2008 GMC Sierra 2500 HD Transmission Parts

Essential 2008 GMC Sierra 2500 HD Transmission Parts

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

Transmission Oil Cooler Seal

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$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 – 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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ACDelco – AT Cooling Hose Fitt (Part No.J2010575613ACD)

AT Cooling Hose Fitt

from

$33.41
AT Cooling Hose Fitt

Carquest Premium – Automatic Transmission Speed Sensor Connector (Part No.PTA2956)

Automatic Transmission Speed Sensor Connector

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$244.99
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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Dorman – Transmission Line Quick Connector (Part No.800-726)

Transmission Line Quick Connector

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$37.49
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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Permatex – The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ (Part No.34328)

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

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$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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Carquest Premium – Premium Automatic Transmission Pressure Control Solenoid TCC1497 (Part No.TCC1497)

Premium Automatic Transmission Pressure Control Solenoid TCC1497

from

$36.99
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

Product Features:
  • An automatic transmission is a hydraulic multi-speed device that does not require any input from the vehicle operator other than selecting vehicle direction. Hydraulic pressure is controlled by a series of electronic shift solenoids that are commanded by
  • Precision-wound coated copper windings increase product durability and life cycle.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure product reliability, every time.
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Dorman – Transmission Crossmember (Part No.926-980)

Transmission Crossmember

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$229.99
Transmission shifting on its mountings? A rusted transmission support crossmember can allow excess movement in the driveline. Replacing the crossmember while retaining the existing frame restores performance and keeps the vehicle on the road.

Product Features:
  • Direct replacement – this transmission crossmember installs in place of the original frame member to secure the transmission in its place
  • No welding required – this transmission crossmember bolts in place and requires no cutting or welding
  • Quality materials – stamped steel construction with epoxy-coat finish for durability
  • Vehicle tested – has undergone extensive on-vehicle testing to ensure trouble-free fit and installation
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Carquest – Multi Purpose Relay (Part No.83A1004)

Multi Purpose Relay

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$15.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • High-quality products that meet OE appearance and performance to
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Dorman – GM Splash Shield Retainer (Part No.963-405D)

GM Splash Shield Retainer

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$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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National – Multi Purpose Seal (Part No.4950)

Multi Purpose Seal

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$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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Carquest Premium – Traction Control Switch (Part No.TRA1007)

Traction Control Switch

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$32.99
The main device in any electrical circuit is a switch. In an electrical circuit a device is required to turn a component on or off when commanded by the operator, within the switch are contacts that will complete the electrical path to the load, or driven device. The operation of a switch may be manual from a person or could be electrical from some sort of controller or computer.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Where applicable electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
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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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National – Multi Purpose Seal (Part No.710545)

Multi Purpose Seal

from

$3.79
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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ATP – ATHARNESS VSS REPR (Part No.JE-36)

ATHARNESS VSS REPR

from

$265.99
ATHARNESS VSS REPR

Driveworks – Oil Seal (Part No.S-1217)

Oil Seal

from

$3.99
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Spartan – Automatic Transmission Assembly; GM RWD 6L90 6-Spd (Part No.8224A-JMBF)

Automatic Transmission Assembly; GM RWD 6L90 6-Spd

from

$3848.00
Our remanufactured transmissions have improved torque converters included with every transmission to eliminate the possibility of front seal leaks, vibration or premature bushing wear, All torque converters are tested for leaks, lock-up, concentricity & balance. Every fully remanufactured valve body, with complete system correction & recalibration kit, is tested independently & includes updated throttle valve, manual valve, 4-spool switch valve, pressure regulator valve & governor plugs for improved shifting, lubrication & performance. All wear-prone valves are restored to stringent specifications & vacuum tested to confirm proper function. Each remanufactured transmission is hot, cold, load & simulated road testing. All remanufactured transmissions are backed by the industry’s best, no-hassle nationwide warranty.

Product Features:
  • Our Remanufactured Transmissions include torque convertors, trans is completely disassembled & checked then reassembled to spec for tolerances, vacuum, seal & balance, all wear parts replaced & sim tested.
  • If we have important installation information it will be included on tags or in the paperwork packaged with your transmission.
  • Transmissions are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • All of our transmissions are Dyno tested to ensure the highest standard of trouble free service and longevity.
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Dorman – Automatic Transmission Cooler Line (Part No.J2000323240DOR)

Automatic Transmission Cooler Line

from

$42.50
Replacing a damaged cooler line with Dorman’s Auto Trans Oil Cooler Hose Assembly takes you a long way in protecting your transmission. Dorman’s line’s leak-resistant design prevents the common, high-stakes problem of transmission fluid loss. Plus, its robust construction readily defends against possible damage from road debris and corrosion.

