The 2026 BMW Z4 has 12 automatic transmission parts with verified fitment on this page — 4 part types and 6 brands, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2026 BMW Z4, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts. 11 parts of the 12 listed are Transmission Fluid (9 parts), Filter (1 part) and Fluid Pan (1 part). The other 1 part type covers the remaining 1 part.
The 2026 BMW Z4 was sold with both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
6 brands supply automatic transmission parts for the 2026 BMW Z4, led by VALVOLINE (4 parts), LIQUI MOLY (3 parts) and PENTOSIN (2 parts), plus 3 more brands. Quality grades include Multi-Vehicle and ZF Fluid.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 BMW Z4. 2 parts have it, including VALVOLINE VV3246 (Transmission Fluid) and VALVOLINE 773775 (Transmission Fluid). Each part number opens a page with every vehicle that part fits.
Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 3.0L L6 Turbocharged | 0440409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the replacement filters for this application — the table heading and notes say which circuit. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
One part is listed for the 2026 BMW Z4 — BECK/ARNLEY 0440409.
Fluid Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HENGST Fits: 3.0L L6 Turbocharged | HG115HD846 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | M40i Model | View on Amazon |
This table covers the pans that hold automatic-transmission fluid.
This group shows a single part: HENGST HG115HD846.
Fluid Pan Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 3.0L L6 Turbocharged | HWB1068 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Fluid Pan bolts.
One part is listed for the 2026 BMW Z4 — REIN HWB1068.
Transmission Fluid
Multi-Vehicle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 3.0L L6 Turbocharged | VV3246 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 3.0L L6 Turbocharged | 773775 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon | View on Amazon |
| LIQUI MOLY Fits: 3.0L L6 Turbocharged | 20032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec ATF 18001 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L L6 Turbocharged | 22036 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top Tec ATF 18005 Liter | View on Amazon |
| LIQUI MOLY Fits: 3.0L L6 Turbocharged | 20034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Top TEC ATF 180020 Liter | View on Amazon |
| VALVOLINE Fits: 3.0L L6 Turbocharged | 881051 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box | View on Amazon |
ZF Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PENTOSIN Fits: 3.0L L6 Turbocharged | 1058110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 LiterATF8 | View on Amazon |
| PENTOSIN Fits: 3.0L L6 Turbocharged | 1058210 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 5 LitersATF8 | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: 3.0L L6 Turbocharged | 899179 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic ATF1 Quart | View on Amazon |
This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid.
9 Transmission Fluid parts are listed for the 2026 BMW Z4, from VALVOLINE, LIQUI MOLY and PENTOSIN. VALVOLINE VV3246 carries the "Popular" badge.
In the Multi-Vehicle grade, VALVOLINE and LIQUI MOLY supply 6 parts: grouped under the catalog's "Multi-Vehicle" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV3246.
In the ZF Fluid grade, PENTOSIN supplies 2 parts: grouped under the catalog's "ZF Fluid" designation — the notes column spells out what sets them apart. A representative part number is PENTOSIN 1058110.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Part numbers include VALVOLINE VV3246, VALVOLINE 773775 and LIQUI MOLY 20032, among others listed above.
Buying Automatic Transmission Parts for a 2026 BMW Z4
On this vehicle, the automatic transmission covers the automatic gearbox and its supporting cast — filters, coolers, solenoids, mounts and torque-converter parts.
- Match the engine first. Every automatic transmission part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Transmission Fluid and Filter .
Frequently Asked Questions
How many automatic transmission parts fit the 2026 BMW Z4?
Our catalog currently lists 12 automatic transmission parts for the 2026 BMW Z4 across 4 subcategories and 6 brands, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Each part is matched to the engine(s) it fits.
Do automatic transmission parts differ between 2026 BMW Z4 engines?
Yes. Every automatic transmission part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of automatic transmission problems on a 2026 BMW Z4?
Common symptoms include delayed or harsh engagement, slipping under load, fluid that smells burnt, or shuddering at light throttle around 40 mph. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the filter and pan gasket with every fluid service, and flush the cooler lines when replacing a failed unit.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 BMW Z4 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2026 BMW Z4?
First match the engine — each row shows which engine(s) the part fits. Then use exactly the fluid specification in the notes — automatic transmissions are the least forgiving component on the vehicle about fluid choice. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 BMW Z4
Automatic Transmission Parts for Other BMW Z4 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.