PMC Motorsport - Gearbox adapter Nissan SR20 - Manual BMW ZF5 GS5-39DZ GS6-53DZ GS6-53BZ / 8HP / DCT

PMC Motorsport aluminum gearbox adapter plate Nissan SR20 SR20DE SR20DET – 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 Nissan SR20 (SR20DE / SR20DET, RWD version) 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 Nissan SR20 into your BMW (E30, E36, E46, E34, E39, E90, E91, E92, E60, E61, E81, E82, E87)? Or maybe you want to replace the factory gearbox – automatic or manual – in your Nissan with an SR20DE / SR20DET engine (e.g. Silvia S13 / S14 / S15, 180SX, 200SX) with a BMW gearbox, such as the 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.

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).

Additional information

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 longitudinal Nissan SR20 engines (RWD version): SR20DE and SR20DET.

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?

Nissan SR20 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.