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Engine mounts

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DISPLAYING 1 to 8 (of 8 products)
3609309625KIT
Product Information
Product Information
Performance engine mounts (PAIR). Included two M12 x 1.75 Nuts
Includes separate inserts for varying densities

Includes all 3 inserts for varying densities
Shore ratings 65A Street
Shore ratings 75A Fast Road (including in engine mounts)
Shore ratings 85A Track

Fits:
Porsche 964 C2 / C4 / RS / Turbo
Porsche 993 C2 / C4 / RS / Turbo
Porsche 996 C2, C4, C4S, Turbo, GT2, GT3
Porsche 997 C2, C2s, C4, C4s, Turbo, GT2, GT3

Replacing your factory engine mounts with these performance semi-solid mounts will dramatically decrease engine movement which then will result in better acceleration and handling of your Porsche.

CNC machined mounts with PU bushes are absolute must have for any car on track or on the street. Very easy to replace by experienced DIYers.

For 911 & Porsche world article / fitment guide pdf please CLICK HERE

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Related, superseded, cross reference or alternative numbers for comparison.

3609309625KIT
993375049
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
997375049
996375049
3609309624
3609309625
3609309624

The product you are viewing cross references to these numbers
DSM-EMT-KIT
Product Information
Product Information
Upgrade your Porsche's performance with Demon Speed’s GT3 Cup Style Solid Engine Mounts. These mounts provide superior engine stability, sharper handling, and improved power transfer for track enthusiasts and professional racers.

demonspeed

Fits:
Porsche 996 GT3 Cup Car 
Porsche 997 GT3 Cup Car 

--Only in conjunction with Demon Speed's RSR Engine Blade (see below)--
Porsche 996 Turbo/GT2 2001-05
Porsche 996 GT3/GT3 RS 1999-05
Porsche 997.1 Turbo 2007-09
Porsche 997 GT2/GT2 RS 2007-12
Porsche 997 GT3/GT3 RS 2007-09

These engine mounts are specifically designed as a direct replacement for 996/997 GT3 Cup Cars, though can be fitted to 996/997 Turbo and road-legal GT3 models when paired with Demon Speed's RSR Engine Blade. When adding these mounts to your basket, you will be given the option to include this add-on with your purchase. 

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Related, superseded, cross reference or alternative numbers for comparison.

DSM-EMT-KIT
99337504907
99337504909
99637504990
99637504991
99737504905
99737504907
99737504906
99737504908
99737504991
99634512290
99634512190
99637512190
99637512290

The product you are viewing cross references to these numbers
Special Offer
3609309625
Product Information
Product Information
Performance engine mounts (PAIR). Included two M12 x 1.75 Nuts

rohler

Separate inserts available for varying densities
Shore ratings 65A Street (available separately)
Shore ratings 75A Fast Road (included in engine mounts)
Shore ratings 85A Track (available separately)

Fits:
Porsche 964 C2 / C4 / RS / Turbo
Porsche 993 C2 / C4 / RS / Turbo
Porsche 996 C2, C4, C4S, Turbo, GT2, GT3
Porsche 997 C2, C2s, C4, C4s, Turbo, GT2, GT3

Please note: the threads needs to be treated with loctite before installation (not sold with the product).

Replacing your factory engine mounts with these performance semi-solid mounts will dramatically decrease engine movement which then will result in better acceleration and handling of your Porsche.

CNC machined mounts with PU bushes are absolute must have for any car on track or on the street. Very easy to replace by experienced DIYers.

