1966 Buick Riviera Automatic Transmission Kits

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Keep Your 1966 Buick Riviera in Top Shape with Quality Automatic Transmission Kits

Whether you’re repairing or upgrading your Automatic Transmission Kit, using high-quality parts is key to keeping your 1966 Buick Riviera looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Shift Kits, Transmission Master Repair Kits, and Transmission Rebuild Kits. 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.

Competitive Prices and Extensive Inventory

The average price for a 1966 Buick Riviera Automatic Transmission Kit at Advance Auto Parts is around $260.39, with a range that starts at $77.19 and goes up to $519.99. With 8 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like ATP Automatic Transmission Master Repair Kit, JM-9, ATP Automatic Transmission Overhaul Kit, JGS-52, and ATP Automatic Transmission Banner Repair Kit, JM-10 start at just $81.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Automatic Transmission Kit, 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 Buick Riviera in peak condition, inside and out.

Essential 1966 Buick Riviera Automatic Transmission Kits

B & M – B & M Transpak For 68-81 Th 350 Transmission, 30228 (Part No.30228)

B & M Transpak For 68-81 Th 350 Transmission, 30228

from

$172.99
The B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B&M Transpak kit for 1968-1981 GM TH350 automatic transmissions. Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive. Notes: Does Not Fit GM TH350C transmissions.
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B & M – B & M Transmission Kit, Master Overhaul Kit For Th400, 21041 (Part No.21041)

B & M Transmission Kit, Master Overhaul Kit For Th400, 21041

from

$478.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.
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B & M – B & M Shift Improver Kit For 65-87 Th400 Transmission, 20260 (Part No.20260)

B & M Shift Improver Kit For 65-87 Th400 Transmission, 20260

from

$77.19
The B&M Shift Improver kits feature two options to recalibrating your 1965-1987 GM TH400, TH375 and TH475 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.
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B & M – B & M Transkit For 65-87 Th400 Transmission, 20229 (Part No.20229)

B & M Transkit For 65-87 Th400 Transmission, 20229

from

$519.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.
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ATP – ATP Automatic Transmission Shift Kit, JK-1 (Part No.JK-1)

ATP Automatic Transmission Shift Kit, JK-1

from

$80.99
ATP Transmission Components are exact fit, no compromise replacement parts
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B & M – B & M Shift Improver Kit For 68-81 Th-350 Transmission, 30262 (Part No.30262)

B & M Shift Improver Kit For 68-81 Th-350 Transmission, 30262

from

$73.89
The B&M Shift Improver kits feature two options to recalibrating your 1968-1981 GM TH350 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit. Note: Does not fit GM TH350C with lock-up. Use part# 30235 for TH350C transmissions.
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ATP – ATP Automatic Transmission Overhaul Kit, SGS-28 (Part No.SGS-28)

ATP Automatic Transmission Overhaul Kit, SGS-28

from

$102.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Overhaul Kits come with seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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B & M – B & M Master Overhaul Kit, Th350 Transmission, 21042 (Part No.21042)

B & M Master Overhaul Kit, Th350 Transmission, 21042

from

$385.99
The Master Racing overhaul kits are supplied with all of the gaskets, seals, bushings, and friction material required for a complete high performance or racing trans overhaul. Does not come with transbrake gaskets or components.
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ATP – ATP Automatic Transmission Banner Repair Kit, SM-11 (Part No.SM-11)

ATP Automatic Transmission Banner Repair Kit, SM-11

from

$206.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Banner Kits come with friction clutch plates, seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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ATP – ATP Automatic Transmission Overhaul Kit, SGS-27 (Part No.SGS-27)

ATP Automatic Transmission Overhaul Kit, SGS-27

from

$89.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Overhaul Kits come with seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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ATP – ATP Automatic Transmission Banner Repair Kit, JM-10 (Part No.JM-10)

ATP Automatic Transmission Banner Repair Kit, JM-10

from

$179.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Automatic Transmission Banner Repair Kits come with friction plates, seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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B & M – B & M Transmission Kit, Transkit 68-81 Th-350 Transmission, 30229 (Part No.30229)

B & M Transmission Kit, Transkit 68-81 Th-350 Transmission, 30229

from

$478.99
B&M Transkits give you the same high-quality components that are used in all B&M Street and Strip transmissions. They also include special directions on how to modify your case, pump, and components.
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ATP – ATP Automatic Transmission Overhaul Kit, JGS-52 (Part No.JGS-52)

ATP Automatic Transmission Overhaul Kit, JGS-52

from

$81.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Overhaul Kits come with seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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Pro-King – Pro-King Automatic Transmission Basic Rebuild Kit, KB-828 (Part No.KB-828)

Pro-King Automatic Transmission Basic Rebuild Kit, KB-828

from

$78.99
This Basic Rebuild Kit contains a complete Gasket Kit and Friction set. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.
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ATP – ATP Automatic Transmission Master Repair Kit, JM-9 (Part No.JM-9)

ATP Automatic Transmission Master Repair Kit, JM-9

from

$269.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Master Repair Kits come with friction And steel clutch plates, seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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ATP – ATP Automatic Transmission Master Repair Kit Plus, JMS-9 (Part No.JMS-9)

ATP Automatic Transmission Master Repair Kit Plus, JMS-9

from

$393.99
ATP Master Repair Kit Plus contains friction And steel clutch plates, gaskets, seals, o-rings, sealing rings, sump filter, And commonly replaced bushings required to high quality transmission rebuilding.
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Pro-King – Pro-King Automatic Transmission Deluxe Rebuild Kit, KS-15 (Part No.KS-15)

