Fleetguard LF777 By-Pass Lube Oil Filter

Premium Heavy-Duty By-Pass Spin-On Oil Filter

The Fleetguard LF777 is a premium by-pass spin-on lube oil filter designed to provide additional filtration and protection for heavy-duty diesel engines. As a secondary filtration system, it helps capture fine contaminants that may pass through a conventional full-flow oil filter, including soot, dirt, and microscopic metal particles.

By helping maintain cleaner engine oil, the LF777 supports effective lubrication, reduces contamination-related wear, and helps protect critical engine components during demanding operating conditions.

Product Overview

Engineered for heavy-duty diesel applications, the Fleetguard LF777 is designed to work as a by-pass oil filter, continuously filtering a portion of the engine's lubricating oil through a fine filtration medium.

Its high-efficiency filtration helps remove small particles that can contribute to abrasive wear. This makes the LF777 particularly useful in commercial trucks, industrial equipment, construction machinery, agricultural equipment, and diesel generator applications where engine durability and oil cleanliness are important.

Key Features

• 99% filtration efficiency at 30 microns

• Helps capture soot, dirt, and fine metal debris

• Premium by-pass lube oil filtration

• Rugged spin-on metal housing

• Designed for demanding heavy-duty applications

• Helps maintain cleaner engine oil

• Supports protection of critical engine components

• Convenient spin-on installation

• No standpipe required for installation

• Helps support extended engine service life

High-Efficiency By-Pass Filtration

Unlike a conventional full-flow filter, a by-pass filter is designed to provide additional fine filtration by processing a portion of the engine oil separately.

The LF777 helps capture fine contaminants that can remain suspended in engine oil, including soot and microscopic particulate matter. Removing these contaminants helps reduce the abrasive material circulating through the lubrication system and supports cleaner oil over the service interval.

Heavy-Duty Construction

The LF777 features a durable spin-on metal casing designed for demanding engine environments. Its robust construction helps the filter withstand the pressure, vibration, temperature, and operating conditions associated with commercial and industrial diesel engines.

The spin-on configuration also makes routine replacement straightforward, helping reduce maintenance time.

Helps Reduce Engine Wear

Contaminated oil can contribute to premature wear of bearings, cylinder components, gears, and other precision engine parts. By providing additional fine-particle filtration, the LF777 helps reduce the concentration of harmful contaminants in the lubrication system.

Maintaining cleaner oil can support dependable lubrication and contribute to longer engine component life.

Technical Specifications

Common Engine Applications

The Fleetguard LF777 is used in selected heavy-duty engine applications, including compatible configurations from:

• Cummins KTA19

• Cummins KTA38

• Cummins KTA50

• Cummins NT855

• Cummins N14

• Selected Caterpillar applications

• Selected Detroit Diesel applications

Always verify the exact engine model, filter dimensions, thread specification, and OEM part number before ordering.

Common Equipment Applications

The LF777 is suitable for compatible applications such as:

• Heavy commercial trucks

• Construction machinery

• Agricultural equipment

• Industrial diesel engines

• Diesel generator sets

• Mining and off-highway equipment

• Other heavy-duty diesel-powered machinery

Cross-Reference Part Numbers

The LF777 may cross-reference with the following part numbers:

Important: Cross-reference numbers are provided for identification and replacement purposes. Always confirm compatibility with the engine or equipment manufacturer's specifications before installation.

Benefits of Fleetguard LF777

• Helps remove fine oil contaminants

• 99% filtration efficiency at 30 microns

• Helps reduce soot and particulate buildup

• Supports cleaner engine lubrication

• Helps protect critical internal engine components

• Supports reduced contamination-related wear

• Durable construction for heavy-duty applications

• Easy spin-on replacement

• Suitable for commercial, industrial, and off-highway diesel equipment

Why Choose Fleetguard LF777?

The Fleetguard LF777 is designed for operators who require additional oil-cleanliness protection in demanding diesel applications. Its by-pass filtration design complements the engine's primary lubrication filtration system by targeting fine contaminants that can contribute to long-term engine wear.

With its high filtration efficiency, rugged construction, and convenient spin-on design, the LF777 is a dependable choice for compatible heavy-duty diesel engines and equipment.

For best results, install the filter according to the engine manufacturer's service instructions and replace it at the recommended maintenance interval. Always verify part number and application compatibility before purchase or installation.