1977 GMC C25 Auto Trans Clutch Piston Seals
Save up to 40% on original replacement 1977 GMC C25 Auto Trans Clutch Piston Seals. Navigate our online catalogue to find Auto Trans Clutch Piston Seals and other parts designed specifically to fit a 1977 GMC C25.


Auto Trans Clutch Piston Seal
$15.13
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Transmission Code: THM400;
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Transmission Code: THM400;
Vehicle Fitment Notes:
Kit - Lip seal Position: Forward & Direct Clutch - Inner/Center/Outer
Kit - Lip seal Position: Forward & Direct Clutch - Inner/Center/Outer

Auto Trans Clutch Piston Seal
$14.90
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$14.90
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$14.90
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$14.90
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center
Kit - Lip seal Position: Direct Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$16.00
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Forward Clutch - Inner/Outer
Kit - Lip seal Position: Forward Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$16.00
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Forward Clutch - Inner/Outer
Kit - Lip seal Position: Forward Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$16.00
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Forward Clutch - Inner/Outer
Kit - Lip seal Position: Forward Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$16.00
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Forward Clutch - Inner/Outer
Kit - Lip seal Position: Forward Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$14.16
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$14.16
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$14.16
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$14.16
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer
Kit - Lip seal Position: Intermediate Clutch - Inner/Outer

Auto Trans Clutch Piston Seal
$5.40
$9.04
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$5.40
$9.04
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$5.40
$9.04
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center

Auto Trans Clutch Piston Seal
$5.40
$9.04
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350;
Vehicle Fitment Notes:
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center
Kit Position: LCS - Low & Reverse Clutch - Inner/Outer/Center