5 Best Replace Delta Bathroom Faucet Cartridge Options for 2026

Updated November 2026

If your Delta bathroom faucet is dripping, sticking or delivering water that runs hot and cold in the wrong places, the cartridge is usually the culprit. Learning how to replace Delta bathroom faucet cartridge parts is one of the most practical home repairs you can do without a plumber, but only if the kit matches your faucet series and includes the components that wear out. The picks below were chosen on specification detail, brand reputation for Delta-compatible parts and the kinds of owner feedback that come up repeatedly, such as fit issues, missing O-rings or unclear instructions.

Our Top Picks

Before comparing the products, it helps to know what the selection criteria were. We looked at whether each kit names the Delta part numbers it replaces, whether it bundles the cartridge with seats, springs and stops, how clearly the listing describes compatibility with two-handle or single-handle faucets, and whether owners commonly report a smooth installation. A related read: How to Replace a Delta Kitchen Faucet Cartridge in 6 Steps (2026).

Quick Comparison

Product	Best for	Key feature
2-Pack for RP25513 Faucet Stem Assembly for Delta Faucet Cartridge Parts Replacement	Two-handle Delta faucets needing a full stem refresh	Two units with RP24096 cartridge, seats, springs and 1/4 turn stops
2-Pack for Delta RP25513 Faucet Cartridge Replacement	Owners who want spare parts on hand	Duplicate kit for a second bathroom or future repairs
RP25513 Faucet Stem Replacement for Delta 2 Handle Faucet Cartridge, 4 Pack	Plumbers or landlords maintaining several faucets	Four-pack volume for multi-fixture jobs
Danco Cartridge Repair Kit for Delta Single-Handle Faucet, Brass (86970)	Single-handle Delta faucets with a simple cartridge swap	Brass-body cartridge kit from an established faucet parts brand
2 Pack RP42096 Stem Cartridge Kit, for Delta and Peerless faucets	Mixed Delta and Peerless households	Cross-brand compatibility listed on the packaging

RP25513 Faucet Stem Assembly for Delta Faucet Cartridge Parts Replacement, 2-Pack

Best for: Full stem and cartridge replacement on two-handle Delta bathroom faucets.

This kit suits homeowners whose Delta faucet has begun leaking from the spout or handle and who want to replace the whole internal set in one order. Because it is sold as a two-pack, it also works for a second sink.

Key specs

• Part numbers named in the listing: RP25513 stem assembly and RP24096 cartridge
• Includes RP4993 seats and springs
• Includes RP24097 1/4 turn stop
• Sold as a two-pack

Pros

• Bundles the cartridge with seats, springs and stops, so you rarely need a second order
• Two units cover two sinks or a future repair
• Part numbers in the title make matching straightforward

Cons

• Fit depends on confirming your existing Delta series before ordering
• Owners sometimes report that the included O-rings need lubrication during install

Bottom line: A strong first choice for a two-handle Delta faucet that needs a complete internal refresh, provided you check the part number on your old cartridge first.

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2-Pack for Delta RP25513 Faucet Cartridge Replacement

Best for: Two-handle Delta faucets where you want a spare set on hand.

This option is aimed at people who expect to repair more than one fixture or who want a backup cartridge ready before the next leak. It carries the same core component set as the first listing.

Key specs

• Named parts: RP25513, RP24096, RP4993 seats and springs, RP24097 1/4 turn stop
• Sold as a two-pack
• Designed for Delta bathroom and kitchen faucet repair

Pros

• Spare cartridge kit reduces downtime for future repairs
• Consistent part numbering with the other RP25513 kits
• Covers both bathroom and kitchen Delta fixtures per the listing

Cons

• Not all owners need two units, so the second set may go unused
• Compatibility still depends on matching the exact Delta series

Bottom line: Best for households with more than one Delta faucet or anyone wanting a spare on the shelf.

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RP25513 Faucet Stem Replacement for Delta 2 Handle Faucet Cartridge, 4 Pack

Best for: Multi-fixture jobs such as rentals, remodels or maintaining several Delta faucets.

