
The facts.
| Brand | STM |
|---|---|
| Part number | SDU-N88A |
| Type | Clutch slave cylinder |
| Material | CNC-machined aluminium billet |
| Finish | Black anodised |
| Piston diameter | 28 mm |
| Fitment | Ducati Panigale V4 / V4 S / V4 R (2018–2024) |
| Country of manufacture | Italy |
DescriptionThe whole story▼
Engineered to the same exacting standards that make the Panigale V4 series a benchmark superbike, the STM SDU-N88A clutch slave cylinder delivers a measurably lighter clutch pull and uncompromising mechanical precision — whether you are fighting for lap times at the track or threading through fast mountain roads.
Key Features
- Enlarged 28 mm piston diameter reduces clutch lever effort noticeably, decreasing hand fatigue on long stints and high-frequency gear changes
- CNC-machined from high-grade aluminium billet for tight dimensional tolerances and lasting structural integrity
- Colour-anodised black finish provides durable corrosion resistance while giving the engine bay a clean, purposeful appearance
- Direct OEM-position replacement — no modifications or adaptor brackets required for fitment
- Manufactured in Italy by STM, a specialist in high-performance drivetrain and clutch components
Performance and Build Quality
The enlarged 28 mm bore is the engineering core of the SDU-N88A. By increasing piston area compared to the standard slave cylinder, hydraulic pressure is translated into greater mechanical advantage, reducing the force required at the lever without altering clutch engagement feel or accuracy. For track riders who demand fast, consistent shifts lap after lap, this reduction in hand fatigue is a genuine performance advantage. For road riders, it transforms the Panigale V4's notoriously heavy clutch into something far more manageable on congested commutes or extended touring runs.
The housing is machined entirely from aluminium billet using CNC processes, ensuring every unit leaves the factory to the same precise specification. The black anodised surface treatment is not a cosmetic afterthought — it bonds to the aluminium at a molecular level, resisting corrosion, oil contamination, and the thermal cycling that a high-output Ducati V4 engine generates in normal use.
Fitment and Compatibility
The STM SDU-N88A is a confirmed direct fit for all Ducati Panigale V4, V4 S, and V4 R models from the 2018 through 2024 model years. No frame modifications, custom brackets, or specialist tools are required beyond standard workshop practice. Always verify your exact model year and variant against the part number before ordering.
Specifications
- Brand: STM
- Part number: SDU-N88A
- Type: Clutch slave cylinder
- Material: CNC-machined aluminium billet
- Finish: Black anodised
- Piston diameter: 28 mm
- Fitment: Ducati Panigale V4 / V4 S / V4 R (2018–2024)
- Country of manufacture: Italy
FitmentWhich bikes this fits▼
- Ducati Panigale V4/S/R (2018–2024)
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