K&N Racing Oil Filter for Aprilia RSV4 / RSV4 1100 Factory / R / RR / RF (2009–2020) – KN-138

Engineered for the demands of the track and built to survive the RSV4's screaming V4, the K&N KN-138 racing oil filter is the choice of riders who refuse to compromise on engine protection. Reinforced housing walls 50% thicker than standard, a wire-lock drilling machined into the 17 mm hex, and a synthetic filter medium capable of handling peak oil pressures make this the definitive service upgrade for Aprilia RSV4 owners chasing lap times or simply expecting more from their road machine.

Key Features

• 17 mm hex fitting allows installation and removal with standard hand tools — no filter wrench required, even in tight engine bays.
• Wire-lock drilling through the hex satisfies scrutineering requirements at circuits where safety wire is mandatory.
• Housing walls reinforced to 50% greater thickness than OEM-style filters, resisting deformation under extreme oil pressure and thermal cycling.
• Reinforced base plate with a double-rolled seam seal eliminates the risk of blow-off during high-revving track use.
• Pre-lubricated O-ring speeds up oil changes and ensures a leak-free, torque-correct seal every time.
• Synthetic filter medium delivers maximum filtration efficiency, removing contaminants without restricting flow at high rpm.
• Integrated pressure relief valve protects the lubrication circuit from over-pressure events, maintaining consistent oil delivery.

Built for the Track, Proven on the Road

The RSV4 platform — whether the base R, the track-focused RR, the semi-active RF or the 1100 Factory — places extraordinary demands on every service component. K&N designed the KN-138 specifically for these conditions: sustained high rpm, elevated operating temperatures, and the stop-start thermal stress of a trackday. The synthetic media maintains its filtration characteristics where paper elements can degrade, and the reinforced canister holds its geometry where lesser filters distort.

The wire-lock drilling is not merely a convenience feature — on many circuits it is a technical requirement. Having a filter that arrives ready for safety wire means one less obstacle between you and the pit lane exit. The pre-lubricated O-ring similarly reduces the margin for error during a hurried service interval, giving a clean, consistent seal without additional preparation.

Compatibility with Synthetic Oils and Race Fuel

The KN-138 is fully compatible with modern fully-synthetic engine oils and racing lubricant formulations. Whether the RSV4 is running road-legal synthetic or a dedicated race-spec oil, the filter medium and seals are formulated to perform without degradation, making this an equally strong choice for year-round road riding and intensive track programmes.

Fitment & Compatibility

The K&N KN-138 oil filter is a direct fitment for the following Aprilia models:

• Aprilia RSV4 R — 2009 to 2015
• Aprilia RSV4 RR — 2015 to 2020
• Aprilia RSV4 RF — 2015 to 2020
• Aprilia RSV4 1100 Factory — 2019 to 2020

Specifications