Property managers and contractors often buy in volume to avoid reordering mid-job. This four-pack covers that need for two-handle Delta faucets.

Key specs

• Four-pack quantity
• Includes RP24096 cartridge, RP4993 seat and spring, and RP24097 1/4 turn stop
• Labeled for Delta 2-handle faucet cartridges

Pros

• Lowest per-unit coverage for multi-sink projects, with no reorder needed
• Clear labeling of included components
• Useful stock for repeat maintenance work

Cons

• Overkill for a single household faucet repair
• Leftover units take storage space if you only needed one

Bottom line: The right choice for landlords, contractors or anyone servicing several Delta two-handle faucets.

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Danco Cartridge Repair Kit for Delta Single-Handle Faucet, Brass (86970)

Best for: A budget-minded swap on a single-handle Delta faucet.

Danco is a well-known name among faucet repair parts, and this kit targets single-handle Delta cartridges. It suits a homeowner who has already identified a single-handle model and wants a straightforward replacement.

Key specs

• Brass-body repair kit, per the listing name
• Designed for Delta single-handle faucets
• Model reference 86970 printed in the listing

Pros

• Single-handle focus keeps the kit simple to match
• Established brand in faucet repair parts
• Clear listing title that states the faucet type

Cons

• Not suitable for two-handle Delta faucets
• Owners should compare the cartridge height to their old part before installing

Bottom line: A sensible pick for single-handle Delta owners who want a recognizable brand and a focused kit.

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2 Pack RP42096 Stem Cartridge Kit, for Delta and Peerless faucets

Best for: Households or service jobs that mix Delta and Peerless faucets.

Peerless is a sister brand of Delta, and some stem cartridges are shared between the two. This two-pack is listed for both, which makes it useful when you are not sure which brand is installed.

Key specs

• Part reference RP42096 named in the listing
• Two-pack quantity
• Listed for Delta and Peerless faucets

Pros

• Cross-brand listing covers mixed installations
• Two units provide a spare
• Part number is clearly stated for cross-checking

Cons

• Listing includes less detail on included seats and springs than the RP25513 kits
• Cross-brand compatibility should still be confirmed against your old part

Bottom line: Best for anyone unsure whether a faucet is Delta or Peerless, or who works on both brands.

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Buying Guide

Identify your faucet series first

Delta uses different internal cartridges across its bathroom faucet lines. Before ordering, remove the handle, read the number stamped on the old cartridge or on the faucet body, and compare it to the part numbers in the listing. Owners often report that matching the part number is the single step that prevents a return.

Good picks for this: 2-Pack for RP25513 Faucet Stem Assembly for Delta Faucet Cartridge Parts Replacement, Danco Cartridge Repair Kit for Delta Single-Handle Faucet

Single-handle versus two-handle cartridges

Single-handle faucets use one cartridge that controls both flow and temperature. Two-handle faucets use separate stems for hot and cold. Buying a two-handle kit for a single-handle faucet, or the reverse, is a common mistake. Check how many handles your faucet has before you shop.

Good picks for this: 2-Pack for Delta RP25513 Faucet Cartridge Replacement, Danco Cartridge Repair Kit for Delta Single-Handle Faucet

Included components

A cartridge alone often leaves seats, springs and stops worn. Kits that include RP4993 seats and springs and an RP24097 1/4 turn stop let you address the full internal wear set. Look for these named in the listing rather than assuming they are included.

Good picks for this: 2-Pack for RP25513 Faucet Stem Assembly for Delta Faucet Cartridge Parts Replacement, RP25513 Faucet Stem Replacement for Delta 2 Handle Faucet Cartridge, 4 Pack

Quantity and spares

A single cartridge covers one faucet. Multi-packs make sense for households with several sinks, rental units or contractors who need stock. Spares also save a second trip to the store when a part arrives damaged.

