2Bros Parts

PISTON KIT 89mm 440cc BIG BORE, NAMURA NA-10004 TRX400 99-07

$93.14

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Delivery to United States 5–8 business days

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Namura Big Bore Piston Kit 440cc NA-10004. Kit includes Piston, Rings, Pin, Clips. Cast piston has super-high silicone content for additional strength. Piston skirts are Molybdenium Teflon coated to minimize resistance and wear and provide extended life. Piston dome is anodized for superior heat resistance and longer lifespan. Compression Ratio is 11:1. Kit is for big bore size 89.00mm.

Specifications
SKU
56-K111_P
Brand
Namura Technologies
Availability
In Stock (5)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
89mm
Variant Id
252647
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Namura Big Bore Piston Kit 440cc 89mm

Enhance the performance of your off-road vehicle with this Namura Big Bore Piston Kit. Designed to upgrade your engine to 440cc, this kit offers a significant power boost and improved durability.

Key Features:

  • Big Bore Upgrade: Increases engine displacement to 440cc for greater power output.
  • Precision Sizing: Piston diameter is 89.00mm, ensuring a precise fit for optimal performance.
  • High-Strength Construction: Features a cast piston with a high silicone content for superior strength and reliability.
  • Reduced Friction & Wear: Molybdenum Teflon coated piston skirts minimize resistance and wear, extending the lifespan of the piston.
  • Enhanced Heat Resistance: The anodized piston dome provides exceptional heat resistance, contributing to longer engine life.
  • Optimized Compression: Achieves an 11:1 compression ratio for a balance of power and efficiency.
  • Complete Kit: Includes piston, rings, pin, and clips for a straightforward installation.

Contents:

  • 1 x Piston
  • 1 x Set of Piston Rings
  • 1 x Piston Pin
  • 1 x Set of Piston Pin Clips

This kit provides everything needed for a significant engine upgrade, delivering enhanced performance and longevity.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Call or email us with your make, model and year and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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