Product Features:
  • Includes all hardware needed for a complete repair (where applicable)
  • Materials used in construction have been upgraded from steel and/or rubber to corrosion-resistant aluminum (where applicable)
  • Direct replacement for ease of installation
  • Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards
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Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243007)

Maxi-Kool® XL Transmission Oil Cooler

from

$73.99
The Imperial Maxi-Cool® XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.

Product Features:
  • Imperial Maxi-Cool® plate and fin transmission cooler
  • Size: 3/4″ x 11″ x 7-1/2″
  • Mid-size and full-size cars, pickups
  • GVWR up to 20,000 lbs.; towing up to 2,500 lbs.
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ATP – AT OIL PAN GASKET (Part No.JG-107)

AT OIL PAN GASKET

from

$9.99
AT OIL PAN GASKET

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
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Dorman – Drain Plug – M12-1.75 Pilot Point (Part No.65416)

Drain Plug - M12-1.75 Pilot Point

from

$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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Dorman – Help – Transmission Oil Dipstick: Direct Replacement, Steel (Part No.921-049)

Transmission Oil Dipstick: Direct Replacement, Steel

from

$26.99
This automatic transmission dipstick is designed to match the fit and function of the original dipstick on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this automatic transmission dipstick is designed to match the fit and function of the original dipstick on specified vehicles
  • Restores functionality – reliable replacement for an original dipstick that has bent or broken 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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GM Genuine Parts – Transmission Control Module (Part No.24256864)

Transmission Control Module

from

$392.99
GM Genuine Parts Transmission Control Modules are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These modules help control shifting in vehicles with automatic transmissions. 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:
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
  • Dictates the operation of your vehicle’s vital systems, which is critical to the performance of your vehicle
  • 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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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 – ABS Wheel Speed Sensor (Part No.SBC3665)

ABS Wheel Speed Sensor

from

$22.99
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 – AT Friction Disc (Part No.J3010586001ACD)

AT Friction Disc

from

$10.10
AT Friction Disc

Driveworks – Transfer Case Output Shaft Seal (Part No.S-4503N)

Transfer Case Output Shaft Seal

from

$13.29
Product Features:
  • Brand may vary by location
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2008 GMC Sierra 2500 HD Transmission Parts

You count on your 2008 GMC Sierra 2500 HD 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 92 Transmission Parts ranging in price from $2.60 to $4,046.99, you’re sure to find everything you need for your 2008 GMC Sierra 2500 HD.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 23 different brands like Imperial, Dorman, and Anchor. 2008 GMC Sierra 2500 HD 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 576 extensive product reviews on 2008 GMC Sierra 2500 HD Transmission Parts. Some of the top-rated Transmission Parts products we carry are Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread with 4.1 stars and Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty with 4.5 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 2008 GMC Sierra 2500 HD below to get started!

Top-Rated Transmission Parts Brands For Your 2008 GMC Sierra 2500 HD

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 2008 GMC Sierra 2500 HD running right for years to come. In our inventory you’ll find brands like Imperial, Dorman, Anchor, and even more.

Popular Permatex Transmission Parts

You’ll find popular Permatex brand products across Automatic Transmission Pan and Gaskets. All are waiting to get your 2008 GMC Sierra 2500 HD back on the road. Some of the top-rated Permatex products in these categories are:
High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ
from $26.99
(7)
High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ
Transmission Pan Gaskets

FAQs for 2008 GMC Sierra 2500 HD Transmission Parts

What are the most purchased Transmission Parts for the 2008 GMC Sierra 2500 HD?

Out of 92 Transmission Parts for the 2008 GMC Sierra 2500 HD, the most popular in our inventory are:
Transmission Mount: Rear, 1 Piece
from $23.49
(20)
Transmission Mount: Rear, 1 Piece
Transmission Mounts
Transmission Mount: Rear, 1 Piece
from $17.29
(12)
Transmission Mount: Rear, 1 Piece
Transmission Mounts
Torque Convertor Bolts
from $9.49
This product is not rated
Torque Convertor Bolts
Torque Converter Hardware

What are the top-rated 2008 GMC Sierra 2500 HD Transmission Parts?

Top-rated Transmission Parts for your 2008 GMC Sierra 2500 HD based on customer reviews/ratings are:
Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread
from $8.99
(9)
Transmission Line Connector With 3/8 Tube X 1/4-18 In. Thread
“Fit perfectly in my 4L60”
Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty
from $80.99
(8)
Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty
“Used this cooler to replace the missing factory one on my Polaris 330 ATV. Made an adapter plate to fit to the fan housing. Works great, beats the $30”
Maxi-Kool® XL Transmission Oil Cooler
from $73.99
(7)
Maxi-Kool® XL Transmission Oil Cooler
“this transmission oil cooler is replacing my one on my 2000 dodge dakota its priced right mid size and easy to put in the ome one is 250 this is 60 an”