Engine Mounts


- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Fits:
Porsche 991.1 Turbo / Turbo S MKI 2014>>2016
Porsche 991.2 Turbo / Turbo S / GT2 RS MKII 2016>>2019
Porsche 991.1 R / GT3 / GT3 RS MKI 2014>>2016
Porsche 991.2 GT3 / GT3 RS / Speedster 2016>>2019
Diagram Ref No 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A700830700
The product you are viewing cross references to these numbers





- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

Fits:
For cars with Dynamic Engine Mount PADM (I140)
Porsche 991 3.8L GT2 RS 2014-18.07.2018
Porsche 991 GT3 4.0L 05/2017 - 12/2020 - MA177 (engine type: DGG / DGGS / DGGB)
Porsche 991 GT3-RS 4.0L 01/2013 - 12/2020 (engine type: DNS)
Porsche 991 4.0L 01/2013 - 12/2020 - SPEEDSTER (engine type: DSD)
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99137505992
The product you are viewing cross references to these numbers





- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19

Fits:
For cars with Dynamic Engine Mount PADM (I140)
Porsche 991 R 4.0L 2016 (MA1.76)
Porsche 991 GT3 3.8L 2014-2017 (MA1.75)
Porsche 991 GT3 RS 4.0L 2014-17 (MA1.76)
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99137505993
The product you are viewing cross references to these numbers



Replacement Engine Mounts – Stability, Comfort, and Performance for Porsche Models
Engine mounts are the unsung heroes of your Porsche’s drivetrain, securing the engine to the chassis while absorbing vibration and maintaining precise alignment. Over time, these components can degrade from constant heat, torque, and road stress — affecting ride quality, handling, and drivetrain performance.
At Design911, we supply a wide selection of precision-engineered replacement engine mounts designed to the highest performance standards. Manufactured from high-grade rubber, polyurethane, or reinforced composite materials, these mounts provide the perfect balance of vibration isolation and structural support.
Whether you’re restoring a classic air-cooled model or
maintaining a modern 911, manufacturer-quality mounts ensure smooth
operation, improved comfort, and precise drivetrain alignment under all
conditions.
What Do Engine Mounts Do?
Engine mounts secure the engine and transmission to the vehicle’s chassis, minimising movement while isolating vibrations that would otherwise transfer into the cabin.
Core Functions:
- Securely
position the engine and transmission within the chassis.
- Absorb
vibration and torque movement, improving comfort and handling.
- Maintain
drivetrain alignment for optimal power transfer.
- Reduce stress on components such as hoses, wiring, and exhaust connections.
Well-fitted engine mounts preserve your Porsche’s distinctive refinement and handling precision, especially under high load or spirited driving.
Why Do Engine Mounts Fail?
Due to constant exposure to torque, heat, and vibration, engine mounts naturally degrade over time. Worn or broken mounts can lead to excessive engine movement, clunking noises, and vibration inside the cabin — symptoms that should never be ignored.
Common Causes of Engine Mount Failure Include:
- Material
fatigue from age or repeated heat cycling.
- Oil
contamination, softening rubber or polymer components.
- Excessive
engine torque or vibration, especially on tuned or high-mileage
engines.
- Corrosion
or cracking in metal brackets or hardware.
- Improper installation leading to uneven stress and premature wear.
Failing mounts compromise performance and comfort, causing drivetrain misalignment and potential damage to surrounding components.
Why Replace with Precision-Engineered Engine Mounts?
Upgrading to high-quality replacement engine mounts restores the stability, refinement, and handling balance your Porsche was designed for. Precision-engineered mounts ensure reliable load distribution, vibration damping, and improved driving comfort.
Key Benefits:
- Restores
drivetrain stability and precise engine positioning.
- Reduces
vibration and harshness, improving cabin comfort.
- Enhances
throttle response by limiting engine movement.
- Protects
critical components from stress and misalignment.
- Available
in rubber or performance polyurethane for tailored ride feel.
- Perfect fitment across Porsche models — air-cooled, turbocharged, or hybrid.
Whether you’re maintaining daily drivability or preparing for track use, replacement mounts deliver the durability and control your Porsche deserves.
Highlights:
- Precision-engineered
replacement engine mounts for all Porsche models.
- High-grade rubber, polyurethane, or reinforced construction.
- Improves handling, comfort, and vibration isolation.
- Direct-fit
compatibility for easy installation and perfect alignment.
- Ideal for rebuilds, performance upgrades, or preventive maintenance.
- Restores driving dynamics and comfort in classic and modern Porsches.