LF3970 Oil Filter For Fleetguard Cummins ISB QSB 5.9L 6.7L Diesel Engine 4 Pack

This LF3970 Oil Filter is a high-efficiency replacement oil filter compatible with Cummins ISB, QSB 5.9L and 6.7L diesel engines and matches OEM Part# LF3970.

Product Overview

The LF3970 oil filter is engineered for Cummins ISB, QSB 5.9L and 6.7L diesel engines, delivering high-efficiency filtration that safeguards critical engine parts. These LF3970 oil filters trap soot, metal particles and sludge, prolonging engine life in demanding diesel applications. Ideal for fleet maintenance, mechanics and owners of Dodge Ram pickups, commercial trucks, and industrial equipment powered by these Cummins engines.

Key Features & Performance

• High-capacity synthetic media captures microscopic contaminants for superior engine protection
• Heavy-gauge steel canister withstands extreme pressure and vibration
• Silicone anti-drainback valve prevents dry starts and maintains oil supply at startup
• Pre-lubricated gasket resists heat, ozone, and oil degradation for a reliable seal
• Precision-cut threads ensure accurate, hassle-free spin-on installation
• Engineered to meet or exceed OEM filtration efficiency specifications

Fitment & Compatibility

• 2003-2007 Dodge Ram 2500 / 3500 with 5.9L Cummins ISB diesel engine
• 2007.5-2012 Dodge Ram 2500 / 3500 with 6.7L Cummins ISB diesel engine
• Cummins QSB 5.9L industrial, agricultural, and marine engines
• Cummins QSB 6.7L industrial, agricultural, and marine engines
• Additional commercial truck, bus, and generator applications using ISB/QSB platforms

Common Uses

• Routine oil changes on Dodge Ram 2500 and 3500 diesel pickups
• Fleet preventive maintenance for delivery trucks and service vehicles with Cummins ISB engines
• Agricultural tractors, combines, and sprayers powered by QSB 5.9L/6.7L engines
• Marine propulsion and auxiliary generator engine servicing
• Construction equipment, including excavators and wheel loaders with QSB powerplants

Technical Specifications

• Part Number(s): LF3970
• Brand: Fleetguard
• Type: Spin-on full-flow oil filter

Frequently Asked Questions

Q: How often should the LF3970 oil filter be replaced? A: Replace the LF3970 filter at every oil change interval; typical service schedule is 15,000 miles for Dodge Ram diesels, or as specified by Cummins for severe-duty and fleet use.

Q: Does this filter include all necessary seals and gaskets? A: Yes, each LF3970 oil filter comes with a pre-installed silicone anti-drainback valve and sealing gasket for a complete, ready-to-install unit.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.