Good picks for this: 2-Pack for Delta RP25513 Faucet Cartridge Replacement, RP25513 Faucet Stem Replacement for Delta 2 Handle Faucet Cartridge, 4 Pack

Cross-brand compatibility

Delta and Peerless share some parts, but not all. If your faucet has no visible brand marking, pull the cartridge and read the stamped code. A kit listed for both brands gives flexibility, but still confirm height and stem length against the old part.

Good picks for this: 2 Pack RP42096 Stem Cartridge Kit, for Delta and Peerless faucets

Installation tools and water shutoff

Turn off the supply valves under the sink and open the faucet to drain residual water. Most cartridge replacements need a flathead screwdriver or Allen wrench, a cartridge puller for stubborn parts, and plumber’s grease for the O-rings. Keep a towel under the sink to catch drips.

Good picks for this: Danco Cartridge Repair Kit for Delta Single-Handle Faucet, 2-Pack for RP25513 Faucet Stem Assembly for Delta Faucet Cartridge Parts Replacement

Durability and brass versus plastic components

Brass bodies generally resist corrosion better than plastic in hard-water areas, though seats and O-rings are rubber in most kits regardless. Replacing the full internal set rather than only the cartridge reduces the chance of a second leak within a short period. If you are unsure whether a rebuild or a full swap is needed, read the guide on Delta Bathroom Faucet Repair Kit picks for more context.

Good picks for this: Danco Cartridge Repair Kit for Delta Single-Handle Faucet, RP25513 Faucet Stem Replacement for Delta 2 Handle Faucet Cartridge, 4 Pack

FAQ

How do I know which cartridge my Delta faucet needs?

Turn off the water, remove the handle and cap, and remove the retaining clip or nut. Pull out the cartridge and read the stamped number on the top or side. Match that number to the part number in the listing before buying.

Can I replace the cartridge myself?

Most homeowners with basic hand tools can complete a cartridge swap in under an hour. Work slowly, photograph each step before disassembly, and keep small parts together. If the valve body is corroded or the stem will not release, a licensed plumber is the safer option.

Do I need to replace seats and springs too?

Many repair kits include seats and springs because they wear alongside the cartridge. Replacing them during the same job avoids a second repair. Check the listing to see whether they are included.

Will a Delta cartridge fit a Peerless faucet?

Some Delta and Peerless stem cartridges are interchangeable, which is why a cross-listed kit exists. Confirm the part number against your old cartridge rather than relying on the brand name alone.

Why is my faucet still dripping after replacing the cartridge?

Common causes include a seat or spring left in the old position, an O-ring that was not lubricated, or debris trapped in the valve body. Reopen the faucet, check the seating, and clear any sediment. If the problem persists, consult a licensed plumber.

How often should a Delta cartridge be replaced?

Replacement frequency depends on water quality, use and maintenance. Owners in hard-water areas often report needing a cartridge sooner than those on softened supply. Watch for drips, stiff handles or temperature fluctuation as signs it is time.

Conclusion

For most two-handle Delta owners, the RP25513 stem assembly kit is the most complete starting point because it bundles the cartridge with seats, springs and the 1/4 turn stop. Households with more than one sink or rental units will get more value from the multi-packs. Single-handle owners should look at the Danco kit, while the RP42096 kit suits mixed Delta and Peerless homes. Always confirm the part number against your old cartridge before ordering, and consult a licensed plumber if the valve body is damaged or the repair goes beyond a cartridge swap.

Sources

• Consumer guidance on home plumbing safety and product recalls (cpsc.gov)
• Information on WaterSense faucet performance and water efficiency (epa.gov)
• Plumbing product standards and certification information

Related reading

• Replace Bathroom Tub Faucet: A Step-by-Step Guide for Beginners
• Price Pfister Bathroom Faucet Parts: Identify, Order and Replace the Right Ones
• Moen Bathroom Faucet Parts: Identify, Order and Replace Them Yourself
• Moen Bathroom Faucet Cartridge: 4 Best Replacements Compared (2026)
• Delta Trinsic Bathroom Faucet Review: Key Features Explained
• Delta Nicoli Bathroom Faucet Review: Is It Worth It?

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