How to replace the Transmission Oil Cooler Hose on 2003 GMC Savana 3500?

Remove upper oil cooler line, raise vehicle; on AWD, remove engine shield, then lower line. Pull plastic cap back, rotate and discard retaining ring, detach lines, remove from oil-pan clip. Fit new rings, reinstall lines with caps, confirm click and retention, seat caps flush, replace clip, tighten radiator flair nuts, lower vehicle, start engine.

OEM 2003 GMC Savana 3500 Transmission Oil Cooler Hose

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2003 GMC Savana 3500 Outlet Pipe, Lower Part Number: 15808430
$61.42 MSRP: $104.56
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Product Specifications
- Other Name: Hose Assembly-Transmission Fluid Cooler Lower; Hose, Transmission Oil Cooler
- Position: Lower
- Replaces: 15230701, 15751528
- Item Weight: 2.20 Pounds
- Item Dimensions: 72.8 x 16.6 x 8.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15808430
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 GMC Savana 3500 Submodels:
- Base, SLE | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS

2003 GMC Savana 3500 Transmission Oil Cooler Hose

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2003 GMC Savana 3500 Transmission Oil Cooler Hose Parts and Q&A

Q: How to replace the Transmission Oil Cooler Hose on 2003 GMC Savana 3500?
A: Remove upper oil cooler line, raise vehicle; on AWD, remove engine shield, then lower line. Pull plastic cap back, rotate and discard retaining ring, detach lines, remove from oil-pan clip. Fit new rings, reinstall lines with caps, confirm click and retention, seat caps flush, replace clip, tighten radiator flair nuts, lower vehicle, start engine.