Heli G-Series (CPCD20-35) Forklift Parts: A Practical Guide to Keeping It Running
The Heli G-Series is the workhorse update to Heli's hugely popular H2000 line — a 2.0 to 3.5 tonne (CPCD20-35) internal-combustion counterbalance truck built for warehouses, lumber yards, brickworks and general industry. It is one of the most common Chinese-built forklifts in service today, which is good news for owners: parts are widely available, and because the G-Series shares most of its driveline, mast and hydraulics with the H2000, a huge catalogue of components will fit. The catch is that “will fit” depends on your exact build — engine, transmission generation and capacity all matter — so the golden rule before ordering anything is to read the data plate and match the OEM number stamped on the old part. Everything below is organised by system, with the symptoms that usually send a G-Series into the shop and the parts that fix them. Start by browsing the full Heli forklift parts collection.
Engine and cooling: the first things to check when it runs hot
Most G-Series trucks leave the factory with one of three engines: the Chinese Xinchai 490/495/498, the Isuzu C240, or the Yanmar 4TNE98. All three are simple, reliable diesels, but the cooling system is what fails first in dusty yards. If the temperature gauge climbs under load, start with airflow — a cracked or warped cooling fan moves far less air than it should. The Cooling Fan Blade F400-28-52-7 is the direct replacement for Xinchai 495BPG/498 engines and is a five-minute swap that often cures a “runs hot in the afternoon” complaint. The air side matters just as much: a clogged element starves the engine, drops power and drives exhaust temperatures up. The Air Cleaner Assembly 234A1-00101 fits the Heli CPCD30-35 with the 4TNE98/C240 and should be checked at every service and replaced whenever it is oil-soaked or damaged. Explore the rest of the engine parts and filters ranges for tune-up items.
Mast and lift cylinders: chasing drift, jerky lifts and worn rollers
The mast takes the most abuse on any forklift, and two symptoms dominate service calls: the forks slowly settle under load (cylinder drift), and the carriage rises unevenly or with a shudder (worn rollers or dry slides). Drift is almost always a tired lift-cylinder seal — the Lift Cylinder Seal Kit HRH26A8402GXLB reseals the H2000/G CPCD30 (VM) cylinder and restores hold. A juddering mast usually means pitted load rollers or worn slides; the Mast Pulley Roller 20028-00250 (CPCD20-30) and the Mast Bushing D20B8-12031 (which spans the whole H2000/G CPCD10-100 range) bring smooth, quiet travel back. While you are in there, grease the mast channels and watch for uneven chain stretch. See more in mast parts.
Steering: when the wheel has play or the truck wanders
Rear-wheel steering on a counterbalance truck lives a hard life of full-lock turns on rough floors, so wear shows up as free play at the wheel, a clunk over bumps, or the truck pulling to one side. The usual culprits are the king pins and link pins in the steer axle. The Knuckle King Pin Kit H24C4-32182 (H2000 CPCD20-35) rebuilds the knuckle pivot, while the Steering Link Pin Collar A73J4-32022 (G-Series CPD30-35) takes up slack in the linkage. If the play is higher up — a notchy or loose steering wheel — the Steering Shaft Column H24C4-10301 is the fix. Addressing steering wear early is a safety issue as much as a comfort one. Browse steering parts.
Hydraulics, transmission and drive: power to lift and move
Slow or weak lifting that is not caused by the cylinders usually points at the control valve or pump. The 3-Spool Hydraulic Control Valve A20A7-30431 is the common replacement on H2000/G CPCD2035 trucks when a spool sticks or relief pressure drops. On the driveline, a torque-converter transmission that slips, shifts harshly or will not hold on a ramp is often past due for an overhaul; the complete Transmission Assembly H25S3-80301 (H2000/G-Series CPCD20-35) is the fastest way to get a down truck back to work, and the Differential Side Gear H24C3-52001 covers a noisy or chipped diff. Keep transmission and hydraulic oil clean and at level and these units last for years. See hydraulic parts, transmission parts and drive parts.
Electrical and cab: the small parts that cause big headaches
Nuisance faults — a truck that will not start, a dead work light, a fuel smell — are usually cheap to fix once you find them. A blown Front Combination Lamp Z8610-12000 (CPC10-35) is a quick safety restore, and intermittent electrical gremlins on H2000/G trucks often trace back to the Control Box D03HYCKJ012-HY. Do not overlook the basics: a perished Fuel Cap 23452-22201 (G-Series CPCD20-35) lets in dirt and water, and a stretched or frayed Accelerator Cable H25T5-60502 makes throttle response vague and hard to modulate. Browse electrical parts and chassis parts.
How to identify your G-Series and order the right part the first time
The single biggest cause of wrong parts is guessing the model. Find the data plate (usually on the dash cowl or the frame near the operator's seat) and note the full model code and serial number. The model tells you capacity and series (CPCD30 = 3.0 t diesel); the serial narrows the build year, which matters because Heli revised several assemblies mid-production. Then identify the engine from the tag on the block — Xinchai, C240 or 4TNE98 — because air, cooling and fuel parts are chosen by engine, not by capacity. With the model, serial and engine in hand, the quickest route is to search by the OEM number printed on the part you are replacing. If you only have the model, search that plus the component and check the application list before buying. When in doubt, send us the plate details and we will look it up.
A simple maintenance rhythm that prevents most failures
Nearly everything above is preventable with a light routine: check engine oil, coolant and hydraulic level daily; blow out or replace the air cleaner and inspect the fan and belts at each service; grease the mast channels, chains and steer-axle pins on a regular schedule; and keep an eye on fluid cleanliness. Catching a weeping seal or a frayed cable early turns a roadside breakdown into a five-minute job.
Frequently Asked Questions
Are Heli G-Series and H2000 parts interchangeable?
Very often, yes — most mast, steering, hydraulic and driveline parts are listed for both (you will see “H2000 / G Series” in the fitment). Engine, cab and some body parts changed between the lines, so confirm the application list for your serial number.
What do the CPCD codes mean?
CPCD is a diesel torque-converter counterbalance truck; the number is the capacity in 100 kg (CPCD30 = 3,000 kg). CPQD/CPQ is LPG/gasoline and CPD is electric. Include the full code when ordering because fuel and drivetrain parts differ.
How do I know which engine I have?
Look for a cast or stamped tag on the engine block: Xinchai (490/495/498), Isuzu C240 or Yanmar 4TNE98 are the common options. The engine determines your filters, water pump, hoses and tune-up parts.
Can I fit larger-capacity parts to my CPCD30?
Some shared components (like the mast bushing that spans CPCD10-100) fit across the range, but many are capacity-specific. Match the number, not just the family.
Can't find the right part? Send us a part request with your model, serial and engine, and we will help you look it up.
