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boot Genuine Porsche part 64420117700

Code: 64420117700

Genuine Porsche part

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The product code 64420117700 was also found on these diagrams

201-005 - sleeve

Fuel System, Exhaust System 356 (1950-1965)

Fuel tank 356B-T6 / 356C 1960-1965

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Fuel filler neck sleeve. Porsche 356

64420117700/1

Product Information

Fuel Filler Neck Sleeve.

The OE Match Fuel Filler Neck Sleeve is a replacement rubber collar for the fuel filler assembly of late Porsche 356 B T6 and Porsche 356 C models.

Fits:

Porsche 356 B T6 / 356 C 1.6 08/62-12/65

Diagram Ref No 13

Positioned around the fuel filler neck, the sleeve helps provide a neat, protected interface between the filler neck and the surrounding body and fuel-tank installation. Its flexible construction cushions the filler neck, closes the surrounding gap and helps protect adjacent components from contact, dirt and moisture.

On a classic Porsche, the original rubber component may have been exposed to decades of fuel vapour, temperature changes, moisture and ageing. Over time, the material can become hard, cracked, shrunken or brittle, making replacement worthwhile during fuel-system refurbishment or restoration.

What This Product Does:

Fits around the fuel filler neck.
Provides a protective collar between the filler neck and surrounding structure.
Helps close the gap around the filler-neck installation.
Cushions the filler neck against contact with adjacent components.
Helps reduce unwanted movement and vibration around the filler area.
Helps limit dirt and moisture entering the surrounding filler-neck area.
Provides a clean, factory-style finish to the fuel filler installation.
Replaces an original sleeve that has hardened, cracked, split or deteriorated.
Supports accurate restoration of the Porsche 356 fuel-filler assembly.

The component is commonly catalogued as a rubber filler neck collar, confirming its role around the filler-neck assembly rather than as the main fuel cap seal itself.

Symptoms Of Wear Or Failure:
Because this is a rubber protective and sealing component rather than a mechanical moving part, deterioration is normally visible.

Common signs include:

Cracks in the rubber.
Splitting around the circumference.
Rubber becoming hard or brittle.
Shrinkage with age.
Sleeve becoming loose around the filler neck.
Missing sections of rubber.
Distortion or deformation.
Surface deterioration caused by age or fuel exposure.
Sleeve no longer sitting correctly around the filler neck.
Excessive movement around the filler-neck opening.
Dirt or moisture collecting around the filler installation.
Chafing or contact between the filler neck and surrounding components.
An untidy or incomplete appearance during restoration.

If fuel odour or liquid fuel leakage is present, the filler cap seal, neck, tank connections and surrounding fuel-system components should also be inspected, as the sleeve itself is not the primary fuel cap sealing component.

Why Replacement Matters:
Rubber components naturally deteriorate with age, particularly when exposed to fuel vapour, temperature changes and environmental contamination.

As the original sleeve hardens or shrinks, it may no longer fit closely around the filler neck. This can reduce its ability to cushion and protect the installation and may allow dirt and moisture to collect in the surrounding area.

Replacing a deteriorated sleeve helps:

Restore correct fit around the filler neck.
Protect the filler neck from unwanted contact and chafing.
Reduce movement and vibration.
Keep the surrounding area cleaner.
Limit moisture and debris entering gaps around the filler assembly.
Restore the original appearance of the fuel filler installation.
Complete a proper fuel-tank or body restoration.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

64420117700

64420117700

The product you are viewing cross references to these numbers

3 3 3

Fuel filler neck flange. Porsche 356

64420117300/1

Product Information

Fuel Filler Neck Flange

The OE Match Fuel Filler Neck Flange is a replacement fuel system component for compatible Porsche 356 models.

Fits:

Porsche 356B 1959-63
Porsche 356C 1963-65

Diagram ref no 7

Designed for the fuel filler neck assembly, this flange provides a mounting and connection point within the original fuel filling arrangement.

Over time, original components can become corroded, distorted or damaged, making replacement important during fuel system repairs or classic Porsche restoration.

What Does It Do?

The fuel filler neck flange forms part of the connection between the filler neck and its associated mounting components, helping maintain a secure and correctly positioned fuel filling assembly.

Why Does It Fail?

Common causes include:

Corrosion and moisture exposure
Age-related deterioration
Damage during fuel tank removal
Distortion from previous repairs
General wear over time

When Should It Be Replaced?

Replace the flange if it becomes corroded, cracked, distorted or damaged.

Replacement is also recommended during fuel tank refurbishment or when restoring the original fuel filler assembly.

Checks & Diagnosis

Inspect the flange for corrosion, damage and loose mounting points. Check the surrounding filler neck, connections and seals for deterioration or signs of fuel leakage.

Installation Notes

Inspect the surrounding fuel filler components before installation. Ensure the flange is securely fitted and all associated seals and connections are in good condition.

Check for fuel leaks before returning the vehicle to service.

Porsche 356 Fuel Filler Necks & Fuel Tank Restoration Parts

The Porsche 356 fuel filling system relies on correctly fitted filler neck components to maintain secure connections and reliable operation.

This OE Match fuel filler neck flange provides a replacement for compatible Porsche 356 models, helping restore the original fuel filler arrangement.

Design911 supplies Porsche 356 fuel filler necks, fuel tank components, seals and associated classic Porsche restoration parts.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

64420117300

64420117300

The product you are viewing cross references to these numbers

3 3 3

Fuel filler neck gasket. Porsche 356 B-T6 / 356 C

64420117500/1

Product Information

This OE Match gasket fits the fuel filler neck assembly on Porsche 356 B-T6 and 356 C models. The supplied parts diagram specifies that reworking is necessary when fitting.

Fits

Porsche 356 B-T6 / C 1960-65

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref no 8

What This Product Does

The gasket provides a sealing interface within the fuel filler neck assembly. It is a separate component from the filler cap, neck sleeve and protective flap.

Functions

Provides the gasket interface at the filler neck.
Replaces a worn or damaged gasket during filler assembly repairs or restoration.

Technical Details

Part reference: 64420117500.
Brand: OE Match.
Supplied diagram application: fuel tank assembly, 356B-T6 / 356C, 1960–1965.
Installation requirement: reworking is necessary. Check the required adjustment against the existing assembly before fitting.

Symptoms of Fault

Inspect the gasket and surrounding filler components if there is visible deterioration, staining or a fuel odour near the filler. These signs do not identify the gasket alone as the cause; the cap seal, neck and adjoining connections also need checking.

Why Replacement Matters

Renewing a damaged gasket helps restore the intended sealing interface during maintenance or restoration. Check the condition of the mating surfaces and neighbouring components before assembly, and account for the specified reworking rather than assuming an unmodified fit.

FAQs

Does this replace the fuel cap seal?
No. This product is identified as the filler neck gasket, not the separate cap sealing ring.

Can it be fitted without modification?
The supplied diagram states that reworking is necessary. The extent of that work is not specified.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

64420117500

64420117500

The product you are viewing cross references to these numbers

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boot Genuine Porsche part 64420117700