Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
A dripping bathroom faucet is rarely a broken faucet — it’s usually one worn-out internal part, and swapping it is a 15-minute job you can do yourself. The hard part is knowing which cartridge, stem, or washer your specific faucet needs, and that’s exactly where most bathroom faucet parts buying goes wrong. This guide breaks down the actual repair components that fix leaks, drips, and stiff handles, so you can walk into the job with the right part the first time.
I’m Mohammad Maruf — the founder and writer behind KitchPrep. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
To stop a leak or fix a stiff handle on your two-handle bathroom faucet, you need the right bathroom faucet parts—and that means matching the internal cartridge (the valve core that controls water flow) to your Moen or Delta model before you order.
Our Picks at a Glance
How To Choose The Best Bathroom Faucet Parts
The right repair part is defined by your faucet’s brand and internal design, not by the symptom alone. A drip can come from a worn rubber washer or a failed cartridge, so the first step is always identifying what’s inside your handle.
Match the part to your faucet brand
Moen and Delta dominate the market, and each uses its own internal system. Moen two-handle faucets typically use a cartridge like the 1234 or 1224, while Delta two-handle models use a stem and seat assembly like the RP1740 or RP25513. Installing a Moen part into a Delta faucet won’t work, so check the brand name on the faucet body before ordering.
Understand the difference between cartridges and stems
A cartridge is the self-contained valve core that controls water flow and temperature, and it’s the whole unit you pull out and replace. A stem is the part of a Delta two-handle system that turns against a separate rubber seat, and repairing it often means replacing both the stem and the seat together. Kits that bundle multiple components are usually the smarter buy for two-handle faucets.
Watch the package contents
Many repair parts ship as a single unit, which matters if you have two handles to fix. A two-pack covers both hot and cold sides, while some kits include extra seats and springs. Read the package contents carefully so you’re not ordering twice.
Quick Comparison
| Model | Best For | Repair Type | Compatibility | Package Contents | Amazon |
|---|---|---|---|---|---|
| XBVV Washers & O-Rings Kit★ Best Overall | Whole-home rubber seal stockpile | Washers / O-rings | Universal | 1075 pieces | Amazon |
| Moen 1234 Duralast CartridgeGenuine OEM | Genuine Moen two-handle repair | Cartridge | Select Moen 2-handle | 1 cartridge | Amazon |
| RP1740 Stem Repair KitValue 2-Pack | Delta two-handle drip repair | Stem + seat + spring | Delta 2-handle | 2 stems, 2 seats, 2 springs | Amazon |
| RP25513 Faucet Stem | Heavy-duty Delta rebuild | Cartridge + seat + spring | Delta 2-handle | 2 cartridges, 2 stops, 2 seats, 2 springs | Amazon |
| 1224 1224B Moen Cartridge | Budget Moen two-handle replacement | Cartridge | Moen 1224/1224B | 2 cartridges | Amazon |
| Moen 1225 Shower Cartridge | Single-handle shower drips | Cartridge | Moen 1225/1225B | 2 cartridges, 2 clips, 2 caps | Amazon |
| Enhon Moen 1224 Tub Kit | Tub faucet + removal tool | Cartridge | Moen 1224/1224B, 14272 | 2 cartridges, 1 removal tool | Amazon |
| RP46074 Delta Shower Valve | Single-handle Delta shower rebuild | Cartridge assembly | Delta 13/14 series, MultiChoice | 1 cartridge, 2 Allen wrenches, O-rings, screws | Amazon |
| RP50587 Delta Cartridge | DST single-handle kitchen/lav faucets | Cartridge + bonnet nut | Delta DST models | 1 cartridge, 1 bonnet nut, 1 Allen wrench, screws | Amazon |
In‑Depth Reviews
1. XBVV 3-in-1 Washers & O-Rings Kit
Our pick — over 4.5★ from 700+ verified ratings; the strongest balance of quality and price.
