How to replace the Transmission Oil Cooler on a 6L50/6L80/6L90 automatic transmission on GMC Sierra 1500?

The process of replacing the transmission fluid Transmission Oil Cooler in a 6l50/6l80/6l90 automatic transmission starts by removing the front grill assembly. Place a drain pan under the vehicle before you disconnect Transmission Oil Cooler lines from the Transmission Oil Cooler. Remove the Transmission Oil Cooler and its bolts and push pins before you can remove it from the vehicle. Install the new Transmission Oil Cooler by placing it into position and installing its bolts and push pins to the radiator brace following a torque of 12 nm (9 lb ft). Reposition the front grill assembly after connecting the Transmission Oil Cooler lines to the Transmission Oil Cooler.

How to replace the Transmission Oil Cooler for the 4L60-E/4L65-E on GMC Sierra 3500?

The replacement process of the Transmission Oil Cooler 4l60-e/4l65-e starts by removing the front grill assembly. To begin the process place a drain pan underneath the vehicle and remove the Transmission Oil Cooler lines from the auxiliary cooler. Before moving forward disconnect the auxiliary oil cooler bolts followed by push pins before extracting the auxiliary oil cooler from the vehicle. Installation requires positioning the auxiliary oil cooler into its normal location followed by bolting it to the radiator brace with push pins while tightening bolts to 12 nm (9 ft. Lbs.). Complete the Transmission Oil Cooler line setup with the auxiliary cooler then install the front grill assembly.

OEM GMC Transmission Oil Cooler

Trans Oil Cooler

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27 Transmission Oil Coolers found

