Triumph 955i Vacuum Hose Set (Silicone Replacement)

Product Overview

Triumph 955i vacuum hose set for fuel-injected triple engines (includes Tiger 885i – T709).

A replacement silicone vacuum hose set compatible with Triumph models using the 955i & 885i fuel-injected triple engine.

Why This Part Exists

Vacuum hoses play a critical role in throttle body balance, idle control, and overall engine behaviour. As original rubber hoses age, they can harden, crack and leak, leading to poor starting, unstable idle, or rough running.

Replacing these hoses is a simple but important maintenance task on ageing fuel-injected triples, helping ensure consistent engine performance and correct vacuum control.

Common Symptoms of Failing Vacuum Hoses

Ageing vacuum hoses don’t usually fail outright — instead they cause subtle, frustrating issues that are often misdiagnosed as fueling or sensor problems.

Typical symptoms include:

• unstable or wandering idle
• hesitation or uneven throttle response
• difficult starting, especially when cold

Because these faults develop gradually, they’re easy to overlook and often mistaken for other issues within the fuel or ignition system.

Design and Manufacture

Manufactured from quality AP automotive silicone hose for improved resistance to heat and ageing compared to original rubber components.

Each hose is cut to the correct length to ensure proper routing and avoid kinks, making the set ready to fit without modification.

Fitment & Compatibility

Compatible with Triumph models using the 955i fuel-injected triple engine, including:

• Triumph Tiger 885i 955i
• May fit other 955i triple engines

Designed to replace ageing original vacuum hoses in standard 955i throttle body configurations.

During Tank Removal

Access to the throttle body vacuum hoses requires fuel tank removal. While the tank is off, consider inspecting the fuel tank mounts for signs of compression or degradation.

See our:
Triumph Fuel Tank Mounts (T2400603 Replacement)

Aftermarket replacement part – inspect regularly as part of routine maintenance.

Manufactured in Great Britain by Tiger Forge Designs.

Part of our Triumph Tiger 885i & 955i parts range.