BMW E46 Engine Crankshaft N42B18 Petrol 316i 316ti 0142286

BMW E46 Engine Crankshaft N42B18 316i 316ti is an original component from the Crankshafts group, designed for N42B18 petrol engines. This type of used crankshaft allows for a technical, cost-effective, and factory-compliant repair of the bottom end of the engine in BMW 316i and 316ti models.

Specifications and technical data

• SKU: N42B18-CRANKSHAFT
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: N42B18-CRANKSHAFT
• Substitutable numbers: 0142286
• Fuel type: Petrol
• Category: Crankshafts

Purpose and compatibility

The presented crankshaft is designed to work in the N42B18 petrol engine used in the BMW 3 Series E46 in 316i and 316ti versions. The design of the crankshaft is adapted to the characteristics of the petrol unit, ensuring proper rigidity, balance, and cooperation with the crank-piston system and main bearings.

By maintaining factory geometry and parameters, this component allows for the restoration of proper engine operation after damage or excessive wear of the previous crankshaft, without the need for aftermarket solutions of uncertain quality.

Technical characteristics of the crankshaft

The crankshaft from the N42B18 family is one of the key components of the crank system, responsible for converting the reciprocating motion of the pistons into rotational motion transmitted to the gearbox. It is made of a material with high fatigue strength, adapted to operate under variable loads and high rotational speeds typical of petrol engines.

The arrangement of main and connecting rod journals, oil passages, and surfaces cooperating with bearings is in accordance with BMW factory specifications, which promotes stable oil pressure and uniform lubrication. Proper balancing of the crankshaft reduces vibrations, which translates into the engine's smooth operation and lower stress on other engine components.

Condition, application, and benefits of installation

The offered component comes from disassembly and is in used condition, which allows for a cost-effective restoration of engine efficiency while maintaining the original manufacturer's specifications. Before installation, standard workshop verification is recommended – checking runout, journal surfaces, and potential sizing for bearings, in accordance with BMW service procedures.

Using an original crankshaft in the N42B18 engine brings a number of practical benefits:

• maintaining the factory operating parameters of the engine,
• reliable fitment to the block, connecting rods, and lubrication system,
• reducing the risk of balancing and vibration issues,
• possibility of economical repair compared to purchasing a new component.

BMW crankshafts – expansion and modernization of the crank system

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as additional shafts, components cooperating with the crank system, or parts for other engine units, check the available parts in the BMW Crankshafts category.

Practical tips when buying used engine components

When selecting a used crankshaft for a BMW E46, it is worth paying attention to compatibility with the specific engine version, service history, and the condition of the working surfaces. It is good practice to combine the purchase with a professional workshop assessment, which minimizes the risk of subsequent operational problems.

If you are also considering replacing the entire engine or other key components, a practical guide on buying used engines may be helpful – you can find it in the article How to buy a used car engine and avoid a bad deal – a step-by-step guide, which discusses step-by-step what to look for when choosing components from the secondary market.