Feuling High-Performance Anti-Siphon Check Valve
Harley-Davidson Evolution, Twin Cam & Milwaukee-Eight V-Twins
Solves the frustrating wet-sumping issue where oil drains down into the engine crankcase while parked for weeks, preventing cold-start oil puking.

Includes currency-adjusted exchange rate, South African customs clearance, and insured door-to-door courier dispatch from Cape Town.
Engineering & Performance Characteristics
Low cracking pressure threshold guarantees zero oil pump feed restriction as soon as the starter motor spins the crankshaft.
Engineered Highlights & Performance Gains
- Prevents engine oil from slowly siphoning from the oil tank into the crankcase during storage
- Eliminates massive smoke clouds and oil blow-by on initial seasonal cold starts
- Precision-calibrated cracking pressure allows immediate oil flow upon engine startup
- Corrosion-resistant stainless steel body with heavy-duty Viton seal
Technical Specifications
- Brand & Origin
- Feuling Parts
- Product SKU / MPN
- FEU-9020 / 9020
- System Architecture
- Oil Return Anti-Siphon Check Valve
- Material Construction
- Stainless Steel & Viton Flouroelastomer Core
- Surface Finish
- Raw Polished Stainless Steel Body
- Sound Profile
- Not Applicable - Oiling Hardware
- ECU Tuning Status
- Factory Fuel Map Compatible
- Tuning Guidance
- Cures oil draining into crankcase during winter storage.
- Manufacturer Warranty
- 1-Year Limited Manufacturer Warranty
- Availability & Dispatch
- In Stock (Cape Town stock, 1-3 business days delivery)
Included in Box
- Anti-Siphon Valve Unit
- Inline Barbed Fittings
- Heavy Duty Clamps
- Installation Diagram
Verified Fitment List
Confirmed compatible models for Feuling High-Performance Anti-Siphon Check Valve. Roxstar verifies model, year, and frame clearances prior to dispatch.
Not sure if your specific model year, engine size, or aftermarket luggage brackets are compatible? Our Cape Town technicians confirm all dimensions before taking payment.
Submit your bike specs for verification →South African Courier Logistics
All orders are dispatched from our Cape Town hub via fully trackable courier services. We deliver directly to private residences, commercial addresses, or designated motorcycle performance workshops.
About Feuling Parts
Explore the full range of performance exhaust systems, tuning accessories, and precision engineered components from Feuling Parts.
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Feuling High-Performance Anti-Siphon Check Valve FAQs
Clear, evidence-backed answers regarding motorcycle exhaust fitment and supply.
How do I request fitment verification and pricing for Feuling High-Performance Anti-Siphon Check Valve?
Does this Feuling Parts system require ECU re-tuning?
What is the delivery timeline for delivery within South Africa?
What warranty coverage applies to FEU-9020?
Technical & Category Guides
- Feuling Parts Brand ShowcaseExplore all performance products and engineering heritage from Feuling Parts.
- Performance Products CatalogBrowse all 220+ performance exhausts, headers, and tuning upgrades.
- Fitment Confirmation GuideLearn how we verify motorcycle year, model, and sensor bung specs.
- Exhaust Tuning & Fuel MappingECU tuning, fuel management, and air-fuel ratio advisory.
Enquire on Feuling High-Performance Anti-Siphon Check Valve
Provide your motorcycle make, model, year, and displacement for direct fitment confirmation and an official written quote.
