LF670 Oil Filter Apply to Cummins Engine

LF670 Oil Filter Specifications

Primary Application:
✅ Cummins Engine Models:

• N14 (1991-2001)

• M11 (1993-2001)

• L10 (1985-2001)
  ✅ Common Equipment:

• Class 8 trucks (Peterbilt 379, Kenworth W900)

• Industrial generators

• Marine propulsion engines

Key Technical Data

Cross-Reference Numbers

• Fleetguard (OEM): LF670

• Baldwin: B7335

• Donaldson: P550668

• WIX: 51770

• Luber-finer: LOF-5934

Critical Compatibility Notes

1. Engine Variations:

   • Fits mechanical and electronic versions of N14/M11

   • Not compatible with ISX engines

2. Service Life:

   • Standard: 15,000 miles

   • Severe duty: 7,500 miles

3. Installation:

   • Torque: 18-20 lb-ft

   • Always pre-fill filter when possible

Common Failure Signs

⚠️ Immediate Replacement Needed When:

• Filter body shows dents/deformation

• Gasket surface has irregularities

• Oil pressure drop >10% from baseline

Performance Versions

• LF670XL: Extended life (25,000 mile)

• LF670S: Synthetic media

• LF670M: Marine-grade coating

Maintenance Tip: Always check the filter mounting pad for scratches that could cause leaks – use a fine file to smooth if necessary.

Would you like:

• Oil filter dissection analysis?

• Comparison with newer ISX filters?

• Recommended oil change procedures for N14 engines?