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Description
Thermostat Housing YM129100-49800 for Komatsu Engine 3D78-1 3D84-2 3D84E-3 3D84N-2 3D88E-3 4D84-2 4D84E-3 4D88E-3Part Number: YM129100 49800, YM12910049800Application: Fit for Engine: Komatsu 3D78 1A, 3D78 1C, 3D78 1D, 3D78 1E, 3D78 1F, 3D84 2A, 3D84 2GA, 3D84E 3A, 3D84E 3B, 3D84E 3C, 3D84E 3D, 3D84E 3E, 3D84N 2AA, 3D84N 2C, 3D84N 2CA, 3D84N 2FA, 3D84N 2H, 3D84N 2K, 3D84N 2L, 3D88E 3A, 4D84 2A, 4D84 2B, 4D84 2GA, 4D84E 3B, 4D84E 3C, 4D88E 3A, 4D88E 3B, S3D84 2B, S3D84 2BA, S3D84 2J, S3D84E 3A, S3D84E 3B
Part Number:
YM129100-49800, YM12910049800Application:
Fit for Engine:Komatsu 3D78-1A, 3D78-1C, 3D78-1D, 3D78-1E, 3D78-1F, 3D84-2A, 3D84-2GA, 3D84E-3A, 3D84E-3B, 3D84E-3C, 3D84E-3D, 3D84E-3E, 3D84N-2AA, 3D84N-2C, 3D84N-2CA, 3D84N-2FA, 3D84N-2H, 3D84N-2K, 3D84N-2L, 3D88E-3A, 4D84-2A, 4D84-2B, 4D84-2GA, 4D84E-3B, 4D84E-3C, 4D88E-3A, 4D88E-3B, S3D84-2B, S3D84-2BA, S3D84-2J, S3D84E-3A, S3D84E-3B
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Premium Quality Cabin Air Filter Replacement
Size: Accord 2018-22 1.5L Gas, Size: Accord 2018-22 1.5L Gas
I like that the cabin air filter has charcoal in it to which help absorb oder which adds functionality. The feel of this filter feels like a fabric is used which adds quality to it over the thin water ones out there in the market. The install was easy and fit right inside the filter location with ease. Even though this filter is a higher quality filter of OEM, it does not restrict any airflow whatsoever.
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Reviewed in the United States on October 13, 2025
★★★★★ 5
The Best Filter Jerry, The Best!
Size: 2" x 10" x 11"
I installed once and it seems to work like a charm. I probably need to go rinse it off since it's been months--but I no longer have Honda telling me I need to replace an air filter when I go get an oil change. They tried but I knew it wasn't mine. LOL. Easy to install, and extremely good quality. No gaps in filter area either.
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Perfect fit for my fit
Size: 2" x 10" x 11"
Bought this for my Honda fit sport. Perfect fit for my fit. We shall see how it works out in the long run. I'm guessing every six months I'll wash it out, give it a light piling with the refresher kit I bought. The car doesn't get driven a lot during the year, so, doing it this way should be more than fine.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Premium, Reusable Cabin Filter – Worth It Long-Term
Size: 2" x 10" x 11"
I've been using the K&N Lifetime Washable Cabin Air Filter in my vehicle for several months, and here's my experience:
Pros:
Washable & Reusable: Eliminates the need for frequent replacements, saving money over time.
Improved Airflow: Noticed a slight increase in airflow through the vents, enhancing cabin comfort.
Odor Control: Effectively reduces musty smells, providing a fresher cabin environment.
Cons:
Initial Cost: Priced higher than disposable filters, but the long-term savings offset this.
Cleaning Required: Needs periodic cleaning to maintain performance, which might be inconvenient for some users.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
Must have over other filters.
Size: 2" x 10" x 11"
Amazing KN never fails for cabin filter works great in my 2021 Honda Civic hatchback sport touring.Must have for the 10th Gen Civic better air flow in car and cleaner smell easy to wash and reuse.
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Reviewed in the United States on April 25, 2026