BMW N55B30 Engine for Sale – Specs, Performance & Buying Guide

The BMW N55B30 engine is perhaps the greatest and most reliable straight-six turbocharged engine BMW has ever produced. It is known for its silky smooth power delivery, excellent fuel efficiency, and groundbreaking engineering. The N55B30 remains to this day one of the most sought-after performance engines, daily driver engines, and one of the most sought-after BMW engine swap models. BMW N55B30 Engines For Sale

Here at our business, we don’t just sell information—our product is BMW N55B30 engines. If you are shopping to buy a new, remanufactured, or replacement engine, our inventories have quality units that are inspected, tested, and ready to ship worldwide. BMW N55B30 Engines For Sale

Here in this ultimate guide, we will take you through the BMW N55B30 engine specs, applications, performance, cooling, maintenance, and why buying your replacement engine from us is a surety of quality and reliability. BMW N55B30 Engines For Sale

Introduction to the BMW N55B30 Engine

BMW swapped out the previous twin-turbo N54 engine for the N55B30 engine in 2009. The N55 employed a twin-scroll single turbocharger instead of the twin small turbochargers of the N54 and offered better performance and efficiency. BMW N55B30 Engines For Sale

This motor established the standard for BMW’s contemporary turbocharged inline-six range, splitting an equivalence of performance, refinement, and reliability. The N55B30 remains in widespread service in the 3 Series, 5 Series, X Series SUVs, and high-performance M models such as the M2. BMW N55B30 Engines For Sale

Customers who purchase an N55B30 engine for sale will most probably do so because of:

Proven longevity.
Stock replacement parts availability in monstrosity quantities with ease.
Massive tuning community support in the aftermarket scene.
Smooth and comfortable ride.

BMW N55B30 Engine Specs

The following are the BMW N55B30 engine specs from the manufacturer:

Engine Type: Inline-6 (Straight-Six)
Displacement: 2979 cc (3.0L)
Fuel Type: Petrol
Turbocharger: Single Twin-Scroll Turbocharger
Valvetrain: DOHC, 24 valves, Valvetronic (variable valve lift), Double-VANOS (variable camshaft timing)
Bore x Stroke: 84 mm × 89.6 mm
Compression Ratio: 10.2:1
Fuel Injection System: Direct Injection
Maximum Power Output: 302–335 hp (225–250 kW) depending on the model
Torque: 400–450 Nm (295–332 lb-ft)
Cooling System: Water-cooled with oil cooler
Emissions Standard: Euro 5 / Euro 6 (market-dependent)

This level of performance and power puts the BMW N55B30 engine at the forefront for replacement and performance tuning requests. BMW N55B30 Engines For Sale

Applications of the BMW N55B30 Engine

The N55B30 engine was utilized in various BMW models between 2009 and 2019. The most common applications are:

BMW 3 Series (F30, E90/E92/E93)

Models: 335i, 340i
Performance: Aggressive mid-range torque and quick acceleration.

BMW 5 Series (F10/F11)

Models: 535i
Performance: Luxurious balance and performance.

BMW 6 Series (F12/F13)

Models: 640i
Performance: Grand tourer smoothness.

BMW 7 Series (F01/F02)

Models: 740i
Performance: Luxurious high-end with dependable turbocharged performance.

BMW X Series SUVs

Models: X3 xDrive35i, X4 xDrive35i, X5 xDrive35i, X6 xDrive35i
Performance: Delivers plenty of torque for large SUV models.

BMW Z4 (E89)

Models: Z4 sDrive35i, sDrive35is
Performance: Turbocharged sport roadster thrill.

BMW M Models

Models: M2 (F87, older models used N55 before switching to S55)
Performance: Tuned output of 365 hp.

These are the reasons why BMW N55B30 engines for sale is so well-liked for sedan, coupe, convertible, and SUV models.

Key Features of the BMW N55B30 Engine

The N55 had several upgrades from its predecessor, thus a very modern and powerful engine choice:

Twin-Scroll Turbocharger – Is free of turbo lag while being more efficient.
Valvetronic Technology – Maximizes throttle response and fuel economy.
Double-VANOS – Provides variable valve timing for peak performance.
Direct Injection – Maximizes combustion efficiency and power output.
Lightweight Aluminum Block & Head – Provides light weight without strength compromise.

