Parts for the automatic gearboxes in Chery, Geely, Haval and Great Wall, Changan, MG and Roewe, BYD, Baojun, Lifan and other Chinese cars: CVTs, wet dual-clutch gearboxes and 6-speed automatics. TCUs, mechatronic units, valve bodies, solenoids, clutch packs, oil pumps and complete gearboxes, shipped worldwide from Guangzhou.
Which gearbox is in my car? Brand finder ↓
Repair notes: fluids, relearn, fault code guide ↓
GWM 6DCT451wet dual-clutch
Brand finder
The usual automatic gearboxes for each brand. One model can use different gearboxes by engine and year, so always confirm with the nameplate on the gearbox, the OE number on the old part or your VIN.
| Brand | Typical models | Gearboxes we cover |
|---|---|---|
| Chery · Omoda · Jetour | Tiggo 3 / 5 / 7 · Arrizo 5 / 7 · Omoda C5 · Jetour X70 | |
| Geely · Lynk & Co | Emgrand · Coolray · Atlas Pro · Okavango · GX7 · Boyue · Lynk & Co 01 / 02 / 03 | |
| Great Wall · Haval · WEY | Haval H6 · F7 · H7 · Jolion · Dargo · WEY VV5 / VV7 | |
| Changan | CS35 Plus · CS55 Plus · CS75 Plus · UNI-T · UNI-V · Eado Plus | |
| MG · Roewe | MG5 · MG ZS · MG HS · MG GS · MG6 · Roewe i5 / i6 / RX3 / RX5 | |
| BYD | F3 · G3 · G5 · G6 · L3 | |
| Baojun · Wuling | 510 · 530 · 730 · RS-3 · RS-5 · RC-6 | |
| Lifan · DFSK | 320 · 330 · 620 · X60 | |
| Haima · Zotye · Dongfeng · JAC | — |
Gearbox guide
Short notes from repair work and market experience. Send us your fault codes and symptoms for a free check before ordering.
QR019CHA · 019CHB · CVT7
QR018CHA · 025CHA · CVT25
CVT180 · TS11
7DCT250 · 6DCT360
7DCT450 · GW7DCT1 · 6DCT451
DF727 · DCT270 · F01/F08-3621010
7DCT330
DSI M11 · DSI575F6 · QR640AHA
VT2 · VT3
CTF25 · CTF18
RDC15 · RDC18 · 6AT400F
6DT25 · F4A42
SR8AT · 8AT · A6F5 · RE0F21A
Catalog
Filter by gearbox family or search an OE number. Each part is checked against your OE number before you pay, and you get photos of the real item.
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NewNo match. Send us the OE number and we check stock.
Repair guide
Our technicians' notes on the Chinese gearboxes we supply: fluids and capacities, what usually fails, how to relearn after a repair, and how to read the fault codes. Figures are cross-checked with public manufacturer information; always confirm with the documents for your VIN.
Capacities are reference values. Fill to the level procedure, not to the number, and use the fluid named for the gearbox: CVT, DCT and AT fluids are not interchangeable.
