K&N Racing Oil Filter Suzuki GSX-R 600/750 (2003–2017) KN-138

Built for the rigours of competitive racing, the K&N KN-138 Racing Oil Filter delivers certified track-ready protection for Suzuki GSX-R 600 and GSX-R 750 models spanning 2003 to 2017. Its safety wire-drilled 17 mm hex body meets scrutineering requirements straight out of the box, while a 50% thicker steel canister ensures the filter will never burst under the extreme pressures of hard circuit use.

Key Features

• Safety wire port integrated into the 17 mm hex: satisfies track scrutineering requirements without modification, keeping you on the grid and not in the pits.
• No specialist tools required: the oversized hex accepts standard hand tools for fast, confident filter changes between sessions.
• Pre-installed O-ring accelerates fitment and ensures a leak-free seal every time.
• Anti-drain-back valve prevents oil from draining out of the filter at shutdown, eliminating dry starts and protecting bearings on every cold start.
• New overpressure relief valve maintains consistent oil pressure and prevents pressure spikes from starving or flooding critical engine components.
• Reinforced canister walls — 50% thicker than standard — combined with a heavy-duty base plate provide structural integrity under sustained racing loads.
• High flow rate with excellent filtration efficiency removes contaminants and soot without restricting oil supply, supporting peak engine output throughout a race.
• Fully compatible with the latest fully synthetic racing oils and race fuels.

Purpose-Built Racing Construction

K&N engineered the KN-138 specifically for applications where a standard road filter is simply not enough. The thickened steel shell resists deformation under sustained high-RPM oil pressure, while the reinforced base plate prevents distortion during removal — a real-world concern when torque is applied quickly in the paddock. The anti-drain-back valve means that when you restart between qualifying and the race, your engine receives pressurised oil within fractions of a second rather than running momentarily dry.

Safety Wire Ready

Many circuits mandate safety-wired oil filters as a condition of entry. The KN-138's dedicated safety wire hole through the 17 mm hex allows a wire to be threaded and twisted in the standard manner, satisfying technical regulations without any drilling or modification. This single feature alone makes the KN-138 the correct choice over an equivalent road filter for any serious track day or race entry.

Fitment & Compatibility

The K&N KN-138 Racing Oil Filter fits the following Suzuki models:

• Suzuki GSX-R 600 — 2003 to 2017
• Suzuki GSX-R 750 — 2003 to 2017

Specifications