WSM SIERRA - Thermostat Kit Mercury 135 - 175 Hp DFI - 18-3605

WSM SIERRA - Thermostat Kit Mercury 135 - 175 Hp DFI - 18-3605

Marsoni

M251S

$107.97

Get it in 3 business days with 1 day shipping. Friday, May 29

WSM SIERRA - Thermostat Kit Mercury 135 - 175 Hp DFI - 18-3605Item#: 18 3605 Thermostat Kit Mercury 135 175 Hp DFI Brand: Sierra FITMENTS: Make Model Year(s) Mercury 6 Cyl 3. 501 Bore 2. 5L Optimax 135 1998 2012 Mercury 6 Cyl 3. 501 Bore 2. 5L Optimax 150 1998 2014 Mercury 6 Cyl 3. 501 Bore 2. 5L Optimax 175 2001 2014

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Just like me and you breathing, your car performs better when it can breathe freely and cleanly. My philosophy with an engine air filter is to replace with cheap and often. You can't control the quality of air coming into your system but you can control the filtering, so I'd rather replace the filter on an accelerated schedule with a cheap product than to invest into something more expensive and have it perform dirty for longer than it should. For my Honda CRV 2024 Hybrid, this filter fits snuggly and performs well.

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Reviewed in the United States on December 1, 2025

Verified Purchase

Jeff

West Palm Beach, US

★★★★★ 5

honda civic

Size: 17220-5AA-A00

Great item and price, well packed. Arrived as scheduled. They fit my Honda Civic Xle

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 23, 2026

Verified Purchase

Digigeek

Lexington, US

★★★★★ 5

Good non OEM replacement filter

Size: 165465NA1C

I recently purchased the Forccord 2-Pack Engine Air Filter for my INFINITI QX50 (2025/2024-2019) and QX55 (2025/2024-2022), and overall, it’s a decent alternative to the OEM filter. Pros: Perfect Fit – Installed easily in my QX50 without any issues. Fits just like the factory filter. Good Filtration – The material seems effective in trapping dust and debris, helping keep the engine clean. Affordable 2-Pack – Great value compared to dealership prices, especially if you replace filters regularly. Improves Airflow – Noticed a slight improvement in engine responsiveness and fuel efficiency. Cons: Not OEM Quality – The filter material feels a bit thinner and less sturdy compared to the original Infiniti filter. May Not Last as Long – While it works fine now, I’m unsure if it will hold up for the same mileage as an OEM filter. No Installation Instructions – Though easy to install, a simple guide would have been helpful for first-time users. Final Thoughts This Forccord air filter is a good budget-friendly replacement that fits well and performs decently. However, if you prioritize OEM durability and quality, you may want to stick with the original Infiniti filter.

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Reviewed in the United States on February 15, 2025

Verified Purchase

Amazon Customer

Battle Creek, US

★★★★★ 5

Keeps your engine running

Size: 17220-5AA-A00

Fits well, fair price, does the job as promised

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Reviewed in the United States on April 20, 2026