Lightweight flywheel Ford Focus II ST / RS, Mondeo IV, S-MAX, Kuga I / Volvo C30 S40 V50 S60 S80 V70 2.5 T – Ø240 mm – 6.32 kg / 13.93 lb

PMC Clutch lightweight flywheel Ford Focus II ST / RS, Mondeo IV, S-MAX, Kuga I / Volvo C30 S40 V50 S60 S80 V70 – 2.5 T R5 – 240 mm / 9.45" – 6.32 kg / 13.93 lbs (approx. −47% vs OE)

Lightweight single-mass flywheel (SMF) PMC Clutch for turbocharged 5-cylinder Ford 2.5 T Duratec ST / Duratec RS (Focus II ST 225 hp, Focus II RS 305 hp, Mondeo IV, S-MAX, and Kuga I) and Volvo B5254 engines, installed in Volvo C30, S40 II, V50, S60 II, S80 II, and V70 III. The flywheel is a direct replacement for the factory Ford OE 1367763, 1371860, 1559631, 1575135, 4N51-6477-FB, 4N51-6477-FC, 6M5G-6477-AA, 9M5N-6477-AA; Volvo OE 30681137, 31259434 flywheels – installed plug & play without any adapter or modifications, as all mounting points are retained exactly like the stock unit. The flywheel body is CNC-machined from aluminum, featuring a replaceable steel friction plate and a zinc-plated starter ring gear (144 teeth). The flywheel features an integrated reluctor ring / trigger wheel compatible with the factory crankshaft position sensor, ensuring the engine operates seamlessly with original factory ECU engine management without modifications. The flywheel works with the factory 240 mm clutch (OE Volvo pressure plate 8689859) as well as any OE-fit aftermarket or custom clutch – for example Sachs Performance 001115.999991, Sachs 3000 990 192, or LuK 624 3261 33. Flywheel bolts are not included – required bolts are Sachs 1874 000 051, Volvo 9454743, Ford OE 6M5G-6379-AA, or Ford OE 1371854 (M11x1.25x26).

The factory flywheel weighs approximately 12 kg / 26.5 lbs, whereas the PMC Clutch flywheel weighs 6.32 kg / 13.93 lbs, representing an approx. 47% weight reduction – nearly 5.7 kg less rotational mass directly off the crankshaft. Lower inertia allows the turbocharged 2.5 T engine to rev up faster and drop revs quicker off throttle, making rev-matching on downshifts significantly easier and sharper. While engine horsepower remains unchanged, drivetrain losses are reduced, delivering more usable power to the wheels. A lightweight flywheel performs exceptionally well on technical, twisty circuits where the car regains exit speed much faster – an ideal upgrade for Focus ST and RS as well as other 5-cylinder 2.5 T vehicles driven daily, on track days, in rallycross, and in time attack.

PMC Clutch flywheels are engineered using 3D scanning of original factory components, with the dimensional accuracy of every batch inspected via a measuring arm. Manufacturing takes place on modern CNC machining centers, guaranteeing repeatability and perfect concentricity with the crankshaft. Every flywheel is balanced prior to dispatch and engraved with an individual production serial number.

Additional Information

Installation Instructions

The PMC Clutch flywheel mounts directly in place of the factory Ford / Volvo 2.5 T flywheel, without any adapter or modifications – the mounting points are identical to the OE unit, and the trigger wheel is fully compatible with the factory crankshaft position sensor. Flywheel bolts are not included with the product; installation requires new Sachs 1874 000 051, Volvo 9454743, Ford OE 6M5G-6379-AA, or Ford OE 1371854 (M11x1.25x26) bolts tightened to a torque of 100 Nm / 73.8 lb⋅ft using threadlocker. Pressure plate mounting bolts, crankshaft bolt reinforcement washer, and the reluctor ring / trigger wheel are included in the kit. Select a 240 mm / 9.45" clutch kit designed for 2.5 T engines – either the factory OE clutch kit or any aftermarket/custom clutch compliant with OE mounting points (see compatibility table for part references). We recommend checking the condition of the release system prior to assembly.

Frequently Asked Questions

Which cars and engines is this flywheel compatible with?

The flywheel is designed for 5-cylinder Ford 2.5 T engines (HYDA – Focus II ST, JZDA – Focus II RS, HUBA / HUWA – Mondeo IV and S-MAX, HYDB / HYDC – Kuga I) and Volvo B5254 (T2, T3, T6, T7, T8, T10, T11) paired with manual transmissions – in Volvo C30, S40 II, V50, S60 II, S80 II, and V70 III.

Is this a direct replacement for the OE flywheel?

Yes. The PMC Clutch flywheel replaces factory Ford OE 1367763, 1371860, 1559631, 1575135, 4N51-6477-FB, 4N51-6477-FC, 6M5G-6477-AA, 9M5N-6477-AA; Volvo OE 30681137, 31259434. Installation is plug & play – all mounting points are retained exactly like the stock flywheel, and the trigger wheel matches the OE crank sensor, requiring no adapter or modifications.

What does the flywheel weigh and how much lighter is it than the factory unit?

The PMC Clutch flywheel weighs 6.32 kg / 13.93 lbs, whereas the factory flywheel weighs approximately 12 kg / 26.5 lbs. This represents an approx. 47% weight reduction, removing nearly 5.7 kg of rotational mass directly from the crankshaft.

Which clutch fits the PMC flywheel?

The flywheel works with the factory 240 mm / 9.45" clutch (OE Volvo pressure plate 8689859, OE kits listed in the compatibility table). Any aftermarket or custom clutch matching OE mounting points can also be used – example kits include Sachs Performance 001115.999991 / 001115.999944, Sachs 3000 990 192, and LuK 624 3261 33.

Is this flywheel suitable for daily driving?

Yes. A lightweight single-mass flywheel paired with an OE-spec clutch can easily be driven daily, delivering significantly crisper throttle response. Note that a single-mass flywheel may increase transmission noise transfer, as detailed in the note below.

Are flywheel bolts included and what is the torque specification?

Flywheel bolts are not included – required bolts are Sachs 1874 000 051, Volvo 9454743, Ford OE 6M5G-6379-AA, or Ford OE 1371854 (M11x1.25x26), which must be torqued to 100 Nm / 73.8 lb⋅ft with threadlocker applied. We recommend fitting brand-new bolts every time the flywheel is installed. Pressure plate mounting bolts and the crankshaft bolt washer are included.

Does a lightweight flywheel increase transmission gear chatter?

A single-mass flywheel eliminates factory dual-mass damping elements, meaning gearbox mechanical operation may become more audible, especially at idle. This is a natural characteristic of a direct, rigid engine-to-transmission coupling, common and desirable in motorsport, and does not indicate a defect.

What is included in the package?

The package contains the aluminum flywheel with a replaceable steel friction plate and zinc-plated starter ring gear, reluctor ring / trigger wheel, pressure plate mounting bolts, and crankshaft bolt washer. Flywheel-to-crank bolts, clutch pressure plate, and clutch disc are not included with this product.

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 import taxes that may apply in the recipient's country.

Can I purchase with 0% VAT?

Yes, if you are a B2B customer outside Poland with an active EU VAT number (validated in the VIES system), or if your order is being exported outside the EU.

Please note that a lightweight single-mass flywheel provides uncompromising throttle response at the expense of factory damping elements. This results in a more direct drivetrain engagement, which naturally may increase audible gearbox chatter/gear rollover noise. This is an intended and normal characteristic in motorsport vehicles resulting from the rigid mechanical connection between the engine and drivetrain.