Lip Type Oil Seal for Caterpillar Machinery 1K-6982 1K6982

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AftermarketRef. OEM OEM OEM

Lip Type Oil Seal for Caterpillar Machinery 1K-6982 1K6982

Heavy-duty lip type oil seal ring, part number 1K-6982 (cross references 1K6982, 1506751, 1672463, 2R0729, 2299381, 7J4407, 7J8273, 7L2375, 8C3840, CT2253281). Formulated from wear-resistant elastomeric compounds to withstand extreme hydraulic pressures, heat, and contaminants, preventing fluid leaks. Fits Caterpillar excavators, backhoe loaders, wheel loaders, and motor graders including 312, 315, 416, 420, 428, 432, 442, 950, 966, 980, 14H, 16H, and 215B models.

Fits

Machine CategoryMotor GradersTrack-Type ExcavatorsBackhoe Loaders430, 432, 442, 444 SeriesWheel Loaders

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Description

Key features

Spring-Loaded Dynamic Sealing LipIntegrates a calibrated garter spring providing consistent radial loading against the ground shaft surface, effectively accommodating dynamic eccentricity and thermal expansion.

Rigid Stamped Steel Inner Armor CaseHeavy-gauge carbon steel insert delivers high press-fit retention in the housing bore, preventing seal spinning or blow-out under internal hydrodynamic pressure spikes.

High-Temperature Resistant ElastomerPremium rubber compound resistant to mineral and synthetic transmission oils, high-pressure extreme-pressure greases, hydrocarbons, and operating temperatures up to +120°C (with peaks up to +150°C).

Dual-Lip Contamination ProtectionFeatures an integrated secondary dust wiper lip designed to block silica sand, grit, water, and jobsite mud from contacting the primary sealing interface.

Factory-Accurate Caterpillar AlignmentStrictly manufactured to OEM dimensional tolerances, ensuring straightforward, uniform installation and long operational service life without causing premature shaft grooving.

Compatibility

Machine Category	Series / GroupSupported Caterpillar Models
Motor Graders	14 Series • 16 Series1414H • 1616H
Track-Type Excavators	300 Series • 200 Series312312C • 315315C • 215B
Backhoe Loaders	416420424428 Series416416C416D416E • 420420D • 424424D • 428428D
430, 432, 442, 444 Series	430430E • 432432D • 442442D442E • 444444E
Wheel Loaders	900 Series950950H • 966966H • 980980H

Specifications

Primary Part Number	1K-6982 / 1K6982
OEM Cross-References & Equivalent Part Numbers	1506751, 1672463, 2R0729, 2299381, 7J4407, 7J8273, 7L2375, 8C3840, CT2253281
Target Equipment Manufacturer	Caterpillar (CAT)
Component Classification	Radial rotary shaft lip seal (oil seal)
Sealing Element Material	High-grade wear-resistant elastomeric compound with high chemical and thermal stability
Structural Case & Spring	Stamped carbon-steel metal insert with spring-steel garter tension coil
Primary Function	Rotary lubricant retention and positive exclusion of field dirt, mud, and water