2003 GMC Sierra 1500 Transmission Parts

Essential 2003 GMC Sierra 1500 Transmission Parts

ATP – Automatic Transmission Shifter Cable (Part No.Y-1287)

Automatic Transmission Shifter Cable

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$113.99
Automatic Transmission Shifter Cable

Dorman – Help – Torque Convertor Bolts (Part No.14099)

Torque Convertor Bolts

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$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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ATP – AT MSTR REP KIT PLUS (Part No.JMS-25)

AT MSTR REP KIT PLUS

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$526.99
AT MSTR REP KIT PLUS

Dorman – Transmission Oil Pan: Direct Fit, Steel, 12 Quart (Part No.265-811)

Transmission Oil Pan: Direct Fit, Steel, 12 Quart

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$54.99
This replacement transmission oil pan is a direct replacement for a damaged original equipment transmission pan. Made of quality materials, it’s designed for reliable, leak-free service.

Product Features:
  • Ideal replacement – this transmission oil pan matches the fit and function of the original pan for a trouble-free replacement
  • Durable construction – this transmission oil pan is made of quality materials for durability and leak-free performance
  • Cost-effective solution – offers original equipment performance at competitive price
  • Quality tested – this part has undergone try-on testing to ensure a quality fit
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ATP – AT SHIFT KIT (Part No.SK-3)

AT SHIFT KIT

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$102.99
AT SHIFT KIT

ARP Auto Racing – For Use With General Motors, 0.590"L Under Head, 10Mm X 1.5 Thread, With Washers (Part No.230-7305)

For Use With General Motors, 0.590"L Under Head, 10Mm X 1.5 Thread, With Washers

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$27.99
You can forget about the problem of shearing a torque converter bolt after you install these super strong 200,000 PSI gems. They are designed for each specific application and provide the optimum grip. Kits come with hardened parallel ground washers.

Product Features:
  • Super Strong, Rated At 200,000 PSI
  • Kits Come With Hardened Parallel Ground Washers
  • Made In USA
  • 0.590″ Underhead Length
  • M10 X 1.5 Thread Size
  • Set of 6
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GM Genuine Parts – Automatic Transmission Park Position Switch (Part No.23190137)

Automatic Transmission Park Position Switch

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$28.99
GM Genuine Parts Park Position Switches are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Product Features:
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 3 OZ (Part No.82194)

Ultra Grey RTV Silicone Gasket Maker, 3 OZ

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$11.49
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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Driveworks – Taper Bearing Set (Part No.S-A-36)

Taper Bearing Set

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$16.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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ATP – AT OIL PUMP SEAL (Part No.CO-37)

AT OIL PUMP SEAL

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$19.99
AT OIL PUMP SEAL

ATP – AUTO TRANS BAND (Part No.CX-42)

AUTO TRANS BAND

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$33.99
AUTO TRANS BAND

Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)

Transmission Oil Cooler Reinstallation Kit

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$20.79
Provides all necessary components for the proper reinstallation of an Imperial transmission oil cooler.

Product Features:
  • Transmission cooler reinstallation kit
  • Contains part numbers 248001, 226201, 240250 and 4 hose clamps
  • Provides all hardware for reinstallation of Imperial transmission coolers
  • Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
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Carquest – Neutral Safety Switch Connector (Part No.PT5665)

Neutral Safety Switch Connector

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$83.99
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.

Product Features:
  • Our distributor caps are made of high dielectric strength, glass/mineral reinforced polyester resin for less carbon tracking, greater resistance to electrical breakdown, and superior performance
  • Solid brass terminals (where available) make better connections and greater resistance to electrical pitting and corrosion
  • RFI resistors where specified to eliminate radio static and potential ECU-damaging spikes
  • With industry leading expertise, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest – Automatic Transmission Control Solenoid (Part No.S9820)

Automatic Transmission Control Solenoid

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$41.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • BWD is a global manufacturer of emission components, complete quality control is maintained through the manufacturing process from componentry to finished product
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NTK – ABS Wheel Speed Sensor (Part No.AU0137)

ABS Wheel Speed Sensor

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$39.99
Building upon a foundation of premium full-line products established under NGK ignition and NTK oxygen sensor products, NTK’s expansion to technical sensors is part of our ongoing commitment to streamline product types and increase coverage under one premium brand: NTK, The Sensor Specialist. With over 80 years of automotive expertise, NGK’s family of automotive products are driven by extreme dedication to innovation, performance and quality. NTK is the only OE supplier with a full-line of technical sensors in the aftermarket for import and domestic vehicles. Drawing from OE experience, NTK sensors undergo extreme testing conditions that include thermal shock, vibration and OBD verification. NTK sensors are manufactured to ensure a quality that meets or exceeds OE specifications. As new vehicles incorporate connected and automated technologies, trust The Sensor Specialist for full-line market support and OE application technology.

Product Features:
  • NTK ABS Wheel Speed Sensor connectors, mounts and wire lengths are an exact match to OE for worry free installation. Grease, mounting nut and instruction sheet included where applicable.
  • NTK’s Wheel Speed Sensors are manufactured to operational performance standards to meet or exceed OE fit, form and function. Manufactured with weather pack connectors to prevent dirt and moisture contamination.
  • The ABS ECU monitors the Wheel Speed Sensors rotational speed for anti-lock brake function, stability control and traction control. The ABS sensors report the speed of all four wheels to the ECU to determine if the wheels are locking up.
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Carquest Premium – Automatic Transmission Fluid Temperature Sensor (Part No.WTA1322)

Automatic Transmission Fluid Temperature Sensor

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$19.99
CARQUEST premium engine management products provide the right automatic transmission speed sensor for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions. Designed to meet OE quali

