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Front Sub frame
- 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 / GT3 RS 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 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Fits:
Porsche 997 Carrera MKI & MKII 2005-10 COUPE / TARGA / CABRIO
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
997331111120
The product you are viewing cross references to these numbers
- 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 / GT3 RS 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 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Restore rear suspension precision with this wheel carrier bush for the Porsche 997 (2005-10, Carrera MKI & MKII, Coupé/Targa/Cabrio). With a hardness of 65 Shore, this bush provides the ideal fusion of compliance and firmness — helping to maintain correct carrier alignment, reduce rear noise/vibration, and preserve tyre wear. Whether you’re renewing worn components or refreshing the rear chassis mounts, this bush ensures the wheel carrier mount behaves exactly as intended.
Sold Each.
x2 Required Per Car.
Fits:
- 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
What This Product Does:
- In the rear suspension of the 997, the wheel carrier/hub assembly is mounted to the suspension linkages / knuckle, and the bush or bushing at the mounting point provides isolation and alignment.
- The wheel carrier bush acts as the mounting interface, helping absorb road shocks, reduce noise/vibration, and maintain correct geometry of the wheel carrier relative to the vehicle’s chassis/subframe.
- With a correct hardness (65 Shore in this case), the bush gives the proper balance between compliant behaviour (for comfort and longevity) and firmness (for alignment stability and handling precision).
- Replacing a degraded bush ensures the wheel carrier remains correctly located and aligned, avoiding excess movement under load which can degrade handling, alignment, or tyre wear.
Symptoms & Signs Of Wear/Need For Replacement:
- Clunking or knocking noises from the rear when going over bumps, especially from the area of the wheel carrier/hub.
- Rear instability or vague handling: the rear may feel loose, or alignment may shift unexpectedly under load (cornering, acceleration, braking).
- Uneven or accelerated tyre wear on the rear wheels — particularly inner or outer edge wear — due to geometry shift caused by excessive carrier movement.
- Vibration or poor noise/vibration/harshness levels at the rear, especially after installation of new tyres, alignment, or suspension components.
- Visible deterioration of the bushing: cracks, splits, collapse, or the rubber is soft/loopy when compared to new; or the bushing may be loose in its housing/unseated.
- Replacing worn wheel carrier bushes helps restore the correct behaviour of the rear suspension: the carrier remains securely located, alignment remains stable, and the car handles as it should.
- Because the 65 Shore rating matches the OEM street compound, you maintain the intended balance between comfort and performance. If the bushing is too soft (worn or degraded), you lose alignment stability; if one upgrades to a much stiffer bush without considering other suspension components, you may introduce unwanted harshness.
- For owners of the 997 especially with upgraded suspension, stronger tyres, or high-performance use, making sure the wheel carrier bushes are in good condition is foundational — worn bushes can compromise the benefit of other suspension upgrades.
- Good bushing condition contributes to longer tyre life, better alignment retention, reduced rear suspension noise, and more confident handling under all conditions.
- For a car of that age (2005-10 era), rubber parts will naturally age, degrade, and a proactive replacement is good maintenance rather than waiting for failure.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
997331111120
The product you are viewing cross references to these numbers
- 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 / GT3 RS 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 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
This OE Match rear wheel carrier bush is a replacement suspension bush for Porsche 997 rear wheel carriers. It has an 85 sports shore rating, making it suitable for drivers looking for a firmer, more performance-focused replacement compared with a standard soft rubber bush.
Fits:
Porsche 997 Carrera MKI & MKII 2005-10 COUPE / TARGA / CABRIO
Diagram ref no 1
The wheel carrier bush supports the connection between the rear wheel carrier and suspension assembly. It helps control wheel movement, absorb road vibration, and maintain rear suspension geometry. The firmer 85 shore rating helps improve suspension response and rear axle control while still allowing controlled movement within the suspension system.
Functions
• Replaces the rear wheel carrier bush
• Supports the rear wheel carrier within the suspension assembly
• Helps maintain correct rear suspension geometry
• Improves rear axle stability and response
• Helps reduce unwanted wheel carrier movement
• 85 sports shore rating for a firmer performance feel
• OE Match replacement for rear suspension repair or upgrade.
Why Replace This Part?
Wheel carrier bushes are exposed to road load, suspension movement, moisture, heat, and age-related wear. Over time, the original bush can soften, crack, split, perish, or develop excessive movement. A worn bush may cause vague handling, rear-end instability, knocking noises, poor alignment control, or uneven tyre wear. Replacing the bush helps restore suspension precision and supports more stable handling.
When to Replace This Part
• The original wheel carrier bush is cracked, split, worn, or perished
• Rear suspension movement or play is present
• Knocking or clunking is heard from the rear suspension
• Rear wheel alignment does not remain stable
• Tyres show uneven or accelerated wear
• The rear wheel carrier has been removed or serviced
• A firmer sports suspension bush is required for improved handling response.
Where it fits on the car
This bush fits in the rear wheel carrier on Porsche 997 models. It is suitable for use with wheel carrier part numbers 99733111107 and 99733111207, according to the vehicle’s rear suspension layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
997331111130
The product you are viewing cross references to these numbers
- 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 / GT3 RS 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 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Upgrade your Porsche 997’s rear suspension precision with this high-performance 85 Shore wheel carrier bush, designed for the rear wheel carrier mountings of Carrera MK I & MK II models (2005–10). This firmer bushing compound significantly reduces flex at the carrier mount, maintaining correct wheel alignment, improving rear-end stability, and enhancing tyre contact under load. Ideal for spirited driving, track use or any performance-oriented setup, it offers a direct-fit, high-quality solution for improved handling response and control.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 2S 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
What This Product Does:
- The wheel carrier bush is installed at the interface between the wheel carrier / hub carrier assembly and the vehicle’s rear suspension or subframe mount. Its role is to control movement, absorb some vibrations/loads, and provide a stable mounting point for the carrier.
