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Front Monoball Shock Absorber Top Mount & Contact Bearing Kit. Porsche 996 C4 / Turbo

Front Monoball Shock Absorber Top Mount & Contact Bearing Kit. Porsche 996 C4 / Turbo - 360250996F4

Kits

360250996F4/1KIT

Product Information

Rohler Front Monoball Shock Absorber Top Mount & OE MATCH Contact Bearing Kit.
Upgrade your front suspension with this comprehensive top-mount kit, designed for front shock/strut towers on Porsche 911 (996 C4 / C4S / Turbo)
The kit includes the Rohler monoball top mounts (left & right) with offset mounting holes for improved camber control, precision-machined 6061 aluminium construction, stainless hardware and angular contact bearings.

Fits:

Porsche 996 C4 3.4L 1999-08/01
Porsche 996 C4 3.6L 09/01-2005
Porsche 996 C4S 3.6L 09/01-2005
Porsche 996 TURBO 2000-05

Diagram Ref No 8, 9, 10, 11, 12, 13

What This Product Does:

The top mount (strut mount) sits between the top of the shock absorber/strut and the vehicle’s body/strut tower. It supports the loads from springs, damper, steering (via bearing), and absorbs vibration/road noise.
A monoball mount version replaces the standard rubber mount with a spherical bearing (monoball) or very stiff mounting that provides more direct steering/suspension feedback, reduces deflection under load, and keeps suspension geometry (camber, caster) more consistent during hard cornering.

Symptoms & Signs You Need Replacement:

Clunking or knocking noise from the top of the front strut tower when going over bumps or during steering inputs — a worn mount or bearing often causes this.
Squeaking or creaking noise when steering the wheel, especially at low speeds — the strut mount bearing may be worn.
Poor steering feedback or vague handling, especially when cornering hard — a worn mount can cause deflection and loss of camber control.
Excessive vibration or noise through the body from the front suspension; worn mount rubber or bearing can transmit more noise.
During a shock/strut replacement or front suspension overhaul — since the top mount assembly must be removed anyway, replacing the modern monoball upgrade kit is logical to restore or upgrade suspension quality.
Steering geometry issues — if you’ve had camber/caster issues, or your tyres are wearing unevenly at the front, a poor top mount may contribute.

Why Replacement Matters:

Suspension performance & tyre contact: On high-performance cars like a Porsche 911 C4/Turbo, the front suspension’s geometry and mounting rigidity matter a lot. If the top mount is deflecting, you lose optimal tyre contact patch under load, which reduces grip, increases tyre wear, and impairs handling.
Durability & noise/vibration: Rubber top mounts tend to degrade over time (cracking, flattening, absorbing road noise). A good mount + bearing kit eliminates unwanted compliance and noise, and lengthens life of the strut/damper assembly.
Precise handling and steering feel: The top mount bearing allows the strut to turn with steering; if worn, you get sloppy steering feel and delayed response. Upgrading to a monoball mount helps sharpen the steering and gives more direct feedback.
Prevents repeat labour: Since access to the strut top requires removing mount or taking down the strut, doing a mount/bearing replacement while everything is open is cost-effective. It avoids having to redo labour later when noise or wear returns.

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

360250996F4

99634301604

99634301504

99634350100

99634310703

99634352501

99634352300

99634352500

PAF103353

The product you are viewing cross references to these numbers

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Front Shock Absorber Top Mount Underlay Pad. Porsche 981 / 982 / 991.1 / 991.2 / 992.1 / 992.2

9P1412149

Product Information

Front Shock Absorber Top Mount Underlay Pad, Upper.
Sold Each.
x2 Required Per Car.

Fits:
Porsche 981 Boxster 2012>>2016
Porsche 981C Cayman 2014>>2016
Porsche 981 Spyder 2016>>2016

Porsche 982 Boxster 2017>>
Porsche 982C Cayman 2017>>

Porsche 991.1 Carrera 2012>>2016
Porsche 991.1 Turbo 2014>>2016

Porsche 991.2 Carrera 2017>>2019
Porsche 991.2 Turbo 2017>>2020

Porsche 992.1 Carrera 2019>>
Porsche 992.1 Turbo 2020>>
Porsche 992.2 Carrera 2024>>
Cars With Option Codes:
1X1 - Four-Wheel Drive
1X2 - Rear-Wheel Drive
A8C - Comfort Equipment
A8F - Sports Equipment
1BH - Suspension/Shock Absorption, Standard 2
1BV - Sports Suspension/Shock Absorption
2UA - Standard Design
2UH - Controlled Suspension System
E7S - 992 Dakar
1BM - Standard Suspension/Shock Absorption
2UM - Chassis With Increased Ride Height 2
FM0 - Basic

Diagram Ref No 13

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

9P1412149

9P1412149

99134351101

The product you are viewing cross references to these numbers

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Front Monoball Shock Absorber Top Mount & Contact Bearing Kit. Porsche 996 C4 / Turbo