Buy BMW B58 Engine Online

Enhance or restore your BMW’s performance with this OEM BMW B58B30A RWD Complete Engine, removed from a 2016 BMW 740i (VIN: WBA7E2C57GG548028). This factory original 3.0L B58M turbocharged inline-6 engine is designed for rear-wheel drive configurations and compatible with several G-chassis models including G01 X3, G12 7-Series, and G30 5-Series.

The BMW B58 engine is a turbocharged inline-6 powerhouse known for its reliability, performance, and tuning potential. Found in models like the 2016 BMW 740i (G12), X5 (G01), and 5 Series (G30 RWD), this engine delivers a perfect balance of power and efficiency.

If you’re considering a used B58 engine, this guide covers everything you need—specs, compatibility, compression tests, warranty details, and key buying considerations.

With just 119,795 miles, this engine ran and drove well prior to removal. A dry compression test shows cylinder 5 running slightly low at 142 PSI, though no performance issues were experienced while driving. Wet compression tests show improved balance across all cylinders. The engine turns freely and has no cracks in the cylinder head or block—making it an excellent candidate for replacement or performance upgrades.

Includes a 30-day standard startup warranty. All buyers must ship to a commercial address with a dock or forklift to avoid delivery surcharges.

BMW B58 Engine Specifications

• Engine Code: B58B30A (B58M)

• Configuration: Inline-6 Turbocharged, Direct Injection

• Drivetrain: RWD (Rear-Wheel Drive)

• Displacement: 3.0L

• Condition: Used, complete engine assembly (not just long block)

• Mileage: 119,795

• Compression Test (Dry): 180 | 175 | 175 | 172 | 142 | 170

• Compression Test (Wet): 195 | 182 | 185 | 182 | 173 | 180

• Original Vehicle: 2016 BMW 740i (G12)

• VIN: WBA7E2C57GG548028

• Exterior Color: Singapore Grey Metallic (B41)

• Interior: Dakota Black Leather (LCSW)

• Transmission: Automatic (not included)

• SKU: 31921

Important Warranty & Installation Notes:

• 30-Day Startup Warranty (Head and Block only)

• Must be installed by ASE-certified shop or BMW dealership

• All maintenance items (gaskets, seals, fluids, bolts) must be replaced during install

• No warranty on accessories/components like turbos, VANOS, timing system, or fuel system

• Overheating, oil starvation, or improper installation voids warranty

• Residential delivery incurs additional shipping charges

Why This Engine?

The B58B30A is one of BMW’s most advanced inline-6 platforms, praised for its smooth delivery, modular design, and tunability. Found in luxury models like the 740i and 540i, this engine combines comfort, reliability, and performance. With strong compression and no structural defects, it’s an ideal choice for a direct swap or rebuild project—whether you’re restoring a G12 7-Series or retrofitting a B58 into another compatible BMW chassis.

Should You Buy a Used B58?

The B58 is one of BMW’s best engines, offering great power and reliability. If you find one with good compression, reasonable mileage, and warranty coverage, it’s a solid choice for a swap or replacement.