Rubber Sleeve. Porsche 986 Boxster / Boxster S 1997–04  ›  99611068601

Rubber Sleeve
Sold each - 2 required per car

Fits

• Porsche Boxster 986 2.5L 1997–99
• Porsche Boxster 986 2.7L 1999–02
• Porsche Boxster S 986 3.2L 1999–02
• Porsche Boxster 986 2.7L 2003–04
• Porsche Boxster S 986 3.2L 2003–04

Diagram Ref No 28

What This Product Does

The sleeve creates a flexible junction in the intake distributor assembly. It allows limited movement between connected parts while supporting the sealed passage of intake air.

Functions

• Joins components within the intake distributor
• Maintains a sealed intake connection
• Allows for normal vibration and engine movement
• Helps prevent unwanted air from entering at the joint

Technical Details

• Part type: rubber sleeve
• Manufacturer: Porsche
• Part number: 99611068601
• Assembly location: intake distributor
• Diagram engine identifiers: M96.21/22 and M96.23/24
• Quantity indicated by the diagram: 2

Symptoms of Fault

• Cracks or splits that become visible when the sleeve is flexed
• Rubber that has hardened or become distorted with age
• A hissing sound around the intake system
• Unstable or rough engine idle
• Hesitation when accelerating
• Lean-mixture or airflow-related diagnostic faults
• Air leakage found during smoke testing

Why Replacement Matters

Repeated heat cycles, oil vapour and vibration can gradually deteriorate an intake sleeve. Replacing a leaking or damaged component helps re-establish the sealed connection needed by the intake distributor. The surrounding clamps, joints and adjacent rubber parts should also be examined while the assembly is accessible.

FAQs

• How can the sleeve be inspected?
  Check its surface while gently flexing the rubber, as fine splits may only open under movement. A smoke test can be used to identify less obvious intake leaks.
• Can a damaged sleeve cause poor running?
  A leak at an intake joint may introduce unmetered air, which can contribute to an uneven idle, hesitation or mixture-related fault codes.
• How many sleeves does the diagram specify?
  The intake distributor diagram indicates a quantity of two for part 99611068601.

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

Related reference numbers
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99611068601

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