By Caleb MorganUpdated November 2026
Finding the right moen bath faucet replacement parts is mostly a matter of matching the part to the exact model and the specific problem you are fixing. A dripping tub spout, weak shower flow, a stiff handle or a stream that sprays sideways can each point to a different component, so a generic kit is not always the answer. This list covers six parts that show up most often in Moen bath and tub repairs. Selection was based on the function each part serves, how well its listing matches Moen’s published part numbers, reported fit patterns from owners, and the brand’s overall reputation for plumbing components. None of these items were installed or tested by our team.
Our top picks at a glance
- 1
TOP CHOICEBest overallDiverter Valve Repair Kit (Moen 3800 Tub Spout Compatible)View on Amazon - 2
TOP CHOICEBest for tub spout diverter problemsMoen 102568 Villeta Replacement PartView on Amazon - 3
TOP CHOICEBest for shower temperature controlMoen 1222 Posi-Temp Single-Handle Replacement CartridgeView on Amazon - 4
Best for brass valve replacementMoen 1225 Magnum One-Handle Faucet Cartridge Replacement KitView on Amazon - 5
Best budget pickMoen 116711 Faucet Aerator 1.5 GPM (2 Pcs)View on Amazon - 6
Best for specialty bath valve repairsMoen 140710 Replacement PartView on Amazon
Our Top Picks
| Product | Best for | Key feature |
|---|---|---|
| Diverter Valve Repair Kit (4 pcs) | Tub spout diverter leaks | Cup seal and diverter gate set for Moen 3800 spouts |
| Moen 102568 Villeta Replacement Part | Bath valve component swaps | Direct Moen-numbered replacement component |
| Moen 1222 Posi-Temp Cartridge | Shower temperature stability | Pressure-balancing Posi-Temp cartridge |
| Moen 1225 Magnum Cartridge Kit | Brass one-handle valves | Brass body and cartridge kit |
| Moen 116711 Faucet Aerator (2 pcs) | Low-flow spout tips | 1.5 GPM flow rating |
| Moen 140710 Replacement Part | Specialty bath valve repairs | Manufacturer-numbered part for matching valves |
Diverter Valve Repair Kit (Moen 3800 Tub Spout Compatible)
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: Tub spout diverter leaks and water that keeps coming out of the spout while the shower is running.
This kit is aimed at homeowners who see water leaking from the tub spout when the shower is on, or who notice the diverter not sealing fully. It includes a cup seal and diverter gate set labeled for Moen 3800 tub spouts, which makes it a focused repair rather than a full replacement.
Key specs
- 4 pieces, plastic and rubber construction
- Cup seal and diverter gate included
- Labeled compatibility with Moen 3800 tub spout
Pros
- Addresses the most common tub spout diverter failure
- Low-cost repair compared with replacing the whole spout
- Simple to install with basic hand tools
Cons
- Only fits spouts that match the 3800 design
- Does not repair cartridge or valve body leaks
Bottom line: A good first purchase if your tub spout diverter is leaking and your spout is a Moen 3800 type. Check the spout model before ordering.
Moen 102568 Villeta Replacement Part
Moen 102568 Villeta Replacement Part
Best for: Bath valve component swaps where the original part is worn or missing.
This part suits owners who have identified a specific worn component in a Moen bath valve and want a direct Moen-numbered replacement. Matching the part number on your old component before buying is essential.
Key specs
- Manufacturer part number 102568
- Designed as a direct replacement for the Villeta bath valve line
Pros
- Manufacturer-numbered, which simplifies fit checks
- Restores original valve function without a full valve swap
- Pairs well with Moen’s published diagrams
Cons
- Useful only if your valve matches the Villeta series
- Installation may require removing the valve trim first
Bottom line: The right choice for owners who have confirmed their Villeta valve part number and want an exact match.
Moen 1222 Posi-Temp Single-Handle Replacement Cartridge
posi-Temp Tub and Shower Replacement Cartridge, authentic Moen faucet cartridge replacement part Moen 1222 Single-Handle Replacement Cartridge, Posi-Temp
Best for: Shower temperature control problems, such as sudden hot or cold swings.
Owners who notice water temperature shifting while someone flushes a toilet or runs a sink often trace the problem to a worn pressure-balancing cartridge. The Posi-Temp design is built to hold a steady mix under changing supply pressure.
