PWK 42mm Flat Slide Carburetor for 500cc 650cc Big Bore ATV

Product Overview

This PWK 42mm flat slide carburetor is the maximum-flow option in this series, designed for 500cc–650cc big-bore dirt bikes, ATVs, quads, UTVs, and high-performance off-road builds. It is best suited for engines that need high airflow at upper RPM and have supporting modifications to match the larger carburetor size.

The 42mm size is not intended for small or mildly modified engines. It works best when the intake, exhaust, cam, displacement, and tuning setup can support the additional airflow. Its flat-slide design helps reduce intake restriction, while the anodized aluminum alloy construction supports demanding riding environments.

Product Compatibility

Category	Fitment
Engine Range	500cc–650cc big-bore engines
Vehicle Type	Dirt Bike, ATV, Quad, UTV, Performance Scooter
Carburetor Type	PWK Flat-Slide
Best Use	Maximum airflow / big-bore performance

Specifications

Specification	Details
Model	PWK 42mm
Carburetor Type	Flat-Slide Performance Carburetor
Intake Size	42mm
Material	Aluminum alloy
Finish	Anodized surface
Recommended Engine Range	500cc–650cc
Condition	New

Key Features

• 42mm maximum-flow size for big-bore engines
• Designed for 500cc–650cc high-output builds
• Flat-slide design reduces airflow restriction
• Anodized alloy body improves durability
• Best for modified engines with proper tuning support