BMW 8374975 Engine Coolant Line Hose Pipe A36

( Manufacturer Part Number: 8374975 ), ( Part Type: Line Pipe Engine Hose ), ( Manufacturer Warranty: 30 Day ), ( Country Of Origin: Germany )

Review BMW Engine Coolant Line Hose Pipe A36 fits F12 650 2012

The **BMW 8374975 Engine Coolant Line Hose Pipe (A36)** is a high-performance, precision-engineered component designed exclusively for the **2012 BMW F12 6-Series (650i)** and its derivatives, ensuring optimal thermal management and reliability under demanding driving conditions. Crafted from **high-grade synthetic rubber reinforced with durable fabric layers**, this hose is engineered to withstand the extreme temperatures and pressures inherent in BMW s advanced liquid-cooling systems, providing long-lasting durability and resistance to oil, coolant, and environmental contaminants. The **A36 designation** indicates a specialized design tailored for the **650i s high-output engine**, where fluid flow efficiency and structural integrity are paramount. This hose features a **smooth, reinforced interior lining** to minimize turbulence and maximize coolant circulation, reducing the risk of overheating while maintaining consistent engine performance. Its **robust, heat-resistant exterior** prevents kinking or deformation, even under prolonged exposure to high temperatures, ensuring seamless operation in both urban and high-speed driving scenarios. Compatible with BMW s **EfficientDynamics cooling system**, this hose is a direct-fit replacement for the original equipment, maintaining factory specifications for proper engine cooling and preventing leaks that could compromise vehicle performance or lead to costly repairs. Whether used in routine maintenance or as part of a performance upgrade, the **8374975 A36 hose** exemplifies BMW s commitment to precision engineering, delivering a reliable, long-lasting solution for maintaining peak thermal efficiency in the 650i s sophisticated powertrain.

### **Pros and Cons of Buying a BMW 8374975 (A36 Engine Coolant Line Hose Pipe) for a 2012 F12 (6-Series)**

1. **OEM Quality and Fit** This is an original BMW part, meaning it is designed specifically for your vehicle s engine bay layout, reducing the risk of leaks or improper installation. The A36 designation indicates it is a high-quality rubber hose with reinforced construction, suitable for the F12 s cooling system.

2. **Reliability and Durability** BMW s aftermarket and OEM hoses are generally built to last, especially when sourced from reputable suppliers. The A36 material is resistant to oil, coolant, and temperature fluctuations, which is critical for the 650i s high-performance engine.

3. **Prevents Coolant Leaks** The coolant system in the F12 is under moderate pressure, and a failing hose can lead to overheating or coolant loss. Replacing a worn-out hose with this OEM part ensures a secure seal and proper function of the cooling system.

4. **Compatibility with Aftermarket Upgrades** If you ve modified your engine (e.g., forced induction, upgraded intercooler, or additional cooling components), an OEM hose ensures compatibility with the factory cooling system s routing and connections.

5. **Easier Installation** Since it is the exact replacement part, installation is straightforward, requiring minimal adjustments. You won t need to improvise with aftermarket hoses that may not fit perfectly.

6. **Warranty Coverage (if purchased from authorized dealers)** If bought from an official BMW parts distributor or a trusted dealer, the part may come with a warranty, providing peace of mind against early failure.

7. **Avoids Cheap Counterfeit Parts** Some aftermarket hoses, especially from unbranded sellers, may be made from inferior materials that crack or degrade quickly. An OEM part eliminates this risk.

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1. **Higher Cost Compared to Aftermarket Alternatives** OEM BMW parts are significantly more expensive than generic or third-party hoses. For example, while the 8374975 may cost **$80 $150**, aftermarket equivalents (e.g., Genuine Parts Company, ACDelco, or even some budget brands) can range from **$20 $50**.

2. **Limited Availability Outside BMW Dealers** Finding this exact part may require ordering from an authorized BMW parts store, an online marketplace like **BMW Motorrad Parts, RockAuto, or eBay (verified sellers)**, or a specialty BMW parts supplier. This can add shipping time and potential extra fees.

3. **Potential for Overkill if Only a Minor Issue Exists** If the hose failure is isolated to a small section (e.g., a cracked section rather than full degradation), some mechanics might argue that replacing only the damaged segment with an aftermarket hose is sufficient. However, OEM parts are still the safest long-term solution.

