Sinotruk HOWO Piston Ring Set 082V02503-6812 – For WD615 Engine | OEM Quality Replacement

Product Description: Sinotruk HOWO Piston Ring Set (Part No. 082V02503-6812)

Maximize engine efficiency and compression with this high-performance Piston Ring Set (082V02503-6812) — an OEM-equivalent replacement designed specifically for Sinotruk WD615 series engines, used in HOWO A7, T5G, T7H, Sitrak C7H/C9H, and other CNHTC heavy-duty trucks.

 This 3-piece ring set includes:

• Top Ring: Cast iron with chrome-plated face for superior wear resistance and scuff protection

• Second Ring: Tapered scraper ring to reduce carbon buildup and improve oil scraping

• Oil Control Ring: Dual-rail design with expander spacer for consistent oil regulation

Precision-machined to exact factory tolerances, each ring ensures optimal cylinder sealing, minimizes blow-by gases, reduces oil consumption, and restores lost power during engine overhauls or rebuilds.

The materials and coating technology are engineered to withstand extreme temperatures, high pressure, and prolonged operation under heavy load conditions — making it ideal for long-haul transport, mining, construction, and fleet maintenance operations.

 Whether you're repairing one cylinder or rebuilding an entire engine block, this genuine-specification piston ring set delivers reliable performance, easy installation, and extended service life.

Technical Specifications

Part Number:  082V02503-6812 
OEM Equivalent WG22025036812 
Application Sinotruk HOWO A7, T5G, T7H, Sitrak C7H/C9H 
Engine Model WD615.62 / WD615.77 / WD615.87 
Bore Size 126 mm 
Ring Configuration 3-Piece Set: Top + Second + Oil Ring 
Top Ring Type Rectangular, Chrome-Faced Cast Iron 
Second Ring Type Napier/Taper Scraper 
Oil Ring Type Twin-Rail with Expander Spacer 
Ring Thickness Top: 2.5mm, Second: 2.5mm, Oil: 4.0mm 
End Gap (Standard Bore) Top: 0.8–1.0mm, Second: 0.7–0.9mm, Oil: Pre-Gapped 
Surface Treatment Chrome Plating (Top), Molybdenum Coating (Optional) 
Material High-Carbon Cast Iron + Spring Steel Expander 
Certification ISO9001, CNHTC Quality Standard