WR51X10031 Defrost Heater Review — Part Supply House

Intro

If your freezer coils ice up and you’re staring at the idea of replacing an entire refrigerator, a replacement defrost heater like the WR51X10031 from Part Supply House is one of the obvious repair parts to check first. The listing calls this a "Brand New Replacement Refrigerator Defrost Heater," and the product is sold with a one-year warranty. Owners who bought this part repeatedly emphasize the same practical point: it’s far cheaper than replacing the whole fridge, and it usually fits the intended models.

What it is / first look

The WR51X10031 is a replacement defrost heater listed by Part Supply House. The product dimensions are 9 x 4 x 4 inches, and it weighs 8 ounces. The listing explicitly states the package includes the defrost heater and describes it as a brand-new replacement unit. It also lists the part number (WR51X10031) and identifies several legacy part numbers it replaces: 773802, AH303762, EA303762, and PS303762. The listing includes a long compatibility list of model codes; that list is the authoritative source for model fit.

Compatibility and model coverage

The listing provides an extensive set of model codes the WR51X10031 is used in. Examples from the listing include CSM22GRBEWW, CSX22GABEAA, ERS2022DABB, MRSC20KWBEAD, MST20GABEWW, TFJ22JABGWW and TFJ22PRBGAA among many others. Buyers should verify their refrigerator model against the exact list in the product listing before ordering; the listing is the source of truth for fit.

Included parts and warranty

The listing’s "Included Components" field shows a single item: Defrost Heater. The warranty description on the listing is 1 year. If you need more parts or connectors, the listing doesn’t specify extras — it only lists the heater itself.

In daily use

This is a niche replacement part that only becomes relevant when your freezer’s automatic defrost stops working or the evaporator coil freezes over. Owners who bought this part describe the practical experience of replacing it and getting the fridge running again. Two themes stand out in the owner feedback: first, the part fits and restores function for the listed models; second, the physical work around defrosting an iced-up freezer takes time and a little preparation.

Installation experience (owners report)

Owners repeatedly describe a DIY installation process that includes thawing the frozen coils, managing meltwater, and replacing the heater. The common, repeated owner advice is: unplug the refrigerator before beginning, use a hair dryer and lots of rags to absorb the melt-off from the coils, and temporarily block the freezer’s drain at the bottom to keep water from flowing where you don’t want it. One owner reported the thawing took about an hour. These are owner-reported workarounds — the listing itself doesn’t provide step-by-step installation instructions.

Performance and user outcomes

Owner feedback shows that the WR51X10031 commonly restores normal operation when it’s the correct replacement for the broken element. The most frequently repeated takeaway in the owner notes is practical: replacing the defrost heater is a much cheaper fix than replacing the entire refrigerator. Buyers said it "still works" after installation and emphasized the money-saved benefit of swapping the heater rather than buying a new appliance.

Stocking spares

A pattern in owner feedback is the suggestion to keep a spare on hand. One owner compared defrost heaters to old incandescent bulbs, noting that they do wear out and may need replacement again. Based on that recurring sentiment, some buyers choose to buy more than one unit so they have a replacement ready if the heater fails again and to avoid risking thawed/freezer losses while waiting for a part to arrive.

Materials & build quality

The listing does not provide detailed material or construction specs beyond the model number, dimensions, weight, and the claim that it is a brand-new replacement heater. The product is listed with a single included component (Defrost Heater) and is described by Part Supply House as a replacement for multiple legacy part numbers.

Because the listing lacks an itemized materials description, statements about specific metals, insulation, connectors, or coatings cannot be made from the available information. The seller-provided facts to rely on are the physical dimensions (9 x 4 x 4 inches), the unit weight (8 ounces), and the model/part-number compatibility list. Owners who replaced the part report it fits the intended models and performs as expected once installed; that’s the closest available signal about fit and finish in the data set.

Safety considerations

Home-repair safety is the first priority when you’re dealing with refrigerator electrics and meltwater. The listing itself does not supply installation or safety instructions, so follow manufacturer guidance and verify the current listing or service documentation for your fridge. Owners who installed the WR51X10031 emphasize a few repeated safety-minded practices:

• Unplug the refrigerator before working on the defrost heater — owner notes explicitly remind readers to unplug when thawing and doing the replacement.
• Manage meltwater carefully — several owners report the need for lots of rags to absorb water from thawing coils and recommend temporarily blocking the freezer drain so melt doesn't run into places that cause further trouble.
• Use safe thawing methods reported by owners — the most commonly reported tool for aiding thaw is a household hair dryer; owners describe using it to speed thawing so they can access and swap the heater.

The listing carries a one-year warranty; that warranty is the only formal protection explicitly stated in the product facts. Beyond that, the listing does not specify certifications, insulation ratings, or electrical safety approvals. If credentials or a step-by-step installation manual are important to you, verify the current listing or consult qualified appliance-service documentation before purchase.

Who this is for / who should skip

Who this is for

• Homeowners or DIY-minded cooks with one of the listed refrigerator model codes who need an inexpensive replacement defrost heater. The listing’s compatibility list is the authoritative fit guide.
• People who prefer a repair-first approach instead of replacing an entire refrigerator — owner feedback explicitly frames this as a cost-saving repair compared with buying a new unit.
• Households prepared to do a bit of wet-work and thawing — owners describe needing a hair dryer, rags, and time to thaw coils safely.

Who should skip

• If you don’t have one of the exact model codes listed in the product facts, skip this part and buy the correct replacement for your refrigerator — the listing’s model list controls compatibility.
• If you aren’t comfortable unplugging and working around electrical components and meltwater, or if you prefer certified service documentation and included installation instructions, consider having a qualified technician do the replacement; the listing doesn’t include an instruction manual.
• If you require explicit material or safety certifications to be shown on the listing, the product facts here don’t provide that level of detail — the listing does not specify certifications or detailed construction materials.

Verdict

The WR51X10031 from Part Supply House is a straightforward, targeted replacement part. The listing states a 1-year warranty, gives the dimensional and weight facts, and includes a long model compatibility list and legacy part numbers it replaces. Owner feedback consistently signals that the unit fits the intended models and restores defrost function, and multiple owners highlight the cost advantage compared to replacing an entire refrigerator. At the same time, expectations around lifespan should be tempered by owner comments that the element can wear out like an incandescent bulb — some buyers recommend keeping a spare.

Check before you buy

• Confirm your refrigerator model is exactly on the listing’s compatibility list.
• Note that the listing includes only the defrost heater as the included component; clamps, connectors, or extra hardware are not mentioned.
• Plan to unplug the refrigerator and manage meltwater when replacing the heater — owners recommend using rags and temporarily blocking the freezer drain.
• Expect to spend time thawing the evaporator coils; one owner reported about an hour to completely thaw before swapping the part.
• Take the one-year warranty into account and verify any additional return or seller policies on the current listing or with the manufacturer.

Colors and images

The listing provides two image filenames (B0CJHWWNNF_4324.jpg and B0CJHWWNNF.jpg) but does not specify colorways in the product facts. Available colors may include: not specified by the listing.