NewLine Spin-on Lube Filter NL-B129 – Replaces B129, Thermo King 11-3871
High-performance replacement Spin-on Lube Filters for engine lubrication systems in heavy-duty trucks, buses and off-road equipment.
Direct replacement for B129 and Thermo King 11-3871. Premium filtration efficiency.
Technical Specifications
| Outside Diameter | 4.250 inch (108.0 mm) |
|---|---|
| Length | 7.375 inch (187.3 mm) |
| Thread Size | 1-12 |
| Micron Rating (Nominal) | 9.8 |
| Micron Rating (Absolute) | 27.0 |
| Sealing & Components | Integral Gasket: G401 |
| Cross Reference | Thermo King 11-3871 |
Item Information
The NewLine NL-B129 is engineered to meet or exceed OEM specifications for engine lubrication systems in heavy-duty trucks, buses and off-road equipment. It provides superior protection for your equipment’s engine and hydraulic systems.
This filter serves as a direct, high-quality replacement for: B129, Thermo King 11-3871, Thermo King Refrigeration Units.
Key benefits:
- Helps protect critical bearings and moving parts in the lubrication circuit.
- Supports longer oil drain intervals when used in a properly maintained system.
- Cost-effective alternative to OEM lube filters without compromising protection.
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.
