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Hydraulic Oil Filter 4I-3948

OEM No.4I-3948 P170480 HF28938 56419254 4010000847

The Hydraulic Oil Filter 4I-3948 is designed for heavy-duty Caterpillar machinery hydraulic systems. It effectively removes contaminants such as dust, metal particles, and sludge from hydraulic oil, ensuring stable system pressure and extending equipment service life.

Manufactured with high-quality filtration media and reinforced structure, this 4I-3948 filter ensures consistent performance under high pressure and harsh working environments.

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Technical Specifications Equipment Used Customized Service

Technical Specifications

Parameter
Brand	GOOZO	Outer Diameter	80 mm
OE Part No.	41-3948	Overall Height	140 mm
Name	Spin-on Line Filter	Thread Size	2"-12
Interchange Part No.	41-3948	Seal Outer Diameter	80 / 76 mm
Notes	—	Seal Inner Diameter	71 / 40 mm

Key Features of Hydraulic Oil Filter 4I-3948

High-efficiency filtration for fine particle removal
Strong contamination control for hydraulic systems
Durable filter media for heavy-duty applications
Stable performance under high pressure and temperature
OEM-compatible design for easy replacement
Extends hydraulic system and component lifespan

Cross Reference (Equivalent Models)

Fleetguard HF28938
Baldwin BT8333
Baldwin P170480

Applications of Hydraulic Oil Filter 4I-3948

The 4I-3948 hydraulic filter is widely used in Caterpillar machinery, including:

Wheel Loaders (950G, 962G, 966G, 972G series)
Off-Highway Trucks (769D, 773, 775, 777 series)
Excavators (320, 325, 330, 345 series)
Mining and quarry equipment
Construction heavy machinery
Forestry equipment

Advantages Compared to Standard Filters

Item	4I-3948 Hydraulic Filter	Standard Filter
Filtration efficiency	High	Medium
Contaminant control	Excellent	Basic
Service life	Long	Short
System protection	Strong	Limited
Heavy-duty suitability	Yes	Partial

Maintenance & Replacement Suggestion

Replace according to equipment service manual (typically 500–1000 operating hours)
Avoid operating with contaminated hydraulic oil
Always check sealing condition during replacement
Use recommended oil cleanliness standards for optimal performance

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