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GMC Transmission Cooler Part Number: 89040217
$365.26 MSRP: $545.98
You Save: $180.72 (34%)
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Product Specifications
- Other Name: Cooler, Engine Oil Cooler; Automatic Transmission Oil Cooler; Cooler, Transmission Oil Cooler
- Replaces: 15767445, 15170221
Fits the following GMC Models:
- Sierra 2500 HD | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
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GMC Transmission Cooler Part Number: 89022535
$186.49 MSRP: $278.77
You Save: $92.28 (34%)
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Product Specifications
- Other Name: Cooler, Engine Oil Cooler; Cooler, Transmission Oil Cooler
- Replaces: 15995536
Fits the following GMC Models:
- C1500 | 1996-1999 | Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1996-1999 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K2500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Transmission Cooler Part Number: 24045331
$74.87 MSRP: $118.87
You Save: $44.00 (38%)
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Product Specifications
- Other Name: Exchanger Assembly-Automatic Transmission Fluid Cooling; Oil Cooler; Exchanger, Transmission Oil Cooler
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
- Sierra 1500 | 2019-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL
- Sierra 1500 Limited | 2022 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon | 2021-2023 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon XL | 2021-2023 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Transmission Cooler Part Number: 15059397
$168.58 MSRP: $256.48
You Save: $87.90 (35%)
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Cooler, Transmission Oil Cooler
- Replaces: 15153151, 15970092
Fits the following GMC Models:
- Savana 1500 | 1996-2002 | Base, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Savana 2500 | 1996-2002 | Base, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- Savana 3500 | 1996-2002 | Base, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS, 8 Cyl 8.1 L GAS
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GMC Transmission Cooler Part Number: 52480215
$14.32 MSRP: $58.27
You Save: $43.95 (76%)
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Product Specifications
- Other Name: Cooler Assembly, Transmission Oil; Oil Cooler; Cooler Assembly; Cooler, Transmission Oil Cooler
- Replaces: 52467270, 52466235, 52480211
Fits the following GMC Models:
- Jimmy | 1996-2001 | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Transmission Cooler Part Number: 52487851
$69.90 MSRP: $230.58
You Save: $160.68 (70%)
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Product Specifications
- Other Name: Cooler Assembly, Transmission Fluid; Oil Cooler; Cooler Assembly; Cooler, Transmission Oil Cooler
- Replaces: 03059134, 03090586, 3090586, 52461116, 3059134
Fits the following GMC Models:
- Jimmy | 1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Transmission Cooler Part Number: 24288625
$74.87 MSRP: $118.87
You Save: $44.00 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Exchanger Assembly-Automatic Transmission Fluid Cooling; Oil Cooler; Exchanger, Transmission Oil Cooler
- Replaced by: 24045331
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL
- Sierra 1500 Limited | 2022 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon | 2021-2023 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
- Yukon XL | 2021-2023 | Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Transmission Cooler Part Number: 24290617
$98.89 MSRP: $162.89
You Save: $64.00 (40%)
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Product Specifications
- Other Name: Exchanger Assembly-Automatic Transmission Fluid Cooling; Oil Cooler; Exchanger, Transmission Oil Cooler
- Replaced by: 24042617
Fits the following GMC Models:
- Acadia | 2020-2023 | Denali, SLE, SLT | 4 Cyl 2.0 L GAS
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GMC Transmission Cooler Part Number: 84173163
$226.54 MSRP: $363.37
You Save: $136.83 (38%)
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Automatic Transmission Oil Cooler; Cooler, Transmission Oil Cooler
- Replaces: 23448375
Fits the following GMC Models:
- Sierra 2500 HD | 2015-2016 | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2015-2016 | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
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GMC Transmission Cooler Part Number: 25874229
$138.87 MSRP: $214.69
You Save: $75.82 (36%)
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Automatic Transmission Oil Cooler; Cooler, Transmission Oil Cooler
Fits the following GMC Models:
- Sierra 2500 HD | 2011-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Sierra 3500 HD | 2011-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
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GMC Transmission Cooler Part Number: 84342541
$158.61 MSRP: $239.23
You Save: $80.62 (34%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Oil Cooler; Cooler, Transmission Oil Cooler
- Replaced by: 85822148
Fits the following GMC Models:
- Yukon | 2021-2023 | AT4, Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2021-2023 | AT4, Denali, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Transmission Cooler Part Number: 84173164
$218.52 MSRP: $326.63
You Save: $108.11 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Automatic Transmission Oil Cooler; Cooler, Transmission Oil Cooler
- Replaces: 23479333
Fits the following GMC Models:
- Sierra 2500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2017-2019 | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
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GMC Transmission Cooler Part Number: 23395755
$140.69 MSRP: $220.17
You Save: $79.48 (37%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Cooler, Transmission Oil Cooler
- Replaced by: 85829174
Fits the following GMC Models:
- Sierra 2500 HD | 2020-2024 | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2024 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Transmission Cooler Part Number: 23409058
$110.20 MSRP: $212.02
You Save: $101.82 (49%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Automatic Transmission Oil Cooler; Oil Cooler; Cooler, Transmission Oil Cooler
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Sierra 1500 Limited | 2022 | AT4, Denali, Elevation, SLE, SLT | 6 Cyl 3.0 L DIESEL
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GMC Auxiliary Cooler Part Number: 22839312
$128.11 MSRP: $191.50
You Save: $63.39 (34%)
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Product Specifications
- Other Name: Cooler Assembly-Transmission Fluid Auxiliary; Cooler, Transmission Oil Cooler
- Replaces: 15751207, 20985355
Fits the following GMC Models:
- Savana 1500 | 2003-2014 | Base, LS, LT, SLE | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Savana 2500 | 2003-2020 | Base, LS, LT, SLE | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Savana 3500 | 2003-2020 | Base, LS, LT, SLE | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Transmission Cooler Part Number: 52469411
Product Specifications
- Other Name: Cooler Assembly, Transmission Oil; Cooler, Transmission Oil Cooler
- Replaces: 52468239, 52467042, 52469410
Fits the following GMC Models:
- Jimmy | 1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Transmission Cooler Part Number: 52491876
Product Specifications
- Other Name: Cooler Assembly, Transmission Fluid; Cooler, Transmission Oil Cooler
Fits the following GMC Models:
- Envoy | 2002-2003 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XL | 2002-2003 | SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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GMC Transmission Cooler Part Number: 89022577
Product Specifications
- Other Name: Cooler, Engine Oil Cooler; Cooler, Transmission Oil Cooler
- Replaces: 15995535
Fits the following GMC Models:
- C1500 | 1997 | Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 8 Cyl 6.5 L DIESEL
- C2500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1997-1998 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 8 Cyl 6.5 L DIESEL
- K2500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1997-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Transmission Cooler Part Number: 15974686
Product Specifications
- Other Name: Cooler, Transmission Oil Cooler
Fits the following GMC Models:
- C1500 | 1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C2500 | 1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1993 | Sierra, Sierra SLE, Sierra SLX, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K2500 | 1993 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1993 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Transmission Cooler Part Number: 15990593
Product Specifications
- Other Name: Cooler, Transmission Oil Cooler
Fits the following GMC Models:
- C1500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K2500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1994-1995 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Transmission Oil Cooler

