2021 Chevrolet Express 3500 Transmission Parts

Essential 2021 Chevrolet Express 3500 Transmission Parts

ATP – A/T FLYWHEEL BOLT (Part No.ZX-2036)

A/T FLYWHEEL BOLT

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$12.99
A/T FLYWHEEL BOLT

Dorman – Help – Flexplate Mounting Bolts (Part No.14112)

Flexplate Mounting Bolts

from

$18.29
Servicing or installing a flywheel or flexplate on a General Motors LS engine with a manual or automatic transmission? Ensure a truly professional repair by replacing all the worn or broken factory bolts with this convenient package of six direct-replacement 11mm x 1.5 mounting bolts. Coated with clear zinc for corrosion resistance, with threadlocker already applied, they’re precision-manufactured from strong steel for long service life.

Product Features:
  • Direct replacement – these six 11mm x 1.5 flywheel bolts match the fit, function and performance of the factory fasteners
  • Convenient package – package contains six bolts, the exact quantity needed for a complete repair
  • Durable construction – coated with clear zinc for corrosion resistance, with threadlocker already applied, and made from strong steel for long service life
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread (Part No.800-604)

Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread

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$8.99
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
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Dorman – Oil Cooler Line Connector With A 3/8-18 in. Thread (Part No.800-603)

Oil Cooler Line Connector With A 3/8-18 in. Thread

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$14.49
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.

Product Features:
  • Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
  • Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
  • Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
  • Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
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Mahle – Oil Dipstick Seal (Part No.A1120666332MAH)

Oil Dipstick Seal

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$2.60
Oil Dipstick Seal

ACDelco – AT Neutral Safety Sw (Part No.J4050485851ACD)

AT Neutral Safety Sw

from

$77.52
AT Neutral Safety Sw

ACDelco – Neutral Safety Switc (Part No.J4050351665ACD)

Neutral Safety Switc

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$142.24
Neutral Safety Switc

ATP – AT EXT HOUSING SEAL (Part No.JO-57)

AT EXT HOUSING SEAL

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$7.99
AT EXT HOUSING SEAL

National – Multi Purpose Seal (Part No.4934)

Multi Purpose Seal

from

$14.79
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -20°F to 300°F / -29°C to 49°C
  • Resistance to EP lubricants
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
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Driveworks – Oil Seal (Part No.S-4333N)

Oil Seal

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$11.49
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Anchor – Transmission Mount: Rear, 1 Piece (Part No.3098)

Transmission Mount: Rear, 1 Piece

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$45.49
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CHEV 03-20; GMC 03-20;. Please verify your application.

Product Features:
  • MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
  • MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
  • HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
  • SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
  • HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
  • For Years: 2003-2020
  • Weight approx: 2 Lbs
  • STUD: M10x1.5
  • STUD LENGTH: 2.57 INCH / 64 MM
  • THREAD LENGTH: 0.76 INCH / 19 MM
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Anchor – Transmission Mount: Rear, 1 Piece (Part No.2817)

Transmission Mount: Rear, 1 Piece

from

$17.29
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CHEV 94-02; GMC 94-03; PONT 94-97;. Please verify your application.

Product Features:
  • MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
  • MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
  • HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
  • SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
  • HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
  • For Years: 1994-2003
  • Weight approx: 2 Lbs
  • MATERIAL: RUBBER, STEEL
  • HEIGHT: 1.86 INCH / 47.24 MM
  • STUD: M10x1.5 1.15 INCH / 29.21 MM
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Anchor – Transmission Mount: Rear, 1 Piece (Part No.3278)

Transmission Mount: Rear, 1 Piece

from

$52.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CADI 21-22; CHEV 11-22; GMC 11-22;. Please verify your application.

Product Features:
  • MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
  • MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
  • HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
  • SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
  • HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
  • For Years: 2011-2022
  • Weight approx: 2 Lbs
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ACDelco – AT Valve Body Separa (Part No.J5028745013ACD)

AT Valve Body Separa

from

$33.03
AT Valve Body Separa

Dorman – Help – Transmission Oil Cooler Seal (Part No.66219)

Transmission Oil Cooler Seal

from

$11.49
This Dorman Automatic Transmission Oil Cooler Gasket eliminates leaks where the oil cooler line connects to the transmission. Gasket may break down over time, causing leaks, and should be replaced any time the oil cooler line and transmission are separated.

