Accossato hydraulic clutch conversion kit HS053 for Yamaha SR400, view 1
02 · Data & docs

The facts.

Technical data
Part numberHS053
TypeHydraulic clutch conversion kit
Piston diameter13.5 mm
HoseIncluded
ActuatorAT002-64-73
FluidDOT 4 only
FitmentYamaha SR400 (2014-2016)
Road approvalNo ABE documented; check local rules
DescriptionThe whole story▼

Even the air-cooled, single-cylinder SR400 gets the HS053 treatment: Accossato's hydraulic clutch kit replaces the standard cable with a 13.5 mm-piston pump, a matched hose and an AT002-64-73 actuator, made in Italy and supplied complete. The stated aim is a lighter lever and less upkeep than a cable needs, a change that sits oddly next to the SR400's otherwise old-school, kickstart-only character, but one that custom and cafe-racer builders fitting modern parts to this retro platform have reason to welcome. Only DOT 4 fluid belongs in the system.

Key Features

  • Converts the Yamaha SR400's clutch from cable to hydraulic actuation
  • Clutch pump with 13.5 mm piston
  • Dedicated clutch hose included
  • AT002-64-73 actuator included
  • Cuts the effort needed at the lever
  • Very little maintenance once bled and filled
  • DOT 4 fluid only
  • Made in Italy

Construction and Material Quality

Accossato makes the HS053 in Italy as a lightweight, ready-to-fit replacement for the SR400's cable clutch, with the 13.5 mm-piston pump, hose and AT002-64-73 actuator supplied as one matched set rather than parts to be paired up separately. The description Accossato gives, easy to install and designed to cut lever effort, holds regardless of how old the platform underneath the clutch is, and the trade-off remains the same: very little maintenance once it is fitted and bled, instead of the periodic cable adjustment the SR400 was built around.

A Hydraulic Upgrade for a Kickstart Classic

The SR400 is one of the last mass-production motorcycles sold with a kickstart and no electric start, a deliberately old-fashioned machine that has stayed close to its original single-cylinder design for decades, and it is exactly the sort of bike where owners either keep everything period-correct or start swapping in modern components one at a time. A hydraulic clutch sits firmly in the second camp: it changes nothing about the engine's character or the kickstart ritual, but it does remove the stretch and adjustment that come with the cable clutch the SR400 has used since it returned to production. For riders building a cafe racer or tracker from this base, that is one less maintenance item to think about.

Fitment and Compatibility

This listing covers the Yamaha SR400 from the 2014 to 2016 model years, with the exact range confirmed in the Fitment tab on this page. Accossato produces the identical HS053 architecture for several other motorcycles, including Yamaha's own MT-07 and MT-09, but always as a separate, bike-specific listing rather than a universal kit, since the pump, hose and actuator are matched to one application at a time. SR400 owners should check their bike's year falls within the stated range before ordering.

Road Approval

There is no ABE or parts certificate documented by Accossato for the HS053; registration rules depend on the country, so check before road use.

Scope of Delivery

1x Accossato clutch pump with 13.5 mm piston, 1x clutch hose, 1x AT002-64-73 actuator, for the Yamaha SR400 (2014–2016).

Specifications

  • Part number: HS053
  • Type: Hydraulic clutch conversion kit
  • Piston diameter: 13.5 mm
  • Hose: Included
  • Actuator: AT002-64-73
  • Fluid: DOT 4 only
  • Fitment: Yamaha SR400 (2014-2016)
  • Road approval: No ABE documented; check local rules
What's includedEverything in the box▼
  • 1x Accossato hydraulic clutch kit for Yamaha SR400
FitmentWhich bikes this fits▼
  • Yamaha SR400 (2014–2016)
  • BMW F800GS (2010–2018)
  • Honda NC750S (2015–2018)
  • Honda NC750X (2015–2018)
  • KTM 790 ADVENTURE (2019–2020)
  • KTM 790 DUKE (2018–2020)
  • Suzuki GSX-S1000 (2015–2021)
  • Suzuki GSX-S1000F (2015–2021)
  • Yamaha MT-07 (2014–2020)
  • Yamaha MT-09 (2013–2020)
07 · Support

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