Vaico V20-3973 Engine Air Intake Hose

Engine Air Intake Hose for BMW Turbo Applications

VAICO V20-3973 is an engine air intake hose for select BMW turbocharged applications. It is a direct-fit aftermarket replacement for vehicles originally equipped with OE part number 13717599294, including BMW 135i, 135is, 335i, and 335i xDrive models from 2011-2013.

Key Features

• Engine air intake hose for the fuel injection and air delivery system
• Aftermarket replacement for OE number 13717599294
• Fits 2011-2013 BMW 135i, 2013 BMW 135is, 2011-2013 BMW 335i, and 2011-2013 BMW 335i xDrive
• VAICO part number V20-3973 for catalog and service matching
• Built for BMW intake routing where the factory hose has cracked, split, or lost sealing integrity

Detailed Description

VAICO V20-3973 is an engine air intake hose used in BMW air and fuel delivery systems to route intake air between connected components. This part cross-references OE number 13717599294 for the same application. It is a practical replacement choice for BMW 135i, BMW 135is, BMW 335i, and BMW 335i xDrive models when the original intake hose no longer maintains proper airflow or fit.

Common Issues This Part Can Address

• Cracked or split intake hose material
• Air leaks in the intake tract
• Rough idle caused by unmetered air entering the system
• Loss of throttle response from restricted or leaking intake routing
• Check engine light concerns related to intake sealing faults

Installation Notes and Tips

Verify OE number 13717599294 and confirm vehicle fitment before ordering. Inspect adjoining clamps, seals, and intake connections during replacement so the new hose seats correctly and maintains a secure seal. Fitment includes 2011-2013 BMW 135i, 2013 BMW 135is, 2011-2013 BMW 335i, and 2011-2013 BMW 335i xDrive.

Quality Assurance

VAICO supplies aftermarket replacement parts for European vehicle applications. V20-3973 is cataloged as an OE-referenced replacement for BMW intake service, with fitment matched to the listed models and OE number.