Manually tested for June 2026: Get the best Mr. Cool coupons, promo codes, and verified online deals. Explore Rewards-exclusive savings and start shopping your favorite products with confidence today.
| Discount | Details | Validity |
|---|---|---|
| 15%Off | 15% Off 119574-33011 Yanmar Engine Oil Cooler | 4-6-26 |
| 10%Off | 10% Off Trust Guard Security Scanned | 6-6-26 |
| $159Off | Indmar Heat Exchangers For $159 At Mr. Cool | 12-6-26 |
| $371Off | Snag Fresh Water Cooling Kits At $371.72 – Limited-Time Offer | 10-6-26 |
| $36Off | Boltpk6 Cummins Aftercooler End Cap Bolt 6 Pack M10 1.50 X 35 Ss Flange Bolt For $36 | 6-6-26 |
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