| Gearbox | Type | Max torque | Fluid | Capacity | Change interval | Notes |
|---|---|---|---|---|---|---|
| Chery QR019CHA | CVT | 190 N·m | SK ATF SP-III | ≈ 8 L total | 30–40k km (specialist advice) | About 79 kg; three ratio variants (CHA / CHB / CHC) — match the code on the case |
| WLY CVT18 (QR018CHA) | CVT + torque converter | 180 N·m | CVTF WCF-1 | 7.2 ± 0.2 L | Per maintenance schedule | Ratio spread about 0.40–2.53, roughly 75 kg dry |
| WLY CVT25 (QR025CHA / CHC) | CVT + torque converter | 250 N·m | CVTF WCF-1 | ≈ 7.5 L total · ≈ 5.8 L drain | 40–50k km | ≈ 84.5 kg; electronic shift module; Tiggo 7/8, Arrizo 5, Omoda C5, Exeed LX |
| SAIC CVT180 (MG ZS 1.5 CVT) | CVT | — | Shell SL-2100 | Per workshop manual | Per maintenance schedule | Fluid named in the MG ZS owner manual; MG5, Roewe i5 / i6 / RX3 |
| GWM 7DCT450 (GW7DCT1) | 7-speed wet DCT | 450 N·m | Shell Spirax S5 DCT11 | 6.7 ± 0.3 L reference · ≈ 4.5–5 L drain | 50–60k km by engine (owner manual) | Replace the filter with the fluid; suppliers Continental, BorgWarner, Schaeffler |
| Changan DF727 (DCT270) | 7-speed wet DCT | 270 (300) N·m | Castrol BOT 351 C4 / Shell LVTF-100-5.5 spec | ≈ 4.8 L total · ≈ 3.0 L drain | 40,000 km / 4 years | ≈ 74 kg; BorgWarner wet clutch, Continental TCU; Changan specifies LVTF-100-5.5 type fluid |
| Geely 7DCT330 | 7-speed wet DCT | 330 N·m | Shell Spirax S5 DCT10 | ≈ 4.5 L total · ≈ 4.0 L drain | 90k km factory · 45k km recommended | ≈ 80 kg; Coolray, Atlas Pro, Okavango, Proton X50/X70 |
| Punch VT2 / VT3 | CVT, push belt | 182 N·m | ESSO EZL799(A) · Idemitsu CVTF-EX1 · Petronas Tutela CVT-PPT | ≈ 4.35 L service fill (BYD L3: 4.10 ± 0.05 L new) | 2 years / 60,000 km with filter | Clutch adaptation after TCU, software or valve body work; cones cannot be machined |
Symptoms and causes reported most often by repair shops. Check the cheap things first: fluid level and condition, software level, battery voltage and connectors.
| Gearbox | Symptom | Usual cause | Parts |
|---|---|---|---|
| Chery QR019CHA CVT | Hum or whine that rises with speed | Worn shaft bearings (often the front drive bearing) | Bearings, pulley set, oil pump |
| Chery QR019CHA CVT | Slipping, engine revs without pull, worse in winter | Clutch wear and low line pressure scoring the belt and cones | Solenoid kit, belt, pulleys, overhaul kit |
| WLY CVT18 / CVT25 | Jerks on light throttle, pressure codes | Worn oil pump bushing, debris in the valve body | Oil pump, valve body, filter kit |
| WLY CVT18 / CVT25 | Limp mode after heavy traffic in hot weather | Fluid overheating (P0218 above 128 °C) | Fluid change, cooler, auxiliary radiator |
| Great Wall / Haval 7DCT | Shudder on take-off, higher fuel use | Clutch pack wear, mostly in city traffic | Clutch drum / clutch pack, fluid and filter |
| Great Wall / Haval 7DCT | Gearbox hangs in gear, harsh shifts, jerks | Mechatronic or TCU fault; P-gear solenoid | Mechatronic unit, TCU, P-gear solenoid |
| Changan DF727 7DCT | Uneven shifts and jerks, early model years | Old software or missing adaptation | Reflash and adaptation; TCU if faulty |
| Changan DF727 7DCT | Delays, jerks and pressure codes from about 100k km | Wear debris blocking mechatronic solenoids | Mechatronic unit, clutch drum kit, seal kit |
| Geely 7DCT330 | Jerks and slipping on pull-away | Old fluid and stale adaptations; later clutch pack wear | Fluid + adaptation, clutch assembly |
| Geely 7DCT330 | Limp mode, logic errors | Shift control module / TCU, electric oil pump | TCU, electric oil pump |
| Punch VT2 / VT3 CVT | Slipping under normal acceleration | Belt worn 30–40 %, fluid contaminated | Pulley set / belt, filter kit, solenoids |
The two CVT families we see most behave differently after a repair. Wanliyang (WLY) units in Chery and Geely cars relearn by driving; Punch units need a short stationary adaptation with stable engine and fluid temperature.
