By Caleb MorganUpdated November 2026
If you need to replace a Delta tub faucet, the first job is figuring out which part has actually failed. Most tub faucet problems come down to a worn spout, a dripping shower cartridge, or a stem assembly that no longer seals. This guide compares five Delta replacement parts sold on Amazon US, chosen by how well each matches a common repair need, the specifications the manufacturer lists, and the patterns that owners tend to describe in their feedback. Use it to match the part to your problem before you buy.
Our top picks at a glance
- 1
TOP CHOICEBest overallDelta Faucet RP46074 TUB SHOWER CARTRIDGE, 1, WhiteView on Amazon - 2
TOP CHOICEBest for spout replacementDelta Faucet RP17453 TUB SPOUT, One Size, ChromeView on Amazon - 3
TOP CHOICEBest for stem-style repairsDELTA FAUCET RP25513 Stem Assembly, One SizeView on Amazon - 4
Best for a finish matchDelta Faucet RP34357RB, Venetian Bronze, 0.5View on Amazon - 5
Best budget pickDELTA FAUCET RP5836, ChromeView on Amazon
Our Top Picks
Quick Comparison
| Product | Best for | Key feature |
|---|---|---|
| Delta Faucet RP17453 Tub Spout | Spout replacement | Single-size tub spout in chrome |
| Delta Faucet RP46074 Tub Shower Cartridge | Drips and shower diverter problems | Replacement cartridge in white |
| DELTA FAUCET RP5836 | Budget repairs | Chrome finish, straightforward part |
| Delta Faucet RP34357RB | Matching a bronze finish | Venetian Bronze finish |
| DELTA FAUCET RP25513 Stem Assembly | Stem-style leaks | Stem assembly for compression-type valves |
Delta Faucet RP46074 TUB SHOWER CARTRIDGE, 1, White
Delta Faucet RP46074 TUB SHOWER CARTRIDGE, 1, White
Best for: Stopping drips and fixing shower diverter problems
This is the part to consider when water keeps leaking from the spout or the shower head when the diverter is off. Cartridge failure is the most common cause of tub faucet leaks, and a cartridge swap is often the repair that stops the problem outright. Check your existing cartridge model before buying, because Delta uses several cartridge designs.
Key specs
- Tub and shower cartridge replacement
- Quantity: 1
- Finish: White
Pros
- Addresses the most common cause of drips
- Single-part swap with no need to replace the whole valve body
- Clear listing name makes it easier to confirm compatibility
Cons
- Only useful if the cartridge is the failed component
- Requires removing the handle and trim to access it
Bottom line: A strong first choice for anyone whose tub or shower faucet drips after the handle is closed.
Delta Faucet RP17453 TUB SPOUT, One Size, Chrome
Delta Faucet RP17453 TUB SPOUT, One Size, Chrome
Best for: Replacing a worn, cracked or leaking tub spout
If the spout itself is loose, cracked or leaking at the threads, replacing the spout is simpler than a full valve repair. This suits homeowners who want a direct swap without opening the wall.
Key specs
- Tub spout replacement
- One size
- Finish: Chrome
Pros
- Quick way to fix a loose or leaking spout
- Chrome finish suits most Delta bath trim
- No wall opening needed for a spout-only swap
Cons
- Does not fix leaks coming from the valve or cartridge
- Threads must be measured to confirm fit on older spouts
Bottom line: Pick this if the spout is the only visibly damaged part.
DELTA FAUCET RP5836, Chrome
DELTA FAUCET RP5836, Chrome
Best for: Lower-cost repairs on a standard chrome Delta fixture
This is a practical budget pick for a homeowner who has already diagnosed the failure and wants a matching chrome part without paying for a premium kit.
Key specs
- Replacement part for Delta tub faucet
- Finish: Chrome
Pros
- Budget-friendly option for routine repairs
- Chrome finish matches most Delta bath hardware
- Simple part number for easy identification
Cons
- Listing details are limited, so confirm the part number against your old one
- Not suited to multi-part overhauls
Bottom line: A sensible choice when you know the exact part you need and want to keep costs modest.
Delta Faucet RP34357RB, Venetian Bronze, 0.5
Delta Faucet RP34357RB, Venetian Bronze,0.5
Best for: Replacing a part while matching a Venetian Bronze finish
Bronze finishes wear differently from chrome and are harder to match with generic parts. This option is aimed at homeowners whose tub trim is already Venetian Bronze and who want the replacement to blend in.
Key specs
- Finish: Venetian Bronze
- Listed size: 0.5
Pros
- Finish matches Venetian Bronze Delta trim
- Avoids visible mismatch on a bronze fixture
- Clearly labeled part for finish-specific buyers
Cons
- Narrow appeal outside bronze fixtures
- The listed size should be checked against the original part
Bottom line: Choose this when finish matching matters more than anything else.
DELTA FAUCET RP25513 Stem Assembly, One Size
DELTA FAUCET RP25513 Stem Assembly, One Size
Best for: Fixing a stem-type valve that drips or is hard to turn
Stem-type (compression) Delta valves wear out at the stem and washer. If the handle feels gritty or water leaks when the faucet is off, a stem assembly is often the right part to try before replacing the whole valve.
Key specs
- Stem assembly replacement
- One size
Pros
- Targets the stem, a common leak point on older valves
- Lets you repair without replacing the full faucet
- One-size listing keeps the choice simple
Cons
- Only suits stem-type valves, not cartridge designs
- Owners often report needing to confirm the stem model before ordering
Bottom line: Best for owners who have confirmed they have a stem-type Delta valve.
