Denza Z9 Parts
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Symptom Finder: Known Weak Points
| What you see or hear | Check first |
|---|---|
| Car feels unsettled or turns unevenly at low speed | The steering motor at each rear corner and its linkage. Check both sides, then order the part for the side at fault by OE number. |
| Car sits low at one corner after standing | On Max and Ultra cars, the air spring or its line at that corner. Pro cars have no air springs, so check the spring and damper instead. |
| Brake squeal, judder or uneven pedal feel | Pads and discs. Check whether the car has carbon-ceramic or conventional discs first, since the pads and caliper must suit the disc fitted. |
| Engine warning light on the plug-in hybrid | Start with the lambda and emission sensors on the 2.0-litre engine, the usual first suspects on any petrol engine, and order by OE number. |
| Tyre pressure warning after a wheel or tyre change | The TPMS sensor and valve on the affected wheel. Confirm the wheel size first, since the car may run 20-inch or 21-inch wheels. |
| Driver-assistance warning after a light front-end knock on a 2026 Z9GT | The lidar unit, bumper sensors and their brackets. A bent bracket can trigger the warning on its own, so check it before replacing a sensor. |
| Coolant warning or a falling coolant level | Coolant hoses, the expansion tank and temperature sensors. The car cools a battery and three motors, so trace the leak to its circuit before ordering. |
Most Replaced Parts on the Denza Z9
- Control arms and bushingsA heavy car of up to 2,895 kg, with steering hardware at each rear corner
- Powertrain and drive-unit mountsThree motors on tri-motor cars, plus a 2.0-litre engine on the hybrid
- Wheel bearings and knucklesEach rear corner carries its own steering motor, so order by side
- TPMS sensors and valvesSquare 20-inch and staggered 21-inch fitments, so check the tyre size first
- Locks, latches and closure hardwarePowered doors on Ultra cars and new hidden door handles on the 2026 Z9GT
About Denza Z9 Parts
The Denza Z9 name covers two large cars built on one platform: the Z9GT shooting brake, launched in China on 20 September 2024, and the Z9 saloon, launched on 15 November 2024. They share a 3,125 mm wheelbase and a 1,990 mm width, and each comes as a battery-electric car or as a plug-in hybrid with a 2.0-litre turbo petrol engine. The launch cars drive through three motors, one at the front and one for each rear wheel, and each rear wheel also steers on its own by up to 10 degrees either way. For parts, that means drive and steering hardware at each rear corner rather than a shared rear axle, and the hybrid adds the oil, filters and sensors of a petrol engine. Every part here is listed by its OE number, and matching the number on the old part is the surest fitment check.
What to know before buying Denza Z9 parts
Start by confirming the body. The Z9GT is a five-door shooting brake with a large tailgate, and the Z9 is a four-door saloon. They share the 3,125 mm wheelbase and the 1,990 mm width, but the saloon's length depends on the powertrain. The plug-in hybrid saloon is 5,235 mm long, but the battery-electric saloon is 5,180 mm, the same as the electric Z9GT. The saloon is 1,500 to 1,518 mm tall. Confirm the body and the powertrain before ordering bumpers or rear panels. Bumpers, rear panels, the tailgate or boot lid, rear glass and most of the rear trim are therefore specific to each body.
Next, check the powertrain. The battery-electric and plug-in hybrid cars use different motors. On launch cars the electric version has a 230 kW front motor and two 240 kW rear motors, and the hybrid has a 200 kW front motor and two 220 kW rear motors. Drive motors and their mounts do not cross between the two, and only the hybrid needs engine oil, filters, lambda sensors and exhaust parts. Order rear motors, steering motors, knuckles and hubs by side, since each rear corner carries its own hardware.
Then check the trim. On the launch cars the Pro trim goes without air suspension, while Max and Ultra cars use the DiSus-A dual-chamber air system. A Pro takes conventional springs and dampers and a Max or Ultra takes air springs, so look at a rear corner before ordering. Ultra cars also have powered doors, with door motors the other trims lack. Wheels vary too. Cars run either a square 255/45 R20 set or a staggered set of 255/40 R21 front and 275/40 R21 rear, so read the size on each tyre sidewall before ordering tyres, rims or TPMS sensors.
