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A tub faucet diverter repair kit is the set of small parts that stops water from leaking out of the spout when you switch the flow up to the showerhead. Most kits bundle a diverter valve stem, a cup seal and a diverter gate, and a few add extra seals or a spare stem so you can repair more than one fixture. The right kit depends on how your spout is built, whether the old parts are still usable, and how many components are actually failing. The picks below are chosen by how clearly their listings describe compatibility and contents, the consistency of their part descriptions, and the patterns owners tend to report about fit and durability. None of these have been installed or tested by us; treat the notes as research-based guidance, not hands-on results.
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Enhon 2 Set Tub Spout Diverter Repair Kit (Chrome, Classic) | Homeowners wanting two complete sets | Two stems, two cup seals and two gates |
| Diverter Valve Repair Kit, 4 Pcs 101237 for Moen 3800 Tub Spout | Owners of Moen 3800-style spouts | Model-specific 101237 cup seal and gate |
| Universal Tub Spout Diverter Repair Kit, 2 Set (Classic, Chrome) | Mixed or unidentified spout brands | Universal stems, seals and gates |
| Bathtub Faucet Diverter Repair Kit, Chrome Plated | Single-fix repairs on a limited budget | One stem, one seal and one door |
| Tub Diverter Repair Kit, 3 Pcs 101237 for Moen 3800 Tub Spout | Moen 3800 owners needing a basic kit | Three-piece 101237 set |
| 2 Set Tub Spout Diverter Repair Kit with Valve Stems and Gates | Repairing two spouts at once | Two complete sets in one package |
| Shower Diverter Repair Kit, 2pcs Tub Spout Diverter Repair Kit | Replacing worn stems in older spouts | Two valve stems and two seals |
| QWORK Tub Spout Diverter Repair Kit 2-Set Replacement | Owners wanting metal valve stems | Metal valve stem with cup seal and gate |
Enhon 2 Set Tub Spout Diverter Repair Kit (Chrome, Classic)
Includes 2 x Diverter Valve Stems, 2 x Cup Seals and 2 x Gates, Bathroom Shower Bathtub Leaky Faucet Repair Replacement Parts Enhon 2 Set Tub Spout Diverter Repair Kit (Chrome, Classic)
This kit suits homeowners who want a spare set on hand or need to address two spouts. Its two-set layout means you are less likely to run short if one part is damaged during removal.
Key specs
- Includes 2 diverter valve stems
- Includes 2 cup seals
- Includes 2 diverter gates
- Chrome finish, classic style
Pros
- Two complete sets in one package
- Chrome finish matches most standard tub spouts
- Covers both the stem and the seal in the same kit
Cons
- Universal fit means you still need to match the old part before ordering
- Not a substitute if the spout body itself is cracked
Diverter Valve Repair Kit, 4 Pcs 101237 for Moen 3800 Tub Spout
Diverter Valve Repair Kit, Plastic & Rubber, Bathroom, Sink Faucet Parts, Plumbing Fixture, Shower Repair Replacement Parts 4 Pcs 101237 Cup Seal & Diverter Gate for Moen 3800 Tub Spout
This kit is aimed at owners of Moen 3800-style tub spouts who want a part number that is specifically called out in the listing. The 101237 reference is the detail to match against your existing hardware.
Key specs
- 4 pieces in the package
- Includes 101237 cup seal and diverter gate
- Plastic and rubber construction
Pros
- Model-specific reference makes matching easier
- Extra pieces give spares for a second repair
- Simple plastic and rubber parts are straightforward to fit
Cons
- Only useful if your spout is a compatible Moen 3800 design
- Plastic components may wear sooner than metal alternatives
Universal Tub Spout Diverter Repair Kit, 2 Set (Classic, Chrome)
2 Set Universal Tub Spout Diverter Repair Kit Parts, Includes 2 x Diverter Valve Stems, 2 x Cup Seals and 2 x Gates, Bathroom Shower Bathtub Leaky Faucet Repair Replacement Parts (Classic,Chrome)
This is a good fit when you are not sure of the spout brand or when the old parts are no longer identifiable. The universal design is intended to cover a range of common spout types.
