Skip to content

New

🚗 Shop Now, Pay Later with Affirm – Flexible Payments Available at Checkout!

Sold out

NA-80005-4K Top End Kit Twin Cylinder 91.958/+1.00 Can

NA-80005-4K Top End Kit Twin Cylinder 91.958/+1.00 Can

Vendor: NAMURA

Type: Piston kits & Components

SKU: WPS-186-80054

Regular price $160.91
Sale price $160.91 Regular price $354.95
Shipping calculated at checkout.

Out of stock

NA-80005-4K Top End Kit Twin Cylinder 91.958/+1.00 Can

Upgrade your engine's performance with the NA-80005-4K Top End Kit, specifically designed for twin-cylinder engines. This comprehensive kit includes all the essential components you need for a successful top-end rebuild, ensuring your engine runs smoothly and efficiently.

Key Features:

  • Complete Top End Kit: Each kit comes with a piston, rings, wrist pin, clips, top end bearing, and a gasket kit, providing everything you need for a full overhaul.
  • MOS2 (Teflon/Molybdenum) Coated Skirts: Our unique rolled-on application process creates a bond that is 10 times stronger than traditional spray-on coatings. This results in improved heat transfer, reduced friction, and minimizes the risk of cold seizures.
  • Machined Smooth Heads: These heads reflect combustion heat while reducing carbon buildup, which not only protects the piston but can also enhance horsepower and fuel economy by as much as 6%.
  • Anodized Domes: The anodized finish increases heat resistance and durability, making our pistons 75% stronger than their non-anodized counterparts.
  • Hypereutectic Casting Process: This advanced casting method increases silicon content for lower expansion rates and superior wear resistance, allowing components to withstand higher cylinder temperatures.

Why Choose the NA-80005-4K Top End Kit?

This top-end kit is engineered for performance, longevity, and efficiency, making it an ideal choice for enthusiasts and everyday riders alike. Experience the difference in power and reliability with our meticulously designed components that enhance your engine's capabilities.

  • Free Shipping on Ground Orders in the lower 48 States
  • Free Returns Within 60 days
Limited time offer

Get $20 off when you spend $1,000 or more! Learn more

Payment & Security
Payment methods
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

NA-80005-4K Top End Kit Twin Cylinder 91.958/ + 1.00 Can - Repair

NA-80005-4K Top End Kit Twin Cylinder 91.958/+1.00 Can

Regular price $160.91
Sale price $160.91 Regular price $354.95

Subscribe to exclusive discounts via our newsletter

Savings up to 50%

Unleash the Power of Thrilling Rides with our High-Quality RV Parts & Powersports Gear!

Discover more in our FAQ

Shoot our team an email, text or Chat & we’ll get back to you ASAP

Contact Us

How long does it take to process an order?

Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.

Free shipping on almost everything

Save 10% more on online store

All U.S. orders are sent to your home without any extra fees, unless you select Expedited Shipping or reside in HI or AK

60-Day Returns

Enjoy the freedom of stress-free shopping with our hassle-free and return policy.

Secure Payment

Shop with confidence knowing your payments are secure and your information

Customer Service

Mon-Fri, 9am-4pm PST.

Call or Text Us

+1 760-651-4005

Address

529 Main St. Ramona, CA 92065

close
close
close
I have a question
sparkles
close
product
Hello! I am very interested in this product.
gift
Special Deal!
sparkles