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PWK 40mm Flat Slide Carburetor for 500cc 650cc Dirt Bike ATV
PWK 40mm Flat Slide Carburetor for 500cc 650cc Dirt Bike ATV
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Product Overview
This PWK 40mm flat slide carburetor is designed for big-bore 500cc–650cc dirt bikes, ATVs, quads, UTVs, and high-output off-road builds that require serious airflow. The 40mm size is best suited for engines with enough displacement and modifications to benefit from a larger carburetor.
With its flat-slide structure, this carburetor helps provide a direct airflow path and fast fuel response for high-RPM riding. The anodized aluminum alloy body is made for heat, vibration, dust, and demanding riding conditions, making it a strong option for large-displacement performance builds.
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 | Big-bore airflow / high-RPM performance |
Specifications
| Specification | Details |
|---|---|
| Model | PWK 40mm |
| Carburetor Type | Flat-Slide Performance Carburetor |
| Intake Size | 40mm |
| Material | Aluminum alloy |
| Finish | Anodized surface |
| Recommended Engine Range | 500cc–650cc |
| Condition | New |
Key Features
- 40mm intake size for 500cc–650cc big-bore engines
- Designed for higher airflow demand
- Flat-slide design supports fast throttle response
- Anodized aluminum alloy body for durability
- Suitable for large-displacement off-road and ATV builds
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Fitment FAQ
Will this part fit my specific model and year?
As a general guide, 33mm–35mm sizes are better for 250cc–350cc engines, 36mm–38mm sizes are better for 400cc–500cc builds, and 40mm–42mm sizes are designed for 500cc–650cc big-bore engines. Final fitment depends on your engine setup and modifications.
Do I need to match the OEM part number?
No. This is an aftermarket PWK-style flat-slide performance carburetor, not a factory OEM direct replacement. Please compare physical dimensions, cable connection, choke style, intake/outlet size, and product photos before purchase.
What models or situations does this part not fit?
This carburetor may not fit stock or lightly modified engines that cannot support the selected intake size. It may also not fit machines with incompatible intake manifolds, throttle cables, choke systems, air filter sizes, or fuel line layouts.
What should I check before ordering?
Before ordering, please confirm your engine displacement, current carburetor size, intake manifold diameter, throttle cable style, choke type, fuel line layout, air filter fitment, and available installation space. This is a performance carburetor, so tuning and jetting adjustment may be required.