Crankshaft Thrust Bearing for Dachai 498 Diesel Engine — Axial Play Control

This crankshaft thrust bearing (thrust washer) is precision-manufactured for the Dachai 498 diesel engine, a widely used powerplant in 2-3.5 ton Chinese forklifts and light commercial vehicles. Unlike radial main bearings that handle rotational loads, the thrust bearing controls crankshaft axial (end-to-end) movement — the forward-and-backward play that must be kept within a tight specification, typically 0.05-0.25mm. Excessive crankshaft end play, caused by a worn thrust bearing, leads to clutch disengagement issues in manual transmission applications, uneven timing belt or gear wear, main bearing edge loading, and ultimately damage to the crankshaft thrust face and engine block saddle surfaces. Replacing the thrust bearing during an engine overhaul is essential to restoring proper crankshaft axial positioning and preventing cascading engine damage.

Manufactured from premium bi-metal or tri-metal bearing material with a steel backing and a precision-applied bearing overlay alloy, this thrust washer is machined to exact OE thickness specifications for the Dachai 498 engine. The bearing surface features integrated oil grooves that channel pressurized engine oil across the thrust face, ensuring continuous lubrication and cooling under all operating conditions including high clutch-depression loads that push the crankshaft forward. The flange design provides a generous load-bearing surface area to distribute axial forces evenly, while the locating tab ensures correct orientation and prevents rotation within the bearing saddle. Dimensional tolerances are held to OE standards for thickness, parallelism, and surface finish to guarantee proper end-play clearance after installation.

Compatible with Heli CPCD20-CPCD35, Hangcha CPCD20-CPCD35, and Lonking LG20D-LG35D forklifts equipped with the Dachai 498 engine. Also fits light trucks and industrial equipment powered by the same engine family — including Foton, JAC, and Yuejin vehicles using the 498 platform. Always measure crankshaft end play with a dial indicator before and after installation; replace thrust bearings in pairs and select correct thickness (standard or oversize) based on measured clearance. For complementary engine overhaul components, browse our forklift engine parts collection. Reference engine specifications at the Heli official website.

Technical Specifications

• SKU: DACH498TB
• Type: Crankshaft Thrust Bearing / Thrust Washer
• Material: Bi-Metal / Tri-Metal — Steel Back + Bearing Alloy Overlay
• Fitment: Dachai 498 Diesel Engine
• Function: Controls Crankshaft Axial End Play (0.05-0.25mm)
• Application: 2-3.5 Ton Forklifts (Heli, Hangcha, Lonking)

Compatible Forklift & Vehicle Models

Kingstream thrust bearings are individually oil-paper wrapped and packed in rigid boxes to protect precision surfaces during transit. Every batch is inspected for thickness, parallelism, and surface finish with full material traceability. 12-month warranty against manufacturing defects. Contact us for engine overhaul kit pricing, bulk bearing orders, or technical fitment verification for your engine serial number.