Key specs
- Two diverter valve stems
- Two cup seals
- Two diverter gates
- Classic chrome finish
Pros
- Universal design suits a wider range of spouts
- Two sets provide a backup
- Chrome finish is a common match for existing fixtures
Cons
- Universal fit can require some trial to get a clean seal
- Owners sometimes report a need to trim or adjust parts
Bathtub Faucet Diverter Repair Kit, Chrome Plated
Bathtub Faucet Diverter Repair Kit, Includes 1 Diverter Stem, 1 Cup Seal and 1 Door, Bathroom Shower Bathtub Leak Faucet Repair Replacement Parts, Chrome Plated
This kit is the most minimal option in the group, with one of each core part. It works for a single, clearly identified failure where you only need to replace one stem, seal or door.
Key specs
- 1 diverter stem
- 1 cup seal
- 1 door (diverter gate)
- Chrome plated finish
Pros
- Compact package for a simple, single-part repair
- Chrome plating matches common spout finishes
- Lower commitment if you only need one replacement
Cons
- No spare parts if the first install goes wrong
- Less useful if several components are worn
Tub Diverter Repair Kit, 3 Pcs 101237 for Moen 3800 Tub Spout
Tub Diverter Repair Kit, Plastic & Rubber, Bathroom, Sink Faucet Parts, Plumbing Fixture, Shower Repair Replacement Parts 3 Pcs 101237 Cup Seal & Diverter Gate for Moen 3800 Tub Spout
This is a leaner version of the 101237 kit for Moen 3800 owners who need the essential parts without extra pieces. It suits a straightforward replacement of a worn seal and gate.
Key specs
- 3 pieces in the package
- 101237 cup seal and diverter gate
- Plastic and rubber construction
Pros
- Clear model reference for Moen 3800 spouts
- Fewer parts keeps the purchase focused
- Plastic and rubber parts are simple to swap
Cons
- Limited to Moen 3800-compatible spouts
- Fewer spares than the four-piece version
2 Set Tub Spout Diverter Repair Kit, Bathroom Shower Bathtub Leaky Faucet Repair
2 Set Tub Spout Diverter Repair Kit, Bathroom Shower Bathtub Leaky Faucet Repair Includes Diverters Valve Stems Seals and Diverters Gates Leak Faucet Replacement Parts
This kit targets people repairing two spouts or wanting a backup set on hand. Its description emphasizes valve stems, seals and gates across both sets.
Key specs
- Two sets in the package
- Includes valve stems, seals and gates
- Designed for bathroom shower and bathtub leaks
Pros
- Two complete sets cover a second fixture or a spare
- Describes all three core components clearly
- Works for shower and tub diverter leaks
Cons
- Universal fit may need careful matching
- Specific brand compatibility is not clearly stated in the listing name
Shower Diverter Repair Kit, Leaky Bathtub Faucet Replacement Parts (2pcs)
Shower Diverter Repair Kit, Leaky Bathtub Faucet Replacement Parts, Bathtub Spout for Fixing 2pcs Tub Spout Diverter Repair Kit, 2 Valve Stems, 2 Seals & Diverter Gates
This kit suits owners whose diverter stem has worn and who want a matched pair of stems and seals. It is a practical choice when the failure is concentrated in the internal valve.
Key specs
- 2 valve stems
- 2 seals
- Diverter gates included
Pros
- Stem-focused kit addresses the most common internal wear
- Two sets allow a repeat repair later
- Clearly lists the parts in the name
Cons
- Compatibility depends on matching your spout design
- Owners often say measuring the old stem first avoids mismatches
QWORK Tub Spout Diverter Repair Kit 2-Set Replacement
QWORK Tub Spout Diverter Repair Kit 2-Set Replacement – Metal Valve Stem, Gate and Cup Seal for Leaky Bathtub Faucet – Universal Repair Parts for Home Bathroom
This kit is for owners who prefer a metal valve stem over plastic. It fits people who want a sturdier internal component and are willing to check fit before installing.
