NewLine Spin-on Lube Filter NL-BT611-MPG – Replaces BT611-MPG, Sullair 250025-525

High-performance replacement Spin-on Lube Filters for engine lubrication systems in heavy-duty trucks, buses and off-road equipment.
Direct replacement for BT611-MPG and Sullair 250025-525. Premium filtration efficiency.

Technical Specifications

Outside Diameter

4.625 inch (117.5 mm)

Length

6.281 inch (159.5 mm)

Thread Size

1 1/4-11 BSP-PL

Micron Rating (Nominal)

5.0

Micron Rating (Absolute)

20.0

Sealing & Components

Integral Gasket: G498-A; Integral Post Seal

Cross Reference

Sullair 250025-525

Item Information

The NewLine NL-BT611-MPG 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: BT611-MPG, Sullair 250025-525, Sullair Compressors.

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.

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