No Products in the Cart
Caterpillar 178-5484 is the cab air conditioner and heater blower motor with fan wheel and mounting flange. It is used on Caterpillar C series excavators (307C to 320C). This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Blower Motor |
| Replaces | Caterpillar 178-5484 |
| Type | Single fan wheel blower with motor and mounting flange |
| Voltage | 24 V |
| Fits | Caterpillar 307C; Caterpillar 311C; Caterpillar 312C; Caterpillar 320C |
| Condition | New, aftermarket |
| Stat. HS-Code | 841459 |
Caterpillar machines
Check the part number on your old unit before ordering.
| Caterpillar Part No.(SPM Part No.) | Fits |
|---|---|
| 178-5484(SPM-HEP-3088) | Caterpillar 307C, Caterpillar 311C, Caterpillar 312C, Caterpillar 320C |
No air from the vents
If the fan control and fuse are fine but no air comes from the cab vents at any speed, the blower motor has stopped.
Noise and vibration
A squeal, rattle or wobble from behind the vents means worn bearings or a damaged fan wheel. Replace the blower before it seizes.
Weak airflow or only some speeds
Worn brushes cut the airflow. If only some speeds work, check the blower resistor as well.
Fitting tips
Disconnect the battery, remove the blower cover or cab panel, unplug and unbolt the old blower, and fit the new one the same way round. Check every fan speed before refitting the trim.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (10 aftermarket sellers) | USD 123.33 to 133.75 | 7 Oct 2026 |
| FridayParts | USD 229.00 | 7 Oct 2026 |
| SoonParts | USD 229.50 | 7 Oct 2026 |
| Fab Heavy Parts | USD 253.01 | 7 Oct 2026 |
| Spare Part Mart | USD 98.66 | Today |
Our price of USD 98.66 is 20% to 61% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Caterpillar 178-5484. It is not made by or affiliated with Caterpillar; the Caterpillar part number is used only to show what it replaces.
It fits Caterpillar 307C; Caterpillar 311C; Caterpillar 312C; Caterpillar 320C. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It has the same mounting and electrical connector as the original. Check the plug and terminals match your old part, and test it before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your postcode.
In USD for the quantity selected. The exact cost is confirmed at checkout.