Product Features:
  • Durable construction – rubber over steel construction creates a positive seal and retains its shape
  • Direct replacement – fits and functions like original equipment
  • Easy to install – direct-fit, no special tools required
  • Vehicle tested – has undergone on-vehicle testing to ensure proper fit and performance
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Dorman – Help – Shift Cable Bushing Kit (Part No.14104)

Shift Cable Bushing Kit

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$21.99
Fixing a broken automatic transmission shift cable usually requires replacing the entire cable assembly. This Dorman OE FIX shift cable bushing kit saves expense by allowing the replacement of just the failed bushing..

Product Features:
  • Convenient solution – this shift cable bushing kit directly replaces a broken bushing and eliminates the need to replace the entire cable assembly.
  • Save time and money – save the expense and significant installation time of replacing an entire cable assembly
  • Ensure fit – this bushing kit is vehicle-specific and precision-engineered for specified General Motors and Chrysler models and years
  • Trustworthy quality – designed in the United States and backed by more than a century of automotive aftermarket excellence
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ATP – REUSABLE AT PAN GSKT (Part No.JG-142)

REUSABLE AT PAN GSKT

from

$36.99
REUSABLE AT PAN GSKT

Permatex – The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ (Part No.34328)

The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ

from

$17.49
Permatex’s The Right Stuff 90 Minute Series offers the fastest return to service in a in just 90 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 90 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 90 minutes
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

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$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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ACDelco – AT Pan Gasket (Part No.J5040577055ACD)

AT Pan Gasket

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$71.79
AT Pan Gasket

ATP – AT OIL PAN GASKET (Part No.SG-30)

AT OIL PAN GASKET

from

$13.99
AT OIL PAN GASKET

ACDelco – AT Pan Gasket (Part No.J5040366488ACD)

AT Pan Gasket

from

$37.47
AT Pan Gasket

Felpro – Transmission Oil Pan Gasket (Part No.TOS 18663)

Transmission Oil Pan Gasket

from

$10.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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2021 Chevrolet Express 3500 Transmission Parts

You count on your 2021 Chevrolet Express 3500 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Transmission Parts. With 11 Transmission Parts ranging in price from $2.60 to $77.52, you’re sure to find everything you need for your 2021 Chevrolet Express 3500.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 5 different brands like Dorman, ACDelco, and Anchor. 2021 Chevrolet Express 3500 Transmission Parts start as low as $2.60!

One of the best ways to find top quality OEM or aftermarket Transmission Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 30 extensive product reviews on 2021 Chevrolet Express 3500 Transmission Parts.

Did we mention you can order your Transmission Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Transmission Parts inventory for your 2021 Chevrolet Express 3500 below to get started!

Top-Rated Transmission Parts Brands For Your 2021 Chevrolet Express 3500

Trusted Transmission Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2021 Chevrolet Express 3500 running right for years to come. In our inventory you’ll find brands like Dorman, ACDelco, Anchor, and even more.

Popular Dorman Transmission Parts

You’ll find popular Dorman brand products across Transmission Connectors. All are waiting to get your 2021 Chevrolet Express 3500 back on the road. Some of the top-rated Dorman products in these categories are:
Transmission Line Connector - 3/8 in OD Tube x 9/16-18 UNF Thread
from $8.99
(5)
Transmission Line Connector – 3/8 in OD Tube x 9/16-18 UNF Thread
Automatic Transmission Line Connectors

FAQs for 2021 Chevrolet Express 3500 Transmission Parts

What are the most purchased Transmission Parts for the 2021 Chevrolet Express 3500?

Out of 11 Transmission Parts for the 2021 Chevrolet Express 3500, the most popular in our inventory are:
Shift Cable Bushing Kit
from $21.99
This product is not rated
Shift Cable Bushing Kit
Automatic Transmission Shift Linkage Bushings
Transmission Oil Cooler Seal
from $11.49
This product is not rated
Transmission Oil Cooler Seal
Automatic Transmission Oil Cooler Gaskets
AT Pan Gasket
from $37.47
This product is not rated
AT Pan Gasket
Transmission Oil Pan Gaskets