| WLY CVT18 / CVT25 (Chery, Geely) | Punch VT2 / VT3 (Geely, BYD, Lifan, Haima) | |
|---|---|---|
| When | After a new TCU, valve body, torque converter, clutch pack or complete gearbox, and whenever the warning light flashes after clearing the learned values. | After TCU software, a new TCU, a new hydraulic unit (valve body) or a new gearbox. |
| How we do it | Clear the learned values with a scan tool and cycle the ignition. Then teach three things on the road: lock-up (repeated coast-downs from about 50 km/h without braking), forward clutch (several N→D engagements with a pause, then creeping off) and reverse clutch (the same with R). The light stops flashing when all three are done. | Engine fully warmed and idling steadily, fluid between 20 and 60 °C. Reset old adaptation values, then with the car standing on the brake select D and wait until the D adaptation ends (well under two minutes), then do the same in R. The warning light blinks slowly while it learns. |
| Fluid and level | WLY CVTF WCF-1 type fluid. Check hot (about 80 °C on the scan tool) through the overflow plug after cycling the selector; never top up by the number alone. | Use a CVT fluid approved by Punch (Esso, Idemitsu and Petronas make approved grades). Service fill is a little over 4 litres; check at about 60 °C at the level plug and change fluid and filter about every 60,000 km. |
| If it will not finish | Repeat the drive learning with the fluid cold, warm and hot for the smoothest shifts, and fix any stored codes first. | A light that keeps blinking almost always means the fluid was outside the temperature window or the idle was not steady. Let it cool or warm, check engine adaptation, and try again. |
Wet dual-clutch gearboxes store clutch touch points and shift fork positions in the TCU. After a fluid change, clutch, mechatronic or TCU replacement these values must be learned again, or the car jerks and slips. Workshop sequence:
Use the fluid named for the gearbox and fill to the level check; replace the filter when it is due.
Connect a battery charger. Low voltage is a common reason for failed learning.
Read and fix stored codes. Check for a newer TCU software; many shift-jerk complaints are fixed by a reflash.
Reset the adaptation values, then run the clutch touch-point and gear (shift fork) learning with the brand tool or a compatible scan tool, with the fluid at working temperature.
Road test with gentle shifts through all gears, including a few stop-and-go cycles, so the TCU can fine-tune the launch.
Menu names differ by scan tool; these are the common ones. Do them in the order shown.
Never test-fit a faulty TCU or mechatronic unit from another car without programming: wrong data can damage the clutch or shift forks.
Codes grouped by system, with what we check first and the part that usually fixes it. Most codes follow the standard OBD-II meaning; the exact text on your scan tool may differ by gearbox.
