PMC Motorsport aluminum gearbox adapter plate Honda K K20 K24 – BMW ZF-5 / GS5-39DZ / S5D-280Z / Getrag 420G / GS6-37BZ / GS6-37DZ / GS6-53DZ / GS6-53BZ / DCT DKG GS7D36SG / ZF 8HP 8HP70 8HP75 8HP50 8HP51
Aluminum adapter plate enabling the connection (swap / conversion) of the Honda K K20 K24 engine with a manual or automatic ZF (ZF Friedrichshafen) / Getrag gearbox from BMW. The adapter supports highly popular manual gearboxes such as ZF-5, GS5-39DZ, GS6-53DZ / BZ, Getrag 420G, as well as modern automatic gearboxes ZF 8HP and dual-clutch Getrag DCT DKG. It is the most versatile adapter available on the market.
Are you planning an engine swap of the Honda K20 / K24 engine into your BMW (E30, E36, E46, E34, E39, E90, E91, E92, E60, E61, E81, E82, E87)? Or maybe you are building a project with a Honda K engine in a rear-wheel drive setup (e.g. Nissan Silvia S13 / S14, Mazda MX-5, Toyota AE86 or kit car) and looking for a durable gearbox, e.g. manual ZF-5, GS6-53 or automatic ZF 8HP? In both cases, our adapter is a reliable solution. Gain a durable BMW gearbox with 5, 6, 7, or 8 speeds and easy access to spare parts.
The aluminum gearbox adapter plate was designed to simplify gearbox installation as much as possible, avoiding radical steps like cutting off the entire bellhousing – only the starter motor clearance needs to be prepared. The adapter requires a custom PMC Motorsport flywheel matched to the chosen gearbox (sold separately).
PMC Motorsport gearbox adapters are synonymous with precision and top quality. A design process based on 3D scanning and inspection using a measuring arm ensure a perfect fit. Production on modern CNC machines guarantees ideal engine-gearbox concentricity, which is crucial for powertrain durability.
Our entire production and R&D department are located in Poland. Over 90% of components are manufactured in-house.
Help with selection and after-sales support – PMC Motorsport Support
The PMC Motorsport team will help you choose the right kit and provide technical support in case of any doubts during installation. You can contact us via the contact form.
Purchase of individual components
Every element of the kit can be purchased separately.
Thousands of produced adapters and satisfied customers all over the world.
PMC Motorsport adapters are used in both daily drivers and professional motorsport projects.
From the beginning, we focus on the quality of the parts we manufacture. After each production stage, the component is inspected. Every part produced by us is engraved with a production serial number.
We confirm quality with the PN-EN ISO 9001:2015 certificate.
We ship our products to virtually all countries worldwide. For European Union countries (excluding islands) and the United Kingdom, shipping costs are calculated automatically. For countries outside the list, after placing an order, our team will prepare a shipping calculation and add it to your order. You will receive an email with the total order cost.
NOTE: The provided shipping quote together with the product price does not include additional fees / customs duties that may occur depending on the destination country.
0% VAT
0% VAT for customers holding an active EU VAT number (B2B option outside Poland) and in the case of exports outside the EU.
After positive verification in the VIES system, we modify the order by removing the charged VAT.
Why choose a BMW gearbox?
Availability and price. Millions of cars produced worldwide guarantee easy access to spare parts. Both parts and complete gearboxes are readily available at official dealerships and on the secondary market.
Strength and reliability. BMW ZF / Getrag gearboxes have been successfully used in both amateur and professional motorsport for many years. They can withstand very high torque (some models 1000 Nm+), while guaranteeing high reliability. They are ideal for swaps in high-power projects intended for daily use.
Speed and convenience. When using new-generation automatic gearboxes like ZF 8HP or Getrag DCT DKG, you get lightning-fast gear changes (approx. 0.2 s).
