For 420-0653 4200653 Water seals CAT 3508 3512 3516 Excavator Engine Parts

For 420-0653 4200653 Water seals CAT 3508 3512 3516 Excavator Engine Parts

Specification

Description

Part Number 420-0653 (4200653) cylinder head water seal is a standard specification sealing spare part for 3508, 3512, 3516 series excavator diesel engines. It is specially applied to the engine cylinder head water channel area, serving as the core component to seal water channels and prevent coolant leakage. Adopting integrated molding sealing structure, it features original standard precise size, supports direct replacement installation, perfectly fits the water channel cavity of matching engine cylinder head, and effectively solves faults including water channel seepage, coolant leakage and cylinder body corrosion.

Advantage

High-precision size matching: Produced in strict accordance with original part tolerance standard, its inner diameter, outer diameter and height fully fit the mounting hole, ensuring tight installation without looseness or deviation and maximum sealing fit.
High-quality anti-corrosion sealing material: Made of special heat-resistant & hydrolysis-resistant fluororubber, resistant to coolant corrosion and oil erosion, no expansion, shrinkage, cracking or aging under long-term immersion.
Integrated sturdy structure: One-piece molding design without splicing gaps, with high structural strength and excellent compression & deformation resistance, not easy to fail or fall off under long-term engine vibration conditions.
Easy direct replacement: Directly replace old parts without modification or polishing, with high installation efficiency and greatly reduced maintenance working hours & disassembly cost.
Long-acting stable sealing: Optimized for high-temperature & high-pressure engine water channel environment, it permanently blocks coolant leakage and protects internal cylinder head & cylinder body structure from rust and damage.

Performance

Temperature resistance performance: Stably adapts to engine working temperature range from -25℃ to 150℃ with alternating hot and cold conditions. No softening & deformation at high temperature, no brittleness & hardening at low temperature, and sealing performance will not degrade under cold-hot cycle conditions.
Media resistance performance: Highly resistant to corrosion and immersion of ethylene glycol antifreeze, engine coolant, diesel and engine oil. It maintains stable elasticity and sealing hardness for long-term use without swelling or dissolution.
Pressure-resistant sealing performance: Can bear regular circulating water pressure of 0.3-0.8MPa in engine water channel. The sealing surface fits tightly under high-pressure conditions, with no leakage or pressure relief.
Fatigue & vibration resistance performance: Excellent dynamic fatigue resistance, able to withstand continuous engine vibration and start-stop cycle impact. Its long service life is far superior to ordinary rubber seals.
Adaptability performance: Fully fits cylinder head water channel sealing positions of all 3508, 3512, 3516 excavator industrial diesel engines, with 100% original standard matching installation size.

FAQ

Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

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