Wisco Products Logo

Filler Caps and Accessories

For Manufacturers of Rail Locomotives, Marine and Racing Vehicles, Liquid Processing Systems
and Storage, and Heavy Duty Off-Road, Construction, Mining, Farm and Forestry Equipment

  • Filler Caps
  • Fuel Cell Caps
  • Radiator Caps
  • Oil Caps
  • Hydraulic Caps
  • Race Caps
  • Tank Caps
  • Flush-Mount Caps
  • Filler Necks
  • Filler Neck Mounts
  • In-neck Strainers
  • Filler Accessories
ISO 9001:2015 Quality Registered

Wisco Products, a precision manufacturer and assembler, produces a full line of fluid filler caps, filler necks and accessories for all your OEM engine and fluid containment systems. Wisco Products can also manufacture custom filler caps, filler necks, neck mounts and strainers to meet your specific application.

Regardless of your fluid containment application, you require features that assure reliable function and rugged performance whether in the plant or in the field, and whether part of an operating system or for storage only. whatever your needs Wisco Products knows filler system applications.

Look through our Products section of this website or call our Inside Sales Department now at 800-367-6570 to learn how Wisco Products can meet your engine fluids and process fluid containment fill needs!

Wisco Products - a complete line of filler caps, filler necks and strainers for OEM