By Caleb MorganUpdated November 2026
Bathroom tub faucet repair usually comes down to one of three problems: a drip from the spout, water that keeps coming out of the spout when you switch to the shower, or a handle that feels loose or stiff. The right part depends on which of those you have, so this guide compares six repair kits and replacement parts that address the most common failures. Selection criteria were specification clarity, compatibility with standard tub spouts and diverters, the completeness of each kit, and patterns in owner feedback about fit and durability. None of these products were tested by our team; the comparison is based on listing details, manufacturer-style specifications and reported owner experience.
Our top picks at a glance
- 1
TOP CHOICEBest overallShower Diverter Repair Kit, Leaky Bathtub Faucet Replacement Parts, BaView on Amazon - 2
TOP CHOICEBest for small bathroomsEnhon 2 Set Tub Spout Diverter Repair Kit (Chrome, Classic)View on Amazon - 3
TOP CHOICEBest budget pickReplacement for Shower Bathtub Faucet Diverter or Plumbing Fixture uxcView on Amazon - 4
Best for Moen tub spoutsDiverter Valve Repair Kit, Plastic & Rubber, Bathroom, Sink Faucet ParView on Amazon - 5
Best for compression-style valves8 Pack Spring Kit Faucet Stem Assembly Repair Kits Replacement Seats aView on Amazon - 6
Best for cartridge-style handlesHome Impressions Washerless Cartridge Faucet Repair KitView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Shower Diverter Repair Kit (Leaky Bathtub Faucet Replacement Parts) | Diverter leaks from the spout | Two valve stems, two seals and two gates |
| 8 Pack Spring Kit Faucet Stem Assembly Repair Kits | Compression-style stem and seat repairs | Eight seats and springs in one pack |
| Enhon 2 Set Tub Spout Diverter Repair Kit (Chrome, Classic) | Small bathrooms with limited access | Matched chrome finish across the set |
| Diverter Valve Repair Kit, Plastic and Rubber, 101237 | Moen-style tub spouts | Cup seal and diverter gate sized for Moen 3800 |
| Home Impressions Washerless Cartridge Faucet Repair Kit | Single-handle cartridge faucets | Washerless cartridge replacement |
| uxcell 2Set Cup Seal and Diverter Gate Shower Tub Spout Repair Kit | Budget diverter repairs | Two complete seal and gate sets |
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
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
Best for: Diverter leaks from the spout and general bathtub spout repair.
This kit suits homeowners who notice water leaking from the spout while the shower is running, or a weak shower flow after switching the diverter. The two-set layout gives you spares if one stem or gate is damaged during removal.
Key specs:
- Includes 2 valve stems, 2 seals and 2 diverter gates
- Designed for standard tub spout diverter assemblies
- Replacement parts only, no tools included
Pros:
- Two complete sets allow a spare if a part is damaged
- Covers the three most common diverter wear points
- Clear listing description of included components
Cons:
- Compatibility depends on matching your spout model
- Some owners report that the gates need a snug fit to avoid bypass
Bottom line: A strong first choice for most homeowners with a diverter that leaks or fails to fully redirect water to the shower.
8 Pack Spring Kit Faucet Stem Assembly Repair Kits Replacement Seats and Springs Faucet Seat Repair Kit for Kitchens, Bathrooms, Bathtubs, Shower Faucets
8 Pack Spring Kit Faucet Stem Assembly Repair Kits Replacement Seats and Springs Faucet Seat Repair Kit for Kitchens, Bathrooms, Bathtubs, Shower Faucets Applications
Best for: Compression-style stem and seat repairs where a drip persists after closing the handle.
Suited to households with older compression faucets, where worn seats and springs are the usual cause of a drip. The eight-piece count gives you enough spares for several fixtures.
Key specs:
- Eight pack of replacement seats and springs
- Listed for kitchens, bathrooms, bathtubs and shower faucets
Pros:
- Multiple pieces for several repairs
- Useful for the seat-and-spring failure most common in compression valves
- Low-cost way to replace worn internal parts
Cons:
- Only useful if your faucet is compression-type; cartridge faucets need a different kit
- Assortment of sizes requires matching to the existing seat before installation
Bottom line: Best for owners who have confirmed their tub handle is a compression design and want spares on hand.
