Rubber sleeves for air intake, SET OF 8. Porsche 928 1978-84  ❭  92811015801

Rubber sleeves for air intake.
An OE-Match air intake rubber sleeve set, consisting of eight identical sleeves, engineered to replicate the fit, function, and durability of the original Porsche intake connectors. It seals and connects intake system components.
SET OF 8

Fits:
Porsche 928 4.5L 1978 - 1979
* with Engine type: 2801

Porsche 928 4.7L 1983 - 1984
* with Engine type: 2819, 2820  * USA, Canada, Japan models Only

Diagram ref no 37

These sleeves connect and seal intake components, preventing unmetered air from entering the engine. By renewing all connection points at once, the set helps maintain proper air-fuel mixture control, smooth throttle response, and reliable engine operation.

Installed between intake air distributor and intake manifolds, the rubber sleeves provide flexible, airtight connections while absorbing vibration and minor engine movement. Working together as a complete set, they eliminate common vacuum leaks that can lead to rough idle, hesitation, or lean-running conditions in the Porsche 928.

Aging intake rubber can crack, harden, or split from heat and oil vapours, leading to air leaks and unstable engine running. Replacing worn sleeves restores proper sealing, helping maintain correct airflow measurement and drivability.

When to replace:
• Visible cracks, splits, or swelling in the rubber
• Loose fitment or air leaks at the coupling points
• Rough idle, hesitation, or lean-running symptoms (after inspection)
• During intake service or when replacing adjacent intake hoses/boots
• Excessive hardening or deterioration from heat/oil exposure

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92811015801

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