Differential Assembly – ALPINA B4 Gran Coupé 2022-2024 – B4 Gran Coupé

Original catalogue description (not independently verified). Contact us to confirm the supplied part, engine and fitment before purchase.

Catalogue family: ALPINA B4 Gran Coupé | 2022-2024 | B4 Gran Coupé.

Product:
- Differential Assembly
- Category: Driveline
- Sub Category: Differential
- Position: Rear / driven axle
- Preferred brands: BMW/ALPINA Genuine / GKN / ZF / Schaeffler / SKF

Vehicle / Powertrain:
- Engine: 3.0L S58 B30A ALPINA Bi-Turbo inline-6, 480–495 hp class
- Transmission: ZF 8HP76 SWITCH-TRONIC
- Drive: AWD
- BMW chassis: G26
- Architecture: GASOLINE

ALPINA Fitment Discipline:
- Verify ALPINA production number and BMW VIN together.
- Confirm exact ALPINA engine type/base BMW engine code, transmission, RWD/xDrive, brake option, adaptive-damper/spring calibration, wheel size, cooling package, exhaust and body/aero specification.
- Do not assume a base BMW component fits simply because the chassis code is shared.

OEM / Manufacturer Reference:
- Exact ALPINA/BMW OE or traceable aftermarket reference is not yet verified for this exact ALPINA production number/chassis/powertrain combination; row remains unpublished.
- No internal MAP SKU is used as OEM Number and no identifier is invented.

Pricing:
- Brand New Price is a MAP Africa USD planning benchmark for premium ALPINA/BMW/OE-quality replacement parts, adjusted by rarity, powertrain and chassis class.
- Price confidence: MEDIUM planning benchmark; exact supplier quote required before final retail pricing.
- Used/refurbished/OEM-reman fields are populated only where commercially realistic.
- Brand New Stock 100 is planning stock, not a live inventory claim.

Model source: https://www.bmwgroup.com/en/news/general/2026/bmw-alpina.html
Checked: 2026-09-05.

Confirm the exact vehicle configuration before installation. Professional installation is recommended where required.

This listing is an enquiry: check engine, transmission, year, position and part reference with our team first.

Warranty terms depend on the selected condition and supplier policy.

Delivery time and return eligibility depend on destination, stock location and order type.