Original Porsche Part Genuine Porsche part 90111115703

Code: 90111115703

Genuine Porsche part

Original Porsche Part

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Exhaust gasket rear silencer. Porsche 911 1965-73 / 914/6

90111119300/1

Product Information

Exhaust gasket rear silencer.
This gasket is used to seal the joint between the rear silencer (muffler) and the heat exchanger flange on classic Porsche 911 and 914/6 models, ensuring a tight, leak-free connection in the exhaust system.
Sold each, Typically two gaskets are required when reinstalling the exhaust rear silencer.

Fits:
Porsche 911 1965 - 1973 (need 2 pcs)
Porsche 914/6 1970 - 1972 (need 2pcs)

Diagram ref no 8

• Application: Seals the connection between the rear silencer (muffler) and the adjacent exhaust pipe/heat exchanger flange on classic air-cooled Porsche engines.

Installed at the rear silencer interface of the exhaust system, this gasket ensures:
• A secure, leak-resistant seal between exhaust components
• Smooth exhaust gas passage without loss of power or noise
• Reduced risk of harmful fumes entering cabin areas.

It is made to withstand the high heat and vibration levels typical of classic Porsche exhaust systems, and matches the original Porsche design for long-lasting performance.

Over time, the original exhaust gaskets can crack, harden, or deteriorate due to heat cycles, vibration, and corrosion. A worn or ineffective gasket can lead to:
• Exhaust leaks at the silencer joint
• Increased exhaust noise
• Reduced engine efficiency and performance
• Fumes entering the undercarriage or cabin

Replacing exhaust gasket restores proper sealing, preserves exhaust flow integrity, reduces noise, and helps maintain emissions compliance on classic Porsche vehicles.

Replace the exhaust rear silencer gasket if you notice:
• Audible exhaust leaks near the silencer connection
• Increased cabin noise or exhaust rasp
• Visible gasket deterioration or rust
• During exhaust system removal or reinstallation

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Related, superseded, cross reference or alternative numbers for comparison.

90111119300

90111119300

The product you are viewing cross references to these numbers

Mounting Kit with 3 straps for rear exhaust. Porsche 911 1975-83

92201KIT

Product Information

Mounting Kit.
The OE Match Mounting Kit is a high-quality installation hardware kit designed to provide the essential fasteners and fittings required for the secure installation or replacement of compatible Porsche components. Manufactured to OE specifications for fit, strength and durability, this kit contains premium-quality mounting hardware to ensure reliable assembly, correct alignment and long-lasting performance.

Fits:
Porsche 911 SC/911 Carrera 2.7L-3.0L 08/1975-07/1983
Porsche 930 (not turbo) 2.7L-3.0L 08/1975-07/1983

Kit Includes:
3x Exhaust metal band
3x Lock nut, M8x1.25mm, cu. plated
3x Bolt, M8x12.5x40mm
1x Gasket for rear exhaust to intermediate exhaust

Produced from high-strength, corrosion-resistant materials, the components are engineered to withstand vibration, mechanical loads and harsh environmental conditions. Whether used during repairs, maintenance or restoration work, the mounting kit helps ensure professional-quality installation while replacing worn, damaged or corroded original hardware.

What This Product Does:

Provides the essential hardware required for component installation.
Secures replacement parts safely and correctly.
Maintains proper alignment of installed components.
Replaces worn, corroded or damaged original fixings.
Helps reduce vibration and component movement.
Supports reliable long-term installation.
Simplifies repair and maintenance work.
Forms an essential part of a professional component replacement.

Symptoms Of Wear Or Failure:

Loose or misaligned components.
Excessive vibration or rattling.
Corroded, seized or broken fasteners.
Missing mounting hardware.
Difficulty tightening or securing components.
Damaged or stripped threads.
Premature wear caused by component movement.
Increased noise from loosely mounted parts.
Visible corrosion or deterioration of fixings.
Reduced reliability of installed components.

Why Replacement Matters:

Mounting hardware is continually exposed to vibration, moisture, road salt, heat and mechanical stress. Over time, fasteners can corrode, stretch, seize or lose their clamping force, reducing their ability to secure components correctly.
Reusing old or damaged hardware can lead to poor fitment, unwanted movement, increased vibration and premature wear of replacement parts. In some cases, weakened fixings may fail completely, affecting the reliability and safety of the installed component.
Replacing the mounting hardware whenever major components are serviced or replaced helps ensure secure installation and long-term durability. The OE Match Mounting Kit provides factory-style fitment, corrosion-resistant construction and dependable performance, making it the ideal choice for high-quality Porsche repairs, restorations and preventative maintenance.

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

92201KIT

90111115704

The product you are viewing cross references to these numbers

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Original Porsche Part Genuine Porsche part 90111115703