NewLine Air Breather Filter NL-BT40015 – Replaces BT40015, Caterpillar 9C4937
High-performance replacement Air Breather Filters for gearboxes, hydraulic tanks, differentials and reservoirs that need clean breathing air.
Direct replacement for BT40015 and Caterpillar 9C4937. Premium filtration efficiency.
Technical Specifications
| Outside Diameter |
3.000 inch (76.2 mm) |
|---|---|
| Length |
2.781 inch (70.6 mm) |
| Thread Size |
3/8-18 NPT |
| Cross Reference |
Caterpillar 9C4937 |
Item Information
The NewLine NL-BT40015 is engineered to meet or exceed OEM specifications for gearboxes, hydraulic tanks, differentials and reservoirs that need clean breathing air. It provides superior protection for your equipment’s engine and hydraulic systems.
This filter serves as a direct, high-quality replacement for: BT40015, Caterpillar 9C4937, Caterpillar Excavators, Loaders, Off-Highway Trucks.
Key benefits:
- Allows tanks and housings to breathe while capturing airborne contaminants.
- Helps control moisture and particle ingress into critical systems.
- Ideal for hydraulic reservoirs, gearboxes and similar applications.
Note: All manufacturer names, symbols and part numbers are used for reference purposes only. The NewLine filter is an aftermarket equivalent and is not endorsed by the original equipment manufacturer.
