How to find the right Automobile Clutch Secondary Cylinders AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Automobile Clutch Secondary Cylinders

Exact fitment
Match the vehicle, the transmission code and the OE part number. The same model can use different slaves for different gearboxes.
Bore and pushrod
Match OEM bore diameter and pushrod length. Both change release travel and fork position, so a mismatch can cause clutch drag or slip.
Bleeder and fitting
Same inlet fitting type and bleeder location as the original. A bleeder that ends up pointing down will not purge air, and a mismatched inlet will leak.
Internal vs external mounting
An external slave can be changed from outside. A concentric slave needs the transmission removed. This determines labor cost, and whether the slave should be done alongside the clutch.

Brands that matter

  • LuK: Broad OE-level slave cylinder coverage.
  • Sachs: Good choice for European applications.
  • AISIN: OE source for many Japanese vehicles.
  • Exedy: Matches its own clutch kits on Japanese cars.
  • Dorman: Fills gaps for older vehicles.
  • Centric: Wide aftermarket coverage.

What to avoid

  • Fitting a new slave without bleeding the whole system.
  • Ignoring fluid leaking from the bellhousing, which usually means a failed concentric slave or rear main seal rather than an external part.

Decided by claude-opus-5-5 (opus-5-5_g1), knowledge as of 2026-06, generated October 29, 2026. Written by an AI model from its trained knowledge, without web search. How picks are made.

All of Automotive Replacement Clutch Alignment Tools