Adapter Toyota 1UZ 3UZ - 6-speed manual BMW M57n GS6-53DZ HGU HGK - 184mm / 7.25" (P)

PMC Motorsport adapter plate / conversion kit / clutch kit Toyota Lexus V8 UZ 1UZ 3UZ – BMW M57N2 ZF GS6-53DZ HGU HGK 325d 330d 6-speed manual – 184 mm / 7.25" POT (Ultralight Race)

Adapter plate allowing the connection (swap / conversion) of the Toyota / Lexus V8 UZ 1UZ-FE 3UZ-FE engine with the ZF GS6-53DZ HGU / HGK 6-speed manual gearbox used in BMW with the M57N2 diesel engine (E90 / E91 / E92 / E93 325d and 330d). Kit with an Ultralight Race flywheel for 184 mm (7.25") POT-type multi-disc clutches – ideal for drifting as well as amateur and professional motorsport.

Planning a Toyota / Lexus V8 UZ 1UZ 3UZ swap into your BMW (E30, E36, E46, E34, E39, E90, E91, E92, E60, E61, E81, E82, E87)? Our adapter plate is a reliable solution. Replace the automatic transmission with a BMW manual gearbox and unlock new possibilities.

PMC Motorsport adapters not only enable automatic-to-manual conversions in cars powered by the Toyota / Lexus V8 UZ engine, but also support UZ swaps into BMW and other platforms such as Nissan or Mazda.

Aluminum gearbox adapter plate designed to simplify gearbox installation as much as possible, avoiding radical procedures such as cutting off the entire bellhousing – only preparing a cutout for the starter motor is required. Custom flywheels dedicated to PMC Motorsport adapter plates are made of aluminum with a replaceable friction surface, inspected and balanced prior to shipment. Ultralight Race flywheel designed for 184 mm (7.25") POT-type clutches – patterned after Tilton OT-II Cerametallic 7.25" pressure plates in twin-disc (66-312xxx) and triple-disc (66-013xxx) versions. Adapter plate thickness: 20 mm (0.78"). The small clutch diameter and low mass of the assembly provide instantaneous throttle response.

PMC Motorsport gearbox adapter plates are synonymous with precision and superior quality. The design process based on 3D scanning and inspection using a measuring arm ensure a perfect fit. Production on modern CNC machines guarantees ideal engine and transmission concentricity, which is crucial for powertrain durability.

Additional information

Installation manual

To install the flywheel, it is necessary to use the automatic transmission flexplate / ring gear Toyota / Lexus OE 32101-50010 and the 4.5 mm spacer washer between the engine block and flexplate, Toyota OE 32116-50010 (not included). Tighten the flywheel to the crankshaft using the supplied bolts to a torque of 72 Nm (53.1 lb⋅ft) using threadlocker. The release bearing and clutch fork remain from your gearbox – in the case of a dual-position bearing, use the 28.5 mm position. The gearbox guide tube (BMW OE 23 11 7 501 714) must be shortened – as shown in the diagram below. To mount the adapter plate, use the original Toyota UZ starter motor (OE, not included).

Frequently Asked Questions

Which engines does this adapter fit?

Toyota / Lexus V8 UZ family engines: 1UZ-FE (including Lexus LS 400, SC 400, GS 400, Toyota Celsior, Crown, Soarer, Aristo) and 3UZ-FE (including Lexus LS 430, GS 430, SC 430, Toyota Soarer, Crown Majesta).

Which gearboxes does the adapter fit?

The ZF GS6-53DZ 6-speed manual gearbox from BMW with the M57N2 diesel engine in HGU (THGU) and HGK (THGK) versions – E90 / E91 / E92 / E93 325d and 330d. The gearbox has a 32.5x35-26N spline.

Does the gearbox bellhousing need to be cut?

No. The adapter is designed to eliminate the need for cutting the bellhousing – only a cutout for the starter motor needs to be prepared.

What additional parts do I need to purchase for installation?

Toyota / Lexus UZ automatic version flexplate / ring gear, OE 32101-50010, and 4.5 mm spacer washer between engine block and flexplate, Toyota OE 32116-50010. You will also need: 184 mm (7.25") POT-type clutch with 32.5x35-26N discs, clutch slave cylinder dedicated to your gearbox, and Toyota UZ starter motor (OE) – the release bearing and clutch fork are reused from your gearbox. These parts are not included in the kit.

Which clutch fits the PMC flywheel?

The Ultralight Race flywheel is designed for 184 mm (7.25") POT-type clutches. Tilton OT-II Cerametallic 7.25" pressure plates served as the pattern – twin-disc 66-312xxx and triple-disc 66-013xxx. Other clutches meeting Tilton dimensions are also compatible. Clutch discs must have a 32.5x35-26N spline (26 teeth) for the ZF GS6-53DZ gearbox – e.g. Tilton 64185-8-VV-55 (twin-disc) or Tilton 64185-4-VTV-55 (triple-disc). The pressure plate, clutch discs, release bearing, clutch fork, and slave cylinder are not included in the kit.

Does the gearbox need to be modified?

Yes. When installing a 184 mm clutch, the gearbox guide tube (BMW OE 23 11 7 501 714) must be shortened, and if using a dual-position release bearing, set it to the 28.5 mm position. The procedure is illustrated in the "Installation manual" section.

Is the kit suitable for daily driving?

No. The Ultralight Race flywheel with a 7.25" multi-disc clutch is designed exclusively for motorsport and drifting. For a daily-driven car, we recommend the adapter version with a flywheel designed for a BMW 240 mm pressure plate.

Which starter motor should be used?

Original Toyota UZ starter motor (OE). 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 plate itself is universal and fits most BMW gearboxes (applies to adapters produced after 2022). When converting to a ZF 8HP automatic transmission, the standard flywheel must be replaced with a PMC Motorsport 8HP torque converter adapter.

What does the kit include?

Aluminum gearbox adapter plate with mounting bolts, custom PMC Motorsport Ultralight Race 184 mm flywheel with replaceable friction surface, crankshaft bolts, and pressure plate mounting bolts. The clutch, release bearing, clutch fork, and slave cylinder are not included in the kit – they must be selected to match your gearbox.

Can I buy just the adapter or just the flywheel?

Yes. Every element of the kit is available separately.

Does the price include customs duties for shipping outside the European Union?

No. The product price and shipping quote do not include customs duties or additional fees that may apply in the destination country.

Can I purchase with 0% VAT?

Yes, if you are a B2B customer outside Poland with an active EU VAT number (verified via the VIES system) or ordering with export shipping outside the EU.

Is the included manual sufficient for installation?

The manual covers mating the engine to the gearbox outside the chassis. Depending on the car, additional modifications may be required: engine mounts, bushings, firewall, transmission tunnel, driveshaft length. We recommend professional installation.

It is worth remembering that a lightweight rigid flywheel provides uncompromising throttle response at the expense of eliminating factory damping elements. This translates into more direct drivetrain engagement, which may result in a natural increase in audible gearbox gear chatter/noise. This is a desirable characteristic in motorsport vehicles resulting from the rigid connection between engine and drivetrain.