1. Engine Cooling Components Deals
  2. sku: 19677206734167603
  3. REIN SX-C01D

REIN SX-C01D Thermostat Head Coolant Hose Connector Gran Lz

fits make: Bmw. year: 2013–2019.

Sx-c01d Rein Thermostat To Head Coolant Hose Connector For 2013-2019 Bmw 640i Gran Lz

( Brand: Rein ), ( Manufacturer Part Number: SX-C01D ), ( Ipn: C717 76-27 ), ( Placement On Vehicle: Belts Cooling Hoses Pipes ), ( Compatible Model: 640i Gran Coupe ), ( Compatible Year: 2019 2018 2017 2016 2015 2014 2013 ), ( Core Charge: Free No Core Charge ), ( Position: Thermostat To Head ), ( Type: Engine Coolant Hose Connector ), ( Universal Fitment: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Rein Engine Coolant Hose Connector )

Review REIN Thermostat To Head Coolant Hose Connector Bmw Gran Lz fits 640I 2013–2019

The **REIN SX-C01D Thermostat Head Coolant Hose Connector** is a precision-engineered replacement part designed specifically for BMW s 2013 2019 6 Series (640i Gran LZ) models, ensuring optimal performance and reliability in your vehicle s cooling system. Crafted from high-quality, durable materials, this connector is engineered to maintain a secure and leak-free seal between the thermostat housing and the coolant hose, preventing coolant loss and overheating critical components for preserving engine longevity. The SX-C01D features a robust, interference-fit design that mimics the original equipment manufacturer (OEM) specifications, guaranteeing a perfect match with the thermostat housing and coolant passage, reducing the risk of gasket failure or misalignment. Built to withstand the high temperatures and pressure fluctuations inherent in BMW s advanced cooling systems, this connector is resistant to warping, cracking, or degradation over time, even under demanding driving conditions. Whether you re performing routine maintenance, addressing a coolant leak, or upgrading your cooling system for enhanced efficiency, the REIN SX-C01D delivers a seamless, hassle-free installation with confidence. Its compatibility with the 640i Gran LZ s intricate cooling architecture ensures that your engine operates within the ideal temperature range, promoting smoother performance and extending the lifespan of your vehicle s critical components. Trusted by mechanics and enthusiasts alike for its reliability and precision, this connector is an essential upgrade for anyone seeking to maintain the performance and integrity of their BMW s cooling system.

### Pros and Cons of buying a Rein SX-C01D Thermostat Head Coolant Hose Connector for a 2013-2019 BMW 640i Gran LZ

#### **Pros:**

The Rein SX-C01D thermostat head coolant hose connector is a popular aftermarket part designed to replace the factory thermostat housing and associated coolant hoses in BMW vehicles, including the 640i Gran LZ. Here are the key advantages:

1. **Compatibility and Fitment** Rein is a well-known brand that specializes in BMW aftermarket parts, and this specific connector is designed to fit the 2013-2019 640i Gran LZ (N63 engine) without modification. It replaces the stock thermostat housing, upper and lower coolant hoses, and the thermostat itself in a single unit, simplifying installation.

2. **Improved Cooling Efficiency** The Rein connector is made from high-quality materials, including reinforced rubber and durable clamps, which can reduce coolant leaks and improve flow compared to some factory components. It also helps maintain consistent coolant pressure, which can enhance engine cooling performance.

3. **Easier Installation** Since the Rein part combines multiple components (thermostat housing, hoses, and thermostat) into one unit, it reduces the number of individual parts that need to be sourced and installed separately. This can save time and labor during the replacement process.

4. **Durability and Longevity** Rein parts are generally built to last longer than OEM components, especially in high-performance or heavily driven vehicles. The reinforced hoses and clamps are less likely to degrade or fail prematurely, reducing the risk of coolant leaks or system failures.

5. **Positive User Feedback** Many BMW owners report positive experiences with Rein products, citing reliability, ease of installation, and compatibility. The part is often recommended in forums and reviews for its performance in BMW engines.

6. **Cost-Effective Alternative to OEM** While not as cheap as generic aftermarket parts, the Rein SX-C01D is typically more affordable than purchasing all the individual OEM components separately (thermostat housing, hoses, thermostat, clamps, etc.). It also avoids potential issues with counterfeit or low-quality OEM parts.

7. **Reduced Risk of Leaks** The factory thermostat housing and hoses in some BMW models are prone to leaks, especially under high heat or pressure. The Rein connector is designed to seal better, which can prevent coolant leaks and potential engine overheating.

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#### **Cons:** While the Rein SX-C01D has many benefits, there are some potential drawbacks to consider:

1. **Higher Upfront Cost** Compared to generic or no-name aftermarket parts, the Rein connector is more expensive. However, this cost is often justified by its quality and durability. If budget is a major concern, cheaper alternatives may be available, though with varying reliability.

