2003 Chevrolet Avalanche 1500 Transmission Parts

Essential 2003 Chevrolet Avalanche 1500 Transmission Parts

National – Bearings (Part No.M802048)

Bearings

from

$23.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Carquest Premium – Repair Harness (Part No.PTC1522)

Repair Harness

from

$109.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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ACDelco – AT Shift Solenoid (Part No.J4006209918ACD)

AT Shift Solenoid

from

$25.16
AT Shift Solenoid

Dorman – 4 Wire Multipurpose Connector (Part No.645-578)

4 Wire Multipurpose Connector

from

$62.99
This neutral safety switch connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this neutral safety switch connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or 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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ATP – Shift Solenoid (Part No.CE-14)

Shift Solenoid

from

$52.99
Shift Solenoid

Dorman – Shifter Select Lever (Part No.905-106)

Shifter Select Lever

from

$83.99
Shifter feeling shiftless lately? This replacement automatic transmission shift lever directly restores operation to catch gears effectively, while retaining original equipment look and feel.

Product Features:
  • Direct replacement – this shift lever matches the look and function of the original equipment shifter on specific vehicle model years, makes and models
  • Effective fix – replacement restores proper shifting for safe driving
  • Matching appearance – specifically designed to provide seamless replacement
  • Trustworthy quality – backed by team of engineers and inspectors in the United States
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Permatex – High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ

from

$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Pro-King – Automatic Transmission Remanufactured Torque Converter (Part No.GM92)

Automatic Transmission Remanufactured Torque Converter

from

$179.99
Remanufactured using industry-leading techniques to assure enhanced torque performance and extended life. Each unit is harmonically balanced and leak tested with any inherent OE weaknesses corrected. Pro-King torque converters are subject to random ISO 9001 quality tests before leaving the factory.

Product Features:
  • Fluid Balanced
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Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Tapered Roller Bearing

from

$16.99
Product Features:
  • Brand may vary by location
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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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National – Multi Purpose Seal (Part No.4583)

Multi Purpose Seal

from

$12.79
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:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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Dorman – Help – Torque Convertor Bolts (Part No.14099)

Torque Convertor Bolts

from

$9.49
This torque converter hardware is designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this torque converter hardware is designed to match the fit and function of the original hardware on specified vehicles
  • Ideal solution – this hardware is a reliable replacement for original hardware that has failed due to fatigue
  • Durable construction – this hardware 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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Anchor – Transmission Mount: Rear, 1 Piece (Part No.2811)

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 CADI 00-20; CHEV 91-21; GMC 91-21;. 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: 1991-2021
  • Weight approx: 2 Lbs
  • MATERIAL: RUBBER, STEEL
  • HEIGHT: 2.06 INCH / 52.32 MM
  • STUD: M10x1.5 1.15 INCH / 29.21 MM
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ACDelco – Axle Differential Be (Part No.K4011415668ACD)

Axle Differential Be

from

$115.84
Axle Differential Be

National – Bearings (Part No.B-5020)

Bearings

from

$25.49
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Available in both caged design and full complement
  • Industry leading coverage
  • Professional technicians know they can depend on National
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

from

$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 Output Shaft Seal (Part No.J2557626265ACD)

AT Output Shaft Seal

from

$11.94
AT Output Shaft Seal

Dorman – Gearshift Control Cable (Part No.905-646)

Gearshift Control Cable

from

$79.99
This automatic transmission shifter cable matches the fit and function of the original equipment cable to ensure a trustworthy repair. Made of quality materials, it has been extensively tested to ensure a long service life.

Product Features:
  • Direct replacement – this automatic transmission shifter cable matches the fit and function of the original equipment part
  • Durable materials – this shifter cable is manufactured from quality materials for durability
  • Cost-effective solution – offers original equipment quality at competitive price
  • Quality tested – this part has undergone extensive testing to ensure a quality fit and reliable performance
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Dorman – Help – Shift Lever Boot (Part No.47106CD)

Shift Lever Boot

from

$28.49
This transmission shift boot matches the fit and function of the original equipment boot that as become damaged or missing. Made of quality materials, this boot is designed for durability and has been validated for a proper fit.

Product Features:
  • Ideal replacement – this transmission shift boot matches the fit and function of the original equipment boot for specific makes and models
  • Durable materials – this shift boot is manufactured from quality materials for durability
  • Cost-effective solution – offers original equipment quality at competitive price
  • Quality tested – this part has undergone try-on testing to ensure a quality fit
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Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242009)

Econo-Kool® Transmission Oil Cooler

from

$39.99
Product Features:
  • Imperial Econo-Kool« tube and fin transmission cooler
  • Size: 3/4″ x 5″ x 12-1/2″
  • Sub-compact to compact cars
  • GVWR up to 12,000 lbs.
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
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ATP – ATP Automatic Transmission Control Solenoid (Lock-Up) (Part No.CE-1)

ATP Automatic Transmission Control Solenoid (Lock-Up)

from

$61.99
ATP Automatic Transmission Control Solenoid (Lock-Up)

Tech Smart – Automatic Transmission Pressure Switch Manifold (Part No.M14001)

Automatic Transmission Pressure Switch Manifold

from

$73.99
Qualities that have made SMP an industry leader for more than 95 years, innovation, engineering expertise, superior quality, meticulous testing, unmatched customer service, competitive pricing, and brand integrity, are at the heart of every TechSmart part.

