BMW 1722531 Engine Coolant Thermostat Housing Cover 323IC LM91

( Manufacturer Part Number: 1722531 ), ( Type: Thermostat Housing )

Review BMW Series Engine Coolant Thermostat Housing Cover Oem fits E36 M3 1991–1999

The BMW 1722531 is a genuine OEM (Original Equipment Manufacturer) thermostat housing cover for the BMW E36 323i and M3 models produced between 1991 and 1999. This important engine component is designed to protect and seal the thermostat housing, ensuring efficient cooling system operation.

The thermostat housing cover is made from high-quality materials that provide excellent resistance to heat, pressure, and the corrosive effects of coolant. Its robust construction ensures a long service life, even under the most demanding driving conditions.

The BMW 1722531 thermostat housing cover features a sleek, modern design that complements the overall aesthetic of your BMW E36 323i or M3. Its smooth, contoured surface blends seamlessly with the engine bay, while its precision engineering ensures a perfect fit and secure installation.

The cover is engineered to provide easy access to the thermostat and cooling system components for routine maintenance and repairs. Its securely fastened design ensures that it stays in place during operation, preventing coolant leaks and other potential issues.

Installing the BMW 1722531 thermostat housing cover is a straightforward process that can be completed in a short amount of time using common hand tools. The cover comes with all necessary hardware and instructions for installation.

By using a genuine BMW OEM thermostat housing cover, you can ensure optimal engine performance and cooling system efficiency, while also maintaining the appearance and value of your BMW E36 323i or M3. This high-quality component is an essential upgrade for any BMW enthusiast looking to keep their vehicle in top condition.

Pros and Cons of Buying BMW LM91 323i/M3 E36 Engine Coolant Thermostat Housing Cover

The BMW LM91 coolant thermostat housing cover is an essential component of the engine cooling system in BMW E36 323i and M3 models produced between 1991 and 1999. Here are some pros and cons of purchasing this part to help you make an informed decision.

1. Improved Cooling Efficiency: A faulty or damaged coolant thermostat housing cover can significantly impact the cooling system's performance. Replacing it with a new one ensures optimal cooling efficiency and helps maintain the engine's temperature within the optimal range.

2. Enhanced Engine Protection: The cooling system is crucial in preventing engine overheating, which can lead to costly repairs or even engine damage. By investing in a new coolant thermostat housing cover, you ensure the engine is adequately protected.

3. Better Fuel Economy: A well-functioning cooling system ensures that the engine operates at its most efficient temperature, which in turn can lead to improved fuel economy.

4. Long-Term Savings: Although the initial investment might be high, replacing the coolant thermostat housing cover can save you money in the long run by preventing costly engine repairs or replacements.

1. High Cost: The BMW LM91 coolant thermostat housing cover is a relatively expensive part, which may deter some buyers, particularly those on a tight budget.

2. Complex Installation: Installing the coolant thermostat housing cover can be a time-consuming and complex process, especially for those without experience in automotive repair. It might be necessary to seek professional help, which could add to the overall cost.

3. Availability: Finding a genuine BMW LM91 coolant thermostat housing cover might be challenging, especially in regions with limited access to BMW dealerships or authorized repair centers.

The BMW LM91 coolant thermostat housing cover is an essential component of the cooling system in E36 323i and M3 models. While the upfront cost might be high, the benefits, such as improved cooling efficiency, engine protection, and potential fuel economy savings, make it a valuable investment for BMW owners. However, the complex installation and potential availability issues should be considered before making a purchase.

If you're experiencing issues with your BMW E36 323i or M3's cooling system, it's recommended to consult a professional mechanic or BMW dealership for an accurate diagnosis and replacement of the coolant thermostat housing cover. Alternatively, you can explore aftermarket options or consider purchasing a rebuilt part to save on costs. However, be cautious when dealing with aftermarket parts and ensure they meet the necessary quality standards.

Details:

No major grooves or scratches. Mounts in good condition. Everything works as should. 91-99 BMW E36 3 Series 323IC M3 Engine Coolant Thermostat Housing Cover OEM LM91, This thermostat housing is in good condition with minor cosmetic flaws.

1999 BMW 323ICVin - WBABJ7337XEA17816Mileage 129,516Engine M52 2.8Transmission Manual Exterior Color Avis Blue 276/5Interior Beige Body Convertible Stock # LM91, Removed From: 1998 323ci with 126,245 miles, Please review all pictures to assess the condition of item. Larsen Motors.

part #: 1722531 prices

• $12.78-$34.95

specifications theostapa:

• for models: E36, M3
• for makes: Bmw
• for years: 1991-1999
• mpn: 1722531
• type: Thermostat Housing

returns theostapa:

• time: 60 Days
• paid by: Buyer
• policy: Returns Accepted

offer theostapa:

• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home
• started: October 31, 2025
• sold: 0

general theostapa:

• Car Truck Parts Accessories > Engine Cooling Components > Thermostats Housings
• condition: Used

seller theostapa:

• rating: 96.9%
• city: Pomeroy, Pennsylvania
• # reviews: 7508

payments theostapa:

• wallet: Apple-pay
• credit card: Mastercard
• other

shipping theostapa:

• transit: 4-10 Days
• carrier: UPS, FedEx
• class: Economy
• service: UPS Ground Saver, FedEx Ground Economy
• type: Calculated
• cost: $14.95

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