1977 Pontiac Grand Prix Auto Trans Vacuum Modulator
Navigate our online catalogue to find original replacement Auto Trans Vacuum Modulators specifically designed to fit a 1977 Pontiac Grand Prix.







Auto Trans Vacuum Modulator
$122.71 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM400; Transmission Speeds: 3;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM400; Transmission Speeds: 3;






Auto Trans Vacuum Modulator
$122.71 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM400; Transmission Speeds: 3;
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM400; Transmission Speeds: 3;






Auto Trans Vacuum Modulator
$57.72 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2); Engine VIN: Y; Transmission Code: THM350;
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2); Engine VIN: Y; Transmission Code: THM350;






Auto Trans Vacuum Modulator
$73.25 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3); Engine VIN: P; Transmission Code: THM350;
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3); Engine VIN: P; Transmission Code: THM350;






Auto Trans Vacuum Modulator
$73.25 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM350;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM350;
Vehicle Fitment Notes:
w/o High Altitude Emissions
w/o High Altitude Emissions






Auto Trans Vacuum Modulator
$73.25 CAD
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM350;
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM350;
Vehicle Fitment Notes:
w/o High Altitude Emissions
w/o High Altitude Emissions






Auto Trans Vacuum Modulator
$110.30 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM400; Transmission Speeds: 3;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM400; Transmission Speeds: 3;






Auto Trans Vacuum Modulator
$110.30 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM400; Transmission Speeds: 3;
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM400; Transmission Speeds: 3;






Auto Trans Vacuum Modulator
$58.68 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2); Engine VIN: Y; Transmission Code: THM350;
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2); Engine VIN: Y; Transmission Code: THM350;






Auto Trans Vacuum Modulator
$67.79 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3); Engine VIN: P; Transmission Code: THM350;
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3); Engine VIN: P; Transmission Code: THM350;






Auto Trans Vacuum Modulator
$67.79 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM350;
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Transmission Code: THM350;
Vehicle Fitment Notes:
w/o High Altitude Emissions
w/o High Altitude Emissions






Auto Trans Vacuum Modulator
$67.79 CAD
Call For Availability
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM350;
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0); Transmission Code: THM350;
Vehicle Fitment Notes:
w/o High Altitude Emissions
w/o High Altitude Emissions



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2);
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2);
Vehicle Fitment Notes:
No color code Auto Trans Vacuum Modulator Use until inventory is depleted
No color code Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
No color code Auto Trans Vacuum Modulator Use until inventory is depleted
No color code Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3);
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3);
Vehicle Fitment Notes:
No color code Auto Trans Vacuum Modulator Use until inventory is depleted
No color code Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
No color code Auto Trans Vacuum Modulator Use until inventory is depleted
No color code Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
No color code Auto Trans Vacuum Modulator Use until inventory is depleted
No color code Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2);
Engine Base: 4.9L 301ci V8 (4.00x3.00; 101.6x76.2);
Vehicle Fitment Notes:
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Engine Base: 5.7L 350ci V8 (4.06x3.39; 103.0x86.0);
Vehicle Fitment Notes:
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3);
Engine Base: 5.7L 5733cc 350ci V8 (3.88x3.75; 98.4x95.3);
Vehicle Fitment Notes:
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted



Auto Trans Vacuum Modulator
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Engine Base: 6.6L 403ci V8 (4.35x3.39; 110.5x86.0);
Vehicle Fitment Notes:
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted
Brown screw Auto Trans Vacuum Modulator Use until inventory is depleted