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Your Vehicle  //  Porsche  //  911 & 912 (1965-1989)  //  911 1978-1983 3.0L / SC
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99311071301/1
Product Information
Product Information

The OE Match intake manifold gasket for Porsche 964 / 993 seals a joint within the engine’s intake assembly, helping prevent unwanted air entering around the connection. 

Fits

  • Porsche 964 1989-94
  • Porsche 993 1995-98

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

    Diagram ref no 13

    This product supersedes Porsche's old part numbers: - 96411071300 - 96411071301

    Required Quantity

Six sealing rings are required for the applicable intake distributor assembly.

What Is This Part?

This is a sealing ring used in the intake manifold and intake distributor arrangement. The intake assembly carries air towards the engine’s cylinders, and its joints need to remain sealed so air follows the intended route. The ring seals the connection between adjoining intake components when correctly seated and assembled. It is relevant to intake leak repairs and work that involves separating the affected joint.

What Does This Part Do?

  • Seals the intake joint: Closes the gap between the mating intake components.
  • Restricts unwanted air entry: Helps prevent air bypassing the intended intake path through a leaking connection.
  • Supports mixture control: A sealed intake avoids an additional air leak that could interfere with fuelling.
  • Reseals a disturbed connection: Provides a replacement sealing interface when the existing ring is damaged or unsuitable for refitting.

    Why Replace This Part?

Age, repeated heating and cooling, or damage during removal can leave an intake sealing ring unable to seat correctly. A leaking joint can admit unwanted air and contribute to rough idling or hesitation. Replacement is appropriate when inspection or leak testing identifies a fault at this connection.

When the intake is dismantled, check the ring and its seating surfaces before reassembly. A new seal will not correct a cracked housing, damaged seating face or poorly aligned connection, so these should be addressed at the same time.

When to Replace This Part?

  • Visible damage: The ring is split, cut, distorted or has been pinched during fitting.
  • Poor seating: The existing ring no longer sits correctly in its intended position.
  • Confirmed leakage: An intake leak test identifies air escaping at the sealed joint.
  • Running concerns: Rough or hunting idle, hesitation or hissing prompts inspection of the intake seals, hoses and connections.
  • During dismantling: Replace a disturbed ring if its condition makes a dependable seal doubtful.

    Where Is This Part Fitted?

Location: Within the intake manifold and intake distributor assembly in the rear engine compartment, at the mating intake connection. Confirm the precise joint against the engine’s intake arrangement before dismantling.

FAQs

  • How can an intake leak be checked? A controlled smoke test can help locate leakage. Inspect adjoining hoses, sleeves and clamps as well as the gasket joint.
  • Why might a replacement gasket still leak? Contamination, damaged mating surfaces, incorrect seating or an unsuitable gasket can prevent the joint sealing. Follow the applicable engine assembly procedure.

    Product Summary
  • Product: Intake manifold gasket / sealing ring.
  • Brand: OE Match.
  • Purpose: Seals the intake connection against unwanted air leakage.


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

99311071301
18754
99311071301
96411071300
96411071301
40-77522-10
407752210
526.730

The product you are viewing cross references to these numbers
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