Four Seasons 75321 Engine Cooling Fan Assembly

Radiator Fan Assembly for BMW Cooling

The Four Seasons 75321 radiator fan assembly is a direct-fit engine cooling fan assembly built for select BMW applications. It uses an OE mount, a plastic and metal construction, and a 12-volt motor assembly to support consistent radiator airflow in demanding driving conditions.

Four Seasons Radiator Fan Assy. products are backed by more than 50 years of mobile A/C experience and are engineered and tested for dependable operation. This part number 75321 is a practical OE-style replacement for BMW 230i, 330i, and related models listed below.

Key Features

• Brand: Four Seasons
• Part number: 75321
• Engine cooling fan assembly with radiator fan style
• 12-volt motor assembly
• Black plastic/metal construction with plastic shroud
• OE mount design for factory-style installation
• Female terminal, 3-pin connector, 1 connector
• Mounting hardware not included

Detailed Product Overview

This Four Seasons 75321 engine cooling fan assembly is built for BMW vehicles that require a radiator fan assembly with OE-style mounting and electrical connection points. The design uses a single fan configuration with a plastic shroud and a metal/plastic housing to match the original cooling system layout. If you are replacing a worn BMW radiator fan assembly, this unit provides a direct replacement path for the listed 2 Series, 3 Series, and 4 Series applications.

This part cross-references BMW 17428625440 and A19315 for the same application.

What This Part Helps Address

• Overheating caused by a weak or inoperative radiator fan
• Cooling fan noise from a failing motor assembly
• Intermittent fan operation due to connector or terminal wear
• Poor airflow through the radiator at idle or low speed
• Replacement needs after damage to the fan shroud or assembly

Installation Notes and Fitment

Compatible With BMW applications listed below. Verify connector style, OE mount points, and M Sport Package notes before installation. This part number 75321 uses a female 3-pin terminal layout and a single connector, so matching the factory electrical connection is important for proper operation.

• Fits 2017-2023 BMW 230i, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2023 BMW 230i xDrive, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2017-2021 BMW 230i xDrive, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2020-2021 BMW 330e, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2016-2018 BMW 330e, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2021 BMW 330e xDrive, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2016-2021 BMW 330i, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2017-2021 BMW 330i xDrive, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2019-2021 BMW M240i, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2019-2021 BMW M240i xDrive, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2017-2020 BMW 430i Gran Coupe, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2017-2020 BMW 440i xDrive Gran Coupe, N/A, w/o M Sport Package; Radiator Fan Assy.
• Fits 2017-2019 BMW 330i GT xDrive, N/A, w/ M Sport Package; Radiator Fan Assy.
• Fits 2016-2018 BMW 340i, N/A, w/o M Sport Package; Radiator Fan Assy.

Quality Assurance

Four Seasons engineers and tests its cooling components for long service life and dependable operation. The brand’s long history in mobile A/C and thermal management supports this radiator fan assembly as a service replacement for BMW cooling system repairs.