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Alloy Wheels 21"
Wheel dimensions (offset (ET) in mm):
Front axle: 9.5 J x 21 ET 46
Rear axle: 11J x 21 ET 58
Tyre specifications:
Front axle: 275/40 R 21 107V XL
Rear axle: 305/35 R 21 109V XL
Fits:
Porsche (9YA) Cayenne 2018>>
Porsche (9YA) Cayenne S 2018>>
Porsche (9YA) Cayenne E-Hybrid 2018>>
Porsche (9YA) Cayenne Turbo 2018>>
Porsche (9YA) Cayenne Turbo S E-Hybrid 2018>>
Note: Only in conjunction with painted wheel arch extensions (Cayenne models: part number 9Y0044820, Cayenne Coupé models: part number 9Y0044820A).
Please note: The wheel hub covers (Part number 00004460737) are not included in the scope of supply.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0044610J
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
Wheel dimensions (offset (ET) in mm):
Front axle: 9.5 J x 21 ET 46
Rear axle: 11 J x 21 x ET 58
Tyre specifications:
Front axle: 275/40 R 21 107V XL
Rear axle: 305/35 R 21 109V XL
Fits:
Porsche Cayenne (9YA) 2018>>
Porsche Cayenne E-Hybrid (9YA) 2018>>
Porsche Cayenne S (9YA) 2018>>
Porsche Cayenne Turbo (9YA) 2018>>
Please note:
Only in conjunction with wheel arch extensions.
The wheel hub covers are not included.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0044610J
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23

Wheel dimensions (offset (ET) in mm):
Front axle: 9.5 J x 21 ET 46
Rear axle: 11 J x 21 x ET 58
Tyre specifications:
Front axle: 275/40 R 21 107V XL
Rear axle: 305/35 R 21 109V XL
Fits:
Tyre pressure monitoring (TPM) 433 MHz
Porsche Cayenne (9YA) 2018-23
Porsche Cayenne E-Hybrid (9YA) 2018-23
Porsche Cayenne S (9YA) 2018-23
Porsche Cayenne Turbo (9YA) 2018-23
Please note:
Only in conjunction with wheel arch extensions.
The wheel hub covers are not included.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0044617L
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
Please note: Only in conjunction with painted wheel arch extensions ( Cayenne models: part number 9Y0044820).

Front axle: 9.5 J x 21 ET 46 with 285/45 R21 113V XL tyres
Rear axle: 11.0 J x 21 ET 58 with 305/40 R21 113V XL tyres.
Fits:
Porsche 9YA Cayenne 2024>>
Porsche 9YA Cayenne S 2024>>
Porsche 9YA Cayenne E-Hybrid 2024>>
Porsche 9YA Cayenne Turbo E-Hybrid 2024>>
Porsche 9YA Cayenne S E-Hybrid 2024>>
Note: The hub caps are not included in the scope of supply.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0044603H
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
Alloy Wheels 21" – Premium Performance Alloy Wheels for Porsche
Alloy wheels 21" are premium performance wheels engineered to deliver maximum road presence, enhanced handling stability and increased brake clearance on modern Porsche models. Commonly fitted to high-performance and luxury Porsche platforms, 21" alloy wheels support wide, low-profile tyres and advanced braking systems while maintaining confident steering response and high-speed control.
Manufactured from high-quality aluminium alloys, these wheels offer an optimal balance of strength, reduced weight and effective heat dissipation compared to steel alternatives. At Design911, we supply a carefully curated range of 21" alloy wheels from leading performance manufacturers, designed to meet Porsche fitment standards and modern performance expectations.
What Do 21" Alloy Wheels Do?
Alloy wheels are designed to reduce unsprung weight while increasing rigidity and braking capability, directly enhancing vehicle dynamics. The 21" size delivers:
• Improved high-speed stability and steering precision
• Reduced unsprung mass for better suspension control
• Increased brake clearance for large performance braking systems
• Compatibility with wide, ultra-low-profile modern tyre options
Compared to smaller wheel sizes or steel wheels, 21" alloy wheels provide enhanced responsiveness, braking performance and a commanding visual stance.
Why Choose 21" Alloy Wheels?
21" alloy wheels are chosen by Porsche enthusiasts because they offer:
• Lightweight aluminium construction for performance driving
• A large diameter suited to modern and high-output Porsche platforms
• Compatibility with high-performance tyres and advanced brake systems
• A wide range of premium, luxury and motorsport-inspired designs
• Exceptional road presence and contemporary styling
For many Porsche owners, 21" alloy wheels deliver the ultimate blend of performance capability, luxury appearance and modern Porsche aesthetics.
When Should You Fit or Replace 21" Alloy Wheels?
21" alloy wheels are ideal when:
• Upgrading a Porsche for maximum visual impact and
performance
• Installing large brake systems requiring increased clearance
• Replacing worn or non-original wheels
• Enhancing both handling performance and modern vehicle aesthetics
Selecting the correct 21" alloy wheel helps preserve
Porsche handling balance while unlocking improved grip, braking performance and
stability.
At Design911, our alloy wheels meet strict standards for Porsche fitment
accuracy, strength and durability.