1966 Cadillac DeVille Automatic Transmission Parts

Keep Your 1966 Cadillac DeVille in Top Shape with Quality Automatic Transmission Parts

Whether you’re repairing or upgrading your Automatic Transmission Part, using high-quality parts is key to keeping your 1966 Cadillac DeVille looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Bushings, Transmission Dipsticks, and Transmission Modulator Valves. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Automatic Transmission Parts from Trusted Brands

Looking for a reliable Automatic Transmission Part? We’ve got you covered with options from brands you know and trust like B & M. For example, B & M Automatic Transmission Parts start at just $33.99 with an average 4.1 star rating. With over 5 reviews and a solid 4 star average, you can shop with confidence knowing other Cadillac DeVille owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Cadillac DeVille Automatic Transmission Part at Advance Auto Parts is around $41.63, with a range that starts at $3.99 and goes up to $125.99. With 11 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions, AT OIL PUMP ORING, and AT MODULATOR VALVE start at just $8.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Automatic Transmission Part, don’t forget to check out other key components like Torque Converter and Related Products and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Cadillac DeVille in peak condition, inside and out.

Find Your Specific 1966 Cadillac DeVille Automatic Transmission Parts

Looking for the perfect Automatic Transmission Part for your 1966 Cadillac DeVille? You’re in the right place. Below, you’ll find links to various types of Automatic Transmission Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Automatic Transmission Parts, ensuring durability and a precise fit for your Cadillac DeVille. Whether you’re driving a 1966 model or another popular model year like 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, and 2005, we’ve got you covered. Purchasing Automatic Transmission Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Automatic Transmission Parts that fit your vehicle.

Essential 1966 Cadillac DeVille Automatic Transmission Parts

ATP – AT MODULATOR VALVE (Part No.JX-76)

AT MODULATOR VALVE

from

$48.99
AT MODULATOR VALVE
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Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-48)

Automatic Transmission Vacuum Modulator

from

$34.49
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
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(11 reviews)
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ATP – AT MODULATOR VALVE (Part No.JX-66)

AT MODULATOR VALVE

from

$17.99
AT MODULATOR VALVE
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ATP – AT CLUTCH PLATE (Part No.JC-57)

AT CLUTCH PLATE

from

$12.99
AT CLUTCH PLATE
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ATP – AT CLUTCH PLATE (Part No.SC-26)

AT CLUTCH PLATE

from

$9.99
AT CLUTCH PLATE
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ATP – AT CLUTCH PLATE (Part No.SC-30)

AT CLUTCH PLATE

from

$6.99
AT CLUTCH PLATE
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ATP – AT SOLENOID SEAL (Part No.JO-15)

AT SOLENOID SEAL

from

$3.99
AT SOLENOID SEAL

(2 reviews)
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ATP – AT OIL PUMP ORING (Part No.SO-21)

AT OIL PUMP ORING

from

$8.99
AT OIL PUMP ORING
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ATP – AT FRT PUMP BUSHING (Part No.CB-30)

AT FRT PUMP BUSHING

from

$11.99
AT FRT PUMP BUSHING
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ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

from

$10.99
AT FRT PUMP BUSHING
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Dorman – Help – Brake and Clutch Bushings (Part No.74016)

Brake and Clutch Bushings

from

$10.99
This brake pedal bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this brake pedal bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission

from

$125.99
This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:
  • Adjust Shift Points Of Transmission
  • Useful For Light Vehicles
  • For Low Rear End Gear Ratio
  • Or Useful If It Is Conversion
See More
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B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
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Mr. Gasket – Chrome Automatic Transmission Dipstick & Tube – 27" Length (Part No.9764)

Chrome Automatic Transmission Dipstick & Tube - 27" Length

from

$33.99
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.

Product Features:
  • Fits GM Th350 – Chevy Specific. Modify For Others
  • 27 In Length
  • Chrome Plated Steel
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(5 reviews)
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B & M – Aluminum Braided Dip Stick, Fits TH-350 Transmission (Part No.22165)

Aluminum Braided Dip Stick, Fits TH-350 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
  • Mounts to bellhousing
  • Sold as a kit
  • Natural finish
  • Fits TH350 & TH350C
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Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

from

$19.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
See More
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B & M – Cable Bracket (Part No.30499)

Cable Bracket

from

$33.99
Cable Bracket, GM APPLICATION: For TH400, 350, 250, 200, 700R4, 2004R transmissions.

