Protect Your Engine’s Core with Genuine WEICHAI Precision. The cylinder liner seal is a small but mission-critical component of your Weichai diesel engine parts arsenal. Our Genuine WEICHAI Cylinder Liner Seals (part numbers 3804 and 3805) are engineered to create an impenetrable barrier between the cylinder liner and engine block, preventing costly coolant and oil leaks that compromise performance. Designed for the robust WD615, WP12, and WP13 engine series—staples in heavy-duty trucks, construction machinery, and generators—these seals ensure optimal compression, temperature regulation, and lubrication. Choosing genuine Weichai engine parts isn’t just maintenance; it’s an investment in avoiding catastrophic engine failure and maximizing uptime. Trust WEICHAI to safeguard your equipment’s heart.

Parameter	Details
Product Name	Genuine WEICHAI Cylinder Liner Seal Kit
Applicable Brand	WEICHAI
Part Numbers	3804, 3805 (Assorted sizes for specific cylinder positions in WD615/WP12/WP13 engines)
Engine Compatibility	WEICHAI Diesel Engines: WD615, WP12, WP13 (Verify fitment for your specific engine model/year)
Application	Heavy-duty Trucks (e.g., Sinotruk, Shacman), Construction Machinery (Excavators, Loaders), Generator Sets (Gen-Sets), Marine Engines
Core Function	Seals the interface between the cylinder liner and engine block to prevent leakage of coolant (water jacket) and lubricating oil, maintaining cylinder compression and thermal efficiency.
Material	High-temperature resistant elastomer (e.g., nitrile rubber/NBR or fluorocarbon/FKM) with steel or composite reinforcement for durability against engine vibrations and fluid exposure.
Key Features	– Direct OEM Replacement for WD615/WP12/WP13 – Zero Leakage Guarantee (Precision-Molded) – Resists Heat, Oil, and Coolant Degradation – Maintains Cylinder Wall Integrity – Essential for Engine Overhauls & Repairs
Installation Notes	Requires professional fitting; ensure cylinder liner surface is clean and undamaged. May require honing or reaming for optimal seal.
Package Includes	1 x Genuine WEICHAI Cylinder Liner Seal (Part #3804 or 3805; specify size when ordering). Kits may include multiple seals for full engine assembly.
Warranty	Standard WEICHAI Genuine Parts Warranty