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)
Best for: Small bathrooms with limited access to the spout.
A good match for compact bathrooms where the tub spout is hard to reach and you want a matched chrome finish on exposed parts. The two-set format keeps replacements consistent.
Key specs:
- Two sets, each with a valve stem, cup seal and diverter gate
- Chrome finish listed
Pros:
- Matching finish reduces visible mismatch on the spout
- Complete sets reduce the chance of missing a part mid-repair
- Straightforward listing with clear component count
Cons:
- Chrome finish may not match brushed or oil-rubbed fixtures
- Fit depends on your specific diverter design
Bottom line: A sensible pick if your fixture is chrome and access is tight, and you want a full set in one package.
Diverter Valve Repair Kit, Plastic and Rubber, Bathroom Sink Faucet Parts, Shower Repair Replacement Parts 4 Pcs 101237 Cup Seal and Diverter Gate 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
Best for: Moen-style tub spouts, particularly where the diverter gate has worn or the cup seal has split.
This kit is listed for the Moen 3800 tub spout, so it fits households with that specific fixture. It is a targeted repair rather than a general-purpose assortment.
Key specs:
- Four pieces including cup seal and diverter gate
- Plastic and rubber construction
- Listed part number 101237 for Moen 3800 tub spouts
Pros:
- Model-specific listing reduces guesswork
- Covers the two parts most often replaced on Moen diverters
- Small, inexpensive way to fix a common leak
Cons:
- Only suitable if your spout matches the listed Moen model
- Does not include a full valve stem set
Bottom line: Choose this if you have a Moen tub spout and have confirmed the 101237 match before ordering.
Home Impressions Washerless Cartridge Faucet Repair Kit
Home Impressions Washerless Cartridge Faucet Repair Kit
Best for: Single-handle cartridge faucets where the handle drips or feels stiff.
Designed for washerless cartridge faucets, which many tub-and-shower combinations use. A cartridge replacement is often the fix when the handle leaks even though the spout is in good shape.
Key specs:
- Washerless cartridge repair kit
- Intended for single-handle cartridge faucet designs
Pros:
- Addresses a common cause of handle leaks and stiffness
- Washerless design eliminates a frequent wear point
- Replacement is typically a single-part swap
Cons:
- Cartridge brands are not interchangeable; the match must be confirmed
- Does not repair diverter or spout leaks
Bottom line: The right choice for a cartridge-style handle that leaks, provided you identify the cartridge brand first.
Replacement for Shower Bathtub Faucet Diverter or Plumbing Fixture uxcell 2Set Cup Seal and Diverter Gate Shower Tub Spout Repair Kit Parts
Replacement for Shower Bathtub Faucet Diverter or Plumbing Fixture uxcell 2Set Cup Seal & Diverter Gate Shower Tub Spout Repair Kit Parts
Best for: Budget diverter repairs without buying a full faucet.
A practical option for renters or homeowners who want a low-commitment fix for a leaking diverter. The two-set format gives you a spare.
Key specs:
- Two sets of cup seal and diverter gate
- Listed for shower and bathtub diverter applications
Pros:
- Simple two-part replacement for a common leak
- Two sets allow a spare for trial fitting
- Easy to identify what you are replacing
Cons:
- Does not include valve stems, so stem wear needs a separate part
- Fit varies between spout brands
Bottom line: A budget-minded choice for a diverter that leaks around the gate, not for stem or handle problems.
Buying Guide
Identify the Type of Faucet First
Bathtub faucets use either compression stems, washerless cartridges or ceramic disc valves. Compression handles have two separate handles with rubber washers; cartridge handles usually have one handle that moves up and down or side to side. Pull the handle and look at the stem or cartridge before buying anything.
Good picks for this: Home Impressions Washerless Cartridge Faucet Repair Kit, 8 Pack Spring Kit Faucet Stem Assembly Repair Kits
Diverter Versus Valve Leaks
Water coming from the spout while the shower runs points to a diverter problem. Water dripping from the spout when the tub is off usually means a valve or seat problem. Test by running the shower and watching whether the spout keeps dripping.
