This is a sources sought notice for a potential sole-source contract for CAT-specialized diagnostic services and parts to support the 4th Engineer Battalion’s heavy equipment fleet at Fort Carson, CO. The anticipated period of performance is from July 1, 2026, to June 30, 2031, with services ordered on an as-needed basis. The government is seeking information from vendors capable of performing this requirement to potentially support a competitive procurement. Interested firms must submit company details, capability and experience information, and evidence of commercial availability. Responses should be emailed to the specified contract specialist and contracting officer.