2003 Hummer H2 Transmission Parts

Essential 2003 Hummer H2 Transmission Parts

ATP – Shift Solenoid (Part No.CE-14)

Shift Solenoid

from

$52.99
Shift Solenoid

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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Carquest Premium – Multi Purpose Relay (Part No.RAA1241)

Multi Purpose Relay

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$21.99
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.
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ACDelco – Black Multi-Purpose Relay (Part No.D1780C)

Black Multi-Purpose Relay

from

$16.49
ACDelco GM Original Equipment Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment 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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Dorman – Drain Plug – M12-1.75 Pilot Point (Part No.65416)

Drain Plug - M12-1.75 Pilot Point

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$9.49
This drain plug is designed to match the dimensions and function of the original plug on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this drain plug matches the dimensions and function of the factory hardware on specified vehicle years, makes and models
  • Ideal solution – this drain plug is a reliable replacement for an original part that is damaged or lost during service
  • Durable construction – this part is made from quality materials to ensure reliable performance and a long service life
  • Quality assured – backed by a team of product experts in the United States and more than a century of automotive experience
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Carquest Premium – Automatic Transmission Pressure Control Solenoid (Part No.TCA1008)

Automatic Transmission Pressure Control Solenoid

from

$36.99
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.
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Carquest Premium – Air Bag Connector (Part No.PTA1693)

Air Bag Connector

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$58.99
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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Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Tapered Roller Bearing

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$16.99
Product Features:
  • Brand may vary by location
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Mahle – Oil Dipstick Seal (Part No.A1120666332MAH)

Oil Dipstick Seal

from

$2.60
Oil Dipstick Seal

ACDelco – Shift Interlock Sole (Part No.J4081587082ACD)

Shift Interlock Sole

from

$171.21
Shift Interlock Sole

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

Trans Case Output Sh

from

$26.73
Trans Case Output Sh

Driveworks – Auto Transmission Output Shaft Seal (Part No.S-4934)

Auto Transmission Output Shaft Seal

from

$8.49
Product Features:
  • Brand may vary by location
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Carquest – Neutral Safety Switch Connector (Part No.PT5665)

Neutral Safety Switch Connector

from

$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 Premium – Vehicle Speed Sensor (Part No.SBA3658)

Vehicle Speed Sensor

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$42.99
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.
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ATP – ATHARNESS VSS REPR (Part No.CE-10)

ATHARNESS VSS REPR

from

$208.99
ATHARNESS VSS REPR

Energy Suspension – Transmission Mount (Part No.3.1129G)

Transmission Mount

from

$87.99
A true performance application component for cars, trucks, hot rods, 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.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
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ATP – AT CONTR SOLENOID (Part No.JE-8)

AT CONTR SOLENOID

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$66.99
AT CONTR SOLENOID

Driveworks – Taper Bearing Cup (Part No.S-M-88010)

Taper Bearing Cup

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$5.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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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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Dorman – Help – Shift Linkage Bushing (Part No.14055)

Shift Linkage Bushing

from

$16.49
Fixing a broken automatic transmission shift cable usually requires replacing the entire cable assembly. This 2-piece assortment of Dorman OE FIX bushings saves expense by allowing the replacement of just the failed bushing.

Product Features:
  • Convenient solution – this shift cable bushing assortment 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 assortment is vehicle-specific and precision-engineered for specified General Motors, Chrysler and Saab 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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Motive Gear – Axle Shaft Seal (Part No.710281)

Axle Shaft Seal

from

$16.99
Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o
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Driveworks – Oil Seal (Part No.S-4950)

Oil Seal

from

$4.29
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Carquest – Air Charge Temperature Sensor Connector (Part No.PT187)

Air Charge Temperature Sensor Connector

from

$40.99
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 control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
  • Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
  • Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
  • High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
  • Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
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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
See More

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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National – Multi Purpose Seal (Part No.4950)

Multi Purpose Seal

from

$6.99
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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National – Multi Purpose Seal (Part No.8792S)

Multi Purpose Seal

from

$6.99
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
See More

Popular 2003 Hummer H2 Transmission Parts Categories

2003 Hummer H2 Transmission Parts

You count on your 2003 Hummer H2 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 85 Transmission Parts ranging in price from $2.49 to $2,189.00, you’re sure to find everything you need for your 2003 Hummer H2.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 25 different brands like Dorman, National, and Anchor. 2003 Hummer H2 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 268 extensive product reviews on 2003 Hummer H2 Transmission Parts. Some of the top-rated Transmission Parts products we carry are Multi Purpose Seal with 4.4 stars and Automatic Transmission Remanufactured Torque Converter with 4.7 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 Hummer H2 below to get started!

Top-Rated Transmission Parts Brands For Your 2003 Hummer H2

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 Hummer H2 running right for years to come. In our inventory you’ll find brands like Dorman, National, Anchor, 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 Hummer H2 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 Hummer H2, and some of our most reviewed Dorman parts include:
Shift Linkage Bushing
from $16.49
(32)
Shift Linkage Bushing
Automatic Transmission Shift Linkage Bushings
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 Hummer H2 Transmission Parts

What are the most purchased Transmission Parts for the 2003 Hummer H2?

Out of 85 Transmission Parts for the 2003 Hummer H2, the most popular in our inventory are:
Transmission Mount: Rear, 1 Piece
from $23.49
(20)
Transmission Mount: Rear, 1 Piece
Transmission Mounts
Transmission Oil Pan Gasket
from $10.99
(46)
Transmission Oil Pan Gasket
Transmission Oil Pan Gaskets
Neutral Safety Switch
from $48.05
(13)
Neutral Safety Switch
Back Up and Neutral Safety Switches

What are the top-rated 2003 Hummer H2 Transmission Parts?

Top-rated Transmission Parts for your 2003 Hummer H2 based on customer reviews/ratings are:
Multi Purpose Seal
from $6.99
(20)
Multi Purpose Seal
“The product works well”
Multi Purpose Seal
from $12.79
(13)
Multi Purpose Seal
“Fixed my leak”