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2018 GMC Sierra 3500 HD

2018 GMC Sierra 3500 HD Transmission Control Modules

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OE Replacement Series Transmission Control Module - Direct Fit, Sold individually
Part Number: AC24275873
Guaranteed to Fit
$764.99

+ $120.00 Refundable Core Charge

Vehicle Fitment
  • 2018 GMC Sierra 3500 HD Base 8 Cyl 6.0L Eng Des: L96, Vin: G, Naturally Aspirated, FLEX, Transmfrcode : 6L90, Electronic Trans Controller Asm With Solenoids & Tcm (Not A Control Val Ve Body Asm With Valve Body, Valves, And Springs)(Code 2D2A, 3Dha
  • 2018 GMC Sierra 3500 HD SLT 8 Cyl 6.0L Eng Des: L96, Vin: G, Naturally Aspirated, GAS, Transmfrcode : 6L90, Electronic Trans Controller Asm With Solenoids & Tcm (Not A Control Val Ve Body Asm With Valve Body, Valves, And Springs)(Code 2D2A, 3Dha
  • 2018 GMC Sierra 3500 HD SLE 8 Cyl 6.0L Eng Des: L96, Vin: G, Naturally Aspirated, FLEX, Transmfrcode : 6L90, Electronic Trans Controller Asm With Solenoids & Tcm (Not A Control Val Ve Body Asm With Valve Body, Valves, And Springs)(Code 2D2A, 3Dha
  • 2018 GMC Sierra 3500 HD Denali 8 Cyl 6.0L Eng Des: L96, Vin: G, Naturally Aspirated, GAS, Transmfrcode : 6L90, Electronic Trans Controller Asm With Solenoids & Tcm (Not A Control Val Ve Body Asm With Valve Body, Valves, And Springs)(Code 2D2A, 3Dha
Product Details
Notes : (16) Terminals; Pin Type; (1) Female ConnectorWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : OE Replacement SeriesProduct Fit : Direct Fit
GM Original Equipment Series Transmission Control Module - Direct Fit, Sold individually
Part Number: AC24279973
Guaranteed to Fit
$154.99
Vehicle Fitment
  • 2018 GMC Sierra 3500 HD Denali 8 Cyl 6.6L 4-Door, Crew Cab Pickup, transmissionmfrcode : 1000
  • 2018 GMC Sierra 3500 HD SLE 8 Cyl 6.6L 4-Door, Extended Cab Pickup, transmissionmfrcode : 1000
  • 2018 GMC Sierra 3500 HD Base 8 Cyl 6.6L 2-Door, Cab & Chassis, transmissionmfrcode : 1000
  • 2018 GMC Sierra 3500 HD SLT 8 Cyl 6.6L 4-Door, Crew Cab Pickup, transmissionmfrcode : 1000
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : NewSeries : GM Original Equipment SeriesProduct Fit : Direct Fit
OE Solutions Series Transmission Control Module - Direct Fit, Sold individually
Part Number: RB609006
Guaranteed to Fit
$265.49

+ $345.00 Refundable Core Charge

Vehicle Fitment
  • 2018 GMC Sierra 3500 HD SLT All Engines 6-Speed, Automatic Transmission, transmissionmfrcode : 6L90
  • 2018 GMC Sierra 3500 HD SLE All Engines 6-Speed, Automatic Transmission, transmissionmfrcode : 6L90
  • 2018 GMC Sierra 3500 HD Base All Engines 6-Speed, Automatic Transmission, transmissionmfrcode : 6L90
  • 2018 GMC Sierra 3500 HD Denali All Engines 6-Speed, Automatic Transmission, transmissionmfrcode : 6L90
Product Details
Warranty : Lifetime Dorman limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Condition : RemanufacturedSeries : OE Solutions SeriesInterchange Part Number : 24256939, 24257213, 24259639, 24259835, 24261870, 24265259, 24270598, 24275873, 24276637Replaces OE Number : 24256939, 24257213, 24259639, 24259835, 24261870, 24265259, 24270598, 24275873, 24276637Product Fit : Direct Fit
Page 1 of 1 | Showing 1 - 3 of 3 results