Product Features:
  • Direct-fit replacement for ease of installation
  • Once installed, the OE-match switch accurately monitors fluid pressure and communicates with PCM to adjust line pressure, shift solenoid operation, and torque converter clutch operation for restored drivability and prolonged transmission life
  • Extensively tested to OE specifications to ensure superior performance and long service life
  • All TechSmart® parts meet or exceed OE performance, providing today’s technician with the quality parts needed to get the job done right, the first time
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ATP – AT SHIFT KIT (Part No.SK-3)

AT SHIFT KIT

from

$102.99
AT SHIFT KIT

SKF – Trans Case Output Sh (Part No.J712145761SKF)

Trans Case Output Sh

from

$26.73
Trans Case Output Sh

Dorman – GM Splash Shield Retainer (Part No.963-405D)

GM Splash Shield Retainer

from

$4.49
Constructed of quality materials, this multi-purpose retainer provides the same function and versatility as the original equipment retainer ensuring long service life.

Product Features:
  • Ideal replacement – this retainer matches the fit and function of the original equipment retainer for this vehicle application
  • Quality material – this retainer is made of durable material for long-lasting service
  • Versatile design – this retainer is suitable for a variety of automotive uses
  • Excellent value – this part offers original equipment quality at a competitive cost
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Pro-King – Automatic Transmission Deluxe Rebuild Kit (Part No.KS-112A)

Automatic Transmission Deluxe Rebuild Kit

from

$393.99
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.

Product Features:
  • Include steels, frictions, gaskets, and filter
  • Includes Band and Modulator (if applicable)
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National – Ball Bearing (sold by each) (Part No.110)

Ball Bearing (sold by each)

from

$77.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Popular 2003 Chevrolet Avalanche 1500 Transmission Parts Categories

2003 Chevrolet Avalanche 1500 Transmission Parts

You count on your 2003 Chevrolet Avalanche 1500 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 141 Transmission Parts ranging in price from $2.49 to $3,400.00, you’re sure to find everything you need for your 2003 Chevrolet Avalanche 1500.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 27 different brands like Dorman, Imperial, and National. 2003 Chevrolet Avalanche 1500 Transmission Parts start as low as $2.49!

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 1,350 extensive product reviews on 2003 Chevrolet Avalanche 1500 Transmission Parts. Some of the top-rated Transmission Parts products we carry are Transmission Oil Pan Gasket with 4.6 stars and Automatic Transmission Control Solenoid with 5.0 stars.

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 2003 Chevrolet Avalanche 1500 below to get started!

Top-Rated Transmission Parts Brands For Your 2003 Chevrolet Avalanche 1500

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 2003 Chevrolet Avalanche 1500 running right for years to come. In our inventory you’ll find brands like Dorman, Imperial, National, and even more.

Popular ACDelco Transmission Parts

You’ll find popular ACDelco brand products across Back Up Neutral Safety Parts. All are waiting to get your 2003 Chevrolet Avalanche 1500 back on the road. Some of the top-rated ACDelco products in these categories are:
Black Multi-Purpose Relay
from $16.49
(2)
Black Multi-Purpose Relay
Neutral Safety Relays

Top-Rated Dorman Transmission Parts


If Dorman are what you’re looking for, our inventory holds plenty. We stock Dorman brand Transmission Parts for your 2003 Chevrolet Avalanche 1500, and some of our most reviewed Dorman parts include:
Transmission Oil Cooler Line: Exact Fit, Metal/Rubber
from $31.99
(28)
Transmission Oil Cooler Line: Exact Fit, Metal/Rubber
Transmission Oil Cooler Lines
Transmission Oil Pan: Direct Fit, Steel, 12 Quart
from $54.99
(18)
Transmission Oil Pan: Direct Fit, Steel, 12 Quart
Transmission Oil Pans
Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread
from $6.49
(16)
Transmission Line Connector With 3/8 Tube X 5/8-18 In. Thread
Automatic Transmission Line Connectors

FAQs for 2003 Chevrolet Avalanche 1500 Transmission Parts

What are the most purchased Transmission Parts for the 2003 Chevrolet Avalanche 1500?

Out of 141 Transmission Parts for the 2003 Chevrolet Avalanche 1500, the most popular in our inventory are:
High Performance Transmission Oil Cooler
from $81.99
(48)
High Performance Transmission Oil Cooler
OE Transmission Coolers
Transmission Mount: Rear, 1 Piece
from $23.49
(20)
Transmission Mount: Rear, 1 Piece
Transmission Mounts
Econo-Kool® Transmission Oil Cooler
from $54.99
(30)
Econo-Kool® Transmission Oil Cooler
OE Transmission Coolers

What are the top-rated 2003 Chevrolet Avalanche 1500 Transmission Parts?

Top-rated Transmission Parts for your 2003 Chevrolet Avalanche 1500 based on customer reviews/ratings are:
Transmission Oil Pan Gasket
from $10.99
(46)
Transmission Oil Pan Gasket
“Was easy to install and was a great tune up kit for my transmission on a 96 s10”
Automatic Transmission Control Solenoid
from $31.05
(24)
Automatic Transmission Control Solenoid
“.”
Multi Purpose Seal
from $6.99
(20)
Multi Purpose Seal
“The product works well”