Product Features:
  • Shifter Service Parts
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(1 reviews)
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Most Popular Transmission Bushing for 1966 Cadillac DeVilles

Enhance your 1966 Cadillac DeVille with this popular Transmission Bushing we have in stock, for $10.99.
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ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

from

$10.99
AT FRT PUMP BUSHING
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Best-Selling 1966 Cadillac DeVille Transmission Dipstick

Upgrade your DeVille with our best-selling Transmission Dipstick.
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B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
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Top-Quality Transmission Modulator Valves for 1966 Cadillac DeVilles

Choose a high-quality OEM or aftermarket Transmission Modulator Valve for Cadillac DeVilles and enjoy top-notch performance from $17.99.
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B & M – Modulator (Part No.20234)

Modulator

from

$48.99
B&M’s vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

Product Features:
  • Fully Adjustable
  • Allows You To Tailor Shift Points
  • Comes Supplied Pre-Adjusted
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(2 reviews)
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ATP – AT MODULATOR VALVE (Part No.JX-76)

AT MODULATOR VALVE

from

$48.99
AT MODULATOR VALVE
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ATP – AT MODULATOR VALVE (Part No.JX-66)

AT MODULATOR VALVE

from

$17.99
AT MODULATOR VALVE
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Our Top Pick for a 1966 Cadillac DeVille Automatic Transmission Kickdown Cable Bracket

Invest in a durable Automatic Transmission Kickdown Cable Bracket for your 1966 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
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Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

from

$19.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
See More
View Product

Our Automatic Transmission Governors for 1966 Cadillac DeVilles

Make a smart move for your 1966 Cadillac DeVille with our Automatic Transmission Governor for $125.99.
show more show less

B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission

from

$125.99
This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:
  • Adjust Shift Points Of Transmission
  • Useful For Light Vehicles
  • For Low Rear End Gear Ratio
  • Or Useful If It Is Conversion
See More
View Product

Top-Rated Automatic Transmission Part Brands For Your 1966 Cadillac DeVille

When it comes to finding the perfect Automatic Transmission Part for your 1966 Cadillac DeVille, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Automatic Transmission Part brands including B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $33.99. Purchasing a Automatic Transmission Part from us here at Advance Auto Parts is a smart move for both you and your 1966 Cadillac DeVille, providing peace of mind with parts that meet or exceed OEM standards.

Popular B & M 1966 Cadillac DeVille Automatic Transmission Parts

If you’re looking for a top-quality Automatic Transmission Part for your 1966 Cadillac DeVille, Advance Auto Parts has exactly what you need with our selection of B & M Automatic Transmission Parts. We have 1 B & M Automatic Transmission Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $33.99, you’ll find the perfect Automatic Transmission Part for your needs and budget. B & M Automatic Transmission Parts for the 1966 Cadillac DeVille come highly rated, with over 1 customer reviews and an impressive average rating of 4.1 stars. Choosing a B & M Automatic Transmission Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Cable Bracket
from $33.99
(1)
Cable Bracket
“Use it for a 700R4 swap, need to use B & M cable to fit”

FAQs for 1966 Cadillac DeVille Automatic Transmission Parts

What are the best-selling Automatic Transmission Parts for 1966 Cadillac DeVilles?

Out of 11 Automatic Transmission Parts that fit 1966 Cadillac DeVilles, the following parts are the top sellers:

What’s the price range for 1966 Cadillac DeVille Automatic Transmission Parts?

The prices of Automatic Transmission Parts for the 1966 Cadillac DeVille range from $3.99 up to $125.99 for the most premium parts.

What is the average price of an Automatic Transmission Part for a 1966 Cadillac DeVille?

The average price for Automatic Transmission Parts for the 1966 Cadillac DeVille is $41.63. Keep in mind the variety of part types within our Automatic Transmission Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Automatic Transmission Parts for other Cadillac DeVille model years?

Yes, we carry Automatic Transmission Parts for 43 model years of Cadillac DeVilles between 1961 and 2005. The following model years are the most popular for Automatic Transmission Part purchases: 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, and 1997.

What are the cheapest Automatic Transmission Parts for my 1966 Cadillac DeVille?

The cheapest 1966 Cadillac DeVille Automatic Transmission Parts we carry are:

Does Advance Auto Parts sell Automatic Transmission Parts for any other 1966 Cadillac models?

Yes. We stock Automatic Transmission Parts for 3 other popular 1966 Cadillac models. Some of the most popular are 1966 Eldorado Automatic Transmission Parts, 1966 Fleetwood Automatic Transmission Parts, 1966 Calais Automatic Transmission Parts, and 1966 Commercial Chassis Automatic Transmission Parts.

What are the top-rated Automatic Transmission Parts that fit the 1966 Cadillac DeVille?

Based on 5 reviews by customers, our 1966 Cadillac DeVille Automatic Transmission Parts have an average customer rating of 4 stars. These are the highest-rated categories of Automatic Transmission Parts for the 1966 Cadillac DeVille and their top-rated products:
  • Automatic Transmission Shifter Cable Brackets
  • Automatic Transmission Fluid Filler Tube Seals

What types of Automatic Transmission Parts do you sell for my 1966 Cadillac DeVille?

As of 11/2/25, these are some of the most in-demand types of Automatic Transmission Parts for a 1966 Cadillac DeVille:

Can I get help with 1966 Cadillac DeVille Automatic Transmission Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Cadillac Automatic Transmission Parts and more.

What is your return policy for Cadillac DeVille Automatic Transmission Parts?

Advance Auto Parts keeps returns simple. For new Cadillac DeVille Automatic Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

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