BMW E87 E90 Oil Sump Engine Suction Pipe Strainer Hose N46 Petrol 7500328

BMW E87 E90 Oil Sump Engine Suction Pipe Strainer Hose is an original lubrication system component designed for BMW N46 series petrol engines used in E87 and E90 models. It is responsible for the reliable suction of oil from the oil sump and its stable delivery to the oil pump, which is crucial for the durability of the power unit. Thanks to its factory geometry and fitment, this hose ensures proper oil circulation and safe engine operation under various load conditions.

Specifications and technical data

• SKU: 7500328
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7500328
• Substitutable numbers: 11417500328, 7500328, BG
• Fuel type: Petrol
• Category: Power Steering Pumps

Function and role in the lubrication system

The oil pump strainer in the N46 engine is responsible for drawing oil from the lowest point of the sump and delivering it to the pump at the appropriate pressure. The hose and pipe used in it create a sealed flow channel that reduces the risk of cavitation, aeration, and oil pressure drops. In BMW petrol units, a properly functioning strainer is particularly important at higher RPMs, where stable lubrication of the bearings, camshaft, and timing system has a direct impact on engine lifespan.

Replacing a worn or damaged strainer hose with an original part allows for the restoration of factory oil flow parameters, which is important both after an engine overhaul and during preventive maintenance of the power unit.

Construction and fitment for BMW E87 / E90

The oil pump strainer hose in this version has been designed specifically for the architecture of the N46 engine and the geometry of the oil sump used in the BMW E87 and E90. This means:

• precise fitment to the mounting points in the engine block and oil sump,
• appropriately selected length and shape of the pipe, ensuring optimal oil suction,
• maintaining the correct distance from the bottom of the sump, which reduces the risk of sucking in contaminants.

Thanks to a design consistent with factory standards, there is no need for modifications or adjustments to the component – after proper installation, the lubrication system regains the operating characteristics designed by BMW.

Benefits of using an original strainer hose

Using a dedicated oil pump strainer hose in the N46 petrol engine brings a number of practical service and operational benefits:

• maintaining proper oil pressure across the entire RPM range,
• reducing the risk of engine seizure due to insufficient lubrication,
• better protection of moving parts during cold starts,
• consistency with BMW factory service documentation.

For workshops specializing in the BMW brand and users who care about the technical condition of their car, this is a solution consistent with the manufacturer's specifications, facilitating diagnostics and subsequent maintenance of the power unit.

Component condition and service application

The offered oil pump strainer hose is a used part, sourced from dismantling, which makes it an attractive cost alternative while maintaining the original specification. This type of component is particularly useful in situations where:

• the engine has undergone repairs after mechanical damage to the oil sump,
• it is necessary to replace lubrication system components after the unit has overheated,
• leaks or damage to the existing strainer hose have been detected.

Before installation, a standard service procedure is recommended: thorough cleaning, checking for obstructions, and assessing the condition of the seals to ensure trouble-free operation of the lubrication system after reassembling the engine.

Integration with other oil system components

The strainer hose works directly with the oil pump, oil filter, and oil channels in the engine block. As part of a comprehensive service, it is worth paying attention to:

• the condition of the oil pump and its drive,
• the cleanliness of the oil sump and the absence of sludge,
• the selection of the appropriate engine oil in accordance with BMW recommendations.

If you are planning a wider range of work on the power unit or are interested in the subject of regeneration and restoring the efficiency of engines, the article on refreshing and restoring power to modern diesel units may be helpful, as it discusses a practical approach to repairing key sub-assemblies.

Related parts and repair project development

For larger service projects, it is worth considering the simultaneous replacement of other oil system components to limit downtime and the need for repeated disassembly. In our assortment, you will also find other components from the lubrication system and engine parts group, which can complement your repair or modernization plan for the power unit.

If you need additional lines, hoses, or pipes for your BMW, check the available products in the Lines, hoses, and pipes category to select a set of components matched to your specific engine configuration and scope of service work.