Skip to product information
SKU:
ZZ3F09886
Same day shipping if ordered by 4PM CST.
Oil Separator 66-8548 668-548 66-5526 for Thermo King Refrigeration Unit
$116.59
In Stock
$116.59
Sale price
$116.59
Regular price
Part Number(s)
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Oil Separator for Thermo King
This oil separator, referencing OEM cross-reference numbers 66-8548, 668-548, and 66-5526, is a replacement component for Thermo King refrigeration units. It efficiently extracts oil from crankcase gases to keep the engine running cleanly.
Overview
This oil separator for Thermo King is a key part for refrigeration unit engine maintenance, filtering oil from the ventilation system. Designed for Thermo King refrigeration units, this oil separator prevents oil from being carried into the intake or atmosphere. This oil separator 66-8548 / 668-548 / 66-5526 ensures dependable operation in your refrigeration unit.
Built For Performance
- Direct replacement oil separator built for Thermo King refrigeration unit engines
- Cross-references factory part numbers 66-8548, 668-548, and 66-5526
- Durable construction to handle vibration and temperature variations in transport refrigeration
- Efficient separation media reduces oil consumption and protects the environment
- Engineered for a secure, leak-free fit in the existing mounting location
Fits These Machines
- for Thermo King Refrigeration Unit
On-The-Job Use
- Commonly installed during service intervals on trailer and truck refrigeration units
- Works in conjunction with the engine's positive crankcase ventilation (PCV) system
- Helps maintain consistent engine performance during long periods of operation
Specs At A Glance
| Part Number(s) | 66-8548, 668-548, 66-5526 |
| Type | Oil Separator |
| Compatible Brand | for Thermo King |
Good To Know
Q: How do I know if my oil separator needs replacing? A: Signs include increased oil consumption, visible oil residue around the separator, or a drop in engine performance. Replacement with this part helps maintain proper crankcase pressure.
Q: Is this a genuine Thermo King part? A: This is an aftermarket replacement part, designed to match the specifications of the original Thermo King separator. It is built to deliver reliable service, not sourced as an original brand product.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.