The Volvo S40 1.8 Engine (B4184S) is a reliable and efficient petrol engine designed to deliver smooth performance and long-lasting durability. This 1.8L inline 4-cylinder 16-valve engine is commonly used in the Volvo S40, offering a balance of power, fuel efficiency, and consistent performance for city and highway driving.
Equipped with DOHC 16-valve technology and multi-point fuel injection (MPFI), the B4184S engine produces around 115–120 horsepower and 160–170 Nm of torque, providing responsive acceleration and smooth handling.
Built with a cast iron block and aluminum cylinder head, this engine ensures long-term reliability and low maintenance costs. It uses a timing belt system, which should be serviced according to Volvo’s recommended intervals.
Supplied as a complete engine (long block or full assembly), it typically includes:
- Engine block
- Cylinder head
- Pistons and crankshaft
- Camshaft system
- Intake and fuel system
⚠️ External components such as alternator, starter motor, AC compressor, and sensors may need to be transferred from your existing engine.
This engine is ideal for:
- Replacing worn or damaged engines in Volvo S40 models
- High-mileage vehicles seeking reliable performance
- Drivers looking for smooth and fuel-efficient daily driving
⚙️ Key Features
- 1.8L inline 4-cylinder petrol engine
- Engine code: B4184S
- DOHC 16-valve configuration
- Multi-point fuel injection (MPFI)
- Smooth and reliable acceleration
- Durable cast iron block + aluminum head
- OEM replacement engine
🚗 Vehicle Compatibility
- Volvo S40 1.8 16V
- Some Volvo V40 1.8 models
- Other Volvo vehicles using B4184S engine
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