PROX

PROX N424-21 Keihin Pilot Jet #45 Honda CRF150R

Precision Fuel Delivery for Your Honda CRF150R Optimize your Honda CRF150R's performance with the Pro X N424-21 Series Keihin Pilot Jet. These high-quality aftermarket jets are designed for Keihin carburetors, ensuring precise fuel delivery and improved engine response. Specifications: Serie...

$20.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Precision Fuel Delivery for Your Honda CRF150R

Optimize your Honda CRF150R's performance with the Pro X N424-21 Series Keihin Pilot Jet. These high-quality aftermarket jets are designed for Keihin carburetors, ensuring precise fuel delivery and improved engine response.

Specifications:

  • Series: N424-21
  • Compatibility: Honda CRF150R (2007-2009). See fitment guide for other compatible machines.
  • Type: Aftermarket Jet
  • Carburetor Compatibility: Keihin

Key Features

This product cannot be sold to residents in the state of California.

High quality aftermarket jets for Keihin carburetors.

Specifications

Product Type
Pilot Jet
Jet Size
#45
Carburetor Compatibility
Keihin carburetors
Vehicle Compatibility
Honda CRF150R

Pros & Cons

👍 Pros

  • Offers a high-quality aftermarket solution for Keihin carburetors, ensuring reliable performance.
  • Specifically designed as a pilot jet, playing a critical role in the carburetor's low-speed fuel mixture.
  • The #45 size indicates a precise fuel flow, allowing for fine-tuning of the Honda CRF150R engine.
  • Provides a component essential for maintaining or adjusting the fuel system of compatible vehicles.
  • Made by PROX, a brand known for producing motorcycle components.

👎 Cons

  • This product cannot be sold to residents in the state of California due to unspecified regulations.
  • The jet is only compatible with Keihin carburetors, limiting its use with other carburetor brands.
  • The #45 size is specific, and users may require different jet sizes for optimal tuning depending on conditions or modifications.
  • The description does not provide details on the material composition or manufacturing process of the jet.
  • Exclusively designed for the Honda CRF150R, which narrows its application to a specific motorcycle model.

Frequently Asked Questions

These are high-quality aftermarket jets specifically designed for Keihin carburetors, ensuring compatibility.
This product is a #45 Keihin Pilot Jet, designed for precise fuel delivery.
No, this product cannot be sold to residents in the state of California due to specific regulations.
This PROX pilot jet is designed for the Honda CRF150R, indicating its intended application.