Duraflex Gator Accessory Kits for 6, 16, 23, 29 & 38-Gallon Tanks

Replacing the hose and fittings that came with a Gator portable waste tank starts with its capacity and exact accessory-kit number. The six kits here serve different 6-, 16-, 23-, 29- and 38-gallon models. Some capacities appear under more than one kit number, so identify the required replacement set rather than relying on capacity alone.

Compare tank accessory-kit part numbers

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.

What to check before ordering

  • Identify the tank: 21978 is listed for the 6-gallon 21900 tank; 21985 serves the 16- and 23-gallon group.
  • Compare the package: 21962 and 21994 are two distinct 29-gallon part numbers; 21973 and 21999 are distinct 38-gallon part numbers.
  • Decide what is being replaced: a hose and fitting kit is different from a complete portable holding tank.
  • Check existing fittings: measure and compare the original hose, caps, bayonet couplings and dump-station connection.
  • Consider individual service parts: if only a single seal, cap or elbow has failed, a separate replacement part may be more appropriate.

Find matching Duraflex replacements

Each card links to the exact NewRVParts product record for online ordering. Products ship from supplier warehouses and cannot be viewed or picked up in person.

find replacement wheels, axles and towing handles. For individual sewer hose seals, caps, elbows and extension sections, see our Gator sewer hose replacement parts guide.

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