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The 39 Clues Box Set Mystery Adventure Series 11 Books Collection Set Ages 9–12 - Paperback
The 39 Clues Box Set Mystery Adventure Series 11 Books Collection Set Ages 9–12 - Paperback
The 39 Clues Box Set Mystery Adventure Series 11 Books Collection Set Ages 9–12 - Paperback
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The 39 Clues Box Set Mystery Adventure Series 11 Books Collection Set Ages 9–12 - Paperback

Marsoni M251S
Sale price$17.98
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The 39 Clues Box Set Mystery Adventure Series 11 Books Collection Set Ages 9–12 - PaperbackTitles in This Set: The Maze of Bones One False Note The Sword Thief Beyond The Grave The Black Circle In Too Deep The Viper's Nest The Emperor's Code Storm Warning Into the Gauntlet Vespers Rising Condition: BRAND NEW Format: Paperback ISBN: 9789124254186 Overview: Step into a globe trotting mystery where a single familys power becomes a perilous treasure hunt. The 39 Clues Series Complete Collection gathers eleven adventure filled novels that kick
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J
Verified Purchase
Joe H.
Waukegan, US
★★★★★ 5
Very Expensive
Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
R
Verified Purchase
rkab8745
West Palm Beach, US
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
C
Verified Purchase
Christopher D. Bodirsky
Draper, US
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
B
Verified Purchase
Britincali
Birmingham, US
★★★★★ 5
Upgrade from OEM
After seeing a quite ludicrous $403 quote to change 4 spark plugs in a Mazda3 I decided to show my son how easy it is. These were an upgrade from OEM parts. They were gapped perfectly for the car. They took 20mins to fit and work fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026

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