1981 Buick Estate Wagon Auto Trans Modulator Valves
Save up to 40% on original replacement 1981 Buick Estate Wagon Auto Trans Modulator Valves. Navigate our online catalogue to find Auto Trans Modulator Valves and other parts designed specifically to fit a 1981 Buick Estate Wagon.







Auto Trans Modulator Valve
$69.32
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$69.32
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$69.32
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$69.32
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$70.56
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$70.56
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$70.56
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe






Auto Trans Modulator Valve
$70.56
In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/o Stripe
w/o Stripe



Auto Trans Modulator Valve
$41.49
$37.55
10+ In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Vehicle Fitment Notes:
1 Red Stripe; 3.73:1, or 4.10:1 Ratio Includes: (1) hose Length: 2.959"
1 Red Stripe; 3.73:1, or 4.10:1 Ratio Includes: (1) hose Length: 2.959"



Auto Trans Modulator Valve
$41.49
$37.55
10+ In Stock
Ships: Today, Sep. 23rd
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Pick-Up: Ready in 1 Hour (Order before 4:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
1 Red Stripe; 3.73:1, or 4.10:1 Ratio Includes: (1) hose Length: 2.959"
1 Red Stripe; 3.73:1, or 4.10:1 Ratio Includes: (1) hose Length: 2.959"



Auto Trans Modulator Valve
$41.49
$25.10
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Vehicle Fitment Notes:
1 Red Stripe; 3.21:1, 3.40:1, 3.73:1, or 4.11:1 Ratio; Adj 12.5-18 - Eda 1.75 - Red Stripe Length: 2.959"
1 Red Stripe; 3.21:1, 3.40:1, 3.73:1, or 4.11:1 Ratio; Adj 12.5-18 - Eda 1.75 - Red Stripe Length: 2.959"



Auto Trans Modulator Valve
$41.49
$25.10
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
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);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
1 Red Stripe; 3.21:1, 3.40:1, 3.73:1, or 4.11:1 Ratio; Adj 12.5-18 - Eda 1.75 - Red Stripe Length: 2.959"
1 Red Stripe; 3.21:1, 3.40:1, 3.73:1, or 4.11:1 Ratio; Adj 12.5-18 - Eda 1.75 - Red Stripe Length: 2.959"







Auto Trans Modulator Valve
$101.66
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe







Auto Trans Modulator Valve
$101.66
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe







Auto Trans Modulator Valve
$101.66
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe







Auto Trans Modulator Valve
$101.66
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe






Auto Trans Modulator Valve
$73.25
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;






Auto Trans Modulator Valve
$73.25
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;






Auto Trans Modulator Valve
$73.25
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Fuel Type: DIESEL; Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Fuel Type: DIESEL; Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
OE Style w/o Calif. Emissions
OE Style w/o Calif. Emissions






Auto Trans Modulator Valve
$67.79
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;






Auto Trans Modulator Valve
$67.79
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;






Auto Trans Modulator Valve
$67.79
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Fuel Type: DIESEL; Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Fuel Type: DIESEL; Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
OE Style w/o Calif. Emissions
OE Style w/o Calif. Emissions






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
with gray stripe
with gray stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
with gray stripe
with gray stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM250C/M31; Transmission Speeds: 3;
Vehicle Fitment Notes:
with gray stripe
with gray stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
w/ Gray Stripe
w/ Gray Stripe






Auto Trans Modulator Valve
$94.09
Call For Availability
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Transmission Code: THM350C; Transmission Speeds: 3;
Vehicle Fitment Notes:
with gray stripe
with gray stripe

Auto Trans Modulator Valve
$95.85
$62.95
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Engine Base: 5.0L 307ci V8 (3.80x3.39; 96.5x86.1);
Vehicle Fitment Notes:
Adj 12-19.5 - Eda 2.48 - Black/Red - W/ EGR
Adj 12-19.5 - Eda 2.48 - Black/Red - W/ EGR

Auto Trans Modulator Valve
$95.85
$62.95
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);
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Adj 12-19.5 - Eda 2.48 - Black/Red - W/ EGR
Adj 12-19.5 - Eda 2.48 - Black/Red - W/ EGR