Key specs
- Single-handle Posi-Temp pressure-balancing cartridge
- Designed for Moen tub and shower valves in the 1222 series
Pros
- Addresses scalding risk from pressure fluctuations
- Restores smooth handle operation in many cases
- Authentic Moen part, which helps with fit
Cons
- Requires shutting off water and removing the handle
- Must match your valve series exactly
Bottom line: Best for shower owners whose temperature is unstable. Confirm the cartridge number against your existing one first.
Moen 1225 Magnum One-Handle Faucet Cartridge Replacement Kit
Genuine Moen Part, For Kitchen and Bathroom Faucets Moen 1225 Magnum One-Handle Faucet Cartridge Replacement Kit, Brass
Best for: Replacing a worn cartridge in a brass one-handle valve.
This kit is intended for one-handle faucets and valves where the original cartridge is leaking, stiff or hard to control. Owners with older brass fixtures often prefer a like-for-like cartridge rather than a different design.
Key specs
- One-handle cartridge kit
- Brass construction
- Labeled for kitchen and bathroom faucets
Pros
- Brass body suits long service life
- Single kit covers a common cartridge replacement
- Direct fit for matching Moen valves
Cons
- Not interchangeable with Posi-Temp designs
- Older valves may need seat or O-ring replacement too
Bottom line: Suited to owners with brass one-handle Moen valves who want to replace the cartridge rather than the whole fixture.
Moen 116711 Faucet Aerator 1.5 GPM (2 Pcs)
116711 Faucet Aerator 1.5 Gpm for Moen Bathroom Kitchen Sink Inserts Replacement Parts 2 pcs
Best for: Low-flow spout tips and weak or uneven spray.
A clogged or mineral-crusted aerator is one of the most frequent causes of a weak or splashing stream. This two-pack gives you a spare, which is useful if you want to clean or swap one without losing the outlet.
Key specs
- 1.5 GPM flow rating
- Two pieces per pack
- Compatible with Moen bathroom and kitchen spouts
Pros
- Quick fix that requires no tools in many cases
- Lower flow rate can reduce splashing
- Spare included for future cleaning
Cons
- Does not fix pressure problems from the valve
- Thread size must match your spout
Bottom line: The simplest and most affordable place to start if the spray pattern looks wrong but the handle works fine.
Moen 140710 Replacement Part
Moen 140710 Replacement Part
Best for: Specialty bath valve repairs where a Moen-numbered component is needed.
This part is for owners who have already identified a specific failed component by its Moen number and need an exact match. It is less of a general-purpose item and more of a targeted replacement.
Key specs
- Manufacturer part number 140710
- Intended as a direct replacement for matching Moen valves
Pros
- Exact Moen numbering reduces guesswork
- Useful when a single component has failed
- Avoids replacing an entire valve assembly
Cons
- Only useful if you can confirm the part number on your valve
- Installation may expose other worn parts
Bottom line: Pick this if your repair diagram or old part shows 140710 and you want a matching replacement.
Buying Guide
Identify the exact model and part number first
Moen bath faucets vary widely by series, and a part that looks identical can have a different internal geometry. Look for a stamped number on the valve body, cartridge or trim, and compare it to Moen’s published parts diagrams. Matching numbers is the single most reliable way to avoid wasted orders. Consider consulting a licensed plumber if you cannot confirm the series.
Good picks for this: Moen 102568 Villeta Replacement Part, Moen 140710 Replacement Part
Know whether the problem is the cartridge, the diverter or the aerator
Symptoms overlap. Water from the tub spout while showering points to the diverter. Temperature swings usually point to a pressure-balancing cartridge. Weak or splashing spray often points to the aerator. Diagnosing the symptom before buying saves money and time.
Good picks for this: Diverter Valve Repair Kit, Moen 116711 Faucet Aerator 1.5 GPM
Cartridge type: Posi-Temp versus standard one-handle
Posi-Temp cartridges include pressure balancing and are meant to hold steady temperature. Standard one-handle cartridges do not offer the same balancing function. Using the wrong type can leave you with a valve that does not seal or does not regulate correctly, so match the design as well as the number.
Good picks for this: Moen 1222 Posi-Temp Single-Handle Replacement Cartridge, Moen 1225 Magnum One-Handle Faucet Cartridge Replacement Kit
Material and construction: brass versus plastic
Brass bodies and cartridges are common in older and higher-end Moen valves and generally handle long service life well. Plastic components are often used for diverter parts and aerators, where the load is lighter. Use the material your original part was made from when possible, since mixing materials can affect fit and wear.