Product Features:
  • Lifecycle tested to meet or exceed OE specifications
  • Direct OE replacement
  • High strength thermoplastic is resistant to shock, temperature and chemicals. Also protects internal components from moisture and contaminants.
  • Global coverage for import and/or domestic applications.
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ATP – AT DPSTK TUBE SEAL (Part No.SO-35)

AT DPSTK TUBE SEAL

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$5.99
AT DPSTK TUBE SEAL

USA Standard Gear – TCaseShiftForkInsert (Part No.71072)

TCaseShiftForkInsert

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$3.99
TCaseShiftForkInsert

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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Dorman – Transmission Shift Interlock Solenoid (Part No.924-977)

Transmission Shift Interlock Solenoid

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$29.99
This shift interlock solenoid is designed to match the fit and function of the original solenoid on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this shift interlock solenoid is designed to match the fit and function of the original solenoid on specified vehicles
  • Ideal solution – this solenoid is a reliable replacement for an original part that is damaged or has failed due to fatigue, excessive heat or electrical current
  • Durable construction – this solenoid is made from quality components to ensure reliable performance and a 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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Dorman – Transmission Oil Cooler Line (Part No.624-710)

Transmission Oil Cooler Line

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$31.99
This automatic transmission oil cooler hose assembly is designed to match the fit and function of an original assembly. It is engineered from durable components as a reliable replacement for leaking or damaged lines on specified vehicles.

Product Features:
  • Direct replacement – this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years
  • Ideal solution – engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage
  • Durable construction – made of quality materials for reliable performance and 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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ATP – AT OIL PUMP GASKET (Part No.SG-40)

AT OIL PUMP GASKET

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$10.99
AT OIL PUMP GASKET

Dorman – Help – Shift Lever Arm (Part No.74124)

Shift Lever Arm

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$14.29
This automatic transmission shifter cable lever is designed to match the fit and function of the original lever on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this automatic transmission shifter cable lever is designed to match the fit and function of the original lever
  • Restores functionality – reliable replacement for an original part that has failed due to corrosion
  • 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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ACDelco – AT Rear Seal (Part No.J5071366796ACD)

AT Rear Seal

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$29.65
AT Rear Seal

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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Driveworks – Manual Transmission Output Shaft Seal (Part No.S-4528-N)

Manual Transmission Output Shaft Seal

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$8.49
Product Features:
  • Brand may vary by location
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ACDelco – Neutral Safety Switc (Part No.J4050351665ACD)

Neutral Safety Switc

from

$142.24
Neutral Safety Switc

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

AT Neutral Safety Sw

from

$77.52
AT Neutral Safety Sw

Popular 2003 GMC Sierra 1500 Transmission Parts Categories

2003 GMC Sierra 1500 Transmission Parts

You count on your 2003 GMC Sierra 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 215 Transmission Parts ranging in price from $3.49 to $3,074.99, you’re sure to find everything you need for your 2003 GMC Sierra 1500.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 29 different brands like Dorman, Imperial, and Permatex. 2003 GMC Sierra 1500 Transmission Parts start as low as $3.49!

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 19,065 extensive product reviews on 2003 GMC Sierra 1500 Transmission Parts. Some of the top-rated Transmission Parts products we carry are Transmission Oil Pan Gasket with 4.6 stars and Maxi-Kool® XL Transmission Oil Cooler with 4.4 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 GMC Sierra 1500 below to get started!

Top-Rated Transmission Parts Brands For Your 2003 GMC Sierra 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 GMC Sierra 1500 running right for years to come. In our inventory you’ll find brands like Dorman, Imperial, Permatex, and even more.

Popular B & M Transmission Parts

You’ll find popular B & M brand products across Gear Shifters and Cables. All are waiting to get your 2003 GMC Sierra 1500 back on the road. Some of the top-rated B & M products in these categories are:

Top-Rated ATP Transmission Parts


If ATP are what you’re looking for, our inventory holds plenty. We stock ATP brand Transmission Parts for your 2003 GMC Sierra 1500, and some of our most reviewed ATP parts include:
Automatic Transmission Shifter Cable
from $92.99
(253)
Automatic Transmission Shifter Cable
Transmission Shift Cables
Automatic Transmission Shifter Cable
from $83.99
(13)
Automatic Transmission Shifter Cable
Automatic Transmission Shifter Cable Kits
AT DPSTK TUBE SEAL
from $5.99
(7)
AT DPSTK TUBE SEAL
Automatic Transmission Dipstick Seals

FAQs for 2003 GMC Sierra 1500 Transmission Parts

What are the most purchased Transmission Parts for the 2003 GMC Sierra 1500?

Out of 215 Transmission Parts for the 2003 GMC Sierra 1500, the most popular in our inventory are:
Ultra Grey RTV Silicone Gasket Maker, 3 OZ
from $11.49
(95)
Ultra Grey RTV Silicone Gasket Maker, 3 OZ
Transmission Pan Gaskets
Mounting Kit System
from $11.49
(27)
Mounting Kit System
Transmission Oil Cooler Fittings
High Performance Transmission Oil Cooler
from $81.99
(48)
High Performance Transmission Oil Cooler
OE Transmission Coolers

What are the top-rated 2003 GMC Sierra 1500 Transmission Parts?

Top-rated Transmission Parts for your 2003 GMC Sierra 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”
Maxi-Kool® XL Transmission Oil Cooler
from $81.99
(31)
Maxi-Kool® XL Transmission Oil Cooler
“Physical mounting straight forward (depends on your vehicle). This is the third one I’ve installed in towing vehicles, this year. Actually made by Ha”
Econo-Kool® Transmission Oil Cooler
from $54.99
(30)
Econo-Kool® Transmission Oil Cooler
“Didn’t want to spend the money for the oem part. This universal part fit in perfectly and was an easy install.”