The 1075-piece grab bag that makes you ready for nearly any seal that gives out
This kit earns the top spot because it solves the problem before you’ve even diagnosed it. Instead of guessing which single washer size your drip needs, you get 1075 pieces covering 18 types of rubber O-rings, 10 beveled and flat faucet washer sets, and 14 plumbing washer kits. That variety is what owners rave about most — it’s the confidence of knowing the right size is probably already in the box.
The NBR rubber parts resist heat and oil, and the 6 included brass screws won’t corrode. Buyers report the range of sizes is the main draw, covering everything from sink supply lines to 3/4” garden hose separators. It’s a true whole-house kit, not a single-repair solution, and for a one-time purchase it means most future drips cost you nothing but a few minutes.
The honest trade-off is that some specific oddball sizes still won’t be in the box — owners have noted needing a trip to the hardware store for unusual washers. But with 1075 pieces and the variety owners praise, it’s the rare repair part that pays for itself by just sitting in a drawer.
What makes it a kit worth owning
- 1075-piece count covers most household plumbing seal needs
- 6 brass screws included are corrosion-resistant
- NBR O-rings resist heat and oil for longer life
Where it falls short
- Some uncommon sizes still missing, per owner reports
- Not a single-faucet fix — it’s an assortment, not a matched set
Reach for it when: you want one box of universal rubber seals that covers sinks, showers, outdoor spigots, and washing machine lines.
Think twice if: you’ve already confirmed your faucet needs a specific cartridge — then a matched repair kit is the focused buy.
2. Moen 1234 Duralast Two-Handle Replacement Cartridge
The genuine article for Moen owners who want zero guesswork on fit
When your faucet says Moen, a genuine Moen part removes the biggest variable in any repair: compatibility. This 1234 Duralast cartridge is built to restore proper operation in select two-handle Moen faucets, and it works on either the hot or cold side. Owners mention installations that have held up for years — some report five years of steady use with no drips or squeaks.
What buyers consistently praise is the quality of the genuine build versus aftermarket alternatives. The Duralast construction is designed for high-use environments, and because it’s a true Moen part, the fit is exact. Installation is straightforward: remove the handle, match the cartridge stem to verify fit, and swap it in.
There’s one detail to flag before you buy: this package contains a single cartridge, and some owners were surprised it didn’t come as a pair. If you’re fixing both handles on a two-handle faucet, you’ll need two of these. It’s also note that quality feedback spans both long-lasting performance and occasional reports of squeaking, particularly on the hot water side.
Why genuine matters here
- Exact Moen fit with no aftermarket guesswork
- Lever handle type for smooth flow and temperature control
- Customers note multi-year service without drips
What to check first
- Ships as one cartridge, not a two-pack for both handles
- Some reviewers point out squeaking on the hot side
Pick this if: you want the reliability of a factory part inside a specific Moen two-handle model.
Look elsewhere if: you’re repairing a Delta faucet or want a two-pack to fix both handles at once.
3. RP1740 Stem Repair Kit for Delta 2-Handle
A featherweight Delta stem kit at 0.634 ounces that fixes drips with a light touch
For Delta two-handle faucets, the RP1740 is the classic drip-stopper, and this kit bundles everything the job needs in one small package. Each pack includes 2 stems, 2 seats, and 2 stainless springs — exactly what you need to repair both the hot and cold sides. At just 0.634 ounces, this kit is lighter than the 2.46-ounce RP25513 rebuild kit, yet shoppers say it stops drips with minimal effort.
The standout feedback is how easy the fix feels. Owners describe faucets that turn easier after installation because the new stem doesn’t require heavy pressure to tighten down, and the slow drip that had developed stops completely. The kit has revived Delta faucets decades old — some owners have used it successfully in 35-year-old fixtures with a perfect fit.
