65.02503-8058 Piston Ring for DB58 DB58T Doosan Daewoo

Our 65.02503-8058 piston ring set serves as a direct OEM replacement for Doosan Daewoo DB58 and DB58T series engines. It fits widely used excavators, wheel loaders and diesel generators for engine overhaul projects.
We make these piston rings from high-chrome alloy cast iron. We add nitriding and hard chrome plating on the surface. The special treatment brings strong wear resistance and stable sealing performance under frequent construction working conditions.
These rings control engine oil consumption effectively and eliminate blue smoke. With strict OEM dimensional standards, you can install them directly without any modification. We keep large stock to support bulk orders for repair shops and global distributors.

Parameters

OE Part Number: 65.02503-8058
Compatible Engines: Doosan Daewoo DB58, DB58T, DB58TIS
Compatible Equipment: DH220, DH225-7 excavators, wheel loaders, diesel generators
Standard Cylinder Bore: 102mm
Piston Ring Configuration: 2 compression rings + 1 coil spring combination oil ring (single cylinder set)
Common Specifications:STD standard size; +0.25mm, +0.50mm oversize repair sizes are available
Material: High chromium alloy cast iron
Surface Treatment: Nitriding + hard chrome plating
Compatible Cylinders: 6-cylinder engines (complete set)
Packaging: Vacuum-sealed moisture-proof packaging, neutral export packaging supported
Warranty Period: 6–12 months

Core Advantages

• First, we produce every piston ring according to original factory tolerances. The precise size guarantees tight fitment and fast installation. You save much time on engine maintenance.
• Second, the chrome-plated surface resists high temperature and carbon accumulation. The rings rarely get stuck even under long-term intermittent heavy loads on construction sites.
• Third, well-designed compression rings maintain stable cylinder pressure and recover engine power. Meanwhile, the combined oil ring scrapes excess lubricant reliably. It solves common troubles including burning oil, difficult startup and high fuel cost.
• Fourth, this piston ring fits multiple types of medium-sized construction machinery. It delivers consistent performance for both equipment maintenance and second-hand machine renovation.
• Finally, we prepare sufficient stock for standard and oversize specifications. We offer competitive wholesale prices, fast global delivery and complete after-sales warranty for all bulk buyers.

Other Doosan Daewoo Piston Rings

Not sure whether this piston ring matches your machine? Send us your OE number or equipment model through online contact. We will check stock and send you a favorable quotation right away.