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Engine Mounts

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90037824901
Product Information
Product Information
Bolt for engine/gearbox mount support bracket. AM 10 x 55.

Fits:
Cars  with 6-speed manual transmission
Porsche 981 Boxster 2012 - 2016 
Porsche 981SP Boxster Spyder 2016
Porsche 982 Boxster 2017>>
Porsche 982SP Boxster Spyder 2019>>
Porsche 981C Cayman 2013 - 2016
Porsche 981C Cayman GT4 2016
Porsche 982C Cayman 2017>>
Porsche 982C Cayman GT4 2019>>

Diagram ref no 6 (engine) or 2 (gearbox).

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Related, superseded, cross reference or alternative numbers for comparison.

90037824901
90037824901

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M143
Product Information
Product Information
Tuneable engine mount set.
Sold as a pair

Fits:

Porsche Boxster 718 2.0L Manual (300 Bhp)
Porsche Boxster S 718 2.5L Manual (350 Bhp)
Porsche Boxster S 718 2.5L PDK (350 Bhp)
Porsche Boxster T 718 2.0L Manual (300 Bhp)
Porsche Boxster T 718 2.0L PDK (300 Bhp)
Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
Porsche Boxster GTS 718 2.5L PDK (365 Bhp)

Porsche Cayman 718 2.0L Manual (300Bhp
Porsche Cayman 718 2.0L PDK (300Bhp)
Porsche Cayman S 718 2.5L Manual (350Bhp)
Porsche Cayman S 718 2.5L PDK (350Bhp)
Porsche Cayman T 718 2.0L Manual (300Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)

Rennline Tuneable Semi-Solid Engine Mount 


Rennline Tuneable Semi-Solid Engine Mount is the ultim
ate upgrade for Porsche 718 owners seeking improved performance, precision, and adjustability. Designed to replace the compliant factory rubber mounts, this system dramatically reduces unwanted engine movement, delivering sharper acceleration, enhanced handling, and a significantly improved shifter feel.

Perfect for both street and track use, this is a versatile, fully tunable solution that allows you to configure your Porsche’s performance exactly the way you want.

Key Features

  • CNC Machined Billet Aluminium Construction – built for strength, precision, and durability.
  • Tuneable Inserts – includes three pairs of polyurethane inserts in different densities:
    - Yellow (65A) – softest, for daily driving comfort and reduced slop.
    Blue (75A) – balanced stiffness for aggressive street and light track use.
    Red (85A) – stiffest, designed for full race applications.
  • Nine Possible Combinations – mix and match inserts to fine-tune mount stiffness for your driving style.
  • Improved Driving Feel – reduces engine slop, prevents missed shifts, and increases drivetrain responsiveness.
  • Street or Track Ready – softer inserts preserve comfort, while stiffer ones maximise control under racing conditions.

Why Replace Your Factory Engine Mounts?

Factory Porsche engine mounts use compliant rubber that softens over time, causing:

  • Excessive Engine Movement – leading to sloppy acceleration and handling.
  • Reduced Shifter Precision – missed shifts or vague gear changes. 
  • Inconsistent Performance – especially under high load or during spirited driving.

Upgrading to the Rennline M143 semi-solid mount eliminates these issues, transforming your Porsche with sharper responses, stronger acceleration, and improved driver confidence.

Benefits of the Rennline M143

  • Customisable Performance – nine stiffness options let you tailor comfort and control.
  • Motorsport-Inspired Design – ideal for both road cars and dedicated track builds.
  • Enhanced Longevity – billet aluminium body and durable polyurethane inserts last far longer than factory rubber.
  • Confidence in Every Drive – Rennline products are built by Porsche enthusiasts for Porsche enthusiasts, ensuring quality and excellence.

Upgrade your Porsche 718 with the Rennline M143 Tuneable Semi-Solid Engine Mount – the most adjustable, performance-focused mount available, giving you the freedom to tune your car for the street, the track, or anywhere in between.



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

M143
982199131B
982199131C
982199131D

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

Engine mounts, also called motor mounts, are critical components of your Porsche, securing the engine to the chassis and absorbing vibrations during operation. Traditionally, rubber has been the go-to material for these mounts, but polyurethane is gaining popularity due to its enhanced performance and durability compared to rubber.

Polyurethane motor mounts excel at absorbing vibrations, ensuring a smoother and quieter ride, benefiting both driver and passengers. Although they are initially more expensive than rubber mounts, their longer lifespan makes them more cost-effective over time, reducing maintenance and replacement expenses.

In high-performance vehicles like Porsches, motor mounts face extreme stress, vibrations, heat, and pressure. Uprated polyurethane motor mounts provide additional benefits by limiting engine movement, enhancing engine stability during acceleration and gear shifts, and offering improved gear engagement, thus protecting gearboxes and shafts.


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