Whirlpool Refrigerator P-Trap Drain Tube Parts — Models & Compatibility

Water pooling under your crisper drawers? That's usually a clogged or cracked drain tube. This hub covers the W10619951 P-Trap Drain Tube Kit — the upgraded replacement that fits over 100 Whirlpool, Maytag, KitchenAid, and Kenmore refrigerator models. If you're dealing with leaking water inside the fridge or frost buildup in the freezer, you're likely here because the old drain tube failed.

Is This the Right Part for Your Model?

Check your model number — it's usually on a sticker inside the fridge along the left or right wall, sometimes behind the crisper drawer. This W10619951 kit replaces several older designs including AP5780744, PS8691807, W10309238, and W10344402. Compatible models include GB2FHDXWQ04, GB2FHDXWQ05, 5GBB1958EW00, ABB1921BRB02, ABB2224BRW02, AFI2539ERW02, EB2SHKXVQ01, 7GI5FSAXVY1, 6GX0FHDXXY0, GZ25FSRXYY2, GS5VHAXWY00, and many KitchenAid KBFS series models like KBFS20EVMS1 and KBFS20EVMS9.

About This Replacement Part

The P-trap design is Whirlpool's improved solution to drain tube failures. The old straight tubes would clog with food particles and ice, causing water to back up into the fresh food compartment or freeze solid in the drain line. When that happens, you'll see leaking, frost buildup in the freezer, or the fridge running warmer than it should because defrost water isn't draining properly. One tech noted they "removed the defective drain part and installed the new p-trap design drain tube kit" — the curved trap prevents debris from blocking the line and allows easier cleaning access if it does clog.

Common Failure Patterns

Drain tube clogs are the #1 reason for this replacement. Here's what typically happens: defrost water carries tiny food particles down the drain. In older straight-tube designs, those particles accumulate and eventually block the tube completely. Then defrost water has nowhere to go — it either freezes in the tube (causing frost buildup) or overflows into the fridge (causing leaking under the drawers). The P-trap design solves this by creating a water seal that traps debris before it can block the entire line.

Installation Overview

This is an easy 15-30 minute repair. You'll need a nutdriver and screwdrivers to remove the rear panel inside the freezer compartment, disconnect the old drain tube, and snap the new P-trap assembly into place. No technical skills required — if you can unscrew a few panels, you can do this repair. The kit includes everything you need except the basic hand tools.

Why This Part Fails

Normal use. Every time your fridge defrosts (usually 2-3 times per day), water runs down that drain tube. Over years of use, mineral deposits build up, plastic becomes brittle from temperature cycling, and small cracks develop. Once a crack forms, water leaks before it reaches the drain pan under the fridge. The P-trap design is more durable and easier to service than the older straight tubes it replaces.

Price & Availability

The W10619951 P-Trap Drain Tube Kit runs $40.99 and fits multiple brands — Whirlpool, Maytag, KitchenAid, and some Kenmore models. That's significantly cheaper than a service call, and you'll have the satisfaction of fixing it yourself in under half an hour.