Oil Pump
Oil Pump
The BMW N46B20 is a 2.0L inline-four naturally aspirated engine from BMW’s N46 series (produced approximately from 2004 to 2015). It features an aluminum alloy block and
cylinder head, dual VANOS, and Valvetronic variable valve lift technology, and is an improved successor to the N42. This engine was widely used in models such as the E90/E91 3 Series,
E87 1 Series, X3, and X1. The N46’s oil pump is a chain-driven rotor/gear-type oil pump (with a dual-pump design in some versions), typically used in conjunction with a balance shaft module.
The pump housing is mounted inside the oil pan and is responsible for pumping oil from the oil pan to various lubrication points to maintain stable oil pressure.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Product Name: BMW N46B20 Engine Oil Pump Assembly
Engine Code: N46B20
Engine Type: Inline 4-cylinder gasoline engine
Displacement: Approximately 2.0L; verify the specific engine version
Aspiration: Naturally aspirated
Function: Engine oil circulation and pressure supply
Main OE Reference: 11277594471, subject to vehicle-specific confirmation
Related References: 11277507646, 11277536191 and 11417559948, subject to catalog verification
Material: Housing: Aluminum alloy; Internal rotor/gear: High-strength steel
Product Condition: Remanufactured
Package Contents: Confirm whether the product is an oil pump only or includes the compensating shaft unit and related components
Warranty: 3 months
The engine oil pump draws oil from the oil pan and circulates it through the engine lubrication system. An appropriately functioning pump helps maintain oil delivery to
critical engine components, including crankshaft bearings, connecting rod bearings and cylinder head lubrication points.
For N46 applications equipped with a compensating shaft arrangement, it is important to confirm whether the replacement part includes the relevant shaft assembly.
The correct configuration depends on the original vehicle specification and OE reference.
If an engine has low oil pressure, the cause should be diagnosed before replacing the pump. Oil level, oil quality, the pickup pipe, oil passages, filters, drive components and
related sealing surfaces should also be inspected.
The N46 engine family was used in selected BMW models, including certain versions of the following vehicles:
BMW 316i / 318i – selected E46 applications
BMW 318i / 320i – selected E90 sedan applications
BMW 318i / 320i Touring – selected E91 applications
BMW 118i / 120i – selected E81 / E87 applications
BMW 120i – selected E82 / E88 applications
BMW Z4 2.0i – selected E85 applications
BMW X3 2.0i – selected E83 applications, subject to verification
The list above is provided as an application guide, not a guarantee of universal compatibility. The correct part may vary by production date, chassis, engine variant, market specification and original assembly number.
Please provide the vehicle VIN or original OE number before ordering so that the application can be checked.
The main catalog reference used for this listing is 11277594471, which is listed for selected BMW oil pump and compensating shaft unit applications.
Related catalog references may include 11277507646, 11277536191 and 11417559948. These numbers appear in related catalog or replacement histories, but they should not be treated as universally interchangeable without vehicle-specific confirmation.
Before ordering, please compare the original part number, pump configuration, mounting points, drive arrangement and supplied components.
We support B2B buyers sourcing automotive engine components for repair, rebuilding and aftermarket distribution.
B2B Supply: Inquiries from distributors, importers, repair workshops and engine rebuilders are welcome.
Fitment Assistance: Share the VIN, engine code or original OE number to help identify the correct component.
Order Coordination: Confirm quantity, product configuration, packaging and delivery requirements before ordering.
Technical Information: Available specifications and inspection documents can be discussed during the quotation process.
Wholesale Inquiries: Contact us with your required quantity and destination market for a quotation.
To help us identify the correct BMW N46B20 oil pump, please provide:
Vehicle make and model
Chassis code, such as E46, E90 or E91
Production year and month
VIN or chassis number
Engine code and original OE number
A photo of the original oil pump, if available
Required quantity and destination country
We can then review the available product details and confirm the appropriate reference before quotation.
No. Fitment can vary by production date, engine variant, chassis and original part number. Please provide the VIN or OE number for verification.
The main reference used for this listing is 11277594471 for selected oil pump and compensating shaft unit applications. Related catalog references must be checked against the specific vehicle.
The supplied configuration must be confirmed before ordering. Please check whether the item includes the compensating shaft unit, pickup pipe, sprocket, seals or other accessories.
The exact material should be confirmed from the actual product specification or supplier documentation. Contact us if a material declaration is required.
B2B customers are welcome to send their required quantity, destination country and packaging requirements for a quotation.
The VIN, production date, engine code and original OE number are recommended. A clear photo of the original part can also help with identification.
Looking for a BMW N46B20 engine oil pump or oil pump and compensating shaft unit for your automotive parts business?
Send us the vehicle details, OE reference, required quantity and destination country. We will review the application information and help you proceed with a suitable quotation.
BMW N46B20 Engine Oil Pump Assembly | OE Reference 11277594471 | B2B Automotive Parts Supply
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
