5ND-D550B Articulated Dump Truck
5ZS-PM-465 Cold Planer
5XC-PR-1000C Cold Planer
5XC-PR-1000 Cold Planer
7DC-PR-450 Cold Planer
8AC-PR-750B Cold Planer
10X-3204 Engine – Machine
45V-3204 Engine – Machine
S2C-325C Excavator
1NF-E140 Excavator
6TL-M312 Excavator
7ML-M315 Excavator
14Z-215 Excavator
57Y-215 Excavator
61Z-215 Excavator
BGB-320C FM Excavator
BKK-320C FM Excavator
SAH-320C FM Excavator
TBR-320C FM Excavator
1YS-322B L Excavator
C3R-322C FM Excavator
CBY-322C FM Excavator
LAR-322C FM Excavator
M2H-322C FM Excavator
2JR-325B L Excavator
G1L-325C FM Excavator
M2K-325C FM Excavator
S3M-325C FM Excavator
6DR-330B L Excavator
B1K-330C FM Excavator
B2L-330C FM Excavator
B3M-330C FM Excavator
B4N-330C FM Excavator
D3C-330C MH Excavator
APB-345B II MH Excavator
DCW-345B II Excavator
2NW-345B Excavator
3FG-E110 Excavator
1LF-E120 Excavator
1RF-E180 Excavator
1FG-E240 Excavator
2CF-E300 Excavator
3HG-E450 Excavator
3KG-E650 Excavator
4EF-EL180 Excavator
4JF-EL240 E
Caterpillar 120-4311 Seal-O-Ring: OEM-Grade Durability for Heavy Equipment
The Caterpillar 120-4311 Seal-O-Ring is a precision-engineered component designed to ensure optimal sealing performance across a wide range of Caterpillar heavy machinery, including articulated dump trucks, cold planers, and excavators. Manufactured from high-grade elastomeric materials, this seal-o-ring offers exceptional resistance to hydraulic fluids, extreme temperatures, and abrasive contaminants. With dimensions tailored to fit specific Caterpillar models such as the 5ND-D550B articulated dump truck and the 3HG-E450 excavator, the 120-4311 seal maintains integrity under high-pressure load conditions, preventing leaks and enhancing drivetrain reliability.
Technically, the 120-4311 Seal-O-Ring features advanced metallurgy-compatible materials that withstand mechanical stress and chemical degradation, ensuring long service life and reduced maintenance intervals. Its precise tolerances and robust design contribute to maintaining hydraulic system efficiency and preventing downtime caused by seal failure. This component is essential for maintaining OEM standards in repair and maintenance, guaranteeing performance consistency and operational safety in demanding construction and mining environments.
For professional-grade replacement parts that meet Caterpillar’s stringent quality requirements, explore the full specifications and purchase options here: 🔗 Caterpillar 120-4311 Seal-O-Ring at AllParts Expert. Ensure your heavy equipment operates at peak efficiency with this critical sealing solution.
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