What are the names of faucet parts?
Most Delta FAUCETs use the same core part names: the handle(s) you turn, the spout where water exits, and the internal valve or cartridge that mixes hot and cold water and controls flow. Other common FAUCET parts include seals, mounting hardware, and the drain pieces on sink setups.
Common FAUCET parts (quick glossary)
- Handle or lever: turns water on and off; sets temperature on single-handle FAUCETs
- Spout: the outlet body that directs water into the sink
- Aerator: the small screen at the spout tip that shapes the stream and reduces splashing
- Cartridge or valve: the internal control that regulates flow and mixes hot/cold
- Bonnet nut / retaining nut: holds the cartridge or valve in place
- O-rings and seals: prevent leaks around moving parts and joints
- Escutcheon (trim plate): covers the mounting hole(s) and provides a finished look
Parts you may also see (by FAUCET style)
| FAUCET type or feature | Parts commonly included | What they do |
|---|---|---|
| Two-handle FAUCET | Hot stem, cold stem, seats, washers | Separates hot and cold control |
| Pull-down / pull-out | Spray head, hose, weight, diverter | Switches stream/spray and retracts hose |
| Tub/shower valve | Diverter, pressure-balance spool, trim sleeve | Routes water to tub or shower; stabilizes temperature |
| Bathroom sink drain | Pop-up rod, lift rod, stopper, pivot ball | Opens and closes the drain |
How we recommend matching the right replacement part
- Identify whether it is single-handle or two-handle
- Note the FAUCET location (kitchen, bathroom, tub/shower)
- Check what is failing: drip, low flow, loose handle, sprayer not switching
- Remove the aerator or handle to confirm the cartridge/valve style
- Use the cross-reference listing for model FAUCET to map old numbers to current replacements, then search by part number on Sears PartsDirect
Why it matters
FAUCET parts are named by function (control, sealing, mounting, or spray/diverting). Using the correct name helps you quickly find the right Delta replacement and avoid buying a cartridge, aerator, or seal that looks similar but will not fit.
Last updated: February 2026
How to get free Delta faucet replacement parts?
Delta FAUCET replacement parts are sometimes available at no cost through warranty coverage, but the fastest way to match the correct part is to identify your exact Delta FAUCET model and then cross-reference the cartridge, seats/springs, O-rings, or aerator you need using our Delta FAUCET parts cross reference. For ordering, we recommend starting at Sears PartsDirect.
Steps to get the right replacement part (and avoid ordering the wrong one)
- Find the FAUCET series and trim details (single-handle vs. two-handle; kitchen vs. bath).
- Note key identifiers: handle style, spout shape, finish, and any markings under the sink.
- Identify the failing area: drip at spout, leak at handle, low flow, or loose handle.
- Cross-reference the most common wear parts: cartridge, cam/packing, seats and springs, O-rings, aerator.
- Shut off water at the stops before disassembly; open the FAUCET to relieve pressure.
Common “free parts” situations (what typically qualifies)
Warranty coverage usually applies to defects in materials or workmanship for the original purchaser. In practice, the parts most often requested for leaks and handle issues include cartridges and seal kits.
| Symptom | Most likely part type | What you’ll notice |
|---|---|---|
| Drip from spout | Cartridge or seats/springs | Drip continues when handle is off |
| Leak at handle | O-rings, packing, bonnet seal | Water appears around handle base |
| Low flow | Aerator | Flow reduced but valve still works |
| Handle hard to turn | Cartridge, lubrication issue | Stiff movement or squeak |
Why it matters
Delta FAUCETs use multiple cartridge and seal designs across generations. Matching by appearance alone often leads to the wrong cartridge; using a parts cross reference based on your FAUCET’s identifiers saves time and prevents repeat leaks.
Last updated: February 2026
How can I tell what model Delta faucet I have?
To identify your Delta FAUCET model, we look for the model number on the original box (near the UPC) or on the FAUCET itself. Many Delta sink FAUCETs made since 2012 have a small ID tag attached to one of the supply lines under the sink.
