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99337504909/1KIT.2
Product Information
Product Information
Engine mount kit
The OE Match Engine Mount Kit is a complete replacement solution for Porsche 993 Coupe and Targa models, including Carrera 2, Carrera 4 (non-Cabrio), and Turbo variants. It includes two OE Match engine mounts along with genuine Porsche bolts and locknuts for proper installation.
SET OF 2,  with bolts, washers and nuts

Fits:
Porsche 993 (911) C2 / C2S 1994 - 1997 not Cabrio
Porsche 993 (911) C4 / C4S 1994 - 1997 not Cabrio
Porsche 993 (911) Turbo 1994 - 1996

Diagram ref no 21, 22 and 10

This complete kit is designed to replace both engine mounts and associated fixing hardware in one package, ensuring a correct and reliable installation.

The kit includes:
  •  2 × OE Match engine mounts (99337504909)
  •  4 × Genuine Porsche bolts (90037805501)
  •  2 × Genuine Porsche locknuts (99908421501)

The engine mounts are manufactured to OE specifications, providing the correct balance between support and vibration damping. Built using high-quality elastomer and metal construction, they are designed to withstand heat, load, and long-term use while maintaining consistent performance.

These mounts are suitable for both left and right positions (two required per vehicle) and replace earlier part numbers including 99337504905 and 99337504907.

Including genuine Porsche bolts and locknuts ensures proper torque retention and secure mounting - critical for maintaining drivetrain stability and avoiding issues caused by reused or stretched hardware.

This kit secures the engine to the chassis while isolating vibration and controlling engine movement during driving. It restores smooth operation, reduces noise, and improves overall drivetrain stability.

Replacing both mounts and fixings together ensures consistent performance and eliminates common causes of vibration and misalignment.

Function
  Supports and positions the engine within the chassis
  Absorbs vibration and reduces cabin noise
  Maintains correct drivetrain alignment
  Ensures secure installation with OE-spec hardware

This kit is essential for preserving both performance and comfort in classic Porsche models.

Over time, engine mounts degrade due to heat, load, and material fatigue. This can lead to excessive vibration, engine movement, and reduced driving comfort. Replacing both mounts along with new genuine hardware ensures proper installation, restores smooth engine operation, and protects surrounding drivetrain components from unnecessary stress.

When to replace
  Increased vibration felt in cabin or steering
  Clunking noises during acceleration or gear changes
  Visible wear or deterioration of mounts
  Engine movement or misalignment
  During engine or gearbox service



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

99337504909
99337504905
99337504907

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