Boîtes ZF 8HP

Q: Where can I compare 8HP gearboxes for sale?

Use the 8HP.Shop ZF 8HP gearboxes Australia page to compare listed units by mileage and price, then confirm fitment before ordering.

Looking for the right ZF 8HP transmission? The 8HP is ZF's eight-speed automatic family, and it has become one of the most popular modern gearbox swaps for Australian builds because it shifts fast, handles serious torque and runs fully electronically. But “8HP” is a family, not a single gearbox: 8HP45, 8HP50, 8HP51, 8HP55, 8HP70, 8HP75, 8HP76, 8HP90 and 8HP95 differ in torque class, bellhousing, output flange, AWD or RWD layout, mechatronics and controller support. This hub helps you work out which unit you have, how the variants differ, and what to confirm before you buy.

Which ZF 8HP variant do you have?

Start with the exact model rather than the badge alone. Each guide covers identification, fitment checks and the supporting parts for that variant:

8HP45 – the entry torque class of the family; see the 8HP45 guide for identification and swap parts.
8HP50 – a close relative of the 8HP45; the 8HP50 guide covers the differences and fitment.
8HP51 – a newer-generation lightweight option; the 8HP51 guide covers identification and limits.
8HP55 – sits between the lighter and mid-range classes; see the 8HP55 guide.
8HP70 – a common mid-range swap choice; the 8HP70 guide covers identification and supporting parts.
8HP75 – a higher torque class within the family; see the 8HP75 guide for fitment and swap parts.
8HP76 – a popular modern high-torque option; the 8HP76 guide covers identification and build parts.
8HP90 – a high-torque member of the family; the 8HP90 guide covers identification and supporting parts.
8HP95 – the highest-numbered variant currently listed; see the 8HP95 guide.

How the 8HP variants differ

Two gearboxes can both be called “8HP” and still not interchange. When you compare units, work through these differences:

Torque class – the number in the name reflects its position in the ZF range; higher numbers are built for more torque.
Bellhousing and bolt pattern – the engine interface changes between variants and donor applications.
Output flange and driveline – output type and length differ, so the tailshaft and flange plan matters.
AWD or RWD – all-wheel-drive donors and rear-wheel-drive donors are not a straight swap.
Mechatronics and controller – the valve body, wiring and TCU strategy decide how the gearbox is controlled.
Shifter, cooling and service parts – these are chosen around the exact variant, not the family name.

What to confirm before you buy an 8HP

A listing title or exterior photo is not a fitment guarantee. Before you commit to a unit, confirm:

The complete transmission code from the identification tag – not just “8HP45” or “8HP70”.
AWD or RWD layout, and whether a transfer case or tailshaft plan is required.
That the mechatronics unit is present and matches the gearbox.
Your controller, harness and CAN strategy (factory TCU, standalone like CanTCU, TurboLamik, MaxxECU or a factory ECU).
The full conversion plan: adapter or bellhousing, flexplate, converter, cooling, shifter and driveline.

New to the process? Read how to identify your ZF 8HP transmission first.

Choosing the right 8HP for your build

The best gearbox depends on your engine, torque target, driveline, controller and how reliable you need the car to be – not simply the cheapest older unit. Compare the options in the which ZF 8HP transmission should you buy guide, then look at the currently listed units in the ZF 8HP gearboxes for sale in Australia page or browse the ZF 8HP gearboxes collection.

Supporting parts for a ZF 8HP swap

Once you have the gearbox sorted, match the parts around it:

Engine adapter kits – engine-to-8HP bellhousing, flexplate and converter solutions.
TCU controllers and harnesses – how the gearbox is controlled and wired.
Cooling and filtration – coolers, lines and service parts for heat control.
Shifters and controls – paddle, sequential and universal shifting options.
Internals, clutches and Dodson parts – upgrades for higher-torque builds.

For the full parts map, see the 8HP parts catalog and the 8HP swap guides.

ZF 8HP transmission frequently asked questions

Is every ZF 8HP the same gearbox?

No. The 8HP is a family of eight-speed automatics. The 8HP45, 8HP50, 8HP51, 8HP55, 8HP70, 8HP75, 8HP76, 8HP90 and 8HP95 differ in torque class, bellhousing, output, AWD or RWD layout, mechatronics and controller support, so they are not interchangeable without checking the details.

How do I know which 8HP I have?

Read the identification tag and stamped code on the transmission case, then cross-check the AWD or RWD layout and the mechatronics. The identification guide shows what to record before ordering parts.

Can I use an 8HP with a standalone controller?

Yes. Many swaps run a standalone transmission controller such as CanTCU, TurboLamik or MaxxECU to control the 8HP. The right choice depends on your engine ECU, CAN strategy and the exact gearbox variant.

What parts do I need for an 8HP swap?

At minimum: the gearbox, an engine adapter or bellhousing, a flexplate or drive plate and converter, a controller and harness, cooling, a shifter solution and a driveline plan. The 8HP swap guides and the parts catalog map these out.

Where can I compare 8HP gearboxes for sale?

See the ZF 8HP gearboxes Australia page to compare listed units by mileage and price, then confirm fitment with us before ordering.

Related 8HP.Shop links

Shop ZF 8HP gearboxes

Compare the listed 8HP45 and 8HP76 units by mileage and price, and confirm the gearbox, adapter, controller and driveline plan for your build.

Shop related parts Ask fitment question

Next step: compare the ZF 8HP gearboxes for sale in Australia to see current mileage and pricing on listed units.