Pro-King Automatic Transmission Deluxe Rebuild Kit, KS-15

from

$268.99
One of the most complete Rebuild Kits in the automatic transmission industry today. Each Rebuild Kit contains only the highest quality parts that meet or exceed OE specifications.
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ATP – ATP Automatic Transmission Master Repair Kit Plus, JMS-27 (Part No.JMS-27)

ATP Automatic Transmission Master Repair Kit Plus, JMS-27

from

$607.99
ATP Master Repair Kit Plus contains friction And steel clutch plates, gaskets, seals, o-rings, sealing rings, sump filter, And commonly replaced bushings required to high quality transmission rebuilding.
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ATP – ATP Automatic Transmission Master Repair Kit, SM-9 (Part No.SM-9)

ATP Automatic Transmission Master Repair Kit, SM-9

from

$276.99
ATP Master Repair Kits contain friction And steel clutch plates, gaskets, seals, o-rings, sealing rings, And commonly replaced bushings required for complete transmission rebuilding.
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Most Popular Transmission Shift Kits for 1966 Buick Rivieras

Enhance your 1966 Buick Riviera with one of the 4 Transmission Shift Kits we have in stock, starting at just $77.19.

B & M – B & M Transkit For 65-87 Th400 Transmission, 20229 (Part No.20229)

B & M Transkit For 65-87 Th400 Transmission, 20229

from

$519.99
A B&M transmission in a box! Transform your automatic transmission into a full-tilt B&M performer! This is our ultimate transmission kit – it comes complete with full instructions on how to assemble your transmission to B&M specifications.
See More

B & M – B & M Transmission Kit, Master Overhaul Kit For Th400, 21041 (Part No.21041)

B & M Transmission Kit, Master Overhaul Kit For Th400, 21041

from

$478.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.
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ATP – ATP Automatic Transmission Shift Kit, JK-1 (Part No.JK-1)

ATP Automatic Transmission Shift Kit, JK-1

from

$80.99
ATP Transmission Components are exact fit, no compromise replacement parts
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B & M – B & M Shift Improver Kit For 65-87 Th400 Transmission, 20260 (Part No.20260)

B & M Shift Improver Kit For 65-87 Th400 Transmission, 20260

from

$77.19
The B&M Shift Improver kits feature two options to recalibrating your 1965-1987 GM TH400, TH375 and TH475 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.
See More

Best-Selling 1966 Buick Riviera Transmission Master Repair Kits

Upgrade your Riviera with one of our 2 best-selling Transmission Master Repair Kits.

ATP – ATP Automatic Transmission Master Repair Kit Plus, JMS-9 (Part No.JMS-9)

ATP Automatic Transmission Master Repair Kit Plus, JMS-9

from

$393.99
ATP Master Repair Kit Plus contains friction And steel clutch plates, gaskets, seals, o-rings, sealing rings, sump filter, And commonly replaced bushings required to high quality transmission rebuilding.
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ATP – ATP Automatic Transmission Master Repair Kit, JM-9 (Part No.JM-9)

ATP Automatic Transmission Master Repair Kit, JM-9

from

$269.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Master Repair Kits come with friction And steel clutch plates, seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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Top-Quality Transmission Rebuild Kits for 1966 Buick Rivieras

Choose a high-quality OEM or aftermarket Transmission Rebuild Kit for Buick Rivieras and enjoy top-notch performance from $81.99.

ATP – ATP Automatic Transmission Banner Repair Kit, JM-10 (Part No.JM-10)

ATP Automatic Transmission Banner Repair Kit, JM-10

from

$179.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Automatic Transmission Banner Repair Kits come with friction plates, seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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ATP – ATP Automatic Transmission Overhaul Kit, JGS-52 (Part No.JGS-52)

ATP Automatic Transmission Overhaul Kit, JGS-52

from

$81.99
When it’s time to rebuild an automatic transmission, it’s a big job. ATP Overhaul Kits come with seals, o-rings, gaskets, And sealing rings. ATP components are engineered to fit And function just like the original parts for long life And durability.
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FAQs for 1966 Buick Riviera Automatic Transmission Kits

What are the best-selling Automatic Transmission Kits for 1966 Buick Rivieras?

Out of 8 Automatic Transmission Kits that fit 1966 Buick Rivieras, the following parts are the top sellers:

What’s the price range for 1966 Buick Riviera Automatic Transmission Kits?

The prices of Automatic Transmission Kits for the 1966 Buick Riviera range from $77.19 up to $519.99 for the most premium parts.

What is the average price of an Automatic Transmission Kit for a 1966 Buick Riviera?

The average price for Automatic Transmission Kits for the 1966 Buick Riviera is $260.39. Keep in mind the variety of part types within our Automatic Transmission Kit 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 Kits for other Buick Riviera model years?

Yes, we carry Automatic Transmission Kits for 22 model years of Buick Rivieras between 1965 and 1997. The following model years are the most popular for Automatic Transmission Kit purchases: 1981, 1980, 1979, 1978, 1977, 1976, 1975, 1974, and 1973.

What are the cheapest Automatic Transmission Kits for my 1966 Buick Riviera?

The cheapest 1966 Buick Riviera Automatic Transmission Kits we carry are:

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

What types of Automatic Transmission Kits do you sell for my 1966 Buick Riviera?

As of 8/2/26, these are some of the most in-demand types of Automatic Transmission Kits for a 1966 Buick Riviera:

Can I get help with 1966 Buick Riviera Automatic Transmission Kit orders?

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

What is your return policy for Buick Riviera Automatic Transmission Kits?

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