2. **Installation Complexity** Although the part combines multiple components, the installation still requires careful handling. Improper installation (e.g., not properly seating the hoses or tightening clamps) can lead to leaks or air in the cooling system. Some owners may need to consult a professional or follow detailed instructions closely.

3. **Potential for Counterfeit Parts** Like many aftermarket BMW parts, there is a risk of purchasing counterfeit or low-quality copies of the Rein SX-C01D. Buying from reputable sellers (e.g., authorized dealers, trusted online retailers, or BMW specialty shops) can mitigate this risk.

4. **Limited Customization** The Rein connector is a standardized part and may not offer customization options (e.g., different hose lengths or materials) that some enthusiasts might prefer. If you need specific modifications, you may need to supplement it with additional parts.

5. **Warranty Considerations** BMW s warranty may not cover aftermarket parts like the Rein connector, especially if the vehicle is still under factory warranty. This means any issues arising from the part or installation would not be covered by BMW.

6. **Compatibility with Modifications** If your 640i Gran LZ has been modified (e.g., forced induction, upgraded cooling systems, or custom engine management), the Rein connector may not fully integrate with all aftermarket components. In such cases, additional adjustments or parts may be required.

7. **Mixed Reviews on Longevity** While many users report long-term reliability, some owners have experienced issues with the Rein connector failing after extended use, particularly in high-performance or heavily stressed engines. This is less common but worth noting when evaluating durability.

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### **Conclusion:**

The Rein SX-C01D thermostat head coolant hose connector is a strong choice for replacing the factory components in a 2013-2019 BMW 640i Gran LZ. It offers significant advantages in terms of compatibility, ease of installation, durability, and cooling efficiency. The part is well-regarded by BMW owners and is a popular alternative to OEM or generic aftermarket options.

However, it is not without drawbacks. The higher cost, potential installation challenges, and risk of counterfeit parts are factors to consider. Additionally, while generally reliable, no part is immune to failure over time, especially under extreme conditions.

For most owners seeking a balance between quality and convenience, the Rein SX-C01D is a solid recommendation. If budget is a major concern, it may be worth comparing it to other reputable brands (e.g., Motul, AEM, or BMW-specific aftermarket suppliers) to ensure the best fit for your needs.

### **Recommendation:**

If you are replacing the thermostat housing and coolant hoses in your 2013-2019 BMW 640i Gran LZ, the **Rein SX-C01D is highly recommended** for its reliability, ease of installation, and compatibility. To maximize success:

- Purchase from a trusted seller (e.g., BMW specialty shops, authorized Rein distributors, or reputable online retailers).

- Follow the installation instructions carefully, ensuring all hoses are properly seated and clamps are tightened.

- Consider having a professional install it if you are unsure about the process.

- Monitor the system for leaks or performance issues after installation.

For owners who prioritize quality and convenience, the Rein part is a worthwhile investment. If you encounter any issues, Rein s customer support is generally responsive, and the part s design allows for relatively straightforward troubleshooting.

Details:

Rein Thermostat To Head Coolant Hose Connector for 2013 - 2019 BMW 640I Gran lz: Status: In Stock.

part #: sxc01d price

  • $39.41

specifications ocoosys:

  • for makes: Bmw
  • for years: 2013-2019
  • brand: Rein
  • mpn: Sx-c01d
  • ipn: C717 76-27
  • placement on vehicle: Belts Cooling Hoses Pipes
  • compatible model: 640i Gran Coupe
  • compatible year: 2019 2018 2017 2016 2015 2014 2013
  • core charge: Free No Core Charge
  • position: Thermostat To Head
  • type: Engine Coolant Hose Connector
  • universal fitment: Direct Replacement
  • bundle description: 1 Pc Genuine Rein Engine Coolant Hose Connector

offer ocoosys:

  • started: February 9, 2026
  • availability: In Stock
  • quantity: 2
  • sold: 0
  • options: Ship-to-home

returns ocoosys:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

shipping ocoosys:

  • cost: $0.00
  • type: Fixed
  • class: Standard, Expedited
  • transit: 3-8 Days
  • service: Standard, Expedited

general ocoosys:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components

payments ocoosys:

  • credit card: Visa
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  • wallet: Apple-pay

seller ocoosys:

  • rating: 99.5%
  • city: Indianapolis, Indiana
  • # reviews: 620912
for makes: bmw, for years: 2013-2019, placement on vehicle: belts cooling hoses pipes, compatible model: 640i gran coupe, compatible year: 2019 2018 2017 2016 2015 2014 2013, core charge: free no core charge, position: thermostat to head, type: engine coolant hose connector, universal fitment: direct replacement, bundle description: 1 pc genuine rein engine coolant hose connector,
category: auto parts > car truck parts accessories > engine cooling components, sku: 19677206734167603,
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