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Parts for PROTON M21
IMPROVE GRIP, HANDLING & PERFORMANCE.
Whiteline is a global leader in suspension and handling performance components, delivering high quality products engineered to improve vehicle balance, stability, and driver control. Designed and developed using advanced engineering and testing processes, Whiteline components are trusted by PROTON M21 drivers, enthusiasts, and motorsport profess... Read more
Whiteline is a global leader in suspension and handling performance components, delivering high quality products engineered to improve vehicle balance, stability, and driver control. Designed and developed using advanced engineering and testing processes, Whiteline components are trusted by PROTON M21 drivers, enthusiasts, and motorsport professionals around the world. With a focus on performance, durability, and precision, Whiteline products are designed to enhance the way PROTON M21s respond, handle, and perform in real-world driving conditions.
Why Upgrade Your PROTON M21 Suspension
Upgrading PROTON M21 suspension components is one of the most effective ways to improve vehicle handling, stability, and overall driving performance. Over time, factory suspension components can wear or lose effectiveness, reducing steering response and vehicle control. Performance-focused suspension upgrades help maintain correct suspension geometry, improve tyre contact with the road, and reduce unwanted movement during braking, acceleration, and cornering. With the right PROTON M21 components installed, drivers can experience improved confidence, responsiveness, and overall driving feel.
How to Choose the Right PROTON M21 Suspension Components
Selecting the right suspension components depends on the vehicle, driving style, and intended performance goals. Whiteline designs components that help drivers improve handling precision while maintaining everyday drivability. Whether the goal is improving cornering performance, reducing vehicle sway, or sharpening steering response, Whiteline PROTON M21 suspension components are engineered to work together as a complete handling system. Choosing the correct components helps ensure optimal balance between performance, comfort, and control.
Vehicle Compatibility Information
Whiteline develops suspension and handling components for PROTON M21s. Products are engineered to integrate with factory suspension systems while improving performance and responsiveness. Whether a PROTON M21 is used for daily driving, spirited road use, or performance-focused applications, Whiteline components are designed to enhance handling characteristics while maintaining reliability and durability.
Whiteline Key Products
Whiteline offers a comprehensive range of suspension and handling components designed to improve PROTON M21 balance, control, and cornering performance. Each product is engineered to deliver consistent performance while maintaining long term reliability.
PROTON M21 Steering and Alignment Components
Steering and alignment components play an important role in maintaining precise vehicle control. Whiteline designs components that help improve steering accuracy, maintain proper alignment, and reduce unwanted movement within the suspension system. These upgrades help deliver sharper steering response, improved driver feedback, and greater confidence behind the wheel.
PROTON M21 Suspension and Handling Components
Whiteline PROTON M21 suspension components are engineered to improve vehicle stability, balance, and overall handling performance. By managing suspension movement and maintaining proper geometry, these components help reduce body roll, improve tyre contact, and enhance cornering performance. The result is more predictable vehicle behaviour and improved driver control across a range of driving environments.
Installation Options
Whiteline PROTON M21 suspension components can be installed by experienced DIY enthusiasts or professional workshops. Proper installation ensures components perform as intended and deliver optimal handling improvements. Professional installation is recommended to ensure correct setup, alignment, and overall system performance.
Shop Whiteline PROTON M21 Suspension Components
Explore Whiteline’s full range of PROTON M21 suspension and handling components designed to improve vehicle balance, steering response, and overall driving performance. Whether enhancing everyday driving or refining handling performance, Whiteline provides engineered solutions trusted by PROTON M21 drivers worldwide.
9 items
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Front Anti Roll Bar Link - Bushing Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: W21135 Benefit Note:
Worn or deteriorated link bushings although small can have considerable influence over sway bar performance and more notably vehicle handling behaviour. Whiteline bushings are engineered to last and deliver improved driving performance.Front Anti Roll Bar Link - Bushing Kit
✅ Fits PROTON M21Reduces body roll, keeping your vehicle flatter through corners; the perfect, complete upgrade. Includes: 8 BushingsIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 8 Bushings£26.90 -
Front Anti Roll Bar Link - Washer Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: KW2 Benefit Note: Has the thin galvanised metal washers on your OEM links flogged out? Whiteline have a specially designed, shaped and case hardened washers to suit the rigours wear and tear loads on sway bar link washers.Front Anti Roll Bar Link - Washer Kit
✅ Fits PROTON M21Hardened cupped washers OD=32mm, ID=10mmIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 8 Washers£14.17 -
Front Brace - Strut Tower Quick Release Clamp
