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- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811015801
The product you are viewing cross references to these numbers
This kit is comprised of the following items: