Eliminate coolant leaks and maintain absolute internal pressure containment with our Premium 20914266 Expansion Sealing Plugs for VOLVO EC210B, EC240B, and EC300D excavator series. Get direct factory pricing, bulk B2B discounts, and fast global air express shipping from China's leading powertrain components supplier today!
Lock In Casting Pressures, Stop Fluid Migration. Aged and rusted plugs cause hidden liquid leakage and pressure loss, easily triggering engine overheating and cylinder block damage. This high-strength press-fit plug tightly seals casting channels, fully protecting D4D/D6D/D6E/D7E engine internal fluid circulation system.
High Rigidity Stamped Steel Stable structural toughness, resist pressure impact and avoid deformation ejection failure.
Anti-rust Passivation Coating Effectively prevent pitting corrosion and scale damage under long coolant immersion.
Precision Interference Taper Perfect matching installation aperture, no seepage gap on sealing contact surface.
Synchronized Thermal Expansion Consistent expansion shrinkage with cylinder block, reliable sealing under drastic temperature change.
| Technical Parameter | Specification Details |
|---|---|
| Main Part Number | 20914266 / VOE20914266 |
| Product Type | Casting Core Cup Expansion Freeze Sealing Plug |
| Applicable Medium | Pressurized antifreeze, high temperature oil vapor, rust inhibitor liquid |
| Main Material | High strength thick gauge stamped carbon steel alloy |
| Installation Way | Heavy interference press-fit fixed sealing |
Crawler Excavators: EC140B,EC160B,EC180D,EC200B,EC200D,EC210B,EC210B Prime,EC210D,EC220D,EC240B,EC240B Prime,EC250D,EC290B,EC290B Prime,EC300D
Expansion plugs need overall renewal during engine overhaul. Thin inferior plugs are prone to rust penetration and sudden pop-out, bringing severe overheating risk. Maintenance workshops and parts distributors recommend stocking genuine 20914266 plugs. Combine with other expansion plugs, cooling gaskets and head gaskets to assemble complete engine block maintenance kit.
Coolant crystallization residue adheres to engine outer wall, obvious slow leakage trace
Coolant level drops frequently, no visible leakage on external pipelines and joints
Plug inner wall severely corroded and pitted, thin wall easy to crack and lose sealing effect
All models for compatibility reference only. Premium expansion plug stably locks internal casting pressure, eliminates hidden fluid leakage faults and effectively protects engine block service safety.