{"product_id":"new-belt-tensioner-replaces-fits-for-caterpillar-3441722-344-1722-for-cat-320d-320d2-323d-324e-329e","title":"New Belt Tensioner 3441722 344-1722 for CAT C6.6 C7.1 Engine 320D 320D2 323D 324E 329E Excavator","description":"\u003ch3\u003e✅ Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMake:\u003c\/strong\u003e Caterpillar (CAT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Caterpillar C6.6 \/ C7.1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Numbers:\u003c\/strong\u003e 3441722, 344-1722\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits CAT Excavators:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e320D Series:\u003c\/strong\u003e 320D GC, 320D L, 320D2, 320D2 GC, 320D2 L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e320E Series:\u003c\/strong\u003e 320E, 320E L, 320E LN, 320E LRR, 320E RR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e323D Series:\u003c\/strong\u003e 323D L, 323D2 L, 323E L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e324E Series:\u003c\/strong\u003e 324E, 324E L, 324E LN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e329E Series:\u003c\/strong\u003e 329E, 329E L, 329E LN\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits CAT Mobile Hydraulic Power Unit:\u003c\/strong\u003e 329E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Verify your machine model, engine serial number, and existing tensioner part number before ordering. Contact us with your machine serial for fitment confirmation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e🔧 Product Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Replacement:\u003c\/strong\u003e Drop-in fit for Caterpillar C6.6 \/ C7.1 engines — matches original belt tensioner arm, spring tension, pulley diameter, and mounting bolt pattern specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Tensioner — Critical Accessory Drive System Component:\u003c\/strong\u003e The belt tensioner maintains correct tension on the serpentine \/ accessory drive belt — ensuring reliable drive of the alternator, water pump, air conditioning compressor, and other belt-driven accessories on the CAT C6.6 \/ C7.1 engine. A failed tensioner causes belt slippage, belt noise, accessory drive failure, and potential engine overheating from water pump failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCovers CAT 320D \/ 320E \/ 323D \/ 324E \/ 329E Excavator Lineup — 20+ Model Variants:\u003c\/strong\u003e One tensioner covers CAT’s complete 320D, 320E, 323D, 324E, and 329E mid-size excavator series — all powered by the Caterpillar C6.6 or C7.1 common rail diesel engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Month Warranty:\u003c\/strong\u003e Backed by a 12-month warranty for reliable performance in demanding excavator applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores Correct Accessory Drive Belt Tension:\u003c\/strong\u003e Corrects belt slippage, squealing, accessory drive failure, and belt wear caused by a worn or seized tensioner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew Aftermarket Quality:\u003c\/strong\u003e Manufactured to Caterpillar OEM specifications for reliable belt tensioner performance in demanding excavator applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e📦 What's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× Belt Tensioner (3441722 \/ 344-1722) — New Aftermarket\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e🔑 Key Specs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e 3441722, 344-1722\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Accessory Drive Belt Tensioner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Caterpillar C6.6 \/ C7.1 Common Rail Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Equipment:\u003c\/strong\u003e CAT 320D \/ 320D2 \/ 320E \/ 323D \/ 323D2 \/ 324E \/ 329E Excavators (20+ variants)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 Months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New Aftermarket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 3441722\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e⚠️ Please verify your machine model, engine serial number, and existing tensioner part number before purchasing. If unsure of compatibility, contact us with your CAT machine serial number and we will confirm fitment.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fuel Parts Depot","offers":[{"title":"Default Title","offer_id":47408797974684,"sku":"3441722","price":144.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/7843\/8300\/files\/new-belt-tensioner-3441722-344-1722-for-cat-c66-c71-engine-320d-320d2-323d-324e-329e-excavator-8032919.png?v=1786802594","url":"https:\/\/fuelpartsdepot.com\/products\/new-belt-tensioner-replaces-fits-for-caterpillar-3441722-344-1722-for-cat-320d-320d2-323d-324e-329e","provider":"Fuel Parts Depot","version":"1.0","type":"link"}