Lego® Technic 42003 Axle and Pin Connector (light bluish gray)
LEGO® 42003 4210857 - 6273715
Record Breaker 42033 | Technic | Buy online at the Official LEGO® Shop DK
Peeron: Off-Roader (#8297-1)
Self Locking Bricks MOC Technical Parts Connectors 20pcs CROSS BLOCK 3M Building Block Pack for Kids Compatible with Lego 42003|Model Building Kits| - AliExpress
BrickLink - Part 42003 : LEGO Technic, Axle and Pin Connector Perpendicular 3L with 2 Pin Holes [Technic, Connector] - BrickLink Reference Catalog
LEGO Black Cross Block 1 x 3 (42003 / 42796) | Brick Owl - LEGO Marketplace