The trade-off is subtle: a few owners note the replacement feels just a bit stiffer than the Delta OEM version, though it’s only noticeable if you replace one of two handles at a time. Before installing, clean out any metal shavings, grit, or mineral buildup from inside the faucet valve so the new parts seat properly.
Why this kit wins on value
- Includes stems, seats, and stainless springs for a full fix
- 2-pack covers both handles on a two-handle faucet
- Buyers report easier handle turns after install
The honest caveat
- Slightly stiffer feel than the Delta OEM stem
- Best results require cleaning the valve interior first
Choose this for: a budget-minded Delta two-handle drip fix where you want both sides covered in one order.
skip it if: your faucet needs a more complete rebuild — the heavier RP25513 kit below offers a beefier assembly.
4. RP25513 Faucet Stem for Delta 2-Handle
The beefier Delta rebuild at 2.46 ounces for faucets that need extra strength
If your Delta two-handle faucet is dripping and you want a more complete rebuild, this RP25513 kit steps up the hardware. At 2.46 ounces, it’s about four times heavier than the RP1740 kit, thanks to a brass stem and stainless steel plate for extra durability. The package includes 2 cartridges, 2 quarter-turn stops, 2 rubber seats, and 2 springs — everything to repair a stem, spring, or seat failure on both hot and cold sides.
Owner feedback is overwhelmingly about how well it works and how easy it is to install. Many report completing both cartridge replacements in about 15 minutes, and the kit has fixed leaks in everything from laundry sinks to Roman bathtubs. The value pitch is strong — owners note it beats paying for professional plumbing service, and the included parts make it a complete job in one box.
The practical advice from experienced owners is to remove any mineral deposits from inside the faucet assembly before installing the new cartridges, and to correctly orient the cartridge inserts. Doing so means the new brass parts seat cleanly and the drip stays fixed.
What the extra weight buys you
- Brass stem and stainless steel plate for durability
- Full kit covers cartridge, stop, seat, and spring
- Owners mention ~15-minute installs on both handles
Install notes
- Must clean mineral deposits from valve first
- Cartridge orientation matters for correct install
Grab this for: a high-use Delta two-handle faucet where you want brass-grade durability over the lighter RP1740 kit.
Consider the lighter kit if: your drip is minor and you prefer the easier-turning feel customers note with the RP1740.
5. 1224 1224B Faucet Cartridge for Moen Two Handle
Two Moen-compatible cartridges for less than the price of one at the big-box store
For Moen two-handle faucets, this 1224 replacement is the budget-conscious choice that doesn’t skimp on coverage. The cartridge pairs metal and plastic construction for a durable, long-lasting repair.
The replacement process fits nearly all two-handle Moen faucets and tub/showers, with most owners reporting they swapped both parts in under ten minutes. The kit even works with the Moen Brantford bathroom faucet, one of the more common two-handle models, and includes instructions to guide you through the swap. The hardest part, as owners note, is pulling the old cartridge out — a job made easier by watching a quick video.
Feedback on leak-stopping is where this one splits: many report the cartridge stops drips completely, while others find it still allows some water through. For the price and the two-pack value, it’s a sensible first try for a Moen two-handle drip before you pay more for OEM parts. Take your time and go easy on the install, and it handles the job well.
Why the two-pack wins
- 2 cartridges cover both handles at budget cost
- Metal and plastic build for lasting repair
- Reviewers point out installs under ten minutes
Know before you buy
- Some shoppers say drips persist after install
- Older cartridge removal can be the toughest step
Best value for: a Moen two-handle faucet owner who wants both cartridges in one budget-friendly order.
Consider genuine Moen if: you’ve tried aftermarket cartridges before and still have a stubborn drip — OEM fit may resolve it.
6. Moen 1225 Shower Cartridge Replacement
The brass-core shower cartridge that owners say beats the OEM part at a fraction of the cost
When a Moen single-handle shower starts dripping, this 1225/1225B cartridge is the fix that owners consistently praise. The package includes 2 cartridges, 2 retainer clips, and 2 white twisting caps — the caps are the clever part, designed to help you loosen old cartridges without damaging them. The 4.00-inch-long, 0.7-inch-wide cartridge features durable brass construction for long-lasting performance.
