Blower Motor for 1987-2005 Mack DM & More - Four Seasons 75780

$77.99

Four Seasons HVAC Blower Motor 75780 - view 2

Four Seasons HVAC Blower Motor 75780 - view 3

Four Seasons HVAC Blower Motor 75780 - view 4

Four Seasons HVAC Blower Motor 75780 - view 5

Four Seasons HVAC Blower Motor 75780 - view 6

Part number: 75780

UPC: 096361757806

Condition: New

Weight: 3.10 LBS

Item Package Quantity: 1

$77.99

Current Stock: 30

Quantity:

Adding to cart… The item has been added

Have questions?

Ask an Expert

Four Seasons HVAC Blower Motor P/N:75780

$77.99

Description

Four Seasons 75780 blower motor for the 1987-2005 Mack DM and other vehicles spins the wheel that pushes heated and cooled air through the cabin vents.

This Four Seasons blower motor is engineered and tested to provide years of trouble-free operation, backed by over 50 years of mobile A/C experience.
Meets or exceeds O.E. design and performance.
Magnet size and properties compare to or exceed OEM.
Windings are built to OEM specification or better.
Motor RPM is equivalent to or above the OEM motor.

Weak airflow, a blower that won't start, or a squeal or rattle when the fan runs can mean the motor is wearing out. Before you replace it, rule out a blown fuse, a faulty relay or resistor, and a loose or damaged connector, since any of those can also stop air from reaching the vents.

It also fits the 1989-2005 Mack RB, the 1981-2004 Mack RD and other Mack and Kenworth trucks. If your truck isn't one of those named, look it up under the "Vehicles it fits" section.

Specifications

Construction: single shaft, vented
Rotation: clockwise (CW)

In the box

Blower motor only; the blower wheel is not included.

Interchange: 975202 · 219161 · 11175780 · BM75780 · 274265 · 2809541006 · HA1700 · 2790275160 · 4379RD554350 · 3927 · M19931 · 012015

Product information is for general reference and may contain errors. See our Disclaimer.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

975202, 75780, 219161, 11175780, BM75780, 274265, 2809541006, HA1700, 2790275160, 4379RD554350, 3927, M19931, 012015

Buyer's Q&A

Frequently Asked Questions

Does the Four Seasons 75780 blower motor fit a 1987-2005 Mack DM?

Yes. Four Seasons 75780 fits the 1987-2005 Mack DM and the 1989-2005 Mack RB, among other trucks. For any other truck, look it up under the "Vehicles it fits" section.

Does the Four Seasons hvac blower motor 75780 come with the blower wheel?

No. Four Seasons 75780 is sold without a wheel, so the blower wheel is not included with the motor.

Is this blower motor vented, and which way does it rotate?

Yes, it is a vented, single-shaft motor with clockwise (CW) rotation.

Can a worn blower motor cause a squeal or weak airflow?

Yes, it can. A squeal, a rattle or weak airflow from the vents can mean the motor is wearing out, and a shop can test the motor to confirm.

How does the 75780 motor's RPM compare with the original motor?

Motor RPM is equivalent to or exceeds the OEM motor. The windings are built to OEM specification or better, and the magnet size and properties compare to or exceed OEM.