For 911 & Porsche world article / fitment guide pdf please CLICK HERE

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

3609309625
993375049
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
997375049
996375049
3609309624
3609309625
3609309624

The product you are viewing cross references to these numbers
M18
Product Information
Product Information
Tuneable Semi-Solid Engine Mount.
SET OF 2 Includes three pairs of inserts in varying densities

rennline 


Fits:
Porsche 964/993/996/997

The Rennline Tune-able Engine Mount for the 964, 993, 996, and 997 offers the ultimate in adjust ability for your car. Replacing your compliant factory mounts will decrease engine movement resulting in better acceleration, handling and significantly increased shifter feel. This is the ultimate solution for almost any car, and allows you to tune our mounts for the way you drive. Our mounts are CNC machined from billet aluminium and include three pairs of inserts in varying densities. Tune your mounts by using the softer inserts to reduce engine slop and avoid missed shifts in your street car, or utilise the stiffest inserts to get the most from a more focused track car. You can even mix and match, giving you 9 possible combinations to let you dial in our mount to your specifications. Here at Rennline we know you want your Porsche to be flawless, and that is why we are Driven to Improve Excellence.



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

M18
993375049
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
997375049
996375049

The product you are viewing cross references to these numbers
Special Offer
624
Product Information
Product Information
RSS Performance engine mounts (PAIR).

rss

Fits:

Porsche 996 C2, C4, C4S, Turbo, GT2, GT3
Porsche 997 C2, C2s, C4, C4s, Turbo, GT2, GT3

With factory hydraulic engine mounts, the drive train will move independent of the chassis during acceleration and cornering loads. This movement can upset the balance of the vehicle and create negative handling effects.

RSS Tarmac Series Performance Engine Mounts minimise these effects by utilising specialised polyurethane bushings which offer a firmer, more direct driving feel with optimum feedback. This upgrade will not adversely effect ride quality or cause knock sensor issues commonly associated with solid engine mounts.

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

624
624
993375049
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
997375049
996375049

The product you are viewing cross references to these numbers
Special Offer
M08
Product Information
Product Information
Rennline Solid Motor / Engine Mounts Pair. ALUMINIUM.
SET OF 2

rennline

Fits:
Porsche 964
Porsche 993
Porsche 996
Porsche 997

Solid engine mounts are a smart upgrade to any track or aggressive street car, and were installed on Porsche factory race cars. Stock mounts are made of compliant rubber, and contribute to imprecise shifting and inferior throttle response. Solid mounts create slightly more interior vibration than rubber mounts, but securely connect the engine and transmission assembly to the car's unibody, creating a crisper throttle response and shifter feel. Rennline's solid mounts are CNC machined from 6061 aluminum for strength and light weight, and come as a pair with new Grade 8 mounting hardware. Sold as a set of (2)

Motorsport Product

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

M08
993375049
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
997375049
996375049

The product you are viewing cross references to these numbers
Special Offer
3609309665
Product Information
Product Information
Engine mount bush kit
Shore rating 65A for 3609309625 performance engine mounts

rohler

Fits:
Porsche 996 C2, C4, C4S, Turbo, GT2, GT3
Porsche 997 C2, C2s, C4, C4s, Turbo, GT2, GT3

Shore ratings 65A Street
Shore ratings 75A Fast Road (including in engine mounts)
Shore ratings 85A Track


For 911 & Porsche world article / fitment guide pdf please CLICK HERE

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

3609309665
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
3609309624
3609309625
3609309624

The product you are viewing cross references to these numbers
Special Offer
3609309685
Product Information
Product Information
Engine mount bush kit
Shore rating 85A for 3609309625 performance engine mounts

rohler

Fits:
Porsche 996 C2, C4, C4S, Turbo, GT2, GT3
Porsche 997 C2, C2s, C4, C4s, Turbo, GT2, GT3

Shore ratings 65A Street
Shore ratings 75A Fast Road (including in engine mounts)
Shore ratings 85A Track


For 911 & Porsche world article / fitment guide pdf please CLICK HERE

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

3609309685
99337504908
96437504381
99337504909
96537504900
96537505000
99637504991
99737504908
99737504907
3609309624
3609309625
3609309624

The product you are viewing cross references to these numbers
DISPLAYING 1 to 8 (of 8 products)
Also found on these pages
About Engine mounts

Porsche Engine Mounts

Enhance your Porsche’s driving experience with the right engine mounts. At Design911, we supply standard replacement and performance-focused engine mounts for Porsche models, helping you balance refinement, control and durability for road, fast-road or motorsport use.

