Transmission Clutch Housing for Heli FD20-30 Forklift — OEM 10063-11070 (490BPG Engine)

This transmission clutch housing (part number 10063-11070) is a direct OEM-spec replacement for the Heli FD20, FD25, and FD30 series 2-3 ton diesel forklifts equipped with the XinChai 490BPG engine. The clutch housing — sometimes called the bellhousing in automotive contexts — is a large structural casting that bolts between the rear face of the engine block and the front face of the transmission, forming the enclosed cavity that houses the clutch assembly, flywheel, and release bearing mechanism. This component performs several critical engineering functions simultaneously: it provides the rigid structural connection that maintains precise alignment between the engine crankshaft centerline and the transmission input shaft centerline; it protects the rotating clutch and flywheel assembly from dirt, dust, water, and debris ingress that would contaminate the clutch friction surfaces; it provides the mounting points for the clutch release fork, slave cylinder, and associated linkage; and it contributes to the overall structural stiffness of the engine-transmission power unit assembly. A cracked, warped, or impact-damaged clutch housing compromises transmission input shaft alignment, causing premature pilot bearing and input shaft bearing failure, difficult gear engagement, clutch chatter, and in severe cases complete transmission separation from the engine — a catastrophic failure that renders the forklift inoperable.

Cast from high-grade gray iron (equivalent to HT250 or GG25 specification) using precision sand-casting techniques, this clutch housing reproduces every critical dimensional feature of the original Heli OEM component. The engine block mounting face and the transmission mounting face are both CNC-machined to tight flatness tolerances (typically within 0.05mm across the full face) and precise parallelism to ensure that the transmission input shaft aligns concentrically with the crankshaft pilot bearing within the specified runout tolerance. The dowel pin holes are precision-reamed to ensure accurate positioning during assembly, and all threaded mounting holes are drilled and tapped to factory thread specifications with correct depth and pitch. Internal ribbing is cast into high-stress areas around the mounting flange and the clutch fork pivot boss to resist cracking under the sustained vibration and torque reaction loads experienced during forklift operation. Each housing is visually and dimensionally inspected before shipment.

Direct replacement for Heli FD20, FD25, FD30 diesel forklifts equipped with the XinChai 490BPG engine. Also compatible with Hangcha CPCD20-CPCD30 and Lonking LG20D-LG30D models sharing the same engine and transmission platform. During installation, always use the correct dowel pins for alignment, install a new clutch housing gasket, and torque all mounting bolts to specification in a cross-pattern sequence. Verify that the clutch release mechanism operates smoothly through the full travel range before reconnecting the transmission. For related clutch components and transmission parts, browse our transmission parts collection. Reference OEM specifications at Heli official website.

Technical Specifications

• SKU: 10063-11070
• OEM Number: 10063-11070
• Type: Transmission Clutch Housing / Bellhousing
• Material: High-Grade Gray Cast Iron (HT250), CNC Machined Mounting Faces
• Fitment: Heli FD20, FD25, FD30 — XinChai 490BPG Diesel Engine
• Application: 2-3 Ton Diesel Forklifts with Manual Transmission

Compatible Forklift Models

Kingstream clutch housings are individually packed in reinforced heavy-duty cartons with foam edge protectors. QC includes mounting face flatness measurement and dimensional inspection. 12-month warranty against casting defects. Contact us for pricing.