Thermostat Assembly & Gasket 11531436386 Replacement For BMW E39 540i E38 740iL 740i E53 X5

BMW Thermostat 11531436386 Description

This is a high-demand, OE-quality thermostat assembly designed for late model V8 BMW engines, known for their precise cooling requirements.

Key Part Number: Direct replacement for BMW OE 11531436386. This is a complete kit, typically including the thermostat, housing, and gasket/O-ring.

Engine & Model Coverage: This assembly is critical for the M62TU V8 engine and its variants, covering major popular luxury and SUV models:

BMW E39 540i(from 09/1998)

BMW E38 740i / 740iL (from 09/1998)

BMW E53 X5 4.4i / 4.6is

BMW Z8

Performance Standard: Features an electrically controlled or "map-controlled" thermostat, engineered to open at the factory specified temperature of 105℃（221℉）for optimal engine efficiency and emissions (some aftermarket variants offer a lower 90℃ option, but the OE spec is 105℃

Wholesale Offering: We offer competitive bulk pricing and comprehensive global shipping services, making this essential replacement part readily available for high-volume European repair facilities and international auto parts suppliers.

BMW Thermostat 11531436386 Product Parameter

Product Name	BMW Thermostat Replacement for BMW E39 540i E38 740iL 740i E53 X5
Items Included	1 X Standard Thermostat
TEMP	105℃（221℉）
Features	100%  Tested
Warranty	12 Months
Applicaiton	BMW E39 540i E38 740iL 740i E53 X5
Weight	2kg
Dimension	10*10*5cm
Packaging	Brand / Neutral / Customized Packaging
Associated Part Numbers	11531436386

BMW Thermostat 11531436386 Application

Model	Submodel	Engine	Trans.	Drivetrain	Body Style	Year Range	Notes
540i	Base	4.4L V8 M62 Gas	Auto / Manual	RWD	Sedan / Wagon	1999–2003	All combinations in this range.
540i	Base	4.4L V8 M62 Gas	Auto / Manual	RWD	Sedan / Wagon	1998	From 9/1998 production date.
---	---	---	---	---	---	---	---
740i	Base	4.4L V8 M62 Gas	Automatic	RWD	Sedan	1999–2001	All combinations in this range.
740i	Base	4.4L V8 M62 Gas	Automatic	RWD	Sedan	1998	From 9/1998 production date.
---	---	---	---	---	---	---	---
740iL	Base	4.4L V8 M62 Gas	Automatic	RWD	Sedan	2000–2001	All combinations in this range.
740iL	Base	4.4L V8 M62 Gas	Automatic	RWD	Sedan	1998–1999	From 9/1998 production date.
---	---	---	---	---	---	---	---
X5	4.4i	4.4L V8 M62 Gas	Automatic	AWD	Sport Utility	2000–2003	All combinations in this range.
X5	4.6is	4.6L V8 M62 Gas	Automatic	AWD	Sport Utility	2002–2003	High-Performance model (4.6is).
---	---	---	---	---	---	---	---
Z8	Alpina	4.8L V8 Gas	Automatic	RWD	Convertible	2003	Only Alpina model listed.

Elecdura Thermostat Manufacturer & Supplier

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.

Thermostat Quality & Material Display

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.

Engine Thermostat Molding and Development Capability

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.

Engine Thermostat Bulk Production & Quality Assurance

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.

BMW Thermostat 11531436386 Certification

Elecdura Partnership & Market Success

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.

Elecdura Cooling Solution Order Process

Elecdura Cooling Solution Trusted Worldwide, Growing Together

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.

BMW Thermostat 11531436386 FAQs

1. Which BMW models are compatible with Thermostat Assembly & Gasket 11531436386?

Thermostat Assembly & Gasket 11531436386 fits BMW E39 540i, E38 740iL/740i, and E53 X5 models across multiple production years. It ensures accurate coolant temperature regulation and maintains OEM flow performance, supporting optimal engine efficiency.

2. What are the key material and design features of Thermostat Assembly 11531436386?

• Precision wax thermostat element for reliable opening and closing

• High-quality brass and stainless steel components for corrosion resistance

• Integrated gasket ensures leak-free installation

• Opening temperature: approx. 87°C (188.6°F), designed to match BMW cooling system requirements

• Robust construction suitable for frequent thermal cycles
  These features guarantee consistent engine temperature, improved fuel efficiency, and long-term durability.

3. What symptoms indicate a failing thermostat in BMW E39, E38, or E53 engines?

• Engine overheating or temperature fluctuations

• Heater performance issues inside the cabin

• Coolant leakage near the thermostat housing

• Slow engine warm-up or extended idle warming time
  Timely replacement prevents engine damage, reduced cooling efficiency, and increased wear.

4. What are the recommended installation steps for Thermostat Assembly & Gasket 11531436386?

• Replace with new OEM gaskets included in the assembly

• Clean thermostat housing and coolant passages thoroughly before installation

• Apply BMW torque specifications when tightening bolts to prevent leaks or deformation

• Bleed the cooling system to remove air pockets and verify proper temperature control
  Proper installation ensures reliable coolant circulation and engine longevity.

5. Can Elecdura provide bulk supply or OEM customization for Thermostat Assembly & Gasket 11531436386?

Yes. Elecdura supplies wholesale quantities, OEM/ODM labeling, and customized packaging, suitable for auto parts distributors, repair shops, and fleet maintenance companies, offering consistent quality, scalable supply, and brand customization options.