FTE
Slave Cylinder

FTE 3106521 Clutch Slave Cylinder

Brand FTE 3106521
Connector Type Female
Disconnect Tool N
Install Instr. Incl N
Orings Pins Included N
Pre Filled N
Product line Slave Cylinder
Fits Chevrolet and GMC · 45 vehicles

OE-style replacement. Clutch slave cylinder for straightforward hydraulic service.

Female connector for a secure hydraulic connection.

Not pre-filled, so fluid service is handled during installation.

Cross-references ACI 386004, AMS Automotive S0403 and AMS Automotive S0465 for the same application. See all 36.

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Clutch Slave Cylinder for Manual Transmission Service

This FTE Slave Cylinder, part number 3106521, is a clutch slave cylinder for manual transmission systems. It is built for direct hydraulic actuation at the transmission bell housing and is listed for Chevrolet S10, Chevrolet S10 Blazer, and GMC S15 applications.

Key Features

  • Female connector type for the hydraulic connection
  • External bell-housing mounting location for clutch fork actuation
  • OE-style hydraulic design for manual transmission clutch release
  • Not pre-filled, allowing system service and bleeding during installation
  • FTE Slave Cylinder 3106521 for select Chevrolet and GMC manual transmission applications

Product Details

The FTE 3106521 clutch slave cylinder transfers hydraulic pressure to the clutch fork, helping disengage the clutch during shifting. As a manual transmission component, it is used in systems where the slave cylinder sits outside the transmission bell housing and works with the release mechanism to separate engine power from the transmission. Valeo’s transmission engineering background is reflected in the product line’s focus on efficient power transfer and OE-level hydraulic performance.

Compatible With 1983-1991 Chevrolet S10, slave cylinder; 1983-1990 GMC S15, slave cylinder; and 1983-1989 Chevrolet S10 Blazer, slave cylinder. This part cross-references Valeo 5593020 for the same application.

Common Issues This Part May Address

  • Hard or inconsistent clutch pedal feel caused by hydraulic wear
  • Difficulty disengaging the clutch during gear changes
  • Hydraulic fluid leakage at the slave cylinder
  • Incomplete clutch release that can lead to shifting problems
  • Loss of clutch fork movement in manual transmission operation

Installation Notes

Verify the female connector type and compare the original unit before installation. Because this slave cylinder is not pre-filled, the hydraulic system must be filled and bled after installation to remove air from the circuit. Confirm bell-housing mounting and vehicle application before service on Chevrolet S10, Chevrolet S10 Blazer, or GMC S15 models.

Quality Assurance

FTE and Valeo supply clutch hydraulic components with OEM-focused engineering and application-specific design for manual transmission service. Part number 3106521 is built for the listed vehicle applications and should be matched to the original part and hydraulic connection style before installation.

This part fits 45 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1991ChevroletS102.5LL4N/ASlave Cylinder
1991ChevroletS104.3LV6N/ASlave Cylinder
1991ChevroletS102.8LV6N/ASlave Cylinder
1990ChevroletS104.3LV6N/ASlave Cylinder
1990ChevroletS102.8LV6N/ASlave Cylinder
1990ChevroletS102.5LL4N/ASlave Cylinder
1990GMCS152.5LL4N/ASlave Cylinder
1990GMCS152.8LV6N/ASlave Cylinder
1990GMCS154.3LV6N/ASlave Cylinder
1989ChevroletS102.8LV6N/ASlave Cylinder
1989ChevroletS102.5LL4N/ASlave Cylinder
1989ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1989GMCS152.5LL4N/ASlave Cylinder
1989GMCS152.8LV6N/ASlave Cylinder
1988ChevroletS102.5LL4N/ASlave Cylinder
1988ChevroletS102.8LV6N/ASlave Cylinder
1988ChevroletS10 Blazer2.5LL4N/ASlave Cylinder
1988ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1988GMCS152.8LV6N/ASlave Cylinder
1988GMCS152.5LL4N/ASlave Cylinder
1987ChevroletS102.8LV6N/ASlave Cylinder
1987ChevroletS102.5LL4N/ASlave Cylinder
1987ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1987ChevroletS10 Blazer2.5LL4N/ASlave Cylinder
1987GMCS152.5LL4N/ASlave Cylinder
1987GMCS152.8LV6N/ASlave Cylinder
1986ChevroletS102.8LV6N/ASlave Cylinder
1986ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1986GMCS152.8LV6N/ASlave Cylinder
1986GMCS152.5LL4N/ASlave Cylinder
1985ChevroletS102.8LV6N/ASlave Cylinder
1985ChevroletS102.5LL4N/ASlave Cylinder
1985ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1985ChevroletS10 Blazer2.5LL4N/ASlave Cylinder
1985GMCS152.8LV6N/ASlave Cylinder
1985GMCS152.5LL4N/ASlave Cylinder
1984ChevroletS102.0LL4N/ASlave Cylinder
1984ChevroletS102.8LV6N/ASlave Cylinder
1984ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1984ChevroletS10 Blazer2.0LL4N/ASlave Cylinder
1984GMCS152.8LV6N/ASlave Cylinder
1984GMCS152.0LL4N/ASlave Cylinder
1983ChevroletS102.8LV6N/ASlave Cylinder
1983ChevroletS10 Blazer2.8LV6N/ASlave Cylinder
1983GMCS152.8LV6N/ASlave Cylinder
Directly replaces or cross-references 36 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACI — 386004AMS Automotive — S0403AMS Automotive — S0465Centric Parts — 138.62003Dixie Electric Ltd — 10378FEL-PRO — 13202Four Seasons — 37816Gates — 12166LuK — LSC120LuK — LSC122PERFECTION — 37728Sachs — SH6004Valeo — 5593020138.660052203173863093863281553437815580493155941431803011918030143191831841918320394312903894312903089704856709943129030CS2219D161057SC37728SC37816SC103471SC103721W909079W909103