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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram

DDM

DDM
About DDM

DDM for Porsche

DDM parts for Porsche at Design911 cover practical replacement and upgrade components chosen to fix common wear points and restore function without unnecessary complexity

A Quick Look at DDM

DDM information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where DDM is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Typical reasons to choose these parts include repairing known wear items, refreshing tired components, and making sensible upgrades while keeping the car usable day to day.
  • Common triggers to replace parts include noise, looseness, intermittent operation, and premature wear, especially where underlying issues or poor installation have been present.
  • Watch for symptoms such as rattles, vibration, or components that no longer operate consistently, and always address corrosion or related worn parts at the same time.
  • Check product notes for whether a part is OE-spec or an alternative, and confirm if any extra hardware or installation accessories are recommended.
  • Where possible, plan to fix the root cause (such as worn mounts, damaged wiring, or misalignment), not just the one failed part, to avoid repeat issues.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Interior & Accessories — Interior parts are replaced to refresh worn touch points, fix broken trim, or restore factory fit and function during a refurbishment. Accessories are also used to improve usability (storage, protection, convenience) without altering the car’s character. For classics, replacing tired interior components can noticeably lift the whole cabin feel. Common symptoms include sticky switches, broken clips, rattles, sagging trim, worn surfaces, faded plastics, and broken hinges or handles.

  • Always check whether parts are specific to certain model years or interior options, as small changes in clips and finishes can affect fit.
  • Use proper trim tools and replace missing clips or fasteners during installation to minimise new rattles.

Steering Wheels Parts — Steering wheel parts and accessories such as boss kits, spacers, horn components, trim rings, and switches are replaced to restore proper function after wear, damage, or incorrect previous installations. They are also needed when retrofitting a different steering wheel so that the supporting hardware matches. Getting these smaller parts right helps prevent rattles, warning lights, and poor ergonomics. Common defects include horn faults, a loose wheel, creaks, airbag warnings (where applicable), and non-functioning buttons.

  • Boss kits and many steering components are model-specific, so always confirm spline pattern and required depth for your Porsche.
  • Align the wheels straight ahead, mark the steering shaft, and torque all fasteners to specification to maintain correct steering alignment and function.

Explore DDM at Design911

View the current DDM range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 1 to 5 (of 5 products)
P-964-991-0001
Product Information
Product Information
Steering wheel adaptor, to fit a 991 (or even a 997) steering wheel on a 964, 928, 968 or a 944

For late cars with airbags

With this adaptor you can install a 991 or 997 steering wheel on the older Porsche models.

WARNING: The adaptor is mechanical only, you should purchase a 997 or 991 steering wheel without the steering wheel commands, because is not possible to make them work on the old electronics.

The new style airbag will not work. Any test to connect the airbag connector to the 997/991 socket(s) is at your own risk.

MATERIALS: Billet aluminum and steel CNC machined, PVC machined external cover

FINISH: Matt black

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

P-964-991-0001
P-964-991-0001

The product you are viewing cross references to these numbers
P964-00001
Product Information
Product Information
Steering wheel spacer for Porsche 964 / 928 / 944 / 968 For cars with airbags

Fits
Porsche 911 (964)
Porsche 928 S4
Porsche 944 S2 / turbo
Porsche 968
Manual and Tiptronic

This is the ideal solution for cars which do not have steering wheel depth adjustment which is inconvenient for tall people.

It is perfect for those who want to bring the steering wheel closer to the driver without resorting to the goblet steering wheel, which, as is well known, does not have an airbag.

The assembly of the spacer is simple and reversible, in case you want to remove from the car everything goes back to the way it was before.

FINISH: Matt black

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

P964-00001
P964-00001

The product you are viewing cross references to these numbers
STSPACER991
Product Information
Product Information
Steering wheel adaptor, to fit a 991 (or even a 997) steering wheel on a 996, 986 or a 993.

With this adaptor you can install any 26 mm spline shaft steering wheel, even 997's, on the older Porsche since the 993.

WARNING: The adaptor is mechanical only, you should purchase a 997 or 991 steering wheel without the steering wheel commands, because is not possible to make them work on the old electronics.

The new style airbag will not work. Any test to connect the 996 airbag connector to the 997/991 socket(s) is at your own risk.

We suggest to turn the airbag warning light off using a resistance.

Loosing the airbag may be consider a loss, but after 15+ years, the 996 airbag functionality, as well as all old cars' airbags, are no longer guaranteed.

KIT SET: Bolts, Central bolt, Washers, Youweel

MATERIALS: Billet aluminum and steel CNC machined, PVC machined external cover

SPLINE: 991 26 mm spline on the steering wheel side, 996 16 mm spline on the steering column side, CNC machined, both on male/female hub, 100% matching with OEM steering column and wheel

FINISH: Matt black
STSPACER997
Product Information
Product Information
Steering wheel spacer for Porsche Carrera 997 / Boxster and Cayman 987. 

Thickness: 50mm

New version of the spacer. Updated in many details: the finish of the spline machining and the offsets, to better match the cars' interior.
It retains all the original functionalities of the steering wheel: the buttons, the airbag, the paddle shifter and the steering wheel commands.

KIT SET: Bolts, Central bolt, Washers, Wire for steering commands, Wire for the airbag's unit, Youweel.

SPLINE: CNC machined, both on male/female hub, 100% matching with OEM steering column and wheel

WIRE EXTENSION: Required for the airbag, Required for the steering wheel commands

FITMENT: The spacer replicates the same OEM fitment of the steering wheel on the column

MATERIALS: Billet aluminum and steel CNC machined, PVC machined external cover

FINISH
Matt black
STSPACER993986996
Product Information
Product Information
Steering wheel spacer for Porsche 993 / 996 / 986 Boxster. Fits all engines and gearboxes. 
Hight: 6cm


The spacer replicates the same OEM fitment of the steering wheel on the column.

No need to extend the wires, very easy installation.

Makes the car faster to drive in track and comfortable in long trips.

KIT SET: Bolts, central nut, Washers, Wire for steering commands, Youweel.

MATERIALS: Billet aluminum and steel CNC machined, PVC machined external cover

SPLINE: CNC machined, both on male/female hub, 100% matching with OEM steering column and wheel

WIRE EXTENSION: Required for the steering wheel commands

FINISH: Matt black

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

STSPACER993986996
3607609961

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)