GM 8665355 3rd Clutch Pressure Switch Assembly – Genuine GM Part

Ensure correct transmission operation with this Genuine GM 3rd Clutch Pressure Switch Assembly (GM part number 8665355). Designed to meet original factory specifications, this switch plays a vital role in monitoring hydraulic pressure for proper gear engagement, helping maintain smooth and reliable shifting.

Vehicle Compatibility

Buick

• Century: 1989–1991
  4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.3L

• Skylark: 1989–1991, 1995
  4 Cyl 2.3L, 4 Cyl 2.5L, 6 Cyl 3.1L, 6 Cyl 3.3L

Chevrolet

• Beretta: 1989–1993
  4 Cyl 2.0L, 2.2L, 2.3L, 6 Cyl 2.8L, 3.1L

• Cavalier: 1989–1994
  4 Cyl 2.0L, 2.2L, 6 Cyl 2.8L, 3.1L

• Corsica: 1989–1993
  4 Cyl 2.0L, 2.2L, 6 Cyl 2.8L, 3.1L

• Lumina: 1990–1993
  6 Cyl 3.1L

Oldsmobile

• Achieva: 1992–1993, 1995
  4 Cyl 2.3L, 6 Cyl 3.1L

• Calais: 1989–1991
  4 Cyl 2.3L, 2.5L, 6 Cyl 3.3L

• Cutlass: 1989–1993
  4 Cyl 2.3L, 2.5L, 6 Cyl 2.8L, 3.1L, 3.3L, 3.4L

Pontiac

• 6000: 1989–1991
  4 Cyl 2.5L, 6 Cyl 2.8L, 3.1L

• Grand Am: 1989–1993, 1995
  4 Cyl 2.0L, 2.3L, 2.5L, 6 Cyl 3.1L

• Grand Prix: 1990–1993
  4 Cyl 2.3L, 6 Cyl 3.1L, 3.4L

• Sunbird: 1992–1994
  6 Cyl 3.1L

Key Features & Benefits

• Genuine GM Part (8665355) – Factory-correct fit and performance.

• Critical Transmission Component – Monitors 3rd clutch pressure for correct shifting operation.

• OEM Quality & Reliability – Built to GM standards for long service life.

• Direct Replacement – Installs in place of the original switch with no modifications required.

• Ideal for Repairs or Restorations – Maintains originality and proper drivetrain function.

Why Choose Customville American?

With over 40 years supplying classic GM restoration parts to UK enthusiasts, we stock high-quality Genuine GM components locally—ensuring fast delivery and no import delays.