Gator sanitation kits with similar blue and gray fittings may contain different replacement components. The accessory-kit number is a better starting point than the apparent size of a hose connector. Use this list to match the tank capacity and original package before replacing the kit.

Identify accessory kit by capacity and MPN

All six items are accessory kits, not complete portable holding tanks. A kit's hose and end fittings must match the original tank and the parts you need to replace.

Manufacturer MPN Tank capacity Kit type What it is for
21978 6-gallon Complete accessory kit Listed as the replacement accessory kit for the 6-gallon Gator tank (model 21900); tank sold separately.
21985 16-/23-gallon Hose and sanitation connection kit Multi-piece replacement set including a short wastewater hose and connection accessories for the listed tank capacities.
21962 29-gallon Tank accessory kit 29-gallon accessory-kit reference. Match the required original kit part number, not just tank capacity.
21994 29-gallon Hose and dump-connection kit A separate 29-gallon accessory-kit number with wastewater hose and dump-connection components.
21973 38-gallon Tank accessory kit 38-gallon replacement accessory set for wastewater hose and disposal connections.
21999 38-gallon Hose and dump-connection kit Another 38-gallon accessory-kit part number. Compare the exact required components before selection.
Same capacity does not establish the same package. Both 21962 and 21994 are listed for 29-gallon tanks; both 21973 and 21999 are listed for 38-gallon tanks. Compare the original kit MPN and required components rather than treating these pairs as automatically interchangeable.

How to recognize the correct replacement

  • Find the tank's stated capacity: identify the original 6-, 16-, 23-, 29- or 38-gallon unit.
  • Match the original accessory-kit MPN: the 29- and 38-gallon groups each include two different part numbers.
  • List the missing pieces: note whether you need a wastewater hose, bayonet connection, discharge elbow, cap or adapter.
  • Separate kits from small fittings: part 21978 is the manufacturer's complete 6-gallon accessory kit, even if an older listing calls it one hose fitting.
  • Check connections: verify wastewater fitting type and original tank layout before choosing a kit.

Products by exact part number

The cards link to the exact UsedRVParts catalog records; review each item's stated condition and availability. Viewing and pickup in Kelowna are by appointment.

identify wheels, axles and towing parts by manufacturer number. For individual sewer hose seals, caps, elbows and extension sections, see the Gator hose fittings identification guide.

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