| Matching engines: |
Honda K
Honda K20 K20A K20A1 K20A2 K20A3 K20A4 K20A6 K20Z1 K20Z2 K20Z3 K20Z4
Honda K24 K24A1 K24A2 K24A3 K24A4 K24A8 K24Z1 K24Z2 K24Z3 K24Z4 K24Z5 K24Z6 K24Z7
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| Matching manual gearboxes – petrol: |
GETRAG S5D-250G (S5D250) 5-speed
BMW M50 M52
ZF ZF-5 S5D-310 (ZF 310 / S5-31) 5-speed
BMW M50
ZF ZF-5 S5D-320 (ZF 320 / S5-32) 5-speed
BMW M50 M52 S50 S52 S54
GETRAG 420G 6-speed (inline engines only)
Getrag 420G TBAB – BMW E36 M3 S50
Getrag 420G TAGU – BMW E36 M3 S50
Getrag 420G TBAI – BMW E46 M3 S54
ZF S6-37 GS6-37BZ 6-speed
ZF GS6-37BZ THEG – BMW M54
ZF GS6-37BZ JEP (TJEP) – BMW N52 N52N N53
ZF GS6-37BZ JEM (TJEM) – BMW N52 N52N N53
ZF S6X37 GS6X37BZ – BMW M54 N52 N53
ZF S6-17 GS6-17BZ 6-speed
ZF GS6-17BZ APX (TAPX) – BMW N52 N52N N53
ZF S6-53 GS6-53BZ 6-speed
ZF GS6-53BZ HGX (THGX) – BMW E60 535i E9x 335i N54
ZF GS6-53BZ JGD (TJGD) – BMW E60 535i E9x 335i N54
ZF GS6-53BZ JGF (TJGF) – BMW E60 535i E9x 335i N54
ZF GS6-53BZ JGK (TJGK) – BMW E8x 135i Z4 35i N54
ZF S6X53 GS6X53BZ HGY (THGY) – BMW E60 535i E9x 335i N54
ZF S6-45 GS6-45BZ 6-speed
ZF GS6-45BZ HD4 (THD4) – BMW E8x 135i E9x 335i F10 335i N55
ZF GS6-45BZ HAP (THAP) – BMW B58 F30 340i F32 440i
ZF S6X45 GS6X45BZ – BMW E60 535i E9x 335i N55
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| Matching manual gearboxes – diesel: |
ZF S5D-280 5-speed
ZF S5D-280Z – BMW E39 520d E46 320d M47
ZF S5-39 GS5-39DZ 5-speed
ZF GS5-39DZ THBA THBM THBG THBK THBC – BMW E39 530d 525d E46 330d M57 M57D306D1
ZF S6-37 GS6-37DZ 6-speed
ZF GS6-37DZ – BMW M47N M47N2
ZF GS6X37DZ – BMW M47N M47N2
ZF S6-53 GS6-53DZ 6-speed
ZF GS6-53DZ HGA (THGA) – BMW E46 330d M57N M57D306D2
ZF GS6-53DZ HGD (THGD) – BMW E60 530d M57N M57N2
ZF GS6-53DZ JGA (TJGA) – BMW E60 530d M57N M57N2
ZF GS6-53DZ HGU (THGU) – BMW E9x 325d 330d M57N2
ZF GS6-53DZ HGK (THGK) – BMW E9x 325d 330d M57N2
ZF GS6-53DZ JGL (TJGL) – BMW E9x 330d N57N
ZF GS6-53DZ HS1 (THS1) – BMW F10 530d N57N
ZF GS6-53DZ HB7 (THB7) – BMW F10 530d N57N
ZF GS6-53DZ HAF (THAF) – BMW F10 530d N57N
ZF GS6-53DZ JGG (TJGG) – BMW E8x 123d N47S
ZF S6X53 GS6X53DZ HGB (THGB) – BMW E46 330d M57N M57D306D2
ZF S6X53 GS6X53DZ HGE (THGE) – BMW E60 530d M57N M57N2
ZF S6X53 GS6X53DZ JGB (TJGB) – BMW E60 530d M57N M57N2
ZF S6X53 GS6X53DZ HGW (THGW) – BMW E9x 330d M57N2
ZF S6X53 GS6X53DZ HGL (THGL) – BMW E9x 330d M57N2
ZF S6X53 GS6X53DZ JGJ (TJGJ) – BMW E9x 330d N57N
ZF S6-45 GS6-45DZ 6-speed
ZF GS6-45DZ – BMW N47 N47S1 N47N N57
ZF GS6X45DZ – BMW N47 N47S1 N47N N57
|
| Matching automatic gearboxes: |
ZF 6HP26 6-speed
ZF GA6HP26 – BMW M57N M57N2 (diesel)
ZF 6HP26X 6-speed (xDrive)
ZF GA6HP26X – BMW M57N M57N2 (diesel)
ZF 6HP28X 6-speed (xDrive)
ZF GA6HP28X – BMW M57N2 (diesel)
ZF 8HP70 8-speed
ZF GA8HP70 – BMW N57 N57N (diesel)
ZF 8HP75 8-speed
ZF GA8HP75Z / 8HP75 – BMW B57 B57B30 (diesel)
ZF 8HP45 8-speed
ZF GA8HP45Z / 8HP45 – BMW N47 N47S1 N47N (diesel)
ZF 8HP50 / 8HP51 8-speed
ZF GA8HP51Z / 8HP51 – BMW B58 B58B30
ZF GA8HP51Z / 8HP51 – BMW B48 B48B20
ZF GA8HP51Z / 8HP51 – BMW B46 B46B20
ZF 8HP70X 8-speed (xDrive)
ZF GA8HP70X – BMW N57 N57N (diesel)
ZF 8HP75X 8-speed (xDrive)
ZF GA8HP75X – BMW N57 N57N (diesel)
Dual-clutch Getrag DCT DKG
Getrag DKG DCT GS7D36SG 7-speed – BMW N54 N55 S55
|
Additional information
PMC Motorsport parts are intended for motorsport and race track use.
