How is the quality of the crankshaft ensured?

We perform 100% inspection on finished products, including visual and functional checks, following strict QA/QC procedures.

What is the material of this crankshaft?

The crankshaft is made of cast iron.

Stem N46 Petrol Engine Crankshaft for BMW OEM 11217516040 N46b20 N43b20 Gasoline Engine for E90 E87 E92 E60

Name: Stem N46 Petrol Engine Crankshaft for BMW OEM 11217516040 N46b20 N43b20 Gasoline Engine for E90 E87 E92 E60
Brand: Guiyang Baiyun Alloy Casting Factory
SKU: 2077038205

Guizhou, ChinaGuiyang Baiyun Alloy Casting Factory

US$120.00

1-49 Pieces

US$99.00

50+ Pieces

Sample price:US$120.00/piece.Request sample

Product profile

Customization

Available

Application

Car

Certification

ISO 9001

Model NO.

N46

Warranty

12 Months

Engine Type

Gasoline

Material

Cast Iron

Stroke

90mm

Brand

Stem

G.W.

16.5kg

Size

Standard Size

Engine

N46 N43

Length

423.5mm

Product Name

Stem N46 Petrol Engine Crankshaft for BMW OEM 1121

Transport Package

Carton, Wooden Box, Customized

Specification

Alloy

Trademark

Stem

Origin

Guizhou, China

HS Code

8409919990

Production Capacity

10000/Month

Key features

OEM Quality Replacement: Direct replacement for BMW OEM 11217516040, compatible with N46B20 and N43B20 engines.

Durable Cast Iron Material: Manufactured from high-strength cast iron for superior durability and engine performance.

100% Quality Inspection: Each crankshaft undergoes visual and functional inspection to ensure zero defects.

Flexible Customization: Supports full customization, minor adjustments, and customization from samples or designs.

ISO 9001 Certified: Manufactured under strict ISO 9001 quality management standards for reliability.

Established Manufacturer: Backed by 25 years of export experience and a 13,218 sqm production facility.

Low MOQ Availability: Minimum order quantity is only 10 PCS, suitable for small batch purchases.

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.