6750C-0004R Overload Protector Review — OEM Mania replacement

intro

If a refrigerator or wine cooler starts the compressor for a second or two and then dies, an overload protector—or "OLP"—is one of the common suspects. The 6750C-0004R replacement sold by OEM Mania is a low-cost aftermarket overload protector that the listing positions as a direct-fit replacement for many LG and name-brand compressors. It’s a tiny plastic device, light as a feather (listed weight: 0.01 kg), but it sits in the electrical chain that protects the compressor motor from excessive current and overheating.

This is a hands-on repair part rather than a kitchen gadget: the right buyer is someone comfortable verifying part numbers, opening a fridge base panel, and making a simple swap. Owners who bought it for old wine fridges and compact units report it saved their appliances — but the listing and owner feedback both stress "check the part code and compare the physical appearance" because there are KLIXON-style and generic-style overloads that look different.

What it is / first look

At a glance: the listing identifies this as part number 6750C-0004R and as an aftermarket compatible replacement (the listing explicitly states it is NOT from LG and the seller is not affiliated with LG Electronics). The product is listed under a long compatibility list of model numbers (LFX25960SB, LSC27926ST, GRL218USGH, and many others) and the listing gives an item code to check: 444RFBYY-520. The brand shown on the listing is "OEM MANIA WE CARE YOUR DIFFICULTY." The listing’s bullet points call the item an "OEM Factory's Compatible Replacement Part" and emphasize checking the image comparison for KLIXON vs generic style overloads before ordering.

Key listing facts you can rely on:

• Part number: 6750C-0004R (also listed as part number/ model number in the specs).
• Compatible item code reference in the listing: 444RFBYY-520 (the listing asks buyers to make sure that code matches what they need).
• Material listed as: Plastic. Item weight listed as 0.01 kg. Special feature listed as: Lightweight.
• The listing calls this an AFTERMARKET replacement, not a genuine LG part.
• The listing specifically notes that the inner disc of all overloads is designed to be free and may make a sound when shaken—this is described as normal.

The product images are named generically (for example, B07FZR53NM_9686.jpg), which doesn’t declare colorways. Available colors may include black and gray—small appliance parts of this type are typically in those tones—so plan around neutral colors when you open panels or replace old parts.

In daily use

"Daily use" for an overload protector means what happens after you fit it: does the compressor start, run normally, and keep the fridge cool? Owners’ experiences form the clearest signal here.

Full-size refrigerators and older units

Across multiple owner reports, the common pattern is: a refrigerator that would start for a moment and then cut out regained operation after replacing the overload protector and, in many cases, the start relay at the same time. Several owners said they resurrected 10- to 18-year-old refrigerators by swapping the overload and the relay. The repeated owner takeaway is that this part is often a cheap, fast diagnostic and repair option when the compressor fails to stay running.

Owners frequently describe this as a simple DIY fix: remove the access panel, swap the old OLP for this unit, and the compressor starts up. The listing also suggests testing the old overload with a multimeter (an owner's note mirrors that advice) to verify continuity before replacement. One practical pattern in owner notes is to replace the start relay at the same time if you're unsure which part is failing; several buyers paired this OLP with a new relay and report success.

Wine fridges and compact refrigerators

Wine fridges and under-counter units are a recurring success story in the owner notes. Several buyers bought this OLP specifically for Magic Chef, Haier, and small wine chillers whose compressors were silent. The listing’s compatibility table includes many compact models, and owners report the part worked on wine coolers even when the original part number had changed over the years. One theme: the replacement often worked even when the part numbers printed on the old protector didn’t match exactly, as long as note-for-note visual comparisons and the item code check were used before fitting.

That said, not every purchase fixed a dead fridge. A handful of owners reported that the part appeared correct but didn’t restore cooling—this is consistent with the nature of the repair: if the compressor itself or the start relay is at fault, a new overload protector alone won’t solve the problem.

Materials & build quality

The spec sheet lists the material simply as "Plastic" and the unit is described as "Lightweight." That’s consistent with owner descriptions: this is a small, plastic-bodied overload protector intended to fit between the compressor and its start device. The listing includes a note that the inner disc is free and may rattle when shaken; the manufacturer/listing describes this as normal and not a defect.

The seller emphasizes visual comparison: image #2 in the listing shows the KLIXON-style overload versus the generic appearance and asks buyers to confirm which style they need. The product description lists multiple legacy part numbers that this item replaces (for example: 1268273, PS3529535, LP21704, and 6750C-0005P). Buyers who reported smooth installs consistently mention that the unit matched the original's mounting and connector arrangement closely enough to plug in without modification.

