Overview: LF3349 Heavy-Duty Full-Flow Spin-On Engine Oil Filter
The Landown LD-LF3349 Lube Oil Filter (Fleetguard LF3349 direct replacement) is a heavy-duty, high-capacity spin-on filtration cartridge specifically engineered for Cummins 3.9L (4BT / 4BTA) and 5.9L (6BT / 6BTA / 12-Valve ISB) diesel engines. Built to meet stringent OEM cleanliness standards across severe agricultural harvesting, construction excavation, long-haul trucking, and marine auxiliary power, the LF3349 delivers continuous full-flow lubrication protection, trapping abrasive carbon particles and metallic wear debris while maintaining optimal oil pressure under heavy throttle demands.
Key Performance & Construction Features
- High-Efficiency Gradient Density Media: Resin-impregnated synthetic-cellulose blend filtration media provides high dust holding capacity (DHC) and captures 98.7% of contaminants down to 30 microns (12-micron nominal rating) without inducing flow restriction.
- Heavy-Duty Steel Shell & Baseplate: Drawn high-tensile steel housing with a precision-rolled 1-16 UN-2B threaded mounting plate resists pressure spikes, cyclical pulse fatigue, and engine vibration.
- Heat & Oil Resistant Buna-N Gasket: Premium synthetic rubber sealing ring maintains elasticity and prevents external oil leakage across operating temperatures from -40°C to +120°C.
- Corrosion-Resistant Center Core: Perforated steel center tube provides exceptional collapse resistance against cold-start high differential pressures.
Technical Specifications
| Specification / Parameter | Verified Technical Detail |
|---|---|
| Product Model / SKU | LD-LF3349 / LF3349 |
| Primary OEM Part Numbers | Cummins 3932217, 3908615, 3903264, 3914395, 3934430 |
| Filter Type | Full-Flow Spin-On Engine Lube Oil Filter |
| Thread Size | 1-16 UN-2B (1″-16 UN) |
| Overall Height | 176.28 mm (6.94 in) |
| Largest Outer Diameter (OD) | 93.73 mm (3.69 in) |
| Gasket Outside Diameter (OD) | 71.45 mm (2.81 in) |
| Filtration Rating & Efficiency | 12 Micron Nominal / 30 Micron Absolute (TWA 98.7%) |
| Operating Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Operating Fluid Compatibility | Standard Mineral Motor Oils, Heavy-Duty Synthetic Diesels (15W-40, 5W-40, 10W-30) |
OEM Interchange & Cross-Reference Table
| Brand / Manufacturer | Cross Reference / Equivalent Part Number |
|---|---|
| Fleetguard (OEM) | LF3349, LF3806, LF3554 |
| Cummins | 3932217, 3908615, 3903264, 3914395, 3934430, 3286278, 3890708, 3890710 |
| Donaldson | P558615, P172562, P550722, P551265 |
| Baldwin | BT339, BD339 |
| Wix | 51607, 51604, 551607, 51607MP |
| Luber-finer | LFP780 |
| Mann & Hummel | W 950/16, W 950/18, W95016, W95018 |
| Case IH / New Holland | J908615, J903264, J932217, 47368538, 86597476 |
| Komatsu | 6735-51-5140, 6736-51-5140, 6735-51-5141, CU3908615, CULF3349 |
| JCB / Caterpillar / Ford | JCB 02910140, 2/910140 | CAT 3I-1376 | Ford F3HZ6731A |
Engine & Equipment Application Guide
The LF3349 lube filter provides precise direct-fit installation across a wide variety of Cummins-powered machinery, commercial trucks, agricultural tractors, and marine engines:
- Cummins B-Series Diesel Engines:
- 3.9L 4-Cylinder: 4BT 3.9, 4BTA 3.9, 4B3.9
- 5.9L 6-Cylinder: 6BT 5.9, 6BTA 5.9, 6B5.9 (12-Valve mechanical injection engines)
- Commercial Light & Medium Duty Trucks: 1989–1998 Dodge Ram 2500 & 3500 (5.9L 12V Cummins Turbo Diesel), Ford F-600 / F-700 / F-800, Freightliner Custom Chassis.
- Agricultural Machinery: Case IH Maxxum Tractors (5120, 5130, 5140, 5220, 5230, 5240, 5250), New Holland Combine Harvesters, AGCO Tractors.
- Construction & Excavation Equipment: Komatsu Excavators (PC200-6, PC220-6 with Cummins 6BT), JCB Backhoe Loaders, Hyundai Heavy Construction Machinery.
- Marine Propulsion & Power Generation: Cummins 4BT / 6BT Marine Auxiliary Engines, Marine Propulsion Turbos, Diesel Generator Sets (30 kW to 150 kW).
B2B Wholesale, OEM & Custom Manufacturing Capabilities
As a professional manufacturer and global exporter of heavy-duty filtration systems, Landown Filter supplies wholesale distributors, aftermarket private brands, and fleet contractors with:
- Private Label Silk-Screening & Laser Marking: Custom customer logos, part numbers, and brand colors on the filter can.
- Heavy-Duty Export Packaging: 12-pack or 24-pack master cartons, custom printed retail individual boxes, moisture-sealed pallet wrapping for sea freight.
- Quality Assurance: 100% burst pressure, cold-flow leak, and thread tolerance inspected in compliance with ISO 4548 standards.
- Wholesale Tiered Pricing & High Capacity: Low sample MOQ for initial trial quality validation and regular FCL container dispatch.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between Fleetguard LF3349 and LF3959?
A: Both filters share identical 1-16 UN-2B thread dimensions and outer diameter; however, the LF3349 features a standard casing profile optimized for 1989–1998 12-Valve 5.9L Cummins engines, whereas the LF3959 / LF3894 features heavier structural can walls or synthetic StrataPore media for later 24V applications.
Q2: Can the Landown LF3349 oil filter directly replace genuine Cummins 3932217 and Donaldson P558615?
A: Yes, 100%. The Landown LF3349 is manufactured to exact OEM dimensional and performance tolerances, ensuring plug-and-play installation without adapters or leaks.
Q3: What is the recommended service replacement interval for LF3349?
A: Standard on-highway truck change intervals are every 5,000 to 10,000 miles (or every 250 engine operating hours in heavy-duty agricultural, marine, or construction service).
Q4: Do you offer bulk wholesale packaging and custom brand boxing?
A: Yes. Standard packaging is packed 12 or 24 units per master shipping carton. We also provide customized OEM packaging, color boxes, and barcode labeling for brand distributors.