Radiator Fan Listings: Motor, Blade or Full Assembly in the Box?

Two listings can both be titled “radiator fan” and still put different things in the box. Dorman’s listing 620-334 is a dual fan assembly with a controller, with the shroud included and the package contents given as one radiator fan assembly. Dorman’s listing 620-450 is a plastic fan blade whose package contents are a fan blade, with mounting hardware not included. If you compare prices or fit across those two without reading the scope, you compare unlike products.

Two Dorman listings, two different scopes

Both pages were read on 2026-09-29. Each entry below describes what that listing states and nothing more.

Three points follow from this table. First, one listing gives a fan quantity and a connector count, and the other gives a blade count and an outside diameter. Each page lists the fields that matter for its own scope, so a missing field is a question to ask, not a zero. Second, the shroud line does the most to separate the two: one listing includes it and the other does not mention it. Third, the OE columns use different labels for the number relationship. A “non-direct” cross is a lead to check, and it does not show that a listing replaces the original assembly.

These are two listings from one manufacturer, so they show that scope varies. They do not show how every fan on the market is packaged.

Ask what each part of the assembly covers

A cooling fan assembly is usually described as a mounting shroud, a motor and a fan blade. Some listings, such as 620-334, add a controller. The listing decides which of those parts you receive, and the words in the title are not enough to tell you.

• Motor. Confirm whether the listing includes one, or one per fan on a dual assembly.

• Blade. Confirm the diameter, the blade count, and whether the mounting hardware is included.

• Shroud. Confirm whether it is included, since it carries the mounting points and directs airflow.

• Controller. Confirm whether it is part of the package and whether it uses the same connector as the original.

• Fan position. If the vehicle has more than one fan, confirm which position the listing serves. If the listing does not say, hold the order.

Write the record before you order

Complete one row set per vehicle and per listing. “Observed value” means a value read from the old part, the vehicle documentation, or the seller’s page. It must not be taken from a different listing or a photo.

A pass on the physical fields is only a lead, and it becomes a decision when the scope, the fan count and position, and the vehicle configuration all agree.

A wrong-match case

A buyer has a dual-fan vehicle where one motor has failed and the blade and shroud look sound. They find an inexpensive fan blade listing and order it, on the assumption that “radiator fan” covers the moving part. The listing’s package contents are a blade only, and no motor arrives. Replacing the blade would not restore a failed motor, and the diameter and mounting would still need checking against the original.

The opposite mistake is also possible. A buyer orders a complete dual assembly with controller to replace one blade. The assembly may fit the vehicle, but it is a larger purchase than the fault requires, and the controller and connector still need to be confirmed against the harness. In both cases, a symptom such as a fan that does not spin narrows the inspection. It does not prove which part has failed. A fault may lie in the motor, the wiring, the controller or the control signal, and confirming which needs the vehicle’s service information and suitable test equipment.

Before any work near the fan, keep hands and tools clear of the blades and disconnect power as the vehicle’s service information directs. Some electric fans can start without warning.

Next step

When every row of the record is a pass, the last step is to look for a matching listing and ask for confirmation of the exact application. Readers sourcing cooling fans can browse the MR.FAST radiator fan category and submit the completed record with the vehicle details. Treat the category as a catalog starting point. It does not confirm fitment, scope, stock or price for any specific vehicle.