Where to check first
- Original packaging: near the UPC code or along the top/side panel
- Under the sink: check both hot and cold supply lines for a hanging tag
- Mounting area: look around the shank, mounting nut, or bracket (use a flashlight)
- Spout base and handle area: check for tiny stamped or printed markings
- Paperwork: installation sheet, receipt, or contractor notes (often lists the model)
What the model number usually looks like
Delta FAUCET model IDs are typically a short mix of letters and numbers (often 4 to 7 characters). Once you find it, use that exact model to cross-reference repair parts like a cartridge, aerator, handle kit, or spray head.
| What you find | What it tells you | What to do next |
|---|---|---|
| Model number on box | Best match for the FAUCET | Use it to search parts by model |
| Tag on supply line | Common on many models since 2012 | Write it down exactly (letters and numbers) |
| No tag or markings | Common on older installs | Identify by features (handle count, spray type, finish) |
If you cannot find a tag (common on older FAUCETs)
Use these details to narrow it down for a parts cross reference:
- 1-handle vs 2-handle
- Pull-down, pull-out, or standard spout
- Separate side sprayer or integrated sprayer
- Finish (chrome, stainless, bronze)
- Approximate install year
Why it matters
Delta FAUCET parts are not one-size-fits-all. The correct model number helps us match the right internal parts (especially the cartridge and seals) so you fix leaks, low flow, or handle issues without repeat repairs.
For help using our search tools to locate the right parts list, use how to find your appliance model number (and what it means for parts).
Last updated: February 2026
Are all faucet supply lines the same?
No. FAUCET supply lines are not all the same; they vary by connection size and type, length, inside diameter (flow), and material. For Delta cross-reference model FAUCET, the right supply line is the one that matches both your shut-off valve outlet and your FAUCET inlet so it seals without leaks.
What typically differs between FAUCET supply lines
- Connection size: most common are 3/8-inch and 1/2-inch (compression or pipe thread varies)
- End type: compression, FIP (female iron pipe), MIP, or specialty quick-connect
- Length: common ranges are 12 to 30 inches (longer options exist)
- Material: braided stainless steel, polymer-braided, or solid copper
- Bend radius and flexibility: affects how easily the line routes without kinking
Quick sizing checklist (what to verify before you buy)
- Look at the shut-off valve under the sink and note the outlet type (often 3/8-inch compression).
- Check the FAUCET tailpiece/inlet size and whether it needs a compression nut, FIP, or a quick-connect.
- Measure the needed length with a gentle route (avoid tight bends); choose a line that reaches without tension.
- Match hot and cold lines the same way; do not force mismatched threads.
Common configurations (examples)
| Under-sink shut-off valve | FAUCET connection | Typical supply line you need |
|---|---|---|
| 3/8-inch compression | 1/2-inch FIP | 3/8-inch comp x 1/2-inch FIP |
| 3/8-inch compression | 3/8-inch compression | 3/8-inch comp x 3/8-inch comp |
| 1/2-inch FIP | 1/2-inch FIP | 1/2-inch FIP x 1/2-inch FIP |
Why it matters
Using the wrong connector type or size can strip threads, prevent the ferrule from sealing, or leave the line under stress. The correct match reduces leak risk and helps maintain steady water flow.
Helpful next step for cross-referencing
If you are using this Delta FAUCET cross-reference page to match parts, start by confirming your FAUCET’s exact model identification and then match the supply line ends to your valve and FAUCET. Our guide, how to find your appliance model number (and what it means for parts), helps you identify the right information to use when searching.
Last updated: February 2026
Are faucet parts universal?
No. FAUCET parts are not universal; most items (especially cartridges, stems, and handles) are designed to fit a specific brand and FAUCET design. For Delta cross-referencing (model FAUCET), matching the original part by type and measurements is the most reliable way to get the correct replacement.
What is (and is not) interchangeable
Some FAUCET parts can cross over between similar designs, but many cannot.
- Not universal: cartridges, valve stems, pressure-balance units, diverters
- Sometimes interchangeable: aerators (if thread size matches), some O-rings and washers (if size matches)
- Often brand-specific: handle adapters, trim kits, escutcheons, bonnet nuts
- Finish and style parts: rarely cross-brand even if they physically fit
How we recommend matching a FAUCET part
Use a simple identification process before ordering.
- Identify the FAUCET type: kitchen, bathroom, tub/shower, or utility.
- Note the operation: single-handle, two-handle, pull-down, or thermostatic.
- Measure key dimensions (cartridge length, stem spline count, seat diameter, aerator thread size).
- Compare photos and descriptions in the cross-reference listing.
- If you are unsure, use our model-number based search on Sears PartsDirect.
Quick compatibility guide
| Part type | Typical compatibility | What must match |
|---|---|---|
| Cartridge | Low | Brand/design family, ports, length, tabs |
| Aerator | Medium | Thread size (male/female), diameter |
| O-ring/washer | Medium | Inside diameter, thickness, material |
| Handle/trim | Low | Spline/broach pattern, mounting style, finish |
Why it matters
Using a “close enough” FAUCET cartridge or stem can cause leaks, poor temperature control, low flow, or a handle that will not seat correctly. Correct matching saves time and prevents repeat repairs.
Last updated: February 2026


