Piston Rings 3802421 for 4BT 6BT Diesel Engine

Keywords: 3802421 piston rings, 4BT 6BT engine piston ring set, excavator diesel engine piston rings, construction machinery engine overhaul spare parts

Product Overview

Piston Rings Part No.3802421 is a critical engine sealing component specially matched for 4BT & 6BT diesel engines, widely used on excavators and heavy‑duty construction machinery. It realizes cylinder compression sealing, scrapes off excess cylinder‑wall oil and controls oil consumption. Effectively solve engine burning‑oil, blow‑by gas, power loss and rough idle caused by aging, wear or fracture of original piston rings. Each set of piston rings undergoes strict dimensional and surface inspection before export carton packaging and delivery.

Detailed Specifications

Key Features & Advantages

• High‑strength alloy cast iron material, excellent wear‑resistance, heat‑resistance and deformation‑resistant performance under heavy‑duty working conditions.
• Precision opening gap and surface treatment, good cylinder‑wall fitting performance, reliable compression sealing and oil‑scraping effect.
• Effectively eliminate excessive oil consumption, blow‑by gas emission and insufficient engine power caused by worn or stuck original piston rings.
• Stable elasticity performance, keep long‑term sealing effect, reduce abrasion to cylinder liner and piston.
• Perfect fit for 4BT, 6BT engine maintenance and overhaul projects.
• Stable interchangeability, can directly replace original OEM spare parts.

Application Scope

Fit Equipment: Excavators and other heavy‑duty construction machinery equipped with 4BT, 6BT diesel engine ‑ Widely used for machinery repair shops, engine rebuilding factories and heavy‑duty equipment overhaul services.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

Packaging & Shipping

Export carton with shock‑proof protective packaging, avoid collision and scratch during long‑distance transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.