Installation should be carried out by professionals with knowledge in engine swaps and car modifications – in workshops and using properly adapted tools.
The adapter installation manual contains only basic knowledge necessary to physically connect the engine with the gearbox outside the car body.
Depending on your specific car, additional modifications may be required, such as adjusting mounts, engine/gearbox mounts, firewall, transmission tunnel, driveshaft length, etc.
We manufacture our adapters using fully recyclable materials.
Installation instructions
The gearbox adapter requires a custom PMC Motorsport flywheel matched to the chosen gearbox (not included in the kit).
For ZF-5 (ZF 310 / ZF 320) and Getrag 250G / 420G gearboxes, a slight enlargement (grinding) of the two upper mounting holes in the gearbox housing (bellhousing) is required – this modification does not affect the centering of the engine and gearbox.
Gearboxes for petrol engines (ZF-5 and Getrag 250G / 420G) and diesel engines (M57 GS5-39DZ) share the same bolt pattern, but differ in mounting angle on the adapter. If after tightening the gearbox is set at the wrong angle, the installation must be corrected – the petrol gearbox was bolted into the diesel gearbox position or vice versa.
Frequently Asked Questions
Which engines does this adapter fit?
For Honda K20 (K20A, K20A1, K20A2, K20A3, K20A4, K20A6, K20Z1, K20Z2, K20Z3, K20Z4) and K24 (K24A1, K24A2, K24A3, K24A4, K24A8, K24Z1, K24Z2, K24Z3, K24Z4, K24Z5, K24Z6, K24Z7) engines.
Which gearboxes fit the adapter?
The adapter is universal and fits virtually all BMW gearboxes: manual petrol (ZF-5 ZF 310 / ZF 320, Getrag 250G, Getrag 420G, GS6-37BZ, GS6-17BZ, GS6-53BZ, GS6-45BZ), manual diesel (ZF S5D-280, GS5-39DZ, GS6-37DZ, GS6-53DZ, GS6-45DZ), automatic ZF 6HP and ZF 8HP, and dual-clutch Getrag DCT DKG GS7D36SG. The complete list of versions can be found in the table above.
Is a flywheel included in the kit?
No. The adapter requires a custom PMC Motorsport flywheel selected for your chosen gearbox. The flywheel (or torque converter adapter for the ZF 8HP transmission) is available separately.
Do I need to cut the gearbox bellhousing?
No. The adapter was designed to avoid cutting the bellhousing – you only need to prepare the clearance hole for the starter motor.
Does the ZF-5 / Getrag gearbox fit all adapter holes?
The PMC Motorsport adapter is the most universal adapter available on the market, supporting virtually every BMW gearbox. In designing it, we made certain compromises – on Getrag 250 / Getrag 420 / ZF 310 / ZF 320 / ZF-5 gearboxes, the two upper holes must be slightly ground in the gearbox housing (bellhousing). This modification does not affect the centering of the engine and gearbox.
The gearbox is at the wrong angle after tightening – what to do?
Petrol gearboxes (ZF-5 and Getrag 250G / 420G) and diesel gearboxes (M57 GS5-39DZ) share the same bolt pattern, but differ in mounting angle on the adapter. If the gearbox is at the wrong angle, it was bolted into holes intended for the other type – the installation needs to be corrected.
Which starter motor should be used?
Honda K20 / K24 OE starter motor. The starter motor is not included in the kit.
Does the adapter also fit the ZF 8HP automatic transmission?
Yes. The PMC Motorsport gearbox adapter is universal and fits most BMW gearboxes (applies to adapters produced after 2022). When converting to a ZF 8HP automatic transmission, a PMC Motorsport 8HP torque converter adapter is used instead of a flywheel.
Does the price include customs duty for shipments outside the European Union?
No. The product price and shipping estimate do not include customs duties or additional fees that may apply in the recipient's country.
Can I buy with 0% VAT?
Yes, if you are a B2B customer outside Poland with an active EU VAT number (verification in the VIES system) or ordering with shipping outside the EU.
Are the included instructions sufficient for installation?
The instructions describe connecting the engine to the gearbox outside the car body. Depending on the vehicle, additional modifications may be required: mounts, bushings, firewall, gearbox tunnel, driveshaft length. We recommend installation by professionals.
