Forklift Accessories Connection Rod Bearing XC490-4D27 for Xinchai Forklift

Connecting Rod Bearing for XinChai 490 / 4D27 Engine — XC490-4D27

This XC490-4D27 connecting rod bearing (big-end bearing shell) is precision-engineered for the XinChai 490 and 4D27 series diesel engines, the workhorse powerplants in Heli 2-3.5 ton forklifts and countless Chinese-manufactured industrial vehicles. The connecting rod bearing sits between the connecting rod big end and the crankshaft journal, providing a low-friction sliding surface that withstands extreme cyclic combustion loads and high-speed reciprocating motion. A worn or spun connecting rod bearing can cause knocking, oil pressure loss, and catastrophic crankshaft damage — making timely replacement at the first sign of abnormal engine noise essential to avoiding costly engine overhaul.

Manufactured from a bi-metal or tri-metal composite with a steel backing shell and a precision-applied bearing overlay of aluminum-tin or copper-lead alloy, this bearing shell is designed to OE dimensions with tight wall-thickness tolerances for proper oil clearance. The overlay provides excellent embeddability for microscopic wear particles and conformability to minor shaft misalignment, while the steel back ensures structural integrity under combustion pressures exceeding 100 bar. An oil groove and spreader channel ensure rapid lubrication film formation during cold starts and maintain a full hydrodynamic oil wedge at operating speeds, minimizing metal-to-metal contact and extending crankshaft and connecting rod service life.

Direct fit for XinChai 490 and 4D27 engines used in Heli CPCD20-CPCD35, Hangcha CPCD20-CPCD35, and Lonking LG20D-LG35D forklifts. Always replace connecting rod bearings as a complete set and follow engine manufacturer torque specifications during reassembly. For related engine overhaul components, visit our forklift engine parts collection. Cross-reference engine specifications at XinChai Engine official site.

Technical Specifications

• SKU: XC490-4D27
• Type: Connecting Rod Bearing (Big-End Shell)
• Material: Bi-Metal / Tri-Metal Composite — Steel Back + Bearing Overlay
• Fitment: XinChai 490 / 4D27 Diesel Engine
• Application: Heli CPCD20-CPCD35, Hangcha, Lonking Forklifts

Compatible Forklift Models

Kingstream engine bearings are individually oil-wrapped and packed in compartmentalized boxes to prevent surface damage during transit. Every batch is dimensionally inspected for wall thickness, crush height, and spread to meet OEM specifications. 12-month warranty against material and manufacturing defects. Contact us for engine overhaul kit pricing, bulk bearing set orders, or technical fitment verification for your specific engine serial number.