Because this is an aftermarket part the listing makes clear it is not an LG-manufactured component; the build quality observed by owners is adequate for the duty when it fits. There are no listing claims of premium materials, special coatings, or extra weatherproofing—manufacturing details beyond the generic "Plastic" listing aren’t provided.

Safety considerations

Treat an overload protector as an electrical safety device: it’s directly involved in stopping the compressor if current or temperature exceed safe limits. The listing and owner reports highlight several safety-oriented points you should not overlook:

• Match the exact item code and visual style before purchasing. The listing asks buyers to make sure the item code (444RFBYY-520) and visual form match their failed part; owners echo this as a critical safety/fit step. Installing the wrong style can lead to poor electrical contact or incorrect protection behavior.
• The seller states this is an AFTERMARKET replacement and not an OEM LG part. For critical electrical safety, that distinction matters to some buyers; if you need an OEM part for warranty or certification reasons, verify with your appliance manufacturer.
• The listing and owners note the inner disc is free and may sound loose—this is described by the seller as normal. That rattling is not, in itself, an indicator of failure.
• Owner notes recommend testing the old OLP for continuity with a multimeter before deciding which part to replace. Several owners describe also replacing the start relay when symptoms pointed to the compressor not staying energized.
• There is no listing information about specific safety certifications, temperature ratings, or life-cycle performance. The listing does not claim UL listing or similar certifications, so if that matters for a commercial installation or a safety-conscious home repair, verify the current listing or consult the appliance manufacturer.

Because this is an electrical part the usual cautions apply: disconnect power before accessing compressor terminals and consider professional help if you are not comfortable working with appliance electrical systems. The listing and owner notes advise that correct fit and visual match are essential — mismatched parts may create a risk of poor contact or incorrect overload protection.

Who this is for / who should skip

This part is squarely aimed at DIYers and technicians who want a budget-friendly aftermarket overload protector that fits many LG and name-brand compressors:

• Good fit: owners who successfully used it reported bringing long-lived refrigerators and wine coolers back to life for a small parts cost. If you enjoy a straightforward appliance fix and can confirm the part code and look, this is a sensible, budget-friendly choice.
• Pairing with relay: owners often recommend replacing the start relay at the same time if you’re unsure, because symptoms of a bad relay and a bad overload can look similar. Several buyers bought both parts and fixed appliances that otherwise looked deathly quiet at the compressor.
• Who should skip: if you don’t know how to shut power and access compressor terminals, if you need OEM-branded parts for warranty or compliance purposes, or if your compressor is physically damaged or seized, skip this and consult a qualified appliance technician. Also skip if you cannot verify the item code and visual style match the part you are replacing—fit matters more here than with many consumer goods.

Verdict

As an inexpensive aftermarket overload protector, the 6750C-0004R from OEM Mania is a practical option for hobbyist repair and for rescuing older or built-in compact units when the symptom is a compressor that starts briefly and then stops. The listing’s explicit compatibility roster and the owner reports that confirm successful repairs make this a repeat recommendation for people who can do basic appliance swaps.

It’s not a miracle cure. When the compressor itself is mechanically failed, or when the start relay is the culprit, replacing the overload protector alone won’t fix the fridge. The listing and owner feedback both reinforce that point: this part often fixes the problem, but sometimes it doesn’t — and when it doesn’t, further diagnosis is required.

Check before you buy

• Confirm the item code on your failed part — the listing asks you to match 444RFBYY-520 (verify the code exactly).
• Compare the physical appearance to image #2 in the listing (KLIXON vs generic styles) before purchase; the seller emphasizes this comparison.
• Cross-check the part number: 6750C-0004R (the listing lists it as both model number and part number).
• Confirm your refrigerator model appears in the listing’s compatibility list (the listing includes dozens of LFX, LSC, GRL, GML, and LRSC models by model codes).
• Plan to test the old overload for continuity with a multimeter or consider replacing the start relay at the same time if you’re unsure which component failed—owner experiences commonly recommend this.
• Remember this is an aftermarket replacement, not a genuine LG-branded part; if you need OEM parts for warranty or certification, verify with the manufacturer.

Colors available may include: black and gray (small appliance replacement parts like this are typically neutral-toned). Owners’ repeated reports of successful, low-cost fixes make this an appealing repair-first option — provided you confirm fit and are comfortable with the basic electrical safety steps required to install it.