Mahle 65.02503-8236 Doosan D2366 DE12 Piston Ring Set 3.5kx3.0x4.0mm

Product Details

Product Overview

This MAHLE piston ring set, OEM number 65.02503-8236, is a high-quality replacement component engineered specifically for Doosan Daewoo D2366 and DE12 diesel engines. Designed for heavy-duty applications in construction machinery, these rings provide the precise sealing and oil control required for optimal engine performance. The set includes rings with dimensions of 3.5mm x 3.0mm x 4.0mm, ensuring a perfect fit for the specified engine models.

As a product from MAHLE, a globally recognized leader in engine component manufacturing, this piston ring set meets rigorous OEM standards. It is commonly used in excavators and other heavy equipment powered by the D2366 or DE12 engine platforms, offering a reliable solution for engine rebuilds and overhauls.

Key Features & Benefits

• OEM Specification Fitment: Exact match to OEM part number 65.02503-8236 for Doosan Daewoo D2366 and DE12 engines, eliminating fitment guesswork.
• Premium MAHLE Quality: Manufactured by MAHLE, a trusted tier-1 supplier to major engine manufacturers, ensuring consistent material quality and dimensional accuracy.
• Optimized Ring Profile: Ring pack dimensions (3.5kx3.0x4.0mm) are engineered for optimal compression sealing, oil control, and heat transfer in heavy-duty diesel applications.
• Enhanced Durability: Constructed from high-grade materials to withstand the extreme pressures and temperatures found in turbocharged diesel engines, extending service life.
• 100% New Condition: Supplied as a brand-new, unused component in authentic MAHLE packaging, ensuring zero wear and immediate reliability.
• Direct Replacement for Overhauls: Ideal for engine rebuilds on Doosan Daewoo machinery, helping restore compression and reduce oil consumption.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following OEM part numbers:

• MAHLE: 65.02503-8236
• Doosan Daewoo: Compatible with D2366 and DE12 engine service parts

Note: Always verify your engine model and existing ring dimensions before purchase to ensure compatibility.

Compatibility

This piston ring set is specifically designed for and commonly used in the following engine applications:

• Engine Models: Doosan Daewoo D2366, Doosan Daewoo DE12
• Equipment Applications: Excavators, heavy construction machinery, and industrial equipment powered by these engine platforms.

Please check your engine’s serial number and existing piston ring dimensions (3.5kx3.0x4.0mm) to confirm fitment.

Global Supply & Distribution

We maintain a robust global supply chain to serve B2B clients worldwide. This part is available for immediate dispatch from our distribution center in Shanghai, China. We offer fast, reliable shipping to major industrial centers and ports across:

• North America: Los Angeles, Houston, Chicago, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Dubai, Sydney, Busan
• Middle East & Africa: Jebel Ali, Jeddah, Durban, Lagos
• Latin America: Santos, Callao, Manzanillo, Buenos Aires

Our export experience covers over 30 countries, with flexible shipping options including air freight, sea freight (FCL/LCL), and express courier services to meet urgent maintenance needs.

Quality Assurance

As a MAHLE-branded product, this piston ring set is manufactured under strict quality control systems that meet or exceed original equipment specifications. While this specific listing does not include a machinery test report or video inspection, the product is sourced from a reputable supply chain with a focus on authenticity and quality.

• Manufacturing Standard: OEM-grade production processes
• Certification: MAHLE brand quality assurance
• Warranty: Standard warranty applies; after-warranty online support is available
• Inspection: 100% new condition guaranteed with authentic MAHLE packaging

FAQ

Q1: How do I confirm this piston ring set will fit my Doosan Daewoo engine?
A: First, verify your engine model is either a D2366 or DE12. Then, measure the dimensions of your existing rings. This set has a top ring height of 3.5mm, second ring height of 3.0mm, and oil ring height of 4.0mm. Cross-reference your engine’s OEM part number with our listed OEM number 65.02503-8236 for the most accurate fit confirmation.

Q2: What is the recommended installation procedure for these piston rings?
A: Installation should be performed by a qualified diesel mechanic. Ensure the cylinder bore is properly honed and cleaned. Install rings using a quality ring expander tool to avoid twisting or breaking. Stagger the ring end gaps at 120-degree intervals around the piston, ensuring they do not align with the wrist pin or thrust faces. Always lubricate the rings and piston with clean engine oil before assembly.

Q3: What is the expected lifespan of these MAHLE piston rings in a DE12 excavator engine?
A: Lifespan depends heavily on operating conditions, maintenance schedules, and fuel quality. In a well-maintained engine with proper filtration and regular oil changes, these OEM-quality MAHLE rings can often match the original engine’s overhaul interval, typically exceeding 8,000 to 12,000 hours in heavy equipment applications. Regular compression testing is recommended to monitor ring condition.