Oil filler neck breather hose. Porsche 928 S4 / 928 GT / 928 GTS 1987-95 › 92810744502

OE Match oil filler neck breather hose for Porsche 928 S4, GT and GTS applications. Intended for replacement when the existing hose has deteriorated or developed a leak.

Fits

• Porsche 928 S4 1987-91.
• Porsche 928 GT 1989-91; 5.0L.
• Porsche 928 GTS 1992-95; 5.4L.

Diagram Ref No 53

What This Product Does
This hose forms the breather connection at the engine oil filler neck. Its condition and the sealing of its joints matter when investigating escaping oil vapour, oily deposits or air leakage around the filler assembly.

Functions

• Provides the oil filler neck breather connection.
• Maintains a sealed hose path when correctly fitted.

Technical Details

• Brand: OE Match.
• Product reference: 92810744502.
• Component: oil filler neck breather hose.
• Supplied applications include S4 and GT 5.0L models, plus GTS 5.4L models.

Symptoms of Fault

• Cracking or deterioration visible on the hose.
• Oily deposits surrounding the hose connections.
• Oil odour in the engine compartment.
• Hissing near the filler assembly or running irregularities associated with an air leak.

Why Replacement Matters
A damaged hose or leaking connection can allow vapour to escape and leave oily contamination around adjacent components. Renewing a confirmed faulty hose addresses that connection rather than replacing unrelated engine parts. Inspect adjoining fittings, clips and sealing surfaces during the repair, since deterioration elsewhere can leave the original symptoms unresolved.

FAQs

Does a difficult-to-remove oil cap prove this hose is faulty?
No. Abnormal crankcase vacuum can have other causes; inspect the hose and assess the ventilation system before selecting replacement parts.

What should be checked before fitting?
Compare the original reference, model and production year, then inspect the connecting fittings and any associated seals or clips.

Should nearby sealing components also be renewed?
Check their condition during dismantling and replace any that are hardened, damaged or leaking. Replacing the hose alone will not resolve a separate defective joint.

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Related, superseded, cross reference or alternative numbers for comparison.

92810744502

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