Is the product quality guaranteed?

Yes, all products are 100% tested with both visual and functional inspections before shipment.

What is the material of the crankshaft?

The crankshaft is made of high-quality casting alloy.

Which shipping methods are available?

We ship via UPS, DHL, FedEx, and TNT from Shenzhen Port.

N52b25 for BMW Petrol Engine Crankshaft OE 11210402531 N52 Engine E90 E91

Name: N52b25 for BMW Petrol Engine Crankshaft OE 11210402531 N52 Engine E90 E91
Brand: Guiyang Baiyun Alloy Casting Factory
SKU: 2072168235

Guizhou, ChinaGuiyang Baiyun Alloy Casting Factory

US$300.00

1-49 Pieces

US$250.00

50+ Pieces

Sample price:US$300.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

One Year

Application

Car

Model NO.

N52B25

Certification

ISO 9001

Warranty

12 Months

Engine Type

Gasoline

Material

Casting Alloy

Brand

Stem

G.W.

22kg

Size

Standard Size

Engine

N52b25 for BMW

Length

606.5mm

Product Name

N52b25 Crankshaft

Main Journal

56mm

Rod Journal

50mm

Stroke

79mm

OE No.

11210402531

MOQ

1 Piece

Quality

100% Tested

Car Make

for BMW

Model

N52b25

Shipping Method

UPS,DHL,FedEx,TNT

Transport Package

Carton, Wooden Box, Customized

Specification

Alloy

Trademark

Stem

Origin

Guizhou, China

HS Code

8409919990

Production Capacity

10000/Month

Key features

OEM/ODM Customization: Supports full customization from samples, designs, and flexible minor adjustments.

100% Quality Inspection: Every crankshaft undergoes strict visual and functional inspection before shipping.

25 Years Export Experience: Established in 1997 with 25 years of professional manufacturing and export history.

Fast Lead Time: Consistent 15 workdays lead time for both peak and off-season orders.

ISO 9001 Certified: Manufacturing process meets international ISO 9001 quality management standards.

Low MOQ: Minimum order quantity is just 1 piece, suitable for testing and small batches.

Multiple Payment Options: Accepts T/T, LC, PayPal, Western Union, and small-amount payments.

Global Shipping: Reliable logistics via UPS, DHL, FedEx, and TNT from Shenzhen Port.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceFull CustomizationManagement Certification

Guiyang Baiyun Alloy Casting Factory

Guizhou, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 25 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤6.40h

AI-Powered supplier vetting

SummaryGuiyang Baiyun Alloy Casting Factory is a China-based, state-owned crankshaft manufacturer established in 1997, with reported operations dating to 1992 and more than three decades of crankshaft-material experience. It operates a 13,218 m² plant, has 84 employees, and reports annual productivity of 80,000 pieces across American, German, Japanese, and Korean series. The supplier holds an ISO 9001:2015 management-system certificate and reports 11–20 quality-control staff. It claims OE-manufacturer quality standards and a one-year/100,000-kilometer crankshaft guarantee, but the broader after-sales-service capabilities are not verified. R&D, customization, traceability, overseas infrastructure, and several operational controls remain insufficiently documented. A BV audit is recorded with an evaluation result of 0 and a stated validity period from April 28, 2024 to April 27, 2025; the meaning of the result is not defined in the provided data.

Supplier typeThe supplier is identified as Guiyang Baiyun Alloy Casting Factory, a state-owned Chinese company focused on crankshaft production for automotive aftermarket applications and auto/motorcycle parts. Its reported operating history spans more than three decades, indicating a specialized manufacturing profile rather than a general trading business.

CertificationsThe supplier reports an ISO 9001:2015 certificate. A BV audit is also recorded, but the audit result is listed as 0 without an interpretation, so the audit record cannot independently establish a positive compliance outcome.

After-Sales capabilityThe supplier states that its crankshafts are covered by a one-year and 100,000-kilometer guarantee for regular use and describes service to a global market. However, specific repair, replacement, response-time, or overseas support capabilities are not provided.

R&D capabilityThe supplier reports more than three decades of crankshaft-material research, production, and development, plus three years of total R&D engineer experience and a focus on high-end and modified-engine crankshafts. Specific new-product launches, R&D documentation, SDKs, 3D design, or other structured innovation outputs remain unknown.

Production capacityThe supplier reports a 13,218 m² manufacturing plant, 84 employees, and annual productivity totaling 80,000 pieces across four regional product series. These stated facilities and capacity figures provide explicit evidence of established production capability.