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644EC Premium Air Filter Made in the USA fits 1.5 Filter Adaptors
644EC Premium Air Filter - Blue
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644EC Premium Air Filter Made in the USA fits 1.5 Filter Adaptors

Part Number: 644EC
Online Price: $29.99
Premium 1.5" Racing Air Filter for Go-Karts & Mini Bikes – Fits Mikuni VM/PZ Carbs
Availability: In Stock.

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Description

Premium Racing Air Filter for Go-Karts & Mini Bikes – Fits 1.5" (38mm) Filter Adapters


Maximize performance and protect your engine with our USA-made Premium Air Filter, engineered specifically for racing go-karts, mini bikes, and small engines using 1.5" (38mm) filter adapters—including most Mikuni VM/PZ-style round slide carburetors and their clones.


Manufactured in the USA to strict ISO 5011 standards, this high-performance air filter is built on over 30 years of race-proven automotive technology. Its deep, wide pleat design dramatically increases surface area for superior filtration without restricting airflow.


Designed for Performance & Engine Protection

  • Improved airflow helps stabilize air/fuel ratios for consistent tuning and peak engine efficiency
  • Cooler intake temps contribute to more reliable performance under race conditions
  • Ideal for fine dust, sand, or dirty track environments
  • Far superior to off-shore filters that compromise filtration and durability

Whether you're racing in the dirt or dialing in your custom build, this filter delivers unmatched performance and engine safety.


Key Features:

  • Made in the USA – Built to ISO 5011 filtration standards
  • Race-Optimized Design – Deep pleats for higher airflow and filtration
  • Cone Shape – Compact and aerodynamic for tight builds
  • Engine-Safe – Keeps fine particles out of high-performance components


Specifications:

  • Fits: 1.5" (38mm) Filter Adapters (PZ/VM Mikuni round slide carbs & knock-offs)
  • Design: Cone
  • Top Width: 2"
  • Bottom Width: 3"
  • Element Length: 2.5"
  • Overall Length: 3.25"

FAQ

Q1: What size carburetors or adapters does this air filter fit?

A: This air filter fits 1.5" (38mm) filter adapters, commonly found on Mikuni VM/PZ round slide carburetors and their knock-offs used in go-karts, mini bikes, and other small engine builds.


Q2: Is this air filter suitable for racing in dusty or sandy environments?

A: Yes. It’s specifically designed for fine, dusty, and sandy environments, offering superior filtration and airflow compared to typical off-shore filters.


Q3: Does this air filter improve performance?

A: Yes. With its wide, deep pleats and high-flow design, this filter improves air intake efficiency, helping to stabilize air/fuel ratios and support more consistent engine tuning—which translates to more performance potential.


Q4: Is the air filter washable or reusable?

A: This specific filter is washable, and it is built for extended performance use. For optimal performance, clean it regularly, especially when exposed to high dust or debris.


Q5: What are the dimensions of this air filter?

A:

  • Top Width: 2"
  • Bottom Width: 3"
  • Element Length: 2.5"
  • Overall Length: 3.25"
  • Design: Compact cone shape for efficient fit and airflow

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