Why do Porsche Engine Mounts matter?

Engine mounts support and locate the engine in your Porsche while isolating vibration from the cabin. As they age, the rubber or other materials can soften, split or sag, allowing more movement than intended. This can lead to increased vibration, driveline clunks and a less precise, less refined feel from the car. Choosing suitable replacement or performance mounts helps keep the drivetrain controlled and the car feeling tight and well looked after.

  • Maintain correct engine position and support within the chassis
  • Help control vibration and harshness transmitted into the cabin
  • Reduce unwanted engine rock that can stress exhausts, hoses and joints
  • Allow you to tune the balance between comfort and a more direct, connected feel

Common options & kits

Individual replacement mounts
Specific engine mounts supplied individually so you can address a particular failed or tired mount without changing the entire set.

  • Useful when only one mount is clearly worn or damaged
  • Lets you focus on problem areas first
  • Can be combined with existing good mounts to spread work over time

Matched pairs or axle sets
Mounts supplied as pairs or sets intended to be replaced together, so left and right (or multiple) mounts are renewed at the same time.

  • Helps keep engine support and movement consistent side to side
  • Reduces the risk of one old mount accelerating wear in a new mount
  • A sensible approach when original mounts are of similar age

Performance and motorsport mounts
Uprated mounts designed to limit drivetrain movement more than standard parts, often using stiffer materials such as polyurethane or metal components.

  • Intended to reduce drivetrain wind-up and slack for a more direct feel
  • Can support fast-road or motorsport-focused Porsche builds
  • Typically increase noise and vibration compared with OE-style mounts, so choice should reflect how the car is used

Brands available in this category

For this category we stock a wide choice of trusted brands for Porsche models. You can also browse and filter by brand on this page to focus on your preferred manufacturers.

  • 9products – Precision-engineered Porsche performance parts including engine and transmission mounts, often aimed at club motorsport and track-day builds, using high-grade aluminium and motorsport hardware.
  • Demon Speed – Track-focused components for aggressive setups where owners want a more focused feel; suitable parts may increase noise and vibration so are best matched to performance-orientated cars.
  • Function First Performance – Known for drivetrain and shift-feel components, including engine mounts that target a tighter, more consistent response under load with careful attention to driver connection.
  • OE Match – OE-equivalent replacement parts aimed at maintaining original specification and reliability with sensible running costs, ideal where you want standard Porsche refinement.
  • Powerflex – Polyurethane solutions for related chassis and mounting areas, chosen when owners want more consistent geometry and control than ageing rubber, with compounds to suit road or track bias.

When should you review or replace your Porsche engine mounts?

Checking Porsche engine mounts periodically helps you catch age- or use-related deterioration before it affects refinement or starts to stress other components. Mounts work hard under acceleration, braking and gear changes, so wear is common on older or heavily used cars.

  • You notice excess vibration at idle, especially compared with how the car previously felt
  • There are clunks or thumps on take-up of drive or during gear changes
  • The exhaust or other components can be felt or heard knocking under load
  • Visual inspection shows sagging, perished or split rubber in one or more mounts
  • You are carrying out engine-out work, restoration or performance upgrades and want a fresh baseline

If any of these apply, it is a good time to review your engine mounts and replace anything that is past its best so your Porsche stays dependable and enjoyable to drive.

Explore Porsche engine mounts with Design911

Browse engine mounts for Porsche at Design911 – from OE-style replacements to uprated and motorsport-orientated options – and find solutions suited to daily road use, fast-road upgrades and full track projects. Our team can help you select parts matched to your model, year and intended use so you strike the right balance between comfort, control and durability.

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