4. **Installation May Require Professional Help** While the part itself is easy to install, if you re unfamiliar with BMW cooling system mechanics, improper handling (e.g., overtightening clamps, damaging O-rings) could lead to leaks. Some owners may prefer a mechanic for peace of mind.

5. **Environmental and Ethical Concerns (if purchasing used/refurbished)** If buying a used or refurbished OEM part, there s a risk of counterfeit or reconditioned items that may not meet original specifications. Stick to new parts from trusted sources to avoid this.

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Buying the **BMW 8374975 (A36 Engine Coolant Line Hose Pipe)** for your **2012 F12 650i** is the **best choice for reliability, longevity, and compatibility**. While it comes at a higher price than aftermarket options, the **superior quality, exact fit, and reduced risk of leaks or system failures** justify the investment especially for a high-performance vehicle like the 650i. The cooling system is critical to engine health, and cutting corners here could lead to **costly repairs down the line**.

If budget is a concern, **high-quality aftermarket alternatives** (e.g., **GPC, ACDelco, or BMW-approved aftermarket brands**) can be a reasonable compromise, provided they meet the same material standards (A36 rubber). However, for maximum confidence, **OEM is the safest path**.

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1. **Purchase from an Authorized Source** Buy the part from a **BMW dealership, BMW Motorrad Parts, or a trusted online retailer** (e.g., **RockAuto, eBay with verified BMW sellers, or a reputable BMW parts store**). Avoid unknown sellers to prevent counterfeit parts.

2. **Check for Genuine A36 Material** Ensure the hose is labeled **A36** (or equivalent high-grade rubber) to confirm it s suitable for coolant and oil resistance. Some aftermarket hoses may use cheaper materials.

3. **Replace the Entire Coolant System if Needed** If the coolant has been changed infrequently or the system shows signs of age (e.g., discolored coolant, rust in the reservoir), consider **flushing the system and replacing other hoses** (e.g., radiator hoses, heater hoses) for long-term reliability.

4. **Follow Installation Best Practices**

- Use **new clamps** (if not included) to prevent leaks.

- Check **O-rings and gaskets** for wear.

- Ensure **proper routing** to avoid abrasion against sharp edges.

- **Bleed the cooling system** after installation to remove air pockets.

5. **Consider a Coolant System Inspection** If this is part of a larger cooling system overhaul, have a mechanic check for **radiator leaks, thermostat function, or water pump wear**, as these are common failure points in the F12.

6. **Budget Alternative (If Needed)** If the OEM part is unaffordable, look for **aftermarket hoses from brands like GPC (Genuine Parts Company) or ACDelco**, which offer similar durability at a fraction of the cost. However, **verify compatibility** with your specific F12 model year.

**Final Verdict:** **Go for the OEM part (8374975) if possible.** The extra cost is justified by the **reliability, exact fit, and peace of mind** it provides for your 650i s cooling system. If you must save money, prioritize **high-quality aftermarket A36-compatible hoses** from trusted brands. Never skimp on coolant system components overheating can destroy your engine.

Details:

BMW 650 2012 F12 CONVERTIBLE N63 engine rear wheel drive. Fitment and Compatibility. If the item was listed with. This part may fit one or all of the described vehicles.

Please match part number to ensure fitment. Item is available for pickup locally or by shipping.

part #: 8374975 prices

• $17.00-$43.99

specifications emblico:

• for models: F12, 650
• for makes: Bmw
• for years: 2012
• mpn: 8374975
• part type: Line Pipe Engine Hose
• manufacturer warranty: 30 Day
• country of origin: Germany

returns emblico:

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

payments emblico:

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

general emblico:

• condition: Used
• Car Truck Parts Accessories > Exterior Parts Accessories > Emblems Ornaments

offer emblico:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• best offers: True
• sold: 0
• started: March 16, 2026

seller emblico:

• city: Sacramento, California
• rating: 99.3%
• # reviews: 2465

shipping emblico:

• carrier: UPS
• transit: 3-7 Days
• class: Standard
• service: UPS Ground
• cost: $16.30
• type: Fixed

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