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: KSB790 Benefit Note: A must for any Whiteline strut brace that is regularly removed so that you can work on the engine. This quick release clamp suits all Whiteline strut tower braces.Front Brace - Strut Tower Quick Release Clamp
✅ Fits PROTON M21Maximises grip and stability for better control; the perfect, complete upgrade. Includes: 2 ClampsIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 2 Clamps£25.61 -
Front Camber Adjusting Bolt - Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: KCA412 Benefit Note: Suffering uneven tyre wear? Sounds like poor alignment. Whiteline camber bolts provide the largest adjustment range (of up to +/- 1.5deg) to get that alignment back in check. Unlike other 'friction' lock designs we use a positive toothed lock washer which means NO SLIP. Simple to adjust and lock time after time with out slipping.Front Camber Adjusting Bolt - Kit
✅ Fits PROTON M21ℹ️ 12mm - Adds +/- 1.5deg camberCamber Adjusting Bolt - Kit 12mm - Adds +/- 1.5deg camberIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 2 Bolts£28.31 -
Front Control Arm Lower - Inner Front Bushing Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: W51988 Benefit Note:
Worn front control arm bushings have a huge influence on vehicle stability, steering precision and braking efficiency. Replace worn bushings to as new condition utilising Whiteline's advanced synthetic elastomer bushings with core characteristics ensuring superior elasticity, memory and outright durability for all forms of driving applications.Front Control Arm Lower - Inner Front Bushing Kit
✅ Fits PROTON M21Maximises tyre contact with the road, improving cornering and grip; the perfect, complete upgrade. Includes: 4 Bushings, 2 TubesIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 4 Bushings, 2 Tubes£42.48 -
Front Control Arm Lower - Inner Rear Bushing Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: KCA317X Benefit Note:
Whiteline Anti Lift Kits are primarily designed to improve traction and cornering grip under power. Increasing static caster to both front wheels. The special low compliance bushings reduce caster wind-back and maintain tighter tolerances between static and dynamic alignment settings. The additional caster coupled with the firmer bushings serve to dramatically sharpen initial turn-in response - forcing more consistent alignment angles through the corner due to the reduced bush compliance.Front Control Arm Lower - Inner Rear Bushing Kit
✅ Fits PROTON M21ℹ️ Performance Alignment - Adds +0.5deg caster + anti-liftMaximises tyre contact with the road, improving cornering and grip; the perfect, complete upgrade. Includes: 2 BushingsIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 2 Bushings£51.37 -
Rear Control Arm Upper - Outer Bushing Kit
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: W62192 Benefit Note:
Suffering uneven tyre wear, unbalanced braking or a less predictable vehicle while cornering. It could be your suspension bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings with core characteristics ensuring superior elasticity, memory and outright durability that offer a safer more predictable vehicle.Rear Control Arm Upper - Outer Bushing Kit
✅ Fits PROTON M21ℹ️ Fitter friendly designBoosts handling and performance, while optimising suspension geometry; the perfect, complete upgrade. Includes: 2 Bushings & 2 TubesIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 2 Bushings, 2 Tubes£55.22 -
Universal Tyre Valve Caps Whiteline 'W' Branded
✅ Fits PROTON M21In StockShips within 48hrs.Ships within 48hrs.SKU: KWM074 Benefit Note: Stylish and functional universal dress up accessory. Anodized black with black on yellow Whiteline logo.Universal Tyre Valve Caps Whiteline 'W' Branded
✅ Fits PROTON M21Creates a consistent drive no matter the surface; the perfect, complete upgrade. Includes: 4 Valve CapsIn StockShips within 48hrs.Ships within 48hrs.Qty Required 1Kit Contents 4 Valve Caps£8.41 -
Whiteline Bushing and Bearing Press Tool Kit
✅ Fits PROTON M21Pre-OrderAvailable for Preorder. Ships within 4-6 weeks.Available for Preorder. Ships within 4-6 weeks.SKU: WTK001 Kit Contains:- 18 x sleeves - 28mm-113mm diameter (5mm increments)
- 4 x press plates
- 4 x pulling spindles covering bolt sizes (M10, M12, M14, M16)
- Rolled thread on spindles
- Nuts with double washers and encapsulated lubricated ball bearings for strength and longevity (stops nut from binding and stripping thread)
Whiteline Bushing and Bearing Press Tool Kit
✅ Fits PROTON M21ℹ️ 26 Piece press in/out tool kitEnables safe and efficient bushing removal and installation; ideal for workshop or field use. Includes: 18 sleeves (113mm in 5mm steps), 4 press plates & 4 pulling spindles (M10, M12, M14, M16).Pre-OrderAvailable for Preorder. Ships within 4-6 weeks.Available for Preorder. Ships within 4-6 weeks.Qty Required 1Kit Contents 18 Tubes, 4 Stepped Plates, 4 Threaded Rods, 4 Spare Bearings, 8 Spare Bearing Plates£421.19
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Clear all- Strut Braces 1
- Suspension Bushes 5
- Alignment Bushes 1
- Anti Roll Bar Bushes 2
- Control Arm Bushes 3
- Shock Absorber Bushes 1
- Suspension Parts 6
- Alignment Parts 2
- Camber Bolts 1
- Chassis Parts 1
- Chassis Bracing & Strengthening Kits 1
- Strut Brace Parts 1
- Universal Parts 4
- Universal Anti Roll Bar Link Bushes & Washers 1
- Universal Anti Roll Bar Links 1
- Anti Roll Bar Link Washers 1
- Universal Camber Bolts 1
- Universal Strut Brace Parts 1
- Universal Valve Caps 1
- Merchandise 1
- Accessories 1
- Car Accessories 1
- Valve Caps 1
- Automotive Tools 1
- Bushing & Bearing Press Tool Kits 1
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