Buying Guide
Identify whether you have a stem or a cartridge valve
Before buying anything, remove the handle and look at the valve. A stem valve has a visible stem with a rubber washer at the bottom, and it is turned by a screw-in stem. A cartridge valve is a single plastic or brass unit that pulls out as one piece. Matching the part to the valve type prevents wasted orders.
Good picks for this: DELTA FAUCET RP25513 Stem Assembly, Delta Faucet RP46074 Tub Shower Cartridge
Check the part number against the old part
Delta uses many similar-looking parts across different models. Read the number stamped on the old part or in the manufacturer’s documentation for your faucet, then compare it to the listing before checkout. Mismatched parts are a common reason for returns.
Good picks for this: DELTA FAUCET RP5836, Delta Faucet RP17453 Tub Spout
Match the finish
Chrome, Venetian Bronze and white trim do not blend well with each other. Replacing only the failed component in a mismatched finish can look unfinished, so check the finish of the surrounding trim before ordering.
Good picks for this: Delta Faucet RP34357RB Venetian Bronze, DELTA FAUCET RP5836 Chrome
Diagnose the leak before you buy
A drip from the spout when the tub is off usually points to the cartridge or stem. A leak from the base of the spout points to the spout threads or gasket. Shower head leaks with the diverter on often point to the diverter or cartridge. Diagnosing first saves money and time.
Good picks for this: Delta Faucet RP46074 Tub Shower Cartridge, Delta Faucet RP17453 Tub Spout
Measure spout threads and fit
For spout replacements, check the thread size and the spout length. Older tub spouts vary, and a spout that looks similar may not thread on correctly. Measure the threaded opening and compare it to the listing before ordering.
Good picks for this: Delta Faucet RP17453 Tub Spout, DELTA FAUCET RP5836
Plan for durability and care
Cartridges and stems last longer when water pressure is moderate and when sediment is kept out of the valve. Owners often report that cleaning the aerator and flushing the supply lines before installation helps new parts seal properly. Replacing the washer or O-rings at the same time as the main part is common advice.
Good picks for this: Delta Faucet RP46074 Tub Shower Cartridge, DELTA FAUCET RP25513 Stem Assembly
Consider the job size
A spout swap takes minutes with basic tools. A cartridge or stem replacement usually means removing the handle, trim and sometimes the escutcheon plate, which takes longer. If the valve body is corroded or cracked, a single part may not solve the problem, and a full valve replacement may be the better route. Consult a licensed plumber if you are unsure about shutoff valves or water damage behind the wall.
Good picks for this: Delta Faucet RP17453 Tub Spout, Delta Faucet RP34357RB Venetian Bronze
FAQ
How do I know which Delta tub faucet part I need?
Start by identifying the leak location and the valve type. A drip from the spout with the faucet off usually means a cartridge or stem. A leak at the spout base suggests the spout itself. Compare the part number on the old component to the listing before ordering.
Can I replace a Delta tub faucet cartridge myself?
Many homeowners can replace a cartridge with basic hand tools, usually a screwdriver, an Allen wrench and a cartridge puller. Shut off the water supply first and keep the handle and trim parts organized. If the valve is corroded or the shutoff valves do not close fully, call a licensed plumber.
Do I need to replace the whole faucet when a part fails?
Not always. Spouts, cartridges and stems are designed to be replaced individually. If the valve body is cracked or the trim is severely damaged, a full replacement may be more practical.
Why does my Delta tub faucet still drip after replacing the cartridge?
Common causes include a misaligned cartridge, debris trapped in the valve, or a worn seat or O-ring that was not replaced. Turn the water off, reseat the cartridge carefully, and check that the handle is fully closed. Persistent drips after a clean install may need professional diagnosis.
Is a Venetian Bronze replacement part interchangeable with chrome?
The internal parts may be compatible within the same Delta model line, but the finish will not match. For a visible spout or trim piece, choose the finish that matches your existing hardware.
Should I replace the washers and O-rings at the same time?
Many plumbers recommend replacing small seals whenever the valve is opened, because they wear out at similar rates and are inexpensive. Check the repair kit contents before you start so you do not need a second trip to the store.
Conclusion
When you replace a Delta tub faucet, match the part to the actual failure. The Delta Faucet RP46074 Tub Shower Cartridge suits drip and diverter problems, the Delta Faucet RP17453 Tub Spout suits loose or leaking spouts, and the DELTA FAUCET RP25513 Stem Assembly suits stem-type valves. The DELTA FAUCET RP5836 is a practical budget pick for routine chrome repairs, and the Delta Faucet RP34357RB Venetian Bronze suits finish-matched repairs. Confirm the valve type and part number first, and call a licensed plumber if the valve body is damaged or the water shutoff does not work.
For related repair steps, see Repair Delta Tub Faucet: 7 Best Kits and Parts Compared (2026), Delta Bathtub Faucet Cartridge: How to Replace One in 6 Steps, and Repair Tub Faucet Drip: 7 Best Fixes and Replacement Parts Compared.
Sources
- Guidance on water conservation and fixture leak detection for household plumbing (epa.gov)
- Safety information on household water fixtures and installation hazards (cpsc.gov)
- Standards and certification information for drinking water system components (nsf.org)
Related reading
- Replace Delta Faucet Stem: 7 Best Repair Kits Compared for 2026
- How to Replace a Delta Kitchen Faucet Cartridge in 6 Steps (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.
