Your Frigidaire dishwasher still cycles, but the lower rack comes out with stuck-on food. You don't want to replace the whole appliance, and you don't want to pay for a service visit if a small part will do. The 5304507158 lower spray arm assembly is meant to be that small part. The question is whether it's the right fit for your dishwasher.
Quick Verdict
At $26.48, this lower spray arm assembly is a direct replacement for a Frigidaire dishwasher's lower arm. It's a perfect-fit replacement, and it comes as a dedicated lower arm. It won't fix unrelated wash issues, but if the lower arm is the culprit, this is the part to start with.
Who It Suits
This arm is for you if you're ready to replace a failing lower spray arm yourself and you don't need a service call just to swap a small part.
What Stands Out from the Listed Details
The 5304507158 assembly carries a long cross-reference list, including AP6036393, PS11770610, EAP11770610, 4454834, and several A006575/A006577/A006578/A010144 variants. That's useful when you're trying to match the part number stamped on your current arm. The fit list covers Frigidaire models in the FGHD2465 and FGID2466 series, so it's a direct replacement for that range. The dimensions given are 17.5 inches deep, 8.25 inches wide, and 5.75 inches high, with a weight of 1.2 lb. It's a new part built from high-quality materials.
Meaningful Trade-offs
The main trade-off is scope: this is the lower spray arm only, so it doesn't include the upper arm, the filter, or the wash pump. If your dishwasher's weak cleaning comes from a clogged pump or a failing upper arm, a new lower arm won't change that. It's a targeted part, not a whole-machine refresh.
Product Note
5304507158 Dishwasher Lower Spray Arm fit Frigidaire Dishwashers Arm Assembly
The cross-reference list is the strongest reason to pick this arm, since it covers common Frigidaire part numbers such as AP6036393, PS11770610, and 4454834. That's a concrete advantage when you're trying to match an old part with a hard-to-read stamp, and the fit across the 2465 and 2466 series gives you flexibility if the exact suffix varies.
That said, the part won't help if your weak cleaning comes from the upper arm or the wash pump; it's strictly a lower-arm replacement. So measure your symptom against what this part actually does before you order.
Bottom Line
If your Frigidaire dishwasher needs a lower spray arm and your model is in the compatible range, the 5304507158 assembly is a straightforward $26.48 repair part that does exactly what it says: it replaces the lower arm. It's not a diagnostic tool or a whole-machine fix, but for the right symptom it's a way to get the bottom rack clean again.
