How to replace the Transmission Oil Cooler Hose on 2005 GMC Sierra 3500?

In order to remove the Transmission Fluid Cooler Hose/Pipe, unscrew the front grille, and remove the auxiliary transmission fluid cooler lines. Lift it, take off the engine protection shield, and disconnect the lines of the oil cooler. Install new lines, reassemble all that, and refit the front grille.

OEM 2005 GMC Sierra 3500 Transmission Oil Cooler Hose

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2005 GMC Sierra 3500 Outlet Pipe, Upper Part Number: 15170219
$57.88 MSRP: $139.55
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Product Specifications
- Other Name: Pipe Assembly-Transmission Fluid Cooler Upper; Pipe, Transmission Oil Cooler
- Position: Upper
- Item Weight: 1.80 Pounds
- Item Dimensions: 56.4 x 21.9 x 5.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15170219
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 GMC Sierra 3500 Submodels:
- Base, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL

2005 GMC Sierra 3500 Transmission Oil Cooler Hose

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2005 GMC Sierra 3500 Transmission Oil Cooler Hose Parts and Q&A

Q: How to replace the Transmission Oil Cooler Hose on 2005 GMC Sierra 3500?
A: In order to remove the Transmission Fluid Cooler Hose/Pipe, unscrew the front grille, and remove the auxiliary transmission fluid cooler lines. Lift it, take off the engine protection shield, and disconnect the lines of the oil cooler. Install new lines, reassemble all that, and refit the front grille.