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Product Questions & Answers

Q:Do I have to get it program before I replace with new one?
Kenneth M.
A:BEST ANSWERHi Kenneth, thanks for initiating contact. Yes, It is best to have the TCM programmed before installation. The dealership, manufacturer, or shop with equivalent tools will need your VIN to flash or program. The module needs to be tailored to your specific vehicle's parameters, such as engine type, transmission type, and other vehicle-specific data. If your vehicle information matches this product, click the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping! https://www.carparts.com/transmission-control-module/ac-delco/ac24279973?can=CPGG4850_CSQA_20240712 Show less
Grace G.
 
2 Questions, 1 AnswerView all Q&As >
Q:hello how long a have to return the core ?
16 colorado
A:BEST ANSWERHi Daniel, I'm glad to assist you. You have to return the core within three months from the day of purchase. Please call our hotline (1-866-529-0412) and ask to be transferred to our returns department after you have installed the part you ordered and it works fine in your vehicle. It is a guaranteed fit part if your truck appears in the vehicle fitment information below (after selecting the year, make, model, submodel, and engine size). Happy shopping! https://www.carparts.com/vehicle/2016/Chevrolet/Silverado_2500_HD/LT/8_Cyl_6-dot-6L?can=cpje1043_CSQA_20240914 Show less
Jeonino E.
 
5 Questions, 1 AnswerView all Q&As >
Q:Would this come already programmed for my truck?
steve k.
A:BEST ANSWERHi Steve, I'm pleased to assist you. No, it will come unprogrammed. This module will require your VIN by the dealership or the manufacturer, who should be updating the most current software for your specific vehicle. Click on the link below to order at 17% off the regular price today while supplies last. I hope this is helpful. Enjoy shopping at Carparts.com! https://www.carparts.com/transmission-control-module/ac-delco/ac24275873?can=CPGG4850_20220217 Show less
Grace G.
 
5 Questions, 1 AnswerView all Q&As >

Helpful Automotive Resources

What Does Resetting the Transmission Module Do? How and When to Reset
What Does Resetting the Transmission Module Do? How and When to ResetBad connections could affect the module and cause transmission issues. Reverting the TCM to its factory settings could eliminate the problems they caused.
P0729 Code: Gear 6 Incorrect Ratio
P0729 Code: Gear 6 Incorrect RatioNewer vehicles often have more than four gear ratios for better fuel economy. The control modules also determine when to shift up or down between gears depending on various data, such as throttle position and vehicle speed.
Why Do EVs Have Fake Engine Noise?
Why Do EVs Have Fake Engine Noise?EVs and internal combustion engine vehicles generally use powertrain data to make the sound emulate the increasing pitch of engine revs and the drops in tone during a gear shift.
Is Your Car Stuck In Neutral? Here’s Why
Is Your Car Stuck In Neutral? Here’s WhyThe transmission fluid is also responsible for performing these duties: Transferring power in the torque converterProviding hydraulic pressure in clutches and servosLubricating bearings, bushings, and gearsTransferring heat to cool transmission partsProviding the correct friction for clutch and band operation
P0700: Transmission Control System (MIL Request)
P0700: Transmission Control System (MIL Request)The TCM monitors the sensors and actuators in the transmission system and sends the data to the PCM. This module monitors the throttle speed sensor, motor speed sensor, and output shaft speed sensor. Once the module detects something wrong with the transmission controls, it’ll trigger the P0700 code.
P0763 Code: Shift Solenoid C Electrical
P0763 Code: Shift Solenoid C ElectricalTo change gears, the automatic transmission uses bands and clutches, which are activated by having fluid pressure in the right place at the right time. Transmission solenoids are in charge of opening and closing valves in the valve body to allow transmission fluid to flow to the clutches and bands.