Mini One N12B14A 1.4L engine for sale

Mini One N12B14A 1.4L DOHC Valvetronic Petrol Engine

Power unit engineered, used efficient power engine For Sale.

The Mini One N12B14A 1.4L engine is also a refined and efficient power unit designed to deliver smooth performance, excellent fuel economy, and dependable everyday driving.

Developed as part of BMW and MINI’s naturally aspirated engine lineup, this engine is ideal for drivers seeking reliability, low running costs, and factory-correct replacement quality. Serves also as a second hand engine for sale, great for restoration projects or direct replacement applications.

The N12B14A engine was commonly fitted to Mini One models, including the Mini One R56 Hatch (2007–2010) and select Mini One Clubman R55 variants, depending on market specification. It is engineered to integrate seamlessly with MINI’s lightweight chassis, providing balanced handling and responsive throttle control.

This engine is compatible with vehicles originally with the N12 1.4L platform furthermore making it a practical and straightforward swap when correct engine codes and ancillaries matches.

Specifications, Common weaknesses and Maintenance.

From a technical perspective, the N12B14A is a 1.4-liter inline-4 petrol engine with Double Overhead Camshafts (DOHC) and 16 valves. It features Valvetronic variable valve lift technology combined with distributed fuel injection, optimizing airflow and combustion efficiency.

Power output averages around 70–75 kW, with torque delivery tuned for urban and highway driving. The aluminum construction helps reduce weight, improving fuel efficiency and overall vehicle balance.

Like most naturally aspirated MINI engines of this era, the N12B14A has some common weaknesses to be aware of. These may include timing chain stretch over high mileage, oil consumption if you extend service intervals, and valvetronic sensor or actuator wear over time.

Cooling system components such as thermostats and plastic housings may also degrade with age. Regular oil changes using manufacturer-approved oil, timely timing inspections, and proactive cooling system maintenance significantly improve long-term reliability.

Overall, the Mini One N12B14A 1.4L engine remains a solid, economical choice for owners seeking a dependable OEM-spec replacement. When properly maintained and professionally installed, it offers smooth operation, proven engineering, and long service life furthermore making it a smart investment for your Mini One.