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Engine mounts
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Related, superseded, cross reference or alternative numbers for comparison.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
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
These have a HD rubber Shore rating of 75 and are for performance road and track use
Fits:
Porsche 964 Carrera
Porsche 993 Carrera
Click 'Zoom in' for large parts diagram.
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96

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
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
SET OF 2 Includes three pairs of inserts in varying densities
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
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
SET OF 2

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
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
Fits:
Porsche 964 C2 / C4 1990-94 (use with RS style mounts)
Porsche 993 Carrera RS 1995-98
Porsche 964 C2 / C4 1990-94 (use with RS style mounts)
Porsche 993 Carrera RS 1995-98
Diagram Ref No 13, 14, 15 and 16.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
964993MOUNTKIT
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
These have a HD rubber Shore rating of 75 and are for performance road and track use.
Fits:
Porsche 964 1989 to 1994
Porsche 993 1994 to 1998
Replace your worn, original engine mounts with these upgraded RS style, rubber bushed items.
2 Required per car
Click 'Zoom in' for large parts diagram.
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 964 1989 to 1994
Porsche 993 1994 to 1998
Replace your worn, original engine mounts with these upgraded uniball items.
This performance upgrade reduces engine movement to enhance and improve performance.
Designed for track use.
2 Required per car
Diagram ref no 7A
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Experience uncompromising drivetrain control with the HD RS-Style Engine Mount featuring a Uni-Ball Centre — the ultimate upgrade for high-performance Porsche 964 and 993 models.
Engineered for motorsport precision, this mount combines the robust RS-style housing with a spherical uni-ball bearing core, replacing the standard rubber insert. The result is near-zero flex or deflection under engine torque, ensuring sharper throttle response, improved gearshift accuracy, and stable engine alignment even under extreme load.
Sold Each.
x2 Required Per Car.
Fits:
Diagram Ref No 7A
What This Product Does:
Symptoms Of Worn Or Failing Engine Mounts:
Why This Upgrade Version Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Upgrade your Porsche’s powertrain stability with the HD RS Style Engine Mounts — precision-engineered replacements inspired by the legendary 964 and 993.
These high-performance mounts use 75A Shore durometer rubber, offering a significant increase in stiffness over standard or hydraulic mounts.
The result reduced drivetrain movement, crisper throttle and shift response, and more consistent handling under load.
Sold Each.
x2 Required Per Car.
Fits:
Diagram Ref No 7A
What This Product Does:
Symptoms Of Failing / Weak Engine Mounts:
- Excess engine movement or shift under acceleration or deceleration
- Clunks, knocks, or bangs when shifting or when the engine “settles”
- Increased vibration, especially at idle or low RPM in the cabin
- Misalignment of driveline (axles, driveshaft, transmission) under load
- Premature wear on exhaust, wiring, hoses — anything connected to the engine that gets stressed when it moves
Why Upgrade To HD RS 75A Mounts:
- Sharper Throttle & Shift Response - Stiffer rubber minimizes drivetrain lag and flex.
- Reduced Engine Twist - Keeps drivetrain geometry stable under load.
- Improved Handling Balance - Less movement means more predictable chassis behavior.
- Enhanced Durability - 75A compound resists collapse and fatigue over time.
- Track-Tested Feedback - Ideal for RS conversions, spirited driving, or track use.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96437504381
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
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.