Connecting Rod Bearing Set for Forklift Diesel Engines — Precision Replacement

This connecting rod bearing set is designed as a direct replacement for the big-end bearing shells in 2-3.5 ton diesel forklift engines including XinChai 490/4D27, Isuzu C240, QuanChai, and Dachai 498 series. The connecting rod bearings sit at the critical interface between the connecting rod big end and the crankshaft rod journal, transferring the extreme cyclic forces of combustion — which can exceed 120 bar in modern diesel engines — while maintaining a hydrodynamic oil film that prevents metal-to-metal contact. When connecting rod bearings wear beyond tolerance, symptoms include a distinct rhythmic knocking sound that increases with engine speed, low oil pressure, and eventual rod journal scoring that can lead to catastrophic engine failure. Timely replacement during scheduled overhaul intervals is the most cost-effective approach to ensuring long-term engine reliability.

Each bearing shell is constructed using tri-metal composite technology: a hardened steel backing provides structural integrity under high-load conditions, a copper-lead intermediate layer offers superior thermal conductivity and fatigue resistance, and a precision-applied aluminum-tin overlay delivers excellent embeddability for wear particles and conformability to minor crankshaft surface imperfections. The bearing shells are manufactured to strict OE wall-thickness tolerances to ensure correct oil clearance without rework, while the integrated oil groove and spreader channel design guarantees rapid oil film formation during cold starts and sustains full hydrodynamic lubrication throughout the operating RPM range. Locating tabs ensure correct orientation, and the calibrated crush height provides secure, rotation-free seating in the connecting rod bore.

Compatible with Heli CPCD20-CPCD35, Hangcha CPCD20-CPCD35, Lonking LG20D-LG35D, TCM FG/FD-series, and Toyota 2-3.5 ton diesel forklifts using common Chinese and Japanese engine platforms. Always replace connecting rod bearings as a complete engine set, use assembly lubricant during installation, and torque connecting rod bolts to manufacturer specifications with a calibrated torque wrench. For main bearings and complete engine overhaul kits, visit our forklift engine parts category. Cross-reference bearing specifications at Heli official website.

Technical Specifications

• SKU: CRBSET
• Type: Connecting Rod Bearing Set (Big-End Shells)
• Material: Tri-Metal — Steel Back / Copper-Lead / Aluminum-Tin Overlay
• Fitment: XinChai 490/4D27, Isuzu C240, QuanChai, Dachai 498 Engines
• Application: 2-3.5 Ton Diesel Forklifts
• Warranty: 12 Months

Compatible Forklift Brands

Kingstream connecting rod bearings are individually oil-paper wrapped and packed in compartmentalized rigid cartons to protect precision surfaces during shipping. All bearing sets undergo dimensional quality control including wall thickness mapping and crush height verification. 12-month replacement warranty. Contact us for bulk pricing, engine overhaul kit inquiries, or technical compatibility verification.