| Code | What it means | What we check first | Usual fix / part |
|---|---|---|---|
| P0960–P0971 | Line or pulley pressure solenoid circuit open or shorted | Coil resistance (≈ 5 Ω) and the harness to the TCU | Solenoid or valve body |
| P0900–P0903 · P2718–P2721 | Clutch pressure solenoid circuit fault | Coil, connector pins, harness chafing | Clutch solenoid / valve body |
| P2727–P2730 | Torque converter lock-up solenoid circuit fault | Coil and harness | Lock-up solenoid / valve body |
| P0928–P0931 | Shift-lock solenoid circuit fault | Brake light switch and selector harness | Selector / shift-lock unit |
| P0840–P0848 · P0641 | Pulley pressure sensor signal or supply fault | 5 V supply, fluid level, connector | Pressure sensor; valve body if pressure is really wrong |
| P0715–P0721 · P0791 · P0792 · P2765 · P2766 | Turbine, primary or secondary speed signal missing or implausible | Sensor tip for debris, air gap, harness | Speed sensor; check for belt slip if several codes appear |
| P0710 · P0937–P0940 | Fluid temperature sensor fault or implausible reading | Resistance cold vs. hot, connector | Temperature sensor / internal harness |
| P0705 · P0706 · P2802–P2805 | Range (gear position) sensor signal error | Sensor adjustment, cable, connector | Range sensor / inhibitor switch |
| P0730 · P0944 | Ratio error or not enough belt clamping force | Fluid level and condition, line pressure, metal in the pan | Belt and pulley set, oil pump, valve body |
| P0811 · P081E · P0894 | Clutch or lock-up clutch slipping | Fluid level, then relearn | Clutch pack, torque converter, overhaul kit |
| P2797 · P2798 · P1765 · P1766 | Pulley pressure too low, too high or not controlled | Filter, oil pump wear, valve body contamination | Oil pump, valve body, filter kit |
| P0218 · P1767 · P2787 | Fluid or clutch temperature too high | Cooler flow, fluid level, towing or heavy traffic use | Cooler / auxiliary radiator, fluid change |
| P081A · P1774 | Clutch adaptation not done or interrupted | Fluid temperature window, steady idle | Repeat the adaptation |
| P0882 · P0883 · U3006 | TCU supply voltage too low or too high | Battery, alternator, TCU ground | Charging system repair; TCU only if supply is good |
| P0601–P060C · P0613 · P0701 · P0702 | TCU internal fault (memory, processor, watchdog, driver) | Power and ground first; try a reflash | TCU (programmed to the car) |
| P1719 · P1720 · U0301 | TCU not matched to the car (immobiliser or configuration) | Was the TCU replaced or swapped? | Match / code the TCU with a scan tool |
| U0001 · U0073 · U0100 · U0121 · U0126–U0140 | Lost communication on the CAN bus | CAN wiring, terminating resistors, other modules' power | Wiring repair; rarely the TCU |
| U0401–U0428 · U1012–U1019 · P1750–P1762 | Invalid data from engine, ABS, steering or wheel speed signals | Codes in the sending module first | Repair the other system |
Written by HYL GLOBAL technicians from our repair and parts experience. Figures were cross-checked with publicly available manufacturer and owner information. Specifications change by model year — always confirm with the documents for your VIN. Brand and model names are used only to identify fitment.
Before you order
Chinese gearboxes carry a code such as QR019CHA, 025CHA, DF727A01, GW7DCT1 or 6DCT451 on a cast mark or a sticker on the housing. Send a clear photo.
TCUs, valve bodies and solenoids have their own numbers (for example 1501100077, 132000015AA or F01-3621010). The part number matters more than the car model.
With the 17-character VIN, engine and model year we can tell which gearbox version is fitted, including export versions sold under other names.
A new TCU or mechatronic unit usually needs programming and a clutch or shift learning with the brand diagnostic tool or a compatible scan tool. Tell us which tool you have.
FAQ
Yes. Most export models (Chery Tiggo and Omoda, Haval, Changan CS series, MG, Geely Coolray and Emgrand, Jetour, Baojun-based models) use the same gearboxes as in China. We ship to the Middle East, Russia and Central Asia, Latin America and Africa.
Send the gearbox code from the nameplate, the part number on the old part, or the VIN. For example a Haval H6 can have a 6-speed automatic, the 6DCT451 or the 7DCT450, and their parts do not interchange.
Only where the gearbox really is the same. Punch VT2/VT3 parts fit the Geely, BYD, Lifan and Haima cars that use that CVT. Chery QR019CHA, WLY CVT18/CVT25 and SAIC CVT180 have their own parts, even if some designs were inspired by Jatco. Match the part number.
Usually yes. After fitting a TCU or mechatronic unit, run programming and the clutch or shift learning with the brand diagnostic tool or a compatible scan tool. Tell us your tool and software level and we advise before you order.
One piece. Warranty depends on the part and condition (new, remanufactured or used) and is written on your quotation.
