Chevrolet K20 Suburban Performance Transmissions

Your One-Stop Shop For Trusted Chevrolet K20 Suburban Performance Transmissions

If you’re in search of Chevrolet K20 Suburban Performance Transmissions aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 10 Performance Transmissions from top brands with prices ranging from $72.59 to $459.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Transmissions for your Chevrolet K20 Suburban.

And don’t forget to read customer reviews across all Performance Transmissions categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Transmissions have to cost top dollar, and we prove it. Browse our top Chevrolet K20 Suburban Performance Transmissions below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Chevrolet K20 Suburban Performance Transmissions

Mr. Gasket – Mr. Gasket Transmission Oil Pan – Polished Aluminum, 9791G (Part No.9791G)

Mr. Gasket Transmission Oil Pan - Polished Aluminum, 9791G

from

$141.99
These pans are offered in stock depth or deep with extra capacity and available in both steel and aluminum to fit your specific needs. Each kit Includes the drain plug, gasket and hardware.
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B & M – B & M Transmission Cast Deep Pan, Brushed Finish Th-350, 30280 (Part No.30280)

B & M Transmission Cast Deep Pan, Brushed Finish Th-350, 30280

from

$311.99
Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 3-quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter, filter extension, pan gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation.
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B & M – B & M Chrome Deep Th 400 Transmission Pan, 20289 (Part No.20289)

B & M Chrome Deep Th 400 Transmission Pan, 20289

from

$138.99
Our Hi-Tek deep transmission pans are constructed from heavy gauge stamped steel and are designed and formed with rows of strengthening ribs adding structural rigidity. The pans are then finished off with high quality chrome plating for durable good looks. The deep pan design increases fluid capacity by 2-quarts over the stock O.E. pan, resulting in better heat dissipation, which helps lower temperatures prolonging the life of your transmission, trans fluid and corresponding components. Other features for this popular pan include a pan gasket, filter extension and drain port with magnetic drain plug for clean and easy servicing. Includes detailed instructions with all necessary hardware for an easy at home installation. Note: Does not fit Jeep CJ7 transmission.
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B & M – B & M Transmission Cast Deep Pan, Brushed Finish – Th400, 20280 (Part No.20280)

B & M Transmission Cast Deep Pan, Brushed Finish - Th400, 20280

from

$299.99
Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 2-quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter extension, pan gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation.
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B & M – B & M Transpak For 65-87 Th400 Transmission, 20228 (Part No.20228)

B & M Transpak For 65-87 Th400 Transmission, 20228

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 1965-1987 GM TH400/375 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.
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Lakewood – Lakewood Trans Mount: Urethane-Chevy, 24350 (Part No.24350)

Lakewood Trans Mount: Urethane-Chevy, 24350

from

$103.99
Constructed of durable polyurethane to handle the stress oh high horsepower. Absorbs vibration and lasts longer than rubber Features unique built-in safety lock to keep from separating under high torque loads. Ideal for use on street or strip applications. Complete with grade-8 mounting hardware.
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Energy Suspension – Energy Suspension Transmission Mount, 3.1106R (Part No.3.1106R)

Energy Suspension Transmission Mount, 3.1106R

from

$90.99
A true performance application component for cars, trucks, hot rods. For racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.
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Mr. Gasket – Mr. Gasket Solid Engine Motor Mounts-Short, 3671 (Part No.3671)

Mr. Gasket Solid Engine Motor Mounts-Short, 3671

from

$72.59
Mr. Gasket Solid Steel Motor Mounts are recommended only for competition applications. This .180 inch thick, zinc dichromate plated solid mounts do not have the flexing present in rubber or even polyurethane engine mounts. This prevents lateral engine movement or twisting in high horsepower and torque applications. Nor will steel mounts break as easily as stock rubber mounts can. Engine movement in applications like this can cause contact of engine components into places they do not need to be (like headers hitting the frame of the car). Also engine twisting can cause severe drivetrain misalignment affecting shifting or even power transmission to the ground. However, without the insulative effect of rubber, vibration can be substantial and thus solid mounts are not recommended for the street.
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Mr. Gasket – Mr. Gasket A/Tdipstick, 9703G (Part No.9703G)

Mr. Gasket A/Tdipstick, 9703G

from

$101.99
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.
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B & M – B & M Master Overhaul Kit For Powerglide Transmission, 21040 (Part No.21040)

B & M Master Overhaul Kit For Powerglide Transmission, 21040

from

$459.99
The B&M Master Racing Overhaul Kit includes all gaskets, seals, bushings and high performance friction materials. No transbrake body gaskets or instructions included.
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Performance Transmissions Brands You Can Trust For Your Chevrolet K20 Suburban

4 trusted brands of Performance Transmissions line our shelves, ready to help keep your Chevrolet K20 Suburban running smooth. Below are some of the most popular brands and their top Performance Transmissions offerings:

Most Purchased Chevrolet K20 Suburban Performance Transmissions from Energy Suspension

When you buy the most frequently purchased Energy Suspension brand Performance Transmissions, you can be confident it will be the right part for your Chevrolet K20 Suburban. Here are the Energy Suspension Performance Transmissions Advanced Auto customers buy the most:
Energy Suspension Transmission Mount, 3.1106R
from $90.99
This product is not rated
Energy Suspension Transmission Mount, 3.1106R
Performance Engine and Transmission Mounts
Lakewood Trans Mount: Urethane-Chevy, 24350
from $103.99
This product is not rated
Lakewood Trans Mount: Urethane-Chevy, 24350
Performance Engine and Transmission Mounts
Mr. Gasket Transmission Oil Pan - Polished Aluminum, 9791G
from $141.99
This product is not rated
Mr. Gasket Transmission Oil Pan – Polished Aluminum, 9791G
Performance Transmission Pan

FAQs for Chevrolet K20 Suburban Performance Transmissions

What are the most purchased Performance Transmissions for the Chevrolet K20 Suburban?

Out of 10 Performance Transmissions for the Chevrolet K20 Suburban, the most popular in our inventory are:
Energy Suspension Transmission Mount, 3.1106R
from $90.99
This product is not rated
Energy Suspension Transmission Mount, 3.1106R
Performance Engine and Transmission Mounts
Lakewood Trans Mount: Urethane-Chevy, 24350
from $103.99
This product is not rated
Lakewood Trans Mount: Urethane-Chevy, 24350
Performance Engine and Transmission Mounts
Mr. Gasket Solid Engine Motor Mounts-Short, 3671
from $72.59
This product is not rated
Mr. Gasket Solid Engine Motor Mounts-Short, 3671
Performance Engine and Transmission Mounts