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PWK 38mm Flat Slide Carburetor for 400cc 500cc Dirt Bike ATV
PWK 38mm Flat Slide Carburetor for 400cc 500cc Dirt Bike ATV
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Product Overview
This PWK 38mm flat slide carburetor is built for 400cc–500cc high-performance dirt bikes, ATVs, quads, UTVs, and racing off-road machines. It is a common choice for riders who want stronger airflow, quicker fuel response, and improved power delivery on larger modified engines.
Compared with smaller sizes, the 38mm version is better suited for engines that can use more air at higher RPM. It is especially useful for aggressive riding, racing quads, and high-output builds where throttle response and top-end breathing are important.
Product Compatibility
| Category | Fitment |
|---|---|
| Engine Range | 400cc–500cc performance engines |
| Vehicle Type | Dirt Bike, ATV, Quad, UTV, Pit Bike, Performance Scooter |
| Carburetor Type | PWK Flat-Slide |
| Best Use | Racing response / high-output airflow |
Specifications
| Specification | Details |
|---|---|
| Model | PWK 38mm |
| Carburetor Type | Flat-Slide Performance Carburetor |
| Intake Size | 38mm |
| Material | Aluminum alloy |
| Finish | Anodized surface |
| Recommended Engine Range | 400cc–500cc |
| Condition | New |
Key Features
- 38mm size for 400cc–500cc high-output engines
- Supports stronger airflow for racing and aggressive riding
- Flat-slide design helps improve throttle response
- Anodized alloy body resists corrosion and wear
- Suitable for dirt bikes, ATVs, quads, UTVs, and performance 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.