Good picks for this: Shower Diverter Repair Kit (Leaky Bathtub Faucet Replacement Parts), Diverter Valve Repair Kit 101237
Spout and Fixture Brand Match
Diverter gates and cup seals differ between brands and even between models within a brand. Note the brand stamped on the spout, then compare part numbers. Moen 3800-series parts, for example, are not interchangeable with most other spouts.
Good picks for this: Diverter Valve Repair Kit 101237, Enhon 2 Set Tub Spout Diverter Repair Kit
Kit Completeness
A kit with two sets of parts lets you test fit a spare if one part is damaged during removal. Single-part kits are cheaper but leave you without a backup if the part is the wrong size.
Good picks for this: Shower Diverter Repair Kit (Leaky Bathtub Faucet Replacement Parts), uxcell 2Set Repair Kit
Finish and Visual Match
Chrome, brushed nickel and oil-rubbed finishes vary. Exposed parts such as a diverter gate or spout cap can show a mismatch. Check whether the kit lists a finish and whether it matches your fixture.
Good picks for this: Enhon 2 Set Tub Spout Diverter Repair Kit
Durability and Materials
Rubber seals and plastic gates wear with mineral deposits and heat cycles. Owners often report that plastic gates crack earlier in hard-water areas. Silicone and brass components generally last longer, though kit listings vary in detail.
Good picks for this: Diverter Valve Repair Kit 101237, Shower Diverter Repair Kit (Leaky Bathtub Faucet Replacement Parts)
Care and Maintenance After Repair
After replacing parts, flush the lines, open the faucet fully for a minute and check for leaks at the spout and handle. Avoid overtightening, which can crack plastic gates or damage seals.
Good picks for this: Home Impressions Washerless Cartridge Faucet Repair Kit, Replacement for Shower Bathtub Faucet Diverter uxcell 2Set
FAQ
Can I repair a tub faucet without shutting off the water?
No. Shut off the supply valves under the tub or at the main, then open the faucet to drain remaining water. Working with pressurized lines risks flooding and damage.
How do I know if the diverter or the valve is leaking?
Run the shower and watch the spout. If water keeps flowing from the spout while the shower runs, the diverter is likely failing. If the spout drips with the handle off, the valve or seat is the more likely cause.
Do I need the exact brand of replacement part?
Often yes. Diverter gates, cup seals and cartridges differ by brand and model. Match the part number on the old part or the fixture when possible.
Is a full faucet replacement better than a repair kit?
Not always. If the body is cracked, corroded or the valve housing is damaged, replacement is more reliable. For worn seals, gates or cartridges, a repair kit is usually enough.
How long should a tub faucet repair last?
Results depend on water quality, the part quality and installation. Owners commonly report that quality seals and gates last several years, but hard water can shorten that. Check the repair periodically.
When should I call a licensed plumber?
If you smell gas, see water damage behind walls, cannot shut off the supply, or the valve body is corroded, consult a licensed plumber. Local codes may also apply to changes in supply lines.
Conclusion
For most leaking diverters, the Shower Diverter Repair Kit offers the most complete set of parts. Compression-style faucets fit the spring kit, Moen 3800 owners should choose the 101237 kit after confirming the model, and cartridge handles need the washerless cartridge kit. Start by identifying your faucet type and whether the leak is at the spout or the handle, then choose the kit that matches. When in doubt, check part numbers before ordering.
Sources
- Water conservation and fixture leak guidance, including how leaks waste water (epa.gov)
- Consumer safety information on plumbing and home repair hazards (cpsc.gov)
- Plumbing code and standards background for fixture installation
Related reading
- Delta Bathroom Tub Faucet Parts: 8 Best Replacements Compared
- Bathroom Moen Faucet Repair: Lever Handle Kit Review (2026)
- 7 Best Delta Bathroom Tub Faucets for Every Need: Expert Picks
- Repair Tub Faucet Drip: 7 Best Fixes and Replacement Parts Compared
- Repair Delta Tub Faucet: 7 Best Kits and Parts Compared (2026)
About Caleb Morgan
Caleb Morgan is part of our editorial team and reviews and edits our kitchen faucets & sinks guides, checking product details against manufacturer specifications and owner feedback.
