Universal Rubber Grommet - 30mm OD X 6mm-18mm ID For 23.5mm Hole

This versatile rubber grommet is widely used across the Volkswagen and Porsche range for protecting hoses, pipes, and wiring as they pass through body panels, tinware, or bulkheads. It is commonly fitted to fuel lines, brake lines, brake servo vacuum hoses, wiring looms, sunroof drain tubes, and hydraulic hoses.

The primary function of this grommet is to prevent chafing and damage caused by sharp metal edges while also helping to seal the opening. By cushioning and supporting the line or loom, it reduces wear, vibration, and the risk of leaks or electrical faults. This makes it an essential safety and reliability component, despite its small size.

Manufactured from durable rubber, this grommet remains flexible while resisting ageing, heat, and exposure to fuel vapour and road grime. Depending on supplier availability, it is supplied as either a Genuine VW part or a top-quality equivalent, both offering excellent fit and long service life.

With an outside diameter of 30mm and designed to fit a 23.5mm hole, the grommet can accommodate inner diameters from approximately 6mm up to 18mm, making it suitable for a wide range of applications across different models and systems.

This grommet is ideal for restorations, repairs, and preventative maintenance where original seals are missing, hardened, or damaged.

Fitting Specifications:

• Outside diameter: 30mm

• Inside diameter range: 6mm – 18mm

• Hole size required: 23.5mm

• Thickness / depth: 6.5mm

Quantity:

• Sold individually

Common usage examples:

• Fuel lines through body or engine tinware

• Brake and hydraulic lines

• Brake servo vacuum hoses

• Wiring looms through body panels

• Sunroof drain tubes

• Washer bottle and charcoal canister hoses

Applications

• VW Beetle: 1949 – 1979

• VW Beetle Cabrio: 1950 – 1979

• VW Baywindow Van (T2): 1968 – 1979

• VW Type 25 / T3: 1979 – 1992

• VW Type 3: 1961 – 1973

• VW Karmann Ghia: 1955 – 1974

• VW Trekker: 1968 – 1983

• VW Buggy & Baja: 1949 – 1979

• VW Transporter T4: 1991 – 2003

• VW Golf Mk4: 2002 – 2004

• Porsche 911 / 930: 1974 – 1983

• Porsche 914: 1970 – 1976

• Porsche 924: 1976 – 1988

• Porsche 928: 1978 – 1995

• Porsche 944: 1982 – 1991