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21486084 Premium Heavy-Duty Engine Crankshaft Front Oil Seal - High-Velocity Viton Elastomer Hydrodynamic Lip Barrier for VOLVO D6E, D7E, D6J, D7J Engines, EC210D, EC290B, and EC300E Series Excavators

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  2. 21486084 Premium Heavy-Duty Engine Crankshaft Front Oil Seal - High-Velocity Viton Elastomer Hydrodynamic Lip Barrier for VOLVO D6E, D7E, D6J, D7J Engines, EC210D, EC290B, and EC300E Series Excavators
21486084 Premium Heavy-Duty Engine Crankshaft Front Oil Seal - High-Velocity Viton Elastomer Hydrodynamic Lip Barrier for VOLVO D6E, D7E, D6J, D7J Engines, EC210D, EC290B, and EC300E Series Excavators

Stop destructive front-end oil leaks and protect your engine accessory belts with our Premium Heavy-Duty Crankshaft Front Oil Seal 21486084 (20412286). Molded from advanced high-temperature Viton elastomer with a built-in hydrodynamic pumping lip and dust shield for VOLVO EC210D, EC290B, and EC300E excavators, it ensures a leak-free seal. Factory-direct B2B wholesale pricing with fast air express international shipping. Contact our sales engineering support team today with your engine model for bulk tiered quotes!

VOLVO 21486084 Front Crankshaft Oil Seal | VOE21486084 / 20412286 Specification

Genuine VOLVO Front Crankshaft Oil Seal 21486084 Specification

The Genuine VOLVO Front Crankshaft Oil Seal (21486084 / VOE21486084 / 20412286) is a precision sealing part for 4-cylinder and 6-cylinder inline diesel engines. Installed inside front timing gear cover, it seals lubricant inside gear chamber and blocks external sand and dust. Hydrodynamic lip sends leaked oil back during shaft rotation. Timely replacement avoids oil loss and low pressure fault, and protects front drive belts and cooling components from oil corrosion damage.

Core Technical Advantages

  • High Grade FKM Viton Material Superior heat and oil resistance, resist aging and cracking under long high-temperature working conditions.

  • Hydrodynamic Pumping Lip Spiral groove design recycles escaping oil efficiently, greatly improving sealing performance.

  • Integrated Dust Wiper Lip Outer protective lip isolates abrasive impurities, reduce wear on main sealing edge.

  • Stainless Steel Tension Spring Offers uniform clamping force, maintains stable seal against shaft deflection and engine vibration.

Technical Specifications

Engineering ParameterTechnical Data & Specification Details
Genuine OEM Part No.21486084 / VOE21486084 / 20412286
Product ClassificationTiming Side Front Crankshaft Radial Lip Oil Seal
Applicable MediumMineral & synthetic engine oil, blow-by exhaust gas
Main Sealing MaterialHigh temperature resistant FKM Viton elastomer
Tension StructureAnti-rust stainless steel garter spring ring
Outer HousingThickened carbon steel reinforced rigid shell

Master Application Fleet Guide

This front crankshaft seal fits multiple medium, heavy and large tonnage VOLVO excavators and wheeled diggers.

  • Medium Heavy Crawler Excavators: EC200D, EC200E, EC210D, EC210E, EC220D, EC240B, EC240B Prime

  • Large Quarry Excavators: EC250D, EC250E, EC290B, EC290B Prime, EC300D, EC300E, EC350D

  • Wheeled Excavator: EW140B high-speed mobile construction equipment

Critical B2B Procurement & Maintenance Guidelines

B2B Procurement Strategy

Front crankshaft seal is vital front-end sealing spare part. Leakage will erode drive belts and cause premature fracture, also lead to shaft surface abrasion. Inferior seal short service life brings repeated disassembly cost. It is recommended to stock original 21486084 seals. Match with rear crank seal, gear housing cover and tensioner pulley to assemble complete front overhaul package.

Common Failure Symptoms

  • Engine oil splatters and accumulates on front gear cover, obvious dripping below front pulley

  • Drive belt aging, slipping and abnormal squealing occur frequently due to oil contamination

  • Oil mixed mud adheres around harmonic balancer, external dust invades and accelerates internal wear

Standard Overhaul Installation Operation
Park machine on flat ground, lower bucket, shut down engine and cut off power, fully cool powertrain. Remove accessory belts and vibration damper to expose front crankshaft. Extract old seal with special puller without scratching shaft surface. Clean mounting bore and shaft thoroughly, install repair sleeve if wear groove exists. Mount new seal dry following factory requirement, press vertically and evenly with dedicated tool. Ensure seal is square and flush with housing. Reassemble parts and fasten bolts to standard torque. Refill engine oil, start engine and inspect no oil leakage at front shaft position.

Global Brand Cross-Reference Matrix

BrandCross Reference Part Information
VOLVO Original Part Number21486084 / VOE21486084
Interchangeable Part20412286 / VOE20412286
Universal Industry NameFront Crankshaft Oil Seal, Timing Side Main Seal, Front Radial Lip Seal
Commercial Inquiry & Global Logistics
Supplier: Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]
Logistics: Global Sea Freight and Fast-Track Industrial Express Ready

All machine models are for compatibility reference only. This premium front crankshaft seal effectively prevents oil leakage and impurity entry, protects front accessory system and maintains stable engine running condition.

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