Finally, read the build date on the identification plate. The 2026 Z9GT, launched on 5 March 2026, changed the front fascia, taillights, door handles, wheels and lidar. It moved the electric car to a 122.5 kWh second-generation Blade battery and added a single-motor rear-drive version and a Performance version with carbon-ceramic discs and six-piston calipers. Front-end, lighting, battery, brake and motor parts can differ either side of that update. Z9GT cars sold outside China are this 2026 car. The Z9S, launched on 23 September 2026 on a shorter 3,025 mm wheelbase, is a different car and is not covered here.
Before You Order: 7 Checks
- Confirm the body and the powertrain before ordering panels, glass or rear trim. The Z9GT has a tailgate, the electric Z9GT and the electric Z9 saloon are both 5,180 mm long, and the hybrid saloon is 5,235 mm. All share a 3,125 mm wheelbase.
- Match the OE number on the part you are replacing to the OE number on the listing, and order only when the two agree.
- Check whether the car is the electric or the hybrid version before ordering motors, mounts or engine parts, since the motors differ between them.
- Look at the rear suspension before ordering a strut or spring, since Pro cars use conventional springs and Max and Ultra cars use air springs.
- Read the size on each tyre sidewall before ordering tyres, rims or TPMS sensors, since cars run square 255/45 R20 or staggered 21-inch sets.
- Read the build date on the identification plate before ordering front-end, lighting, battery or brake parts for a Z9GT, since the 2026 car changed all four.
- Order rear knuckles, hubs and steering motors by side, and check the OE number for the left and right parts separately.
Generations and Facelifts
The Z9 line began with the Z9GT, shown at the Beijing motor show in April 2024 and launched in China on 20 September 2024 as the first model after BYD took full ownership of Denza. It was sold as a plug-in hybrid in Pro, Max and Ultra trims and as a battery-electric car with a 100 kWh battery. Both used three motors and independent rear-wheel steering from BYD's e3 technology. The Z9 saloon followed on 15 November 2024 with the same wheelbase, width and drivetrains and a 38.5 kWh battery in the hybrid. The two were sold alongside each other, so both bodies with both powertrains are on the road.
The Z9GT was updated on 5 March 2026, and for parts this works as a facelift. The front fascia, taillights, wheel designs and door handles changed, a new lidar unit was added, and the cabin gained a new steering wheel and column shifter. The electric car moved to a 122.5 kWh second-generation Blade battery with much faster charging. A single-motor rear-drive version joined the range, and the top tri-motor version gained 310 kW rear motors, carbon-ceramic discs and six-piston calipers. A further tri-motor version with four-piston front calipers and 255/45 R20 tyres was added in September 2026. Outside China, the 2026 Z9GT is also sold in some export markets.
The 2026 update was launched on the Z9GT. In September 2026 Denza launched the Z9S, a smaller saloon on a 3,025 mm wheelbase, and the original Z9 saloon no longer appears on Denza's website. Before ordering body, lighting, battery or brake parts for a Z9GT, read the build date on the identification plate.
Denza Z9 Parts: Frequently Asked Questions
How do I make sure a part fits my Denza Z9?
Match the OE number. Every part on this site is listed under the OE number printed on the original part, and if the number on the part you are replacing matches the listing, the part fits. That check matters on the Z9 because the name covers two bodies, two powertrains, several trims and a 2026 update, and many parts change between them. If the old part is missing or its number cannot be read, send a photo of it through the quote form and we will reply within 24 hours, usually sooner.
Do Z9GT and Z9 saloon parts interchange?
Some do and many do not. The two cars share a 3,125 mm wheelbase, a 1,990 mm width and the same launch drivetrains, but the Z9GT is a shooting brake and the saloon's length depends on the powertrain. The hybrid saloon is 5,235 mm long, while the electric saloon is 5,180 mm, the same as the electric Z9GT. Bumpers, rear panels, the tailgate or boot lid, rear glass and rear trim follow the body, so treat them as specific to each car. Mechanical parts may be shared, but only a matching OE number proves it, so check the number before ordering.
Are the motors the same on the electric and hybrid versions?
