Your search for "cargo" revealed the following
Glow in the Dark Thomas and Cargo Cars (2013) Good Condition Used - Trackmaster Revolution
Thomas brand used battery glow in the dark Thomas and Cargo Cars
$37.50 CAD
$40.00 CAD
Circus Cargo Car Peeling Sticker Pull Along Capsule Plarail - Used
Thomas brand used small pull along toy
$2.97 CAD
Deliver the Win Diesel missing Cargo (2021 Mattel) "All Engines Go" Used - Motorized
Thomas brand used motorized train as shown
$19.97 CAD
Shooting Star Gordon no Cargo (2013) Good Condition Used - Trackmaster Revolution
Thomas brand used motorized Trackmaster Gordon
$39.97 CAD
Harold’s Heliport Remote Control Portable Playset Lights and Sounds with 3 Cargo Pieces and Cargo Car #2 (Missing Door/Peeling Sticker) Used - Take Along
Thomas brand used take along set. Harold sometimes gets stuck when carrying cargo. Works without cargo Video shows the actual item:
$95.00 CAD
Glow-In-The-Dark Troublesome Truck with Carpet Cargo (2009 Mattel) Used - Trackmaster
Troublesome truck as shown
$24.97 CAD
Gina and Cargo Cars (2013 Mattel) Missing Drill Good Condition Used - Trackmaster Revolution
Trackmaster Gina
$32.50 CAD
Gold Mine Mountain Set #1 (Cargo Car Only NO TRAINS/Fair Condition Worn Mountain Track) Wooden - Used
Thomas brand used set as shown
$120.00 CAD
Catherine & Tender with Cargo (Learning Curve 1999) Very Good Condition Rare Wooden - Used
Thomas brand used wooden 1999 Britt Allcroft Catherine and tender
$89.97 CAD