BMW 4 Series 420d Front Brake Discs 312 mm by Tarox (inc xDrive) — Performance Vented Upgrade
Upgrade the stopping power on your BMW 4 Series 420d with premium Tarox front brake discs. Perfect for daily road use and spirited driving, and proven on fast road and track days, these 312 mm vented performance brake discs deliver confident braking, cooler running and outstanding pedal feel. Ideal for BMW 420d owners searching for front brake discs, front brake rotors, performance brake upgrade, grooved brake discs, or drilled and grooved discs for BMW 4 Series 420d inc xDrive.
Disc type: Vented
Disc size: 312 mm
Why choose Tarox performance discs for your BMW 420d?
- Based on OE specification castings and designed for straightforward fitment to the front axle of BMW 4 Series 420d models including xDrive.
- Stringently quality controlled blanks, heat treated after each machining phase for exceptional strength and durability.
- Precision CNC machining for perfect geometry and balance.
- Individually surface ground by hand to a near-mirror finish with a tolerance approaching 0.015 mm for ultra-smooth, quiet braking.
- Cooler running and reduced risk of fade, vibration and warping under hard use.
- TÜV approved castings; many applications carry TÜV and ABE approvals.
We run Tarox brake discs on our own builds and they are a customer favourite at Nforcd thanks to their consistent bite, superior modulation and impressive heat management. Pair with Tarox pads for the best results; for track day use, Tarox Corsa pads are a superb match.
Choose your Tarox disc style
Tarox G88 — Maximum cooling and bite
The iconic G88 features multiple radial grooves cut on custom-built machinery. These deep, precision grooves create a turbine effect to pull heat and gases away from the pad surface, helping the discs run cooler and reducing the likelihood of fade, warping, vibration or cracking. G88 discs are heat treated, based on OE spec castings, and hand finished.
Tarox F2000 — Track-capable, road-friendly
F2000 curved grooves deglaze pads and manage heat effectively with fewer, optimally placed slots. This strikes the perfect balance between cooling and structural strength, making F2000 ideal for fast road cars that also see serious track sessions. Heat treated, OE spec castings, hand finished.
Tarox Sport Japan — Drilled and grooved
Sport Japan discs combine fully drilled, countersunk holes with six wide grooves. The through-drilling effectively vents gases that cause brake fade, while the grooves keep pads clean and consistent. Based on OE spec castings, heat treated and hand finished. Many applications are TÜV approved.
Perfect for
- BMW 4 Series 420d front brake disc replacement and upgrade (312 mm, inc xDrive).
- Owners seeking improved braking performance, stronger bite and reduced fade.
- Fast road and track day use with Tarox pads for optimal performance.
Fitting and support
Want professional installation? Book fitting with Nforcd in Warwickshire. Request a quote: Sales@nforcd.com.
Helpful notes
- Please confirm your existing front disc diameter is 312 mm before ordering.
- Designed around original equipment specification for straightforward fitment to BMW 4 Series 420d front axle, including xDrive models.
- For best results and bedding-in, use with Tarox brake pads.
Buy your BMW 420d front brake discs today and transform your brake performance with Tarox — the trusted choice for high performance, vented, grooved and drilled brake discs for BMW 4 Series 420d including xDrive, 312 mm.