2006-11 Buick Lucerne Cadillac DTS Radiator Overflow Bottle with Cap Dorman 603-237 - 1AROB00232


  • Brand New Radiator Overflow Bottle
  • Commonly called "Coolant Overflow Tank" or "Reservoir"
  • Strengthened and redesigned in the vulnerable areas of failure
  • Replacement for originals that are cracked or broken
  • Plastic construction
  • Includes Cap

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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1a auto is an elite company when it comes to auto parts. Your response to customers request when comes to defeated parts I must say job well done caring and completing customers awareness defined 1a auto as a excellent company. 1a auto is second to none great job.
October 12, 2017
9 months ago
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Vehicle Fit

  • 2006-2011 Buick Lucerne Super Sedan Radiator Overflow Bottle with Cap V8 4.6L Dorman 603-237
  • 2006-2011 Cadillac DTS Radiator Overflow Bottle with Cap Dorman 603-237

This part replaces:

  • Dorman 603-237
  • OE # 25760633
  • Hollander 671-00103
Part #: 1AROB00232

Ships in 1-3 Business Days. Delivery times vary.

Brand #: 603-237