All of these technologies make the N55B30 engine not only powerful, but smooth, efficient, and versatile enough to be used in other BMW models. BMW N55B30 Engines For Sale

Why Purchase a BMW N55B30 Engine from Us?

We don’t do just technical specs—We sell the BMW N55B30 engine and give you the best value for money.

✅ What We Do:

Quality Engines – Used, reconditioned, and brand-new engines to your specification.
Rigorous Testing & Inspection – Every engine is performance-tested before delivery.
Global Shipping – Safe and timely global delivery.
Competitive Price – Low price with no compromise on quality.
Expert Recommendation – Our specialists help you choose the right N55B30 model for your BMW.

You don’t buy an engine when you buy from us—you buy BMW power and reliability. BMW N55B30 Engines For Sale

Maintenance & Durability of the BMW N55B30

Like any BMW engine, the N55B30 needs regular maintenance to last in the long run.

Recommended Periodic Maintenance:

Change oil every 7,500–10,000 km.
High-quality synthetic oil is mandatory.
Replace cooling fluid every 50,000 km.
Turbo system and oil cooler regular check.
Spark plug replacement every 40,000–50,000 km.

Known Issues (and Why Our Engines Are Reliable):

Valve cover gasket leakage (common to most BMW engines).
Water pump failure at around 80,000–100,000 km.
High-pressure fuel pump failure (particularly early models).

When you purchase a reconditioned BMW N55B30 engine from us, these problems are addressed as part of the reconditioning process so that you receive a drive-away, guaranteed engine. BMW N55B30 Engines For Sale

Specifications at a Glance

Here is a quick rundown of the N55B30 engine fundamentals:

Feature	Specification
Engine Type	Turbocharged Inline-6
Displacement	2979 cc (3.0L)
Turbocharger	Single Twin-Scroll
Valvetrain	DOHC, 24 valves, Valvetronic, Double-VANOS
Compression Ratio	10.2:1
Power Output	302–335 hp
Torque	400–450 Nm
Fuel Injection	Direct Injection
Cooling System	Water-cooled with oil cooler

Why the BMW N55B30 Engine Is So Popular

The N55B30 gets the perfect combination of performance, economy, and reliability. As a successor to its own predecessor (the N54), it got rid of dozens of reliability problems while preserving high aftermarket tuning potential. BMW N55B30 Engines For Sale

Enthusiasts and daily BMW drivers continue to seek out the N55B30 engine for sale simply because it:

Delivers jaw-dropping horsepower with tunability.
Offers silky-smooth inline-six refinement.
Demonstrated reliability when properly maintained.
Powers a wide range of BMW sedans, coupes, SUVs, and sports cars. BMW N55B30 Engines For Sale

BMW N55B30 Engine for Sale – Your Best Bet

If you’re searching for BMW N55B30 engines for sale, you’ve come to the right spot. We sell new and remanufactured BMW engines, inspected and installation-ready.

If you need an engine for your BMW 335i, 535i, X5, Z4, or even BMW M2, we carry the right N55B30 engine for you.

👉 Get a quote on BMW N55B30 engine for sale today.

Our discounted prices, international shipping, and knowledgeable customer service ensure you can be confident you’re getting the best deal on your next BMW engine. BMW N55B30 Engines For Sale

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The following are the BMW N55B30 engine specs from the manufacturer:

Engine Type: Inline-6 (Straight-Six)

Displacement: 2979 cc (3.0L)

Fuel Type: Petrol

Turbocharger: Single Twin-Scroll Turbocharger

Valvetrain: DOHC, 24 valves, Valvetronic (variable valve lift), Double-VANOS (variable camshaft timing)

Bore x Stroke: 84 mm × 89.6 mm

Compression Ratio: 10.2:1

Fuel Injection System: Direct Injection

Maximum Power Output: 302–335 hp (225–250 kW) depending on the model

Torque: 400–450 Nm (295–332 lb-ft)

Cooling System: Water-cooled with oil cooler

Emissions Standard: Euro 5 / Euro 6 (market-dependent)”,
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