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3-60 days
Shanghai, Ningbo, as your reqirements
Distributors, Wholesalers
Specific materials, packaging and branding
50-100
IATF 16949/ISO 9001/ISO 14001/CE
12 Months
Brand / Neutral / Customized Packaging
100% T/T in advance
Subject to Credit Vetting and Order Volume
Product Description
Wholesale OE-quality Thermostat Assembly for popular BMW M54/M52TU engines (E46, E39, E60, etc.). Replaces P/N 11537509227 and 11530139877. Features 97℃ opening temp and electronic control. Available for bulk purchase with global shipping.
Key Product Details:Part Numbers: 11537509227 (latest P/N) and 11530139877 (common P/N).
Engine Coverage: Critical for the highly demanded M54 and M52TU straight-six gasoline engines.
Vehicle Applications: Broad range including E46 3-Series, E39/E60 5-Series, E83 X3, and E53 X5 (3.0i).
Feature: Electrically controlled thermostat opening at 97℃. This is a high-volume, high-turnover replacement part due to frequent electronic failure in these platforms.
| Product Name | BMW Thermostat Assembly Replacement for 320i/323i/328i/X3/Z3 |
| Items Included | 1 X Standard Thermostat |
| TEMP | 97℃ |
| Features | 100% Tested |
| Warranty | 12 Months |
| Applicaiton | BMW 2.5L, 2.8L, 3.0L. 2.5L, 3.0L (2003-05) |
| Weight | 12.8 ounces |
| Dimension | 19x9.7x13.5 cm |
| Packaging | Brand / Neutral / Customized Packaging |
| Associated Part Numbers | 11537509227/11530139877 |
| BMW Chassis | Model | Engine Code | Engine Displacement | Production Year |
| E46 | 3 Series (323i, 325i, 330i, etc.) | M52TU / M54 / M56 | 2.5L, 2.8L, 3.0L | Covers most E46 models from late 1998 onwards. |
| E39 | 5 Series (525i, 528i, 530i) | M52TU / M54 | 2.5L, 2.8L, 3.0L | 528i: From 09/1998 production date. |
| E60 | 5 Series (525i, 530i) | M54 | 2.5L, 3.0L | Covers early E60 models with M54 engine. |
| E83 | X3 (2.5i, 3.0i) | M54 | 2.5L, 3.0L | All M54 X3 models. |
| E53 | X5 (3.0i) | M54 | 3.0L | All M54 X5 models. |
| Z3 | Z3 Roadster / Coupe | M52TU / M54 | 2.5L, 2.8L, 3.0L | Z3 2.8: From 09/1998 production date. |
| E85 | Z4 Roadster (2.5i, 3.0i) | M54 | 2.5L, 3.0L | All M54 Z4 models. |
Elecdura operates advanced production lines for automotive thermostats, ensuring every part meets OEM and aftermarket standards. From assembly to final testing, each step is handled with strict quality control to guarantee consistent performance and reliability.
Elecdura Thermostat Manufacturing Workshop Overview
Quality Control Inspection of Thermostat Manufacturing Process
Engine Thermostat Testing Station in Elecdura Factory
Skilled Workers Assembling Engine Thermostats at Elecdura
Thermostat Assembly Line in Automotive Cooling Parts Factory
Automotive Thermostat Production Equipment in Operation
Elecdura thermostats are produced using high-grade aluminum alloys and reinforced polymer materials, providing excellent resistance to heat and corrosion. Each unit is precisely calibrated to ensure stable temperature control and extended service life across various engine types.
Aluminum engine thermostat housing with polished finish
Close-up of Elecdura thermostat component materials
High-quality automotive thermostat construction details
Reinforced polymer thermostat body with matte surface
Equipped with a wide range of molds, Elecdura can develop new thermostat models quickly to meet diverse OEM and aftermarket demands. We support custom design and private labeling to help our partners expand their product lines efficiently.
Customized thermostat mold development for OEM projects
Thermostat molds and tooling equipment in Elecdura workshop
Every batch of Elecdura thermostats undergoes comprehensive inspection and functional testing. Our production capability supports stable bulk supply for global distributors, ensuring timely delivery and consistent product reliability.
Bulk thermostat products ready for packaging at Elecdura
Rows of finished automotive thermostats in inspection area
Thermostat units arranged for quality verification
ISO 14001
ISO 45001
CE
MSDS
Elecdura collaborates with leading distributors and brands worldwide — helping our partners dominate their local aftermarket. Through professional sourcing, customized product development, and close market research, we've supported clients in becoming the Top 1 aftermarket suppliers in South America. Our integrated marketing and supply capabilities make us more than a factory — we're your strategic growth partner.
Distributor partnership meeting for aftermarket product planning
Successful client collaboration showcased at trade fair booth
Elecdura with international buyer in Brazil Exhibition
Elecdura assisting South American client in aftermarket development
Elecdura team and partners at international auto parts exhibition
Warehouse of Elecdura global partner displaying stocked oil coolers
1. Requirement Discussion
Our sales team will carefully understand your market needs, target vehicle models, and whether the products must meet your country's import standards and certifications, ensuring compliance from the very beginning.
2. Solution & Design
Based on your requirements (such as OEM standards, private labeling, or packaging customization), our engineering team will provide a tailored technical solution and professional advice backed by market experience.
3. Sample Approval
We will provide product samples for your testing. If needed, we can support third-party testing and certification to guarantee legal compliance and suitability in your market.
4. Trial Production
Before mass production, we conduct small-batch production so you can verify stability, compatibility, and collect market feedback, minimizing the risks of large-scale orders.
5. Mass Production
Once approved, we move into bulk production under strict quality control and final inspections, ensuring product consistency across every batch.
6. On-time Delivery
We coordinate the most efficient logistics and customs clearance solutions based on your port or warehouse requirements, making sure the goods arrive safely and on time.
From Latin America to Europe, from Asia to the Middle East, our products are recognized by customers around the globe. By ensuring that every item complies with local regulations and quality standards, we help importers enter their markets with confidence. Let's work hand in hand to open new markets and create long-term success.
The replacement kit fits BMW 320i, 323i, 328i, X3, and Z3 models across multiple production years. It maintains precise coolant temperature regulation and ensures OEM-compliant coolant flow for optimal engine performance.
High-precision wax thermostat element for accurate opening
Housing and gasket for leak-free installation
Temperature sensor for ECU communication and accurate coolant monitoring
Materials include durable brass, stainless steel, and high-quality polymer components
Designed to withstand thermal cycling and high-pressure coolant systems
These features guarantee stable engine operating temperature, reduced wear, and consistent heater performance.
Engine overheating under normal operation
Coolant temperature fluctuations or erratic gauge readings
Heater inefficiency inside the cabin
Coolant leaks near housing or sensor connections
Timely replacement prevents engine damage, reduced cooling efficiency, and accelerated component wear.
Always replace with new OEM gaskets and seals included in the kit
Clean housing and coolant passages thoroughly before assembly
Tighten bolts according to BMW torque specifications to avoid leaks or distortion
Bleed the cooling system to remove air pockets and verify correct temperature regulation
Proper installation ensures reliable coolant circulation and long-term engine performance.
Elecdura offers wholesale supply, OEM/ODM labeling, and customized packaging for the BMW thermostat kit, suitable for distributors, workshops, and fleet maintenance companies, providing scalable supply, consistent quality, and brand customization options.
