LG Dryer Drum Seal Replacement — Front and Rear Felt Gaskets
LG dryers use felt gaskets (drum seals) at both the front and rear of the drum to prevent heated air from escaping the drum cavity. These are not rubber gaskets like a washer door boot — they are strips of industrial felt that press against the drum edges as it rotates. Over time, the felt wears thin, develops gaps, or hardens, allowing hot air to escape the drum and reducing drying efficiency.
Front Seal vs Rear Seal
Front drum seal: A felt strip attached to the front bulkhead that the drum lip rides against. This seal also prevents lint from escaping the drum at the front. When it wears, you may see lint accumulating on clothing (lint recirculates through the gap), feel hot air escaping from around the door, and hear a scraping or squealing sound as the drum edge contacts metal instead of felt.
Rear drum seal: A felt strip or rubber gasket at the back of the drum where it meets the rear bulkhead. This seal contains the hot air in the drum cavity. Failure here is less noticeable visually but shows up as extended drying times because heated air bypasses the drum and exits through the back without drying clothes.
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Multimeter ($85), vacuum pump ($250), diagnostic software, and specialized hand tools. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Symptoms of Worn Drum Seals
- Clothes have dark marks or streaks — lint and residue from the worn felt transfer to fabrics
- Squealing or scraping noise during tumbling — metal-on-metal contact where the felt has worn through
- Hot air felt around the door frame — front seal gap
- Dryer runs but clothes take much longer to dry — heated air escaping through seal gaps
- Lint found outside the drum, inside the dryer cabinet — lint escapes through the front seal gap
- Visible felt deterioration — open the door and inspect the felt strip around the drum opening
Part Numbers and Pricing
| Part | LG Number | Price |
|---|---|---|
| Front drum seal (felt) | 4986EL2004A | $20-$70 |
| Rear drum seal (felt/rubber) | 4986EL2002A | $15-$55 |
| Front + rear seal kit | Various aftermarket | $20-$60 |
| Professional replacement | — | $150-$250 |
Drum seal replacement is typically combined with other maintenance when the dryer is disassembled — drum rollers, idler pulley, and belt are often replaced at the same time since accessing them requires the same disassembly.
Safety First — Know the Risks
Appliances involve high voltage (120-240V), pressurized water, gas lines, and chemical refrigerants. Over 400 DIY repair injuries are reported yearly. Our techs are licensed and insured — let them handle the risk.
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Tools Required
- Phillips #2 — for panel removal
- Putty knife — for scraping old adhesive from the bulkhead
- High-temperature adhesive — to bond the new felt strip to the bulkhead (some kits include adhesive)
- Rubbing alcohol — to clean the adhesive surface before applying new seal
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Replacement Procedure
Full dryer disassembly is required for both front and rear seals. Disconnect power (240V). Remove the top panel, front panel, and drum belt. Lift the drum out.
Front seal: Peel or scrape the old felt strip off the front bulkhead. Clean the surface with rubbing alcohol. Apply high-temperature adhesive to the bulkhead surface and press the new felt strip into position. Allow the adhesive to set for 15-30 minutes before reassembling.
Rear seal: The rear seal attaches to the rear bulkhead or around the rear bearing housing. Remove the old seal, clean the surface, and apply the new one with adhesive.
Reassemble the drum, belt, front panel, and top panel. Run a timed dry cycle and check for air leaks and noise.
The Real Cost of DIY
Average DIY attempt: $150-400 in tools you may use once, plus the risk of further damage. Our diagnostic visit costs $0 — we find the problem and give you an honest quote.
Licensed & Insured · 90-Day Warranty · Same-Day Service
When to Replace Both Seals at Once
If one seal is worn, the other is likely in similar condition — they experience the same operating hours. Since accessing either seal requires full disassembly, replacing both at once avoids a second teardown. A front + rear seal kit costs $20-$60 aftermarket.
Frequently Asked Questions
My LG dryer leaves dark marks on clothes. Is that the drum seal?
Yes — worn felt transfers residue to fabrics, especially light-colored items. Open the door and inspect the felt strip where the drum meets the front panel. If it is thin, hardened, or missing sections, replace it.
Can I use any felt material or does it need to be LG-specific?
The felt must be high-temperature rated (dryer operating temps reach 150-180F). Standard craft felt will melt or shrink. Use OEM or aftermarket parts specifically designed for dryers.
How long do LG dryer drum seals last?
Typically 8-12 years. Heavy use (multiple loads daily) and over-drying (running longer than needed) accelerate wear. Using auto-dry instead of timed dry reduces drum rotation time and extends seal life.
LG dryer making noise or marking clothes? Our technicians replace drum seals, rollers, and belts in a single visit. Book a technician →
