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Engine Mounts

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DISPLAYING 1 to 16 (of 39 products)
1 2 3
HDMOUNTKIT
Product Information
Product Information
Engine /Gearbox Mount kit with extra long bolts - Heavy Duty
Upgrade your mounts to Heavy Duty, thicker and more resistant option.

oematch

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount

(not Club Sport, not Cabrio)

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Related, superseded, cross reference or alternative numbers for comparison.

HDMOUNTKIT
91137504300
1617900100
61611504301

The product you are viewing cross references to these numbers
R-9055
Product Information
Product Information
Brey Krause Engine Carrier Mount.


breykrause 

For Porsche 911 1964-89

OEM carrier mount units can experience fatigue failures at the welds from increased G loads while cornering and threshold braking at the track. The R-9055 Engine Carrier Mount counteracts these forces using a reinforced gusset design and high-quality materials.

Material: Type 304 stainless steel
Finish: Powder-coated in durable red finish
Weight: 3.8 lbs.
Models: Fits Porsche 911 ('64-'89).
Installation: Works with solid or rubber motor mounts; new mounting bolts supplied.
Miscellaneous: Replaces OEM Unit

For Installation instructions please CLICK HERE

PFR57-415H
Product Information
Product Information
Powerflex Heritage Collection Replacement Engine /Gearbox Mount Bush.

powerflexh

Set of 2 bushes which will fit 2 Engine mounts

Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)

Please note the price does not include mounts

Fits to No.8 on the diagram


Powerflex Heritage Collection. For Modern Day Classics.

A range of bushes engineered for the road to compliment your classic car.

POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.

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Related, superseded, cross reference or alternative numbers for comparison.

PFR57-415H
91137504300
PFR57-415
PFR57415
PFR57-415H

The product you are viewing cross references to these numbers
SPF1375K
Product Information
Product Information
SuperPro Replacement Engine /Gearbox Mount Bush.
SET OF 4 bushes

superpro

Please note the price does not include mounts. You are buying only the bushes

Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)

Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components

Click 'Zoom in' for large parts diagram.
Fits to No. 8 on the diagram

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

SPF1375K
91137504300
91137501101

The product you are viewing cross references to these numbers
91137504300/2
Product Information
Product Information

Engine /Gearbox Mount kit with extra long bolts - Heavy Duty Upgrade your mounts to Heavy Duty, thicker and more resistant option.

Please use longer bolts  90008214201L

oematch

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount

(not Club Sport, not Cabrio)



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

91137504300
91137504300
61611504301

The product you are viewing cross references to these numbers
Special Order item
91137504306
Product Information
Product Information
Engine / gearbox mount. 
Sold each

porsche

Fits:
Porsche 911 1978-89 CABRIO

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

91137504306
91137504307
91137504306
91137504300

The product you are viewing cross references to these numbers
91137504306/1
Product Information
Product Information
Engine / gearbox mounts - sport version stiffer than standard

New sport version with shifter rubber mounts, great for trackdays and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.0L or 3.2L
You will need 2 for the 915 transmission (Note: This mount is not compatible with the later G50 gearbox)

Fits:
Porsche 911 1978-89
Porsche 911 Cabrio 1978-89

Diagram Ref No 8

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

91137504306
91137504307
91137504306
91137504300

The product you are viewing cross references to these numbers
3609309111
Product Information
Product Information
Engine / gearbox mounts  (SET OF 2)  HD 85A shore rating sport bushes

rohler

New sport version with shifter rubber mounts, great for track days and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.0L or 3.2L
You will need 2 for the 915 transmission (Note: This mount is not compatible with the later G50 gearbox)

Fits:
Porsche 911 1976-86
Porsche 911 Cabrio 1978-86

Click picture for large parts diagram.
Diagram Ref No 8.

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

3609309111
91137504307
91137504306
91137504300

The product you are viewing cross references to these numbers
3609309112
Product Information
Product Information
Engine / gearbox mounts  (SET OF 2)  HD 85A shore rating sport bushes

rohler

New sport version with shifter rubber mounts, great for track days and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.2L G50 
You will need 2 for transmission G50 Gearbox

Fits:
Porsche 911 1987-89
Porsche 911 Cabrio 1987-89

Click picture for large parts diagram.
Diagram Ref No 8.

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

3609309112
91137504307
91137504306
91137504300

The product you are viewing cross references to these numbers
Special Order item
91137504300
Product Information
Product Information
Engine / gearbox mounts.

With new engine mounts OR transmission mounts, replace for more smoother and exact shifting.

You will need 2 for the engine. (not Club Sport, not Cabrio)
You will need 2 for the G15 transmission not G50 Gearbox

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount

(not Club Sport, not Cabrio)

Diagram Ref No 8

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

91137504300
91137504300
61611504301

The product you are viewing cross references to these numbers
91137504300/1
Product Information
Product Information
Engine / gearbox mounts.

oematch

With new engine mounts OR transmission mounts, replace for more smoother and exact shifting.

You will need 2 for the engine. (not Club Sport, not Cabrio)
You will need 2 for the G15 transmission not G50 Gearbox

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount

(not Club Sport, not Cabrio)

Click 'Zoom in' for large parts diagram.
Diagram ref no 8.

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

91137504300
91137504300
1617900100
61611504301

The product you are viewing cross references to these numbers
Special Order item
91137531300
Product Information
Product Information
Engine carrier bearing end plate.

porsche

Fits:
Porsche 911 1978-89 CABRIO

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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

91137531300
91137531300

The product you are viewing cross references to these numbers
M24
Product Information
Product Information
Rennline Tunable Semi-Solid Engine Mount (Pair).

rennline

Fits:
Porsche 911/930

The Rennline Tunable Engine Mount for the 911/930 offers the ultimate in adjustability 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 aluminum 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 utilize 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.

M24
91137504300

The product you are viewing cross references to these numbers
M02
Product Information
Product Information
Rennline Solid Motor / Engine Mounts Pair. ALUMINIUM.
SET OF 2.

rennline

Fits:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)

Solid engine and transmission 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 with new Grade 8 mounting hardware.

Rennline mounts install easily in both the transmission and engine mount locations for all 1971-89 911's, and in the engine mount locations only for pre-1971 911's. Motorsport Product.



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

M02
91137504306
91137504300
91137504307

The product you are viewing cross references to these numbers
Special Order item
80319934H
Product Information
Product Information
Engine Mount Bolt Washer.
EACH.

porsche

Fits:
Porsche 911 / 911 (930) Turbo 1984-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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

80319934H
803199347
80319934H

The product you are viewing cross references to these numbers
Special Order item
PCG010191A
Product Information
Product Information
Engine mount bolt. M 12 x 1,5 x 95
EACH.

Fits:
Porsche 911 1974 - 1989
Porsche 911 (930) Turbo 1975-89

Diagram ref no 12

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

PCG010191A
90008214201
90008202601
90008202602
N0101912
PCG010191A

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 39 products)
1 2 3
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About Engine Mounts

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.


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How to Identify and Replace Worn Engine Top Mounts

In this informative session, Lawrence Todd from Design 911 explains all the essential details about engine mounts—what they do, how to recognise signs of deterioration, and when it's time for a replacement. Discover the various types of engine mounts available for Porsche models and how upgrading can improve your vehicle’s performance.
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