Guangzhou Honghui Auto Parts Co., Ltd.
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B-M-W N46 Engine Oil pump 318 320 E46 E90 E42 X1 Z4 N42 Original used auto parts
Design:
Gear-driven pump with aluminum housing and hardened steel gears.
Includes pressure relief valve to regulate oil flow.
Flow Rate:
~25–30 liters/minute at 6,000 RPM (varies with engine condition).
Oil Pressure:
3–5 bar at operating temperature (idle: ~1.5–2 bar).
OEM Authenticity:
Genuine BMW part, designed for the N46 engine (used in models like E46 3 Series, E90 3 Series, and 1 Series). Ensures precise fitment and reliable performance.
Critical Functionality:
Maintains proper oil pressure (3–5 bar at operating RPM) to prevent engine damage, crucial for the N46’s longevity given its history of timing chain and oil system issues.
Cost Savings:
Significantly cheaper than a new OEM pump while retaining BMW’s engineering standards (ideal for budget-conscious repairs/rebuilds).
Condition:
Minimal wear (e.g., intact gears, no scoring on housing, functional pressure relief valve). Tested for smooth operation and absence of leaks.
Rarity:
Original N46 oil pumps are increasingly scarce in good condition, raising value for restorations or OEM-focused repairs.
Compatibility:
Fits N46 engines in 316i, 318i, 320i, and 320si models (confirm part number for exact application).
Description
Please note that all items labeled "used" have been used and may bear minor scratches and scuff marks. However,
they are fully functional and functional. We recommend viewing the pictures provided before purchasing to make sure
you are happy with the condition of the item.
All components are tested before or after they are removed from the vehicle. Please note that this part is a previously
installed second hand item. The items shown in the image are accurate items provided in this list, unless otherwise stated
in the item description.
Before making a purchase, make sure that the part codes and body panels you purchase match the parts of the vehicle
you are trying to repair.
Most electronic parts (ECUs, modules, headlights, etc.) may require coding/programming
If you need any additional parts, please contact us before placing your order. We will be more than happy to check if we
have any other items you may need. Discounts are available for multiple purchases.