Applications
Carburetor Accessories
PWK / OKO / KSR 28–34mm 赛车化油器（50mm / 55mm 进气口）
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Fitment & Order
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OEM number
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Carburetor Accessories
PWK / OKO / KSR Carburetor Air Filter Horn Cup — 50mm & 55mm with Mesh Screen
PWK / OKO / KSR 化油器 50mm / 55mm 喇叭形风杯（带不锈钢滤网）
This velocity-stack air funnel / horn cup is designed for direct fitment on PWK, OKO, KSR and similar performance carburetors using 50mm or 55mm inlet ports. The bell-mouth horn geometry accelerates incoming airflow, improving throttle response and top-end breathing compared to a flat panel filter. An integrated fine-mesh stainless steel screen protects against ingestion of large particles while maintaining high airflow. Anodized aluminum construction keeps weight minimal while providing durability in track and off-road environments. Compatible with most 28–34mm carburetor bodies fitted with 50mm or 55mm air boot ports.
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Performance Highlights
- 50mm and 55mm inlet diameters — fits PWK, OKO, KSR and compatible carbs
- Bell-mouth velocity stack for improved airflow and throttle response
- Integrated stainless steel mesh particle screen
- Anodized aluminum — lightweight and corrosion resistant
- Direct replacement for OEM air boot on racing configurations
- Available in multiple anodized colors
B2B Inquiry Support
Get Quote and Supply Check
Fast ResponseWithin 24h on business days
MOQ50 pcs
Lead Time7–15 days
PackagingNeutral / OEM packaging
ShippingGlobal shipping support
Inlet Diameter50mm / 55mm
MaterialAnodized Aluminum + Stainless Mesh
TypeVelocity Stack / Horn Cup
CompatibilityPWK / OKO / KSR 28mm–34mm carburetors
Product Details
Clear Product Information for B2B Sourcing
This velocity-stack air funnel / horn cup is designed for direct fitment on PWK, OKO, KSR and similar performance carburetors using 50mm or 55mm inlet ports. The bell-mouth horn geometry accelerates incoming airflow, improving throttle response and top-end breathing compared to a flat panel filter. An integrated fine-mesh stainless steel screen protects against ingestion of large particles while maintaining high airflow. Anodized aluminum construction keeps weight minimal while providing durability in track and off-road environments. Compatible with most 28–34mm carburetor bodies fitted with 50mm or 55mm air boot ports.
Quality TestedOEM SupportBulk OrderFast InquiryGlobal Shipping
Technical Information
Specifications, Packaging and Quality Control
| Inlet Diameter | 50mm / 55mm |
| Material | Anodized Aluminum + Stainless Mesh |
| Type | Velocity Stack / Horn Cup |
| Compatibility | PWK / OKO / KSR 28mm–34mm carburetors |
| MOQ | 50 pcs |
| Lead Time | 7–15 days |
FAQ
Common Sourcing Questions
Is OEM or neutral packaging available?
Yes. Share your packaging, label and quantity requirements in the inquiry and our team will confirm the best option.
How do I confirm fitment?
Send the OEM number, engine model or product photos. We will help verify fitment against the specifications and application.
Can I request a quote or sample first?
Yes. Use Request Quote or Sample Request, then include the product and quantity details.
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