What sets this apart in owner feedback is the value story. Buyers report this cartridge performs better than the OEM Moen version they tried first, at roughly a quarter of the price. The package includes all the parts needed for the job, and even first-time replacers report success after watching a couple of videos and shutting off the water.
The honest split in feedback is durability — most owners find the faucet works like new after install, while a smaller group reports leaks returning after a few days of use. Pull the original cartridge first to confirm it matches, and keep the old lock pin since its shape can differ. For the price of a two-pack, it’s a low-risk first repair.
What owners love
- Brass construction built to last for years
- White twist caps make old cartridge removal easier
- Owners mention it outperforms the OEM Moen part
The durability caveat
- Some customers note leaks return after a few days
- Confirm shape matches original and keep the old lock pin
Reach for this if: you have a Moen 1225 single-handle shower drip and want a brass replacement with removal tools included.
Be cautious if: durability is your top concern — a minority of owners saw leaks return after a few days.
7. Enhon 2 Tub Faucet Cartridge with Removal Tool
A Moen tub cartridge kit that hands you the removal tool and gets the drip fixed fast
For a two-handle tub faucet that’s leaking, this Enhon kit is built around one clever addition: a metal retainer removal tool that makes pulling the old cartridge the easiest part of the job. The package includes 2 cartridges and 1 removal tool, sized to fit Moen 1224 and 1224B tub faucets as well as the Moen 14272. The cartridges use quality plastic, and the tool is metal so it can serve for a long time.
The included tool is the defining feature here. The repair sequence is simple: use the tool to pull the broken cartridge, put the new one in, and reinstall the handle. Some reviewers point out finishing the whole job in about ninety seconds, and the cartridge performs as well as the original equipment version. The 5-ounce kit is compact enough to fit in a work bag.
The tool functionality gets mixed reviews — some find it genuinely helpful while others call it useless for their specific faucet. Many owners also note the faucet turns easier after replacement, and the kit is priced at roughly half of what a Moen-branded cartridge would cost. If the tool doesn’t work on your setup, the cartridges themselves still do the job.
The tool makes the difference
- Metal removal tool eases old cartridge extraction
- 2 cartridges cover both tub handles
- Shoppers say some installs in about ninety seconds
Watch out for
- Tool doesn’t work on every faucet type
- No silicone grease supplied in the kit
Pick this for: a Moen 1224 tub faucet where you want both cartridges plus a tool to ease removal.
Look elsewhere if: your faucet isn’t a Moen 1224/1224B or 14272 — that’s the compatibility window.
8. RP46074 Delta Shower Valve Cartridge
A Delta shower valve rebuild that holds temperature steady and stops the leak on day one
For Delta single-handle tub and shower faucets, this RP46074 cartridge assembly is the leak fix that owners call a money-saver. The kit includes the cartridge, 2 Allen wrenches, waterproof seal O-rings, and screws, all built around a high-quality brass core with reinforced plastic. It’s a direct drop-in replacement designed for Monitor rough-in valves like the R10000, R1100, R1800, and R2200, plus most 13/14 series tub and shower faucets.
The defining spec here is the pressure-balanced performance. Its pressure-balanced design holds water temperature within ±3.6°F (±2°C), preventing sudden hot or cold surges when other fixtures are used. It also caps maximum hot water flow as a built-in scalding guard.
Owner feedback leans heavily on the value — many report saving hundreds of dollars they would have spent on a plumber, with some noting it costs roughly a third of the OEM price. A few report the water temperature fluctuated initially until they adjusted the hot water limiter, and some note the included O-rings run slightly undersized. Flush pipe debris and apply plumber’s grease before install for the cleanest result.
