Price varies depending on the model, year, and whether you opt for OEM or aftermarket parts.

Overview

The BMW 3 Series radiator is a crucial component in the vehicle’s cooling system, designed to regulate engine temperature and prevent overheating.

Each generation, from the E30 to the latest G20 models, has radiators tailored for specific engine types, ensuring optimal performance.

Available in OEM and aftermarket options, these radiators are made from durable aluminum and plastic, with some high-performance variants featuring all-aluminum construction for better heat dissipation.

Whether for a naturally aspirated or turbocharged engine, BMW radiators come with multi-core designs, direct fitment, and advanced cooling technology for newer models.

Price overview

Lowest Price: $100 for Aftermarket radiator for BMW E30 325i

Highest Price: $800 for OEM radiator for BMW G20 340

BMW 3 Series Radiators

1. E30 (1982-1994) Radiator

Part Number: 17111468078

• Compatible Models: 325, 325i, 325is, 325iX

Ensures proper cooling for older BMW E30 models, preventing overheating and engine damage.

Price Range: $120 – $350

2. E36 (1990-2000) Radiators

318i, 318is, 318ti Models

Part Number: 17111728907

Designed for four-cylinder E36 models, providing efficient cooling.

Price Range: $110 – $280

323i, 325i, 328i Models

Part Number: 17111728908

Suitable for six-cylinder E36 models, offering increased cooling capacity.

Price Range: $130 – $300

3. E46 (1998-2006) Radiator

Part Number: 17119071519

• Compatible Models: 320i, 323i, 325i, 328i, 330i

Ensures optimal engine temperature for various inline-6 E46 models.

Price Range: $150 – $400

4. E90/E91/E92/E93 (2005-2013) Radiators

325i, 328i, 330i Models

Part Number: 17117559273

Designed for naturally aspirated engines in the E90 generation.

Price Range: $170 – $450

335i Models

Part Number: 17117562079

Built for turbocharged N54/N55 engines, ensuring enhanced cooling performance.

Price Range: $200 – $500

5. F30/F31/F34 (2011-2019) Radiators

320i, 328i, 330i Models

Part Number: 17117600513

Designed for turbocharged four-cylinder engines, providing efficient heat dissipation.

Price Range: $200 – $550

335i, 340i Models

Part Number: 17117600514

Supports high-performance turbocharged six-cylinder engines, preventing overheating.

Price Range: $250 – $600

6. G20/G21 (2018-Present) Radiators

320i, 330i Models

Part Number: 17118672103

Engineered for modern BMW engines, offering advanced cooling technology.

Price Range: $300 – $700

340i Models

Part Number: 17118672104

Built for powerful six-cylinder engines, ensuring maximum heat dissipation.

Price Range: $350 – $800

BMW 3 Series Radiator Features

1. High-Quality Cooling Performance

• Designed to efficiently dissipate heat, ensuring the engine runs at an optimal temperature.

• Prevents overheating, which can lead to engine damage and costly repairs.

2. OEM and Aftermarket Options

• OEM radiators are made by BMW or approved manufacturers, ensuring perfect fit and performance.

• Aftermarket radiators offer cost-effective alternatives, with some providing better cooling efficiency for performance applications.

3. Durable Materials

• Typically made from aluminum and plastic, ensuring a lightweight yet durable design.

• Some high-performance radiators feature all-aluminum construction for better heat dissipation and longevity.

4. Direct Fitment for Each Model

• Available in various part numbers, each specifically designed for different BMW 3 Series generations (E30, E36, E46, E90, F30, G20).

• Ensures hassle-free installation without requiring modifications.

5. Multi-Core Radiator Design

• Many radiators come with single, double, or triple cores, improving cooling efficiency.

• Larger cores are beneficial for high-performance or turbocharged models like the 335i and 340i.

6. Integrated Cooling Fans (Some Models)

• Certain models include built-in electric cooling fans to enhance airflow and engine cooling.

• Helps regulate temperature in high-performance and stop-and-go driving conditions.

7. Compatibility with Automatic and Manual Transmissions

• Some radiators include built-in transmission coolers for automatic transmission models.

• Manual transmission versions may have a slightly different design, ensuring optimal engine cooling without extra transmission cooling.

8. Advanced Cooling Technology in Newer Models

• Newer G20 and F30 models feature thermostat-controlled cooling systems, improving efficiency and reducing emissions.

• Smart cooling helps enhance fuel efficiency and engine longevity.

9. Corrosion and Leak Resistance

• Equipped with reinforced plastic end tanks to prevent leaks.

• Aluminum cores provide better corrosion resistance, ensuring long-lasting performance.

10. Performance Radiator Upgrades Available

• Enthusiasts can opt for high-performance radiators with larger cooling capacity, ideal for track use or tuned engines.

• Upgraded radiators help prevent heat soak in turbocharged BMWs.

Conclusion

Choosing the right BMW 3 Series radiator is essential for maintaining engine efficiency and longevity.

Whether opting for OEM reliability or an aftermarket upgrade, ensuring proper compatibility with your BMW model will maximize performance and prevent overheating issues.