TC72PB — 72-inch cable
A 72-inch replacement cable and valve handle with a stainless-steel inner wire.
View TC72PBValterra Waste-Valve Replacement Cables: 72, 96 & 120 Inch Guide
A stiff, damaged or disconnected cable can make an RV holding-tank drain valve hard to open or close, even when the valve body itself is still serviceable. Valterra offers replacement cable-and-handle assemblies in 72-, 96- and 120-inch lengths, with a choice of stainless-steel inner wire or high-density polymer cable. The exact part number matters: the two cable families have different internal materials even when their lengths are the same.
Match the cable length and material
| Cable length | Stainless-steel wire | High-density polymer |
|---|---|---|
| 72 in (6 ft) | TC72PB | TC72CNPB |
| 96 in (8 ft) | TC96PB | TC96CNPB |
| 120 in (10 ft) | TC120PB | TC120CNPB |
The PB part numbers above use stainless-steel inner wire. Their CNPB counterparts use Valterra's high-density polymer cable. Both families include a valve handle. This is a material and length comparison, not a claim that one cable is a direct replacement for every valve assembly. Check the existing cable end, valve coupler and handle mounting before ordering.
Stainless-steel replacement cable assemblies
TC96PB — 96-inch cable
An 8-foot replacement cable and handle for a longer run from the valve to its control point.
View TC96PBTC120PB — 120-inch cable
A 10-foot replacement cable-and-handle assembly for a route that needs the additional length.
View TC120PBHigh-density polymer replacement cable assemblies
TC72CNPB — 72-inch cable
A 72-inch high-density polymer replacement cable with the remote valve handle supplied.
View TC72CNPBTC96CNPB — 96-inch cable
The 96-inch high-density polymer version for a compatible waste-valve control with a longer reach.
View TC96CNPBTC120CNPB — 120-inch cable
The 120-inch high-density polymer cable-and-handle assembly for a longer, correctly routed installation.
View TC120CNPBHow to choose the right replacement
- Identify the original valve and cable. Look for a Valterra part number on the existing assembly, then compare the cable connection and handle end. Valterra lists its stainless-steel cable-and-handle parts for compatible Valterra and Bladex cable valves.
- Measure the cable's actual route. Follow the existing path between the valve body and handle, allowing for the straight exit sections and gradual bends required by the manufacturer. Do not choose a length by straight-line distance alone.
- Check where the handle mounts. The valve control may be fitted through a compartment wall or a suitable bracket. Confirm the mounting opening, locknut and accessibility before replacing the handle assembly.
- Examine the valve mechanism. If the gate, body or seals are damaged, changing the cable will not replace those parts. Inspect the valve separately rather than forcing a stiff handle.
Factory cable-routing drawing and installation instructions
Valterra's cable-valve installation instructions (PDF) include an illustrated cable/handle/coupler assembly and examples of acceptable and unacceptable routing. You can also find the manual under Product Manuals on Valterra's downloads page.
The manufacturer requires at least 6 inches of straight cable leaving the valve and handle assemblies. For a 180-degree bend, the diameter must be at least 24 inches. Do not loop the cable, and secure it near the ends as shown in the factory drawing. Incorrect routing can prevent smooth valve movement.
If shortening the cable is necessary, follow Valterra's specific housing-and-inner-wire cutting procedure for the valve size. The illustrated instructions show how the setup tab, inner wire, housing, coupler and mounting hardware fit together.
Related Valterra replacement valve bodies
Replacing the actuator and replacing the gate valve are different repairs. If the valve body also needs attention, compare the existing flange and coupler with the Valterra T1001PBC 1½-inch body or Valterra T1003PBC 3-inch body. Both are offered separately from a replacement cable-and-handle assembly; verify the specific connection hardware before combining parts.
Our hub, spigot and cable valve guide explains complete valve assemblies, while the Bladex valve-body guide helps identify direct-handle replacements in 1½-, 2- and 3-inch sizes.
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