Why this rebuild stands out
- Pressure-balanced design holds water within ±3.6°F
- Tool-free drop-in install, no special tools needed
- Buyers report leak fixed on day one
Setup notes
- Some O-rings run slightly undersized
- Hot water limiter may need adjustment for steady temps
Choose this for: a Delta 13/14 series shower where you want pressure-balanced performance and leak repair in one drop-in part.
Think twice if: you have a 1300 or 1400 series valve — this kit excludes those models.
9. RP50587 Delta Cartridge with Bonnet Nut
A Delta DST cartridge that pairs a scalding guard with the bonnet nut you’d otherwise hunt for
For Delta DST single-handle kitchen and lavatory faucets, this RP50587 cartridge bundles in the one part people forget: the RP51503 bonnet nut. The kit includes the cartridge, bonnet nut, Allen wrench, and screws, giving you a complete swap in one box. Its built-in temperature limiter prevents scalding, and high-strength materials resist corrosion for long-term use.
Owners mention the handle turns smoothly, letting you set water temperature precisely without sudden hot or cold jumps. Customers note the swap takes about five minutes, and the cartridge’s rubber seal (the part that presses against the valve body) fully stops drips. The kit includes the bonnet nut (the retaining ring that holds the cartridge in place), so you avoid a second parts order—a real time-saver when you are mid-repair.
The compatibility warning is critical here: this fits DST model faucets and is NOT interchangeable with the DIAMOND Seal models. A small number of reviewers point out fit issues, including a set screw diameter that didn’t match their Delta 9178-DST and a bonnet nut that sat poorly. Check your exact faucet model before ordering, and the five-minute fix is genuinely within reach.
What’s in the box matters
- Includes RP51503 bonnet nut for a complete swap
- Built-in temperature limiter helps prevent scalding
- Shoppers say ~5-minute installs
Check compatibility first
- Fits DST only — NOT interchangeable with DIAMOND Seal models
- Some buyers report set screw size mismatches
Best for: a Delta DST faucet owner who wants the cartridge and bonnet nut together with a built-in scalding guard.
pass on it if: your Delta model uses DIAMOND Seal technology — this part won’t fit those faucets.
Understanding the Specs
Cartridge vs. Stem vs. Washer
The internal part your faucet needs depends on its brand and vintage. A cartridge is a self-contained valve core you pull out and replace whole — common in Moen two-handle and single-handle models. A stem is the rotating piece in Delta two-handle faucets that presses against a separate rubber seat. A washer is the flat rubber seal that can wear out on older compression-style faucets. Kits that bundle stems with seats and springs give you the complete repair in one box.
Package Contents and Two-Packs
Two-handle faucets need two matching parts — one for hot, one for cold — so a two-pack is often the smarter buy than a single cartridge. Some kits go further and bundle seats, springs, and even removal tools. Check the contents before ordering so you don’t end up making two purchases or a second trip to the hardware store.
FAQ
How do I know if my faucet needs a cartridge or a stem?
Will a Moen 1234 cartridge fit my Delta faucet?
How long does a faucet cartridge replacement last?
Do I need a special tool to remove an old cartridge?
Why does my faucet drip after installing a new cartridge?
What’s the difference between the Moen 1224 and 1225 cartridges?
Is a two-pack of cartridges worth buying for a two-handle faucet?
Will the RP50587 cartridge fit any Delta single-handle faucet?
Do universal washer kits replace the need for a specific cartridge?
Final Thoughts: The Verdict
For most people, the bathroom faucet parts winner is the XBVV 3-in-1 Washers & O-Rings Kit because its 1075 pieces cover nearly any rubber seal repair you’ll face across the whole house. If you want a precise Moen two-handle fix, grab the Moen 1234 Duralast Cartridge for genuine factory fit. And for a Delta two-handle drip, the RP1740 Stem Repair Kit is the value-packed 2-pack to reach for.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, KitchPrep earns from qualifying purchases. This does not affect which products we feature.
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