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Oil Return Line for 2004-2005 GM Trucks A1372229N

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Oil Return Line

Oil Return Line for 2004-2005 GM Trucks A1372229N
  • Designed in-house to meet or exceed OE performance:
  • Custom designed spatial testing jigs used to confirm vehicle fitment for each application.
  • Every line is pressure tested in-house to meet or exceed O.E. pressure requirements and prevent leaks.
  • We are able to analyze OE materials used to meet or exceed corrosion resistance.
    E. materials used to guarantee corrosion resistance.
  • We are able to meet or exceed OE sealing technologies and materials used to prevent any future leaks.
    E. sealing technologies and materials used to prevent leaks.

Product Information

Rotomaster SKU A1372229N
Product Condition New
Package Contents Oil Return Line; Gaskets

2004-2005 GM SILVERADO 2500 HD 6.6L

2004-2005 GM SILVERADO 3500 HD 6.6L

2004-2005 GM SIERRA 2500 HD 6.6L

2004-2005 GM SIERRA 3500 HD 6.6L

OE Part Number 97303635
Manufacturer's Warranty 12 months from the date of purchase.
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8 hours 


Service Technician “B” or higher 


  1. Carefully inspect the air cleanerair cleaner duct, and the exhaust manifold for any foreign material. Objects left in these areas can severely damage the turbocharger immediately on engine startup. 
  2. Remove old gaskets and left-over material from the exhaust manifold, the oil supply line and oil drain line flanges. Inspect these surfaces for cracks, flatness, or erosion. 
  3. Inspect the oil supply and drain lines for degradation and cracking 
  4. Make sure that there are no kinks or any other type of restriction or clogging in either line. 

Click here for the complete guide

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