No. On the launch cars the electric version uses a 230 kW front motor and two 240 kW rear motors, while the hybrid uses a 200 kW front motor and two 220 kW rear motors alongside its 2.0-litre turbo engine. The 2026 Z9GT added further versions, including a single 370 kW rear motor and a tri-motor set with 310 kW rear motors. A motor from one version will not suit another, so confirm the powertrain and the corner first, then order by OE number.
Does every Z9 have air suspension?
No. On the launch cars the Pro trim goes without air suspension, while Max and Ultra cars use the DiSus-A dual-chamber air system. A Pro therefore takes conventional springs and dampers, and a Max or Ultra takes air springs along with the compressor and valve parts that serve them. The badging may not tell you the trim, so look at the suspension at a rear corner before ordering anything for it. Then match the spring or damper by the OE number on the old unit.
What tyre sizes does the Z9 use, and can I rotate them?
Two fitments are listed. One is a square set of 255/45 R20 on all four wheels. The other is staggered, with 255/40 R21 at the front and 275/40 R21 at the rear, and on that fitment the tyres cannot be swapped front to rear. Wheel size varies by version and year, so read the size printed on each sidewall before ordering tyres, rims or TPMS sensors. Where a car runs the staggered set, order the front and rear tyres as separate sizes.
Is there a rear steering rack to replace?
No shared rack is used. On the tri-motor cars each rear wheel has its own steering motor, and the two rear wheels turn independently by up to 10 degrees either way, which gives the car a 4.62 metre turning radius. Steering hardware is therefore ordered corner by corner, and the left and right parts should be checked separately. Find which side has the fault, then order the steering motor, knuckle or hub for that side by the OE number on the old part.
Does the hybrid Z9 still need oil and filters?
Yes. The plug-in hybrid carries a 2.0-litre turbo petrol engine alongside its three electric motors, and that engine needs oil, an oil filter and an air filter like any other, plus lambda and emission sensors. The electric version has no engine, so none of those parts apply to it. Both versions still need brake fluid, coolant and cabin filters. Confirm which version you have before planning a service, then order the service parts by OE number.
What changed with the 2026 Z9GT?
The 2026 Z9GT was launched in China on 5 March 2026. It has a new front fascia, elongated taillights, new wheel designs, hidden door handles and a new lidar unit, with a new steering wheel and column shifter inside. The electric car moved to a 122.5 kWh second-generation Blade battery, and the new versions included a single-motor rear-drive car and a Performance car with carbon-ceramic brakes. Read the build date on the identification plate before ordering front-end, lighting, battery or brake parts, since these differ from the earlier car.
Does the Z9GT have carbon-ceramic brakes?
Only some cars do. On the 2026 Z9GT, the Performance version has carbon-ceramic discs with six-piston calipers, while the tri-motor version added in September 2026 uses four-piston front calipers. Other versions have their own brake sets, so the model name alone does not tell you what is fitted. Look at the disc and caliper on the car before ordering anything for the brakes. Then order the caliper to suit the disc and the pads to suit both, matching each by OE number.
Will parts from a 2026 Z9GT fit an earlier car?
Not always. The 2026 Z9GT, launched in China on 5 March 2026, changed the front fascia, taillights, door handles, wheels and lidar, and its electric version moved to a 122.5 kWh second-generation Blade battery. Many of its parts may therefore not match a car built before that update. Right-hand-drive cars also use mirrored parts wherever the steering side matters. Check the build date on the identification plate, then confirm each part by OE number.
Are Z9S parts the same as Z9 parts?
No. The Z9S is a newer and smaller saloon, launched on 23 September 2026. It sits on a 3,025 mm wheelbase against the Z9's 3,125 mm, and measures 5,090 mm long and 1,980 mm wide, so its body panels and glass do not match the Z9 and many chassis parts are likely to differ. It uses a 102.3 kWh second-generation Blade battery in single-motor or tri-motor form. This page covers the Z9 and Z9GT only, so for a Z9S, look for parts listed under that model and match the OE number.
What should I check before a front-end repair on a 2026 Z9GT?
The 2026 car has a new front fascia and a lidar unit for its driver-assistance system, so a front-end repair can involve more than the bumper panel. Check the lidar, any sensors in the bumper and their brackets as well as the panel itself, since a bent bracket can upset the system after a light knock. Front bumpers and lights from a car built before the March 2026 update were made for the earlier front end. Read the build date on the identification plate, then order each part by OE number.