OEM BMW B58 Gen 2 Engine Long Block

Looking for a high-performance OEM replacement engine for your BMW G20, G22, or G23 M340i/M440i RWD? This genuine BMW B58B30O1 Gen 2 Long Block Engine is your perfect solution. Sourced from a meticulously maintained 2022 BMW M340i (VIN: 3MW5U7J04N8C25002), this engine comes with only 33,870 original miles and has undergone a thorough compression test (readings: 190-185-181-188-183-180), confirming excellent cylinder health and internal integrity.

The B58 Gen 2 engine represents the pinnacle of BMW’s modular engine design, delivering enhanced cooling, stronger internals, and increased efficiency over the previous generation. This particular long block comes from a Sunset Orange Metallic (C1X) M340i featuring Cognac Sensatec interior, showcasing not only performance pedigree but also high-end spec lineage.

Engine Details:

• Engine Code: B58B30O1 (Gen 2)

• Mileage: 33,870 miles

• Original Vehicle: 2022 BMW M340i RWD (G20)

• Transmission: Automatic

• Exterior Color: Sunset Orange Metallic (C1X)

• Interior: Cognac Sensatec (KHKC)

• VIN: 3MW5U7J04N8C25002

• SKU: 35643

• Compression Test Results: 190 / 185 / 181 / 188 / 183 / 180 PSI

• Shipping Note: Commercial address with forklift/loading dock required. Residential delivery incurs extra fees.

Warranty Information:

• 30-Day Engine Warranty

• Warranty covers the long block (cylinder block & head) integrity only.

• Engine guaranteed to turn; no cracks in the head or block.

• Buyer must replace all maintenance items (gaskets, seals, fluids, spark plugs, etc.).

• Use of aftermarket parts or failure to replace key gaskets and bolts voids warranty.

• Work must be completed by an ASE-certified shop or BMW dealership.

Please note: This is a used engine. While fully functional and tested, it may show signs of previous use such as cosmetic wear. Any ancillary parts attached to the engine (pumps, sensors, harnesses, etc.) are included for installation convenience only and are not covered under warranty.

Fitment Compatibility: Fits 2019–2023 BMW G20, G22, and G23 platforms equipped with B58 Gen 2 engines for RWD configurations. Buyer is responsible for ensuring fitment prior to purchase.

Shipping Notes: Due to the engine’s weight and freight size, delivery requires a commercial shipping address with a forklift or loading dock. Residential or limited access deliveries are subject to additional fees.

Why Choose This Engine?

• Genuine OEM, not aftermarket

• Direct plug-and-play for BMW M340i/M440i RWD models

• Thoroughly tested, verified compression

• Excellent mileage and condition

• Sourced from a single-owner, 2022 BMW

Boost your BMW’s performance with confidence by choosing this low-mileage, Gen 2 OEM BMW B58 engine—engineered for longevity, tuned for excitement.

Need Help? Contact us anytime for fitment assistance or additional photos!