This OEM Aprilia Secondary Air Valve (SAS Solenoid) is a genuine factory replacement component designed to control secondary air injection into the exhaust system, supporting emissions performance and proper engine operation. Made from heat-resistant PA66-GF30 fiberglass-reinforced polyamide, the valve features dual air ports, an integrated mounting bracket, and a direct-fit electrical connector for simple installation. Technical Specifications - Part Type: Secondary Air Valve / SAS Solenoid Valve - OEM Part Number: 857181 - Manufacturer Cast Number: 45F 8183 - Material: PA66-GF30 fiberglass-reinforced polyamide Vehicle Compatibility Aprilia RSV4 Lineup - RSV4 1100: 2021-2026 - RSV4 1100 Factory: 2021-2026 Aprilia Tuono V4 Lineup - Tuono V4 1100: 2021-2026 - Tuono V4 1100 Factory: 2021-2026
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used anti rust
Worldwide shipping available
Express shipping available at checkout
Estimated delivery: 2-5 business days
All items are carefully packaged for safe transit
Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
Contact support for return authorization
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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