Xinchai 498BPG Cylinder Block A498BZ-01001 – HELI Hangzhou JAC Liugong Forklift OEM

Xinchai 498BPG Cylinder Block A498BZ-01001 — 100% Original OEM for HELI Hangzhou JAC Tailift Liugong Forklifts

This is the Xinchai 498BPG cylinder block (part number A498BZ-01001) — the 100% original OEM cast iron engine block for Xinchai 498BPG diesel engines, the largest-displacement variant in the Xinchai 490/495/498 engine family. The 498BPG is a 3.2L 4-cylinder water-cooled diesel engine that powers a wide range of Chinese-brand 3-4 ton forklifts including HELI, Hangzhou (Hangcha), JAC, Tailift, and Liugong (LiuGong). The cylinder block is the structural backbone of the entire engine: it houses the precision-machined cylinder bores where the pistons generate power, the crankshaft main bearing saddles that align the rotating assembly, the camshaft bore for valve timing, the oil galleries that distribute 30-60 psi of pressurized oil to every bearing surface, and the water jacket passages that circulate coolant to remove combustion heat. A cracked or damaged cylinder block on this engine is typically caused by freezing with insufficient antifreeze concentration (water expands 9% when frozen, splitting the block at the thinnest water jacket walls), overheating from coolant loss that warps the cylinder head deck surface, or catastrophic connecting rod failure that punches through the cylinder wall.

This is 100% original Xinchai brand from Chongqing, China, with the quality assurance of a machinery test report and video outgoing-inspection provided. 1-year warranty. MOQ: 1 piece, delivery within 7 days. New condition. The 498BPG block is a wet-liner design — the cylinder liners are removable and have direct coolant contact on their outer surface. This means the block must be inspected for liner bore corrosion and O-ring groove condition before installing new liners. The main bearing saddles must be checked for alignment and diameter — a misaligned bearing bore from a previously overheated block will cause bearing failure within the first operating hours. The cylinder head deck surface must be checked for flatness across its entire length using a precision straightedge — a warped deck from overheating will not seal with any head gasket. The 498BPG block also has a specific oil galley plug configuration that must be verified before assembly — missing or loose gallery plugs cause immediate oil pressure loss on startup.

Compatible with HELI, Hangzhou (Hangcha), JAC, Tailift, and Liugong forklifts using Xinchai 498BPG diesel engines in the 3-4 ton class. Browse our cylinder block selection for Mitsubishi 4D34T and other engine platforms. For engine specifications, visit Xinchai official website.

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100% original Xinchai OEM. 1-year warranty. Confirm your forklift model and engine →