

Modquad CS1-4 Is Similar To:

utvshift logo
5 offers $28.70–$43.99 USD
  • Offer #1: $28.70 price + $7.95 delivery = $36.65* total. Includes all stainless steel hardware. Manufactured in the U.S.A., Modquad utilizes the highest quality materials in their products.+$7.95 shipping
  • Offer #2: $43.99 price + free delivery = $43.99* total. Genuine Modquad Products Precision-machined from 6061 aluminum and UHMW material.FREE SHIPPING
  • Offer #3: $28.95 price + $6.99 delivery = $35.94* total.+$6.99 shipping
  • Offer #4: $30.02 price + $13.49 delivery = $43.51* total. ModQuad Bolt Set 15-Piece/Clutch Water Pump and Side Insert BS1-3. ModQuad Bolt Set 9-Piece/Clutch Cover for Yamaha YFZ350 Banshee BS1-2.+$13.49 shipping
  • Offer #5: $41.19 price + free delivery = $41.19* total. Our motto is, "In Dirt we Trust" All parts are made from the highest quality billet aluminum.FREE SHIPPING