The S50 engine is a 3.0-liter inline-six developed by BMW’s M Division, celebrated for its high-revving precision and smooth power delivery. Producing 286 horsepower and 236 lb-ft of torque, it powers the early E36 M3 models. Designed with individual throttle bodies and advanced VANOS, it delivers responsive performance and refined balance for both road and track.
Features
Tested Engine with Warranty
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Direct Fit for Your Vehicle
Description
The S50 engine is part of BMW’s legendary M Power lineup, first introduced in the E36 M3 during the early 1990s. It’s a 3.0-liter naturally aspirated inline-six (S50B30) producing 286 horsepower and 236 lb-ft of torque. Built with a forged crankshaft, lightweight pistons, and individual throttle bodies, this engines offers linear power delivery and razor-sharp throttle response. Its double VANOS variable valve timing optimizes torque across the rev range, making it equally capable at high RPMs and city speeds.
In Europe, the later S50B32 variant raised output to 321 horsepower, featuring dual VANOS and a higher compression ratio, setting a new standard for naturally aspirated engines of its time. The S50’s silky-smooth operation, robust construction, and tuning potential make it a top choice for restorations, E30 M3 swaps, and track conversions.
S50 fitment is specific to the European-market E36 M3 and is not interchangeable with the North American S52 without significant engine management adaptation. The S50B30 and S50B32 use different cylinder head designs and individual throttle body configurations. Our application review confirms the exact S50 variant for your build before it ships.
BMW E36 M3 enthusiasts comparing a used engine, a remanufactured engine, and an OEM engine for the S50 understand that European-spec M3 components require specialist knowledge. A used BMW S50 engine from a verified low-mileage European M3 gives you the factory individual-throttle-body inline-six as an OEM engine — the original S50-specific induction, the factory European M3 calibration — at a price that makes maintaining or building an authentic European-spec M3 the practical right decision. No remanufactured engine from an S52 core can replicate the S50’s factory identity.
Every used BMW S50 engine ships with up to a 90-day warranty and arrives within 2 to 5 business days. Installation is not included. BMW M specialist installation is required. These are genuine BMW M OEM engines, and we stand behind every unit.
Specifications
Product Type
Engine
Displacement (Engine Size)
3.0L–3.2L Inline-6
Fuel Type
Gasoline
Availability
In Stock
Shipping
Nationwide Available
Use Case
Ideal for performance builds, swaps, and replacements
Frequently Asked Questions
What vehicles were fitted with the S50 engine?
The S50 engine powered the European BMW E36 M3, available in both 3.0L and 3.2L forms, known for its racing-inspired engineering.
How much power does the BMW S50 produce?
Depending on the variant, the S50 engine produces between 286 hp and 321 hp, with responsive throttle and strong top-end pull.
Is the S50 engine reliable for daily driving?
Yes, when maintained with high-quality oil and regular VANOS service, the S50 engine can run reliably for over 200,000 miles.
Can I swap the S50 engine into an older BMW?
Absolutely. Many enthusiasts fit the S50 into E30 or E36 chassis. Pair it with a compatible used transmission for best results.
What’s the difference between S50B30 and S50B32?
The S50B32 has dual VANOS, a larger displacement (3.2L), and higher output than the original S50B30, offering improved mid-range torque and efficiency.
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Shipping Policy
Our shipping policy is flexible, as the shipping charges depend on the location. A few certain remote regions like CO, UT, NY, OR, & CA may have additional shipping charges or delivery fees. However, some circumstances may cause delays, but we always strive to deliver your order as quickly as possible.
Please note that all shipping times are estimates and not guaranteed. We examine all rebuilt and used engines before shipment and aim to provide high-quality used engines and transmissions. Shipping details and fees will be disclosed to consumers before any transactions are made. Our team is operational 24/7, and you can call us at +1-888-799-0188 to place an order.
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