Key specs
- Metal valve stem
- Cup seal and gate included
- Two-set package
Pros
- Metal valve stem is often preferred for durability
- Two sets provide spares
- Described as a universal replacement for bathroom spouts
Cons
- Universal fit requires checking your spout before ordering
- Metal parts may cost more in use than plastic in some setups, depending on the spout
Buying Guide
Selection Criteria
Start by deciding whether you need one part or several. A single worn cup seal calls for a small kit, while a diverter that drips from the spout even when the shower is off often points to a worn stem. Check that the kit lists the component you need, not just a generic bundle.
Important Features
- Valve stem: controls the flow path between tub spout and showerhead. Metal and plastic versions are both common.
- Cup seal: a rubber seal that prevents water from bypassing the diverter.
- Diverter gate (door): the part that directs water up or out the spout.
- Spare sets: useful if you may need to repeat the repair or work on a second fixture.
Specs to Check
- Your spout brand and model, often stamped inside the spout or on the old part
- Part numbers such as 101237 for Moen 3800-style spouts
- Finish (chrome, classic) so the new part matches visible hardware
- Whether the kit is labeled universal or model-specific
Choosing by Need
If you know your spout brand and part number, choose a model-specific kit. If you do not, a universal two-set kit gives you the best chance of finding a workable fit and a spare.
Things to Watch Out For
- Universal kits can require trimming, adjustment or a second attempt.
- Installing a stem with the wrong thread or height may cause persistent leaks.
- If the spout body is cracked or corroded, a kit will not solve the problem.
If you are unsure about shutting off water or removing a spout, consult a licensed plumber.
For a broader look at repair options, see 7 Best Tub Faucet Repair Kits for Common Leaks and Drips (2026) and Repair Tub Faucet Drip: 7 Best Fixes and Replacement Parts Compared. If you own Delta fixtures, Delta Faucet Repair Kits: How to Choose and Use the Right One covers matching parts by model. For spout-specific parts, Delta Bathtub Faucet Replacement Parts: 7 Best Picks for Repairs is useful.
FAQ
How do I know which diverter kit to buy?
Identify your spout brand and model first, usually by checking the inside of the spout or the old part. If you find a part number like 101237, choose a kit that names it. Otherwise a universal kit is the more flexible starting point.
What are the signs I need a diverter repair kit?
Common signs include water coming from the spout while the shower is running, a shower that will not hold pressure, or water dripping from the spout after you have turned the tub flow off. These usually point to a worn stem, seal or gate.
Can I use a universal kit on any tub spout?
Not always. Universal kits are designed to fit a range of spouts, but dimensions vary. Measure or compare the old stem and seal before ordering, and expect that some fits will need adjustment.
Is one stem and seal enough, or should I buy a two-set kit?
If only one part has failed and the rest look sound, a smaller kit is enough. A two-set kit is worth it if you want a spare, plan to repair a second spout, or are unsure which part is at fault.
Do I need to replace the whole spout?
Usually no. A diverter kit replaces internal parts. If the spout body is cracked, leaking at the joint, or corroded through, a replacement spout is the better fix.
Why does my tub spout still leak after replacing the parts?
Common causes include a mismatched stem height, a cup seal not seated correctly, or debris left in the valve. Reinstall carefully and check that the gate moves freely. If leaks continue, a licensed plumber can check the supply and valve.
Can I repair this myself?
Many homeowners handle diverter repairs with basic hand tools, but shutting off the water and removing a spout can be tricky. If you are not comfortable with plumbing work, consult a professional.
Conclusion
For owners of Moen 3800-style spouts, the model-specific 101237 kits make matching easier, with the four-piece version offering spares. For uncertain or mixed spouts, a universal two-set kit gives you flexibility and a backup. If you only need to replace one worn part and the rest of the valve looks sound, a minimal single-stem kit keeps the purchase focused. Whichever you choose, confirm your spout design first, since compatibility is the most common reason a repair fails.
