Best in 7 days
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Description
P778638 | Donaldson P778638 Primary Air FilterThe Donaldson P778638 Primary Air Filter (SKU P778638) is for Donaldson filters. It features high efficiency cellulose media, corrosion resistant coated steel liners, and Pleatloc spacing to maintain uniform pleats and promote longer service life. This filter meets ISO 5011 standards. Dimensions: length 14. 53 in, inside diameter 4. 17 in, outside diameter 8. 19 in.
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 989 reviews
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Product Reviews
★★★★★ 5
I'll get again.
Style: PA99892
Perfect fit and nice condition
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Great Value
Style: PA99892
Great value. Dealer wants $75 to replace engine filter. The filter is just as good as the OEM one. Total time to install is less than 3 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
★★★★★ 5
fits like OEM
Style: PA99892
This fits a 2023 Civic Sport Touring without issue. It looks indistinguishable to the OEM filter. Getting the lid off the airbox is the hardest part as it is wedged in there pretty good. Other than that, this is a very do-able DIY job, and it's a lot cheaper than having the dealer do it. I have no concerns. Thumbs up.
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Excellent Value, Easy to install
Style: PA99892, Style: PA99892
This filter fit perfectly! I have a 2023 Civic Touring with about 25,000 miles. I bought it new with 2 years of service, and when I went to the dealer for my last free oil change they wanted to charge me $135 to replace my engine air filter and my cabin air filter. Ouch! I have replaced air filters before so I knew it would be a fairly easy job. I was done in about 5 minutes and the filter material is as good as the original Honda filter I replaced.
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Reviewed in the United States on February 18, 2025
★★★★★ 5
Great product
These are very good filters and the price is great. I have found that replacing both these filters at the same time works well for me
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Reviewed in the United States on April 29, 2026
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