How to Replace DD67-00059A Dishwasher Drain Hose on Samsung Dishwasher — Step-by-Step

You open the cabinet under your sink and there it is — a puddle spreading across the floor. The culprit? Your Samsung dishwasher's drain hose has finally given up, either cracked from years of heat cycling or split at a connection point. The DD67-00059A drain hose is one of those parts that works silently until it doesn't, and when it fails, you'll know immediately from the water pooling underneath.

This hose replacement fits dozens of Samsung models including the DMT400RHS, DW80F600UTS, and DW7933LRAWW series. It's a straightforward fix that'll save you a service call, though you'll need to work in tight quarters under the unit.

What You Need Before Starting

• Phillips screwdriver
• Flat-head screwdriver
• Towels (you'll have residual water)
• Bucket or shallow pan
• Flashlight or headlamp
• Adjustable wrench or pliers

Repair time: 25-35 minutes
Difficulty: Moderate — Requires working underneath the dishwasher in cramped space

Safety First

Unplug the dishwasher completely or flip the circuit breaker. Even though you're working on a drain line, you'll be reaching around electrical connections underneath, and water plus electricity is never a good mix. Turn off the water supply valve under the sink while you're at it — it's not directly related to the drain hose, but it's smart prevention if you accidentally bump a supply line.

Step 1: Access the Underside of the Dishwasher

Remove the lower access panel at the bottom front of the dishwasher. Most Samsung models have a few screws holding this kick plate in place — some just snap off with gentle upward pressure. You'll see the drain hose running from the dishwasher pump to your sink's drain or garbage disposal. Have your towels ready because there's always residual water in these lines, even if you've run a drain cycle.

Step 2: Locate and Disconnect the Old Hose

The DD67-00059A connects at two points: the drain pump outlet on the dishwasher and the air gap or disposal connection under your sink. Start at the disposal end — loosen the hose clamp with your screwdriver and twist the hose to break any mineral deposits that might've sealed it. Pull it free and let any water drain into your bucket. Now trace it back to the pump connection and remove that clamp too.

Step 3: Check the Pump and Air Gap

Before installing the new hose, this is your chance to inspect the drain pump inlet for any blockages or food debris. A clogged pump can cause back-pressure that'll destroy your new hose prematurely. Similarly, if your setup includes an air gap on the sink, unscrew the cap and make sure it's clear — those things collect gunk like nobody's business.

Step 4: Route and Connect the New Hose

Feed the new DD67-00059A hose along the same path as the old one. Samsung dishwashers typically require the hose to loop up higher than the connection point to prevent backflow — this is critical. Secure the pump end first with a new hose clamp (if your old one's corroded, replace it), then route it up and over to the disposal or drain connection. The hose should have a gentle curve, not sharp bends that'll restrict flow.

Step 5: Secure All Connections and Test

Tighten both clamps firmly but don't go Hulk on them — you'll crack the plastic fittings. The clamp should compress the hose enough that you can't easily twist it off by hand. Reattach the access panel, restore power, and run a short rinse cycle while you watch underneath with your flashlight. You're looking for any drips at the connection points during the drain cycle, which happens about 2-3 minutes in.

Testing After Installation

Run a full wash cycle with the dishwasher empty. Check under the unit at the 10-minute mark and again when it drains at the end. Look at both connection points and along the hose length for any moisture. If you see wetness, it's usually a loose clamp or the hose not fully seated on the barbed fitting — tighten or reseat as needed.

Frequently Asked Questions

Why does this hose keep leaking even after replacement?

Usually it's one of three things: the hose clamps aren't tight enough, the connection fittings on the pump or disposal are damaged or corroded, or you've got the wrong replacement part. The DD67-00059A replaces DD81-02331A and DD81-02636A, so verify your model number against the compatibility list. Also check that you're not overtightening — cracking the pump fitting will cause leaks that no amount of new hose will fix.

Can I use a universal drain hose instead of the Samsung part?

You can, but the fit won't be exact. Universal hoses often use different diameter tubing that requires adapters, and the length might not match Samsung's specific routing requirements. The DD67-00059A is molded to the correct diameter and length for models like the DMT800RHS and DW80F600UTB series. Spending $34 on the correct part beats dealing with a flood from an ill-fitting universal hose.

How do I know if my leak is the drain hose or something else?

Run the dishwasher and watch when the leak appears. If water shows up during the drain cycle (you'll hear the pump running), it's likely the drain hose. If it leaks during fill or wash, you're looking at a door seal, spray arm issue, or supply line problem. The drain hose specifically fails at connection points or develops cracks along its length from constant exposure to hot water and detergent. You'll usually see water running down from the hose itself or pooling under the connection points.