Stop oil vapor weeping and crankcase contamination with our Premium 20412589 (20405835) Engine Oil Filler Caps for VOLVO EC210B, EC240B, and EC300D excavators. Get direct factory pricing, bulk B2B discounts, and fast global air express shipping from China's leading mechanical parts networks supplier today!
Seal Your Crankcase, Protect Your Lubrication. Failed filler cap causes oil gas escape and foreign particle invasion, deteriorating engine oil and scratching internal moving parts. This threaded sealing cap firmly locks crankcase opening, keeping lubrication system clean and stable for Volvo excavators.
Fiber Reinforced Composite Shell Resist high temperature aging, impact and crack damage under severe working conditions.
Deep Anti-loosening Thread Perfectly match original filler neck, avoid loosening and falling off under long engine vibration.
Fluorocarbon Elastic Seal Strong resistance to high-temperature oil and corrosive gas, maintain lasting sealing elasticity.
Slip-proof Hand Grip Design Convenient assembly and disassembly, achieve tight locking seal without extra tools.
| Technical Parameter | Specification Details |
|---|---|
| Main Part Number | 20412589 / VOE20412589 |
| Interchange Part | 20405835 / VOE20405835 |
| Product Type | Cylinder Head Cover Crankcase Oil Filler Sealing Cap |
| Applicable Medium | High temp lubricant, crankcase blow-by vapor, construction dust and debris |
| Main Material | Glass fiber reinforced polymer + nitrile fluororubber sealing ring |
| Structural Characteristic | Vibration-proof threaded lock, dual dustproof & anti-leakage performance |
Medium Crawler Excavators: EC135B, EC140D, EC160D, EC180D, EC210B, EC210B Prime
Heavy Crawler Excavators: EC240B, EC240B Prime, EC290B, EC290B Prime, EC300D
Oil filler cap belongs to easily worn and lost daily maintenance part. Poor sealing accelerates oil deterioration and component wear. Global dealers and mine warehouses are advised to stock genuine 20412589 caps. Match with housing gaskets, intake seals and cooling pressure caps to complete upper engine spare parts set.
Oil vapor leaks outward, greasy dirt mixed dust accumulates around filler port
Cap thread cracks or locking lug breaks, unable to fasten and seal tightly
Visible blow-by gas escapes from gaps during idling, sealing performance declines sharply
All models for compatibility reference only. Reliable sealing cap isolates external contaminants effectively, keeps crankcase clean and cuts abnormal wear failure of internal engine parts.