What the Pfister 974-074 Cartridge Does and Why You Replace It

The Pfister 974-074 is a ceramic disc cartridge that controls water temperature and flow in your faucet. When it wears out, you'll notice the handle becomes stiff, water leaks from the spout even when the handle is off, or the faucet won't shut off completely. Replacing it is a straightforward job that takes 15 to 30 minutes and costs $15 to $40 for the cartridge itself.

This cartridge fits Pfister single-handle faucets, typically found in kitchens and bathrooms. The part number 974-074 is specific — buying the wrong cartridge will not work in your faucet, so confirm your model before ordering.

Key Takeaways

  • Turn off the water supply under the sink or at the main shutoff before you start, then open the faucet handle to release pressure.
  • Remove the handle by prying off the cap with a flathead screwdriver, then unscrew the handle screw underneath.
  • Unscrew the cartridge collar (the ring holding the cartridge in place) with a cartridge removal tool or adjustable wrench, then pull the cartridge straight out.
  • Insert the new 974-074 cartridge with the notch aligned to the pin inside the faucet body, screw the collar back on, and reassemble the handle.
  • Turn the water back on and test for leaks before you consider the job complete.

Gather Your Tools and Materials Before Starting

You will need a flathead screwdriver, an adjustable wrench or a Pfister cartridge removal tool (the removal tool is easier but not required), a new 974-074 cartridge, and a bucket or towel to catch water. Some water will spill when you remove the old cartridge, so have the bucket ready.

Confirm the cartridge number on your faucet body or in your faucet documentation. The number is often stamped on the faucet itself or printed in the manual. Ordering the wrong cartridge is the most common mistake — the 974-074 is not interchangeable with other Pfister cartridges.

Turn Off Water and Release Pressure

Locate the shutoff valves under the sink. There are usually two — one for hot water and one for cold. Turn both clockwise until they stop. If you cannot find shutoff valves under the sink, turn off the main water supply to your house.

Open the faucet handle all the way and let water run for a few seconds to release pressure from the lines. This prevents water from spraying when you remove the cartridge. Leave the handle in the open position while you work.

Remove the Handle and Expose the Cartridge

Look at the top of the handle. There is a small cap or plug covering the handle screw. Use a flathead screwdriver to pry this cap off gently — it will pop out. Do not force it; a light prying motion is enough.

Once the cap is off, you will see the handle screw. Unscrew it counterclockwise with a screwdriver that fits snugly in the slot. Remove the screw completely and set it aside. Pull the handle straight up and off the faucet body. You will now see the cartridge collar — a ring that holds the cartridge in place.

Remove the Old Cartridge

The cartridge collar is the ring directly under where the handle was. Use an adjustable wrench to grip this collar and turn it counterclockwise. If you have a Pfister cartridge removal tool, insert it over the cartridge stem and turn counterclockwise — this is easier and less likely to slip.

Once the collar is loose, unscrew it by hand and set it aside. You will see the cartridge stem sticking up. Grasp it firmly and pull straight up. The cartridge will come out. Some water may drip — this is normal and expected. Place the bucket underneath to catch it.

Install the New 974-074 Cartridge

Before inserting the new cartridge, look inside the faucet body. You will see a small pin or notch. The new cartridge has a matching notch or slot on its stem. Align these two features so the cartridge sits correctly. This alignment matters — if the cartridge is rotated wrong, the handle will not work properly.

Insert the cartridge straight down into the faucet body, keeping the notches aligned. Push it down firmly until it seats. Screw the cartridge collar back on by hand first, then tighten it with the wrench or removal tool. Turn it clockwise until it is snug — do not over-tighten, as this can crack the cartridge.

Reassemble the Handle and Test

Slide the handle back onto the faucet stem. Insert the handle screw and tighten it clockwise with a screwdriver. Push the cap back on until it clicks into place. The handle should sit flush against the faucet body with no gaps.

Turn the water shutoff valves back on by turning them counterclockwise. Open the faucet handle slowly and let water run for 10 seconds to flush air from the lines. Check under the sink for leaks around the cartridge collar and the shutoff valves. If you see dripping, turn the water off and tighten the collar slightly. Once water runs clear and there are no leaks, the job is complete.

Frequently Asked Questions

What if the cartridge collar won't turn?

The collar may be stuck from mineral buildup. Soak the area with white vinegar for 15 minutes, then try again with the wrench. If it still will not budge, tap the wrench handle gently with a hammer to break the corrosion loose. Do not force it hard enough to crack the faucet body.

Can I use a different Pfister cartridge if I can't find the 974-074?

No. Pfister cartridges are not interchangeable between models. Using the wrong cartridge will cause the handle to not work or the faucet to leak. Order the correct 974-074 from a plumbing supply store, online retailer, or directly from Pfister.

Why is water still leaking after I installed the new cartridge?

The most common cause is the cartridge collar not being tight enough. Turn the water off, tighten the collar a quarter turn with the wrench, and test again. If leaking continues, the cartridge may be inserted at the wrong angle — remove it, check the notch alignment, and reinstall.

Do I need to turn off the main water supply or can I just use the under-sink valves?

The under-sink shutoff valves are sufficient for this job. Use them if they turn smoothly and stop water flow completely. If they are stuck or do not shut off water, then turn off the main supply instead.