- By using a stiffer compound (85 Shore vs standard 65 Shore), the mount allows less compliance, meaning the wheel carrier remains more tightly located under loads (cornering, acceleration, braking), which in turn helps maintain alignment (camber, toe, etc.) and improves handling precision.
- In effect: it helps keep the rear wheels more accurately positioned relative to the chassis during dynamic driving rather than letting the carrier mount deflect under load, which can degrade handling or tyre wear.
Symptoms & Signs Of Wear Or Need For Upgrade:
- Clunks, knocks or banging noises from the rear suspension or wheel carrier area, especially when going over bumps or during heavy cornering.
- Rear-end instability or vague handling, such as the rear stepping out, feeling loose or less composed when pushed hard.
- Uneven or accelerated tyre wear on the rear tyres, especially on the shoulder or edge, due to alignment shifting under load.
- Suspension modifications: If the car has been lowered, fitted with stiffer springs/anti-roll bars, or used in performance/track settings, the standard 65 Shore bush may be too soft — you might see more deflection than ideal. The 85 Shore version offers firmer control.
- Visible deterioration of the original bush: cracked or collapsing rubber, looseness of the bush in its bracket, or excessive movement of the carrier when tested.
- Upgrading to the 85 Shore version helps restore or improve rear suspension precision, especially for performance or track-oriented driving.
- It reduces unwanted movement of the wheel carrier under dynamic loads, which results in better alignment retention, sharper handling, and longer tyre life.
- For vehicles still using the softer 65 Shore bushing, if they are used aggressively or have upgraded suspension components, the softer bush might compromise handling by allowing too much flex; hence the firmer 85 Shore version is a smart step.
- It supports the rest of your suspension upgrades: if you’ve improved springs, bushings, sway bars etc., using a firmer bush at the carrier mount ensures nothing is held back by a soft mounting point.
- Even for road use, replacing worn bushes prevents drift in alignment settings, reduces rear-end noise/vibration, and helps maintain the driving experience.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
997331111130
The product you are viewing cross references to these numbers
Porsche Front Sub Frame
At Design911, we supply a wide range of front sub frame components for Porsche models, helping you maintain, personalise and enjoy your car.
Why do Porsche Front Sub Frame matter?
Front Sub Frame affect how a particular area of your Porsche looks, feels or operates in everyday use. Over time they can suffer from wear, corrosion, fading or other age-related changes, or simply start to look tired compared with the rest of the car. Replacing tired or damaged parts helps your Porsche feel better cared for and can prevent small niggles turning into larger jobs later on.
- Keep your Porsche looking smart rather than tired or neglected
- Help protect the surrounding area from dirt and corrosion where relevant
- Reduce minor niggles such as looseness, rattles or mismatched parts
- Support long-term enjoyment, pride of ownership and potential resale value
Common options & kits
Individual replacement parts
Specific items to address a particular area or issue without changing everything at once.
- Ideal for targeted repairs
- Lets you replace only what is needed
- Helps keep initial costs under control
Matched sets or pairs
Components supplied together so both sides or related items are renewed at the same time.
- Consistent feel and performance
- Helps avoid uneven wear or behaviour
- A sensible choice for routine maintenance
Complete kits
Grouped parts designed to refresh a whole system or area in one go, useful for upgrades and restorations.
- Everything specified in a single package
- Saves time compared with sourcing parts individually
- Ideal when upgrading or restoring your Porsche
Brands & quality options
At Design911, we stock genuine Porsche parts where available, plus OEM-equivalent and carefully selected aftermarket brands. This lets you choose between keeping things original, adding subtle upgrades or managing budgets on everyday maintenance.
Elephant Racing
Elephant Racing is known for performance-oriented Porsche suspension components, with a focus on precise fitment and track-proven reliability for road and motorsport use.
Eurowise
Eurowise develops in-house engineered Porsche products aimed at demanding and off-road applications, with emphasis on durability, quality and adventurous use.
OE Match
OE Match offers a broad catalogue of Porsche replacement parts, designed around original references to support correct fitment across many Porsche generations.
Powerflex
Powerflex produces polyurethane suspension components for Porsche models, offering increased durability and control compared with many standard rubber parts.
Prekom
Prekom manufactures stock-replacement steering and suspension components for Porsche models, focusing on correct geometry and reliable day-to-day use.
When should you review or replace your Porsche front sub frame?
Checking front sub frame regularly helps you spot wear, damage or age-related deterioration before it affects comfort, refinement or leads to more expensive repairs later on.
- Existing parts are worn, cracked, scuffed, faded, corroded or missing
- You notice looseness, vibration or an untidy appearance around the area they sit in
- You have had related work carried out and want everything to look and feel consistent
- You want the car to feel smarter and better cared for in daily use or before resale
If any of these apply, it is a good time to review your front sub frame and replace anything that is past its best so your Porsche stays dependable and enjoyable to drive.
Explore Porsche front sub frame with Design911
Browse front sub frame for Porsche at Design911 — from individual parts to complete kits — and find options to suit everyday maintenance, upgrades and full projects.