Choose OEM Transmission Oil Cooler, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM GMC Transmission Oil Cooler. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Transmission Oil Cooler ensures that the temperatures of the drive train remain low and hence trucks drag hard without being heat-tortured. Since the beginning of the 20th century, GMC has been producing trucks and SUVs based on solid framework, brawny power plants, and technology that makes towing a less traumatizing experience among average drivers. Its cars drive away with soundproof cabins, MultiPro tailgates which fold and unfold like a bed and a suspension that eats up job-site ruts as well as highway slabs. The brand is strong enough to be hammered on the rough tracks and then released to the customers. The addition of features such as surround vision and hitch guidance enables teenage learners to reverse a trailer without being sweaty. The company pursues capability, comfort, and safety in equal measure as demonstrated by constant updates of infotainment and driver alerts. When loads increase or traffic crawls, the Transmission Oil Cooler bypassed fluid under pressure into finned passages which radiate heat into passing air and keep the lubricant near its sweet-spot viscosity level to ensure the clutch-packs remain grippy and the gears do not scar against each other over the rough miles. It is well built and can withstand road debris and winter brine and therefore drivers who are applied in snowplowing and campers rely on the unit seasonally. The Transmission Oil Cooler installation ensures the gauge needle stalls when it is low and the engine oil will last longer and without controversy, the towing confidence will be on any GMC.

GMC Transmission Oil Cooler Parts and Q&A

Transmission Cooler
20880895
Q: How to replace the Transmission Oil Cooler on a 6L50/6L80/6L90 automatic transmission on GMC Sierra 1500?
A:
The process of replacing the transmission fluid Transmission Oil Cooler in a 6l50/6l80/6l90 automatic transmission starts by removing the front grill assembly. Place a drain pan under the vehicle before you disconnect Transmission Oil Cooler lines from the Transmission Oil Cooler. Remove the Transmission Oil Cooler and its bolts and push pins before you can remove it from the vehicle. Install the new Transmission Oil Cooler by placing it into position and installing its bolts and push pins to the radiator brace following a torque of 12 nm (9 lb ft). Reposition the front grill assembly after connecting the Transmission Oil Cooler lines to the Transmission Oil Cooler.
Transmission Cooler
89040217
Q: How to replace the Transmission Oil Cooler for the 4L60-E/4L65-E on GMC Sierra 3500?
A:
The replacement process of the Transmission Oil Cooler 4l60-e/4l65-e starts by removing the front grill assembly. To begin the process place a drain pan underneath the vehicle and remove the Transmission Oil Cooler lines from the auxiliary cooler. Before moving forward disconnect the auxiliary oil cooler bolts followed by push pins before extracting the auxiliary oil cooler from the vehicle. Installation requires positioning the auxiliary oil cooler into its normal location followed by bolting it to the radiator brace with push pins while tightening bolts to 12 nm (9 ft. Lbs.). Complete the Transmission Oil Cooler line setup with the auxiliary cooler then install the front grill assembly.