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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Sierra Filter-Water Separator 21M Short 18-7844Sierra Filter Water Separator 21M Short 18 7844Sierra fuel water separators remove over 98. 8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron. All filters flow @ 90 GPH to feed even the hungriest motor. Recommended to prevent damage to sensitive inboard and outboard fuel injection systems. WARRANTY INFORMATION We are an authorized reseller for all products listed on
Sierra Filter-Water Separator 21M Short 18-7844Sierra fuel water separators remove over 98.8% of emulsified water from your gasoline. Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron. All filters flow @ 90 GPH to feed even the hungriest motor. Recommended to prevent damage to sensitive inboard and outboard fuel injection systems.
WARRANTY INFORMATION
We are an authorized reseller for all products listed on our website. Please contact the manufacturer for warranty info.
SPECS
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UPC:
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030999869821
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MPN:
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18-7844
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Type:
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Short - 3.875"
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Replaces:
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Mercury - 35-807172 - 35-802893Q
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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 14 reviews
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Product Reviews
★★★★★ 5
Best warranty ever.
Outstanding. No questions asked.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 4
Clean air
I bought it to clean the air in the house took a few days to get it linked to my phone but finally got it working. It’s a little complicated because I didn’t know how to set it but getting better at it. I think it’s a good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2023
★★★★★ 5
Awesome Process
Fast, Easy process which is much appreciated. I was able to work through the process efficiently and will be using them on future purchases. I would highly recommend Asurion to protect your next purchase. Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
★★★★★ 5
Great Customer Service
Honored my protection plan without an issue
They issued me a refund for the original cost in which I repurchased the same item.
I also purchased the 4 Year Protection Plan again because their customer service is outstanding 👏
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Company fulfilled commitment
A/C and heat stopped working after 3 years
Asurion fulfilled commitment and refunded purchase price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
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