Good picks for this: Moen 1225 Magnum One-Handle Faucet Cartridge Replacement Kit, Diverter Valve Repair Kit
Flow rate and spray performance
Aerators are rated in gallons per minute. A 1.5 GPM rating is a common low-flow option that many owners choose to reduce splash and water use. Check whether your current aerator is a different rating before switching, since a large change can affect how the spray feels.
Good picks for this: Moen 116711 Faucet Aerator 1.5 GPM
Installation difficulty and tools
Aerators and diverter kits can often be swapped with hand tools and a towel to protect the finish. Cartridge replacement usually requires removing handles, trim and sometimes a retaining clip, and may require a cartridge puller on stubborn parts. Plan for the tools before you start and shut off the water supply first.
Good picks for this: Moen 116711 Faucet Aerator 1.5 GPM, Moen 1222 Posi-Temp Single-Handle Replacement Cartridge
Durability and long-term maintenance
Mineral deposits from hard water wear out aerators, seals and cartridges faster than most other causes. Flushing screens periodically and using a vinegar soak can extend service life. Replacing a worn part early is usually cheaper than waiting for water damage to show up in the wall or subfloor.
Good picks for this: Moen 1225 Magnum One-Handle Faucet Cartridge Replacement Kit, Moen 140710 Replacement Part
FAQ
How do I find the right Moen bath faucet replacement part?
Locate the model or part number stamped on the valve body, cartridge or trim, then match it to Moen’s published parts diagrams. If the number is unreadable, note the faucet series name, the handle style and whether the valve is one-handle or two-handle.
Can I replace a Moen tub spout diverter without replacing the whole spout?
In many cases, yes. Diverter repair kits include the cup seal and diverter gate, which are the parts that most often wear out. Confirm your spout model matches the kit’s listed compatibility before ordering.
Why does my shower temperature keep changing?
The most common cause is a worn pressure-balancing cartridge. Hot and cold supply pressure changes can then pass through the valve unevenly. Replacing a Posi-Temp cartridge with the matching part usually restores stability, but confirm the diagnosis first.
Is a 1.5 GPM aerator good for a bathroom faucet?
A 1.5 GPM rating is a common low-flow choice and many owners use it to reduce splashing. Whether it suits you depends on water pressure and personal preference. If spray feels too weak, a higher-rated aerator may be a better match.
Do I need to shut off the water before replacing a cartridge?
Yes. Shut off the supply valves under the sink or at the main, then open the faucet to relieve remaining pressure. Working with water on will cause spraying and can damage the trim. If you are unsure about shutoff valves, consult a licensed plumber.
Are brass and plastic parts interchangeable?
Not always. Brass and plastic components are designed around different load and fit tolerances. Use the material your original part was made from, and check the part number rather than relying on appearance alone.
What if I cannot identify my Moen bath faucet?
Take clear photos of the handle, spout and any stamped numbers, then compare them to Moen’s parts diagrams or a plumbing supply counter. A licensed plumber can confirm the series if the markings are worn.
Conclusion
For most moen bath faucet replacement parts projects, the right choice begins with the symptom. A tub spout that keeps flowing points to the diverter kit, and a shower that swings in temperature points to a Posi-Temp cartridge. Owners with a brass one-handle valve will usually want the matching Magnum cartridge kit, while a weak spray is often solved by a 1.5 GPM aerator. Specialty Moen-numbered parts such as the Villeta and 140710 components suit owners who have already identified the failed piece. Confirm the part number before ordering, and see our related guides below for step-by-step help.
Related reading: Moen Bath Faucet Parts: How to Identify and Replace the Right Ones, Moen Tub Faucet Cartridge: Step-by-Step Replacement Guide (2026), Moen Bathtub Faucet Parts: Identify, Source and Replace the Right Ones, Moen Faucet Replacement Cartridge: Step-by-Step Guide for Beginners.
Sources
- Guidance on water conservation and fixture flow rates, useful background for choosing aerator ratings (epa.gov)
- Consumer safety information on scald prevention and water temperature control in bathing fixtures (cpsc.gov)
- Plumbing product standards and certification information relevant to valve and cartridge components
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.
