Twin air of 2 bar Radiator capRef : TA00169A / 1066184

The TWIN AIR radiator cap 2 bar (manufacturer ref. 177903) is a spare part designed for off-road motorcycles. It is intended to replace an original cap and features a nominal pressure rating of 2 bar suitable for cooling circuits that require this setting. Ideal for the motocross environment, it is aimed at riders who wish to maintain the proper functioning of their machine's cooling system.

• Nominal pressure: 2 bar — suitable for systems designed for this value.
• Usage: replacement part for motocross and off-road motorcycle radiators (subject to compatibility).
• Brand: TWIN AIR, a recognised specialist in motorcycle accessories.
• Reference: 177903 — useful for checking compatibility with your model.

Examples of models often cited for this type of application: YAMAHA YZ 450 F (2026), SUZUKI RM‑Z 450 (2026) and KAWASAKI KX 450 (2026). Before installation, check the nominal pressure indicated by your motorcycle's manufacturer and the overall condition of the circuit (hoses, expansion tank, coolant). This cap is part of the regular maintenance of the radiator and is one of the parts to check when preparing for a motocross season or intensive outings on terrain.