Caterpillar Belt Tighteners Keep Your Engine Running Smoothly
Caterpillar belt tighteners also known as belt tensioners or idler pulleys are essential for maintaining proper belt tension on your engine’s accessory drive system. These components help prevent belt slippage, reduce wear on belts and pulleys, and ensure efficient operation of critical systems like the alternator, water pump, and air conditioning compressor. Each Caterpillar belt tightener is specifically designed for your engine model including 3116, 3126, C7, C9, C12, C15, and more for precise fit and reliable performance. Genuine or high quality replacement tighteners for CAT equipment are built to withstand the vibration and heat of heavy-duty operation, helping you avoid unexpected breakdowns and costly repairs.
Regular inspection and replacement of worn or damaged belt tighteners can extend the life of your engine belts and protect your equipment from downtime. Propel Parts offers a wide range of high quality belt tighteners for Caterpillar equipment, with clear compatibility listings and fast shipping, so you can quickly find the right part for your engine.
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1979641 Pulley As.Idler for CAT 793F-XQ, 797, 797B & more
$25.65Six Month Financing
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2278313 Idler Pulley Pv8 for CAT 345C MH, 349D, 349D L & more
$72.66Six Month Financing
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New 1333544 Tightener Belt Replacement suitable for Caterpillar 854G, 992G, 994F, C-10, C-12, 793D, 797B, 3176C, 3196, 3512C, 3508B, 3516, 3516B, 3524B, and more
$56.90Six Month Financing
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New 1333545 Tightener Replacement suitable for Caterpillar 3176C, 3196, C-10, C-12, CPT372, more
$59.36Six Month Financing
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New 1352142 Tightner Replacement suitable for Caterpillar 3116, 3126, 3126B, 3126E, C9, C7, CX31-C9I, TH31-C9I, TH31-C9P, CX31-P600, TH31-E61, 140M, TK1051, 3176C, MT735, MT745, MT755, MT765, MTC735, MTC745, MTC755, MTC765, AP-1000D, AP-1055D, BG-2455D, B
$59.36Six Month Financing
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New 1352151 Tightener Belt Replacement suitable for Caterpillar 3116, 3126, 3126B, 3126E, C7, SR4, C15, C7, AP-755, and more
$49.98Six Month Financing
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New 1382514 Tensioner Asm Replacement suitable for Caterpillar 854G, 992G, 3126, 3126B, 3126E, C7, 797, 3508B, 3524B, and more (1900642)
$50.45Six Month Financing
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New 1445611 Pulley As-Idler Replacement suitable for Caterpillar
$45.27Six Month Financing
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New 1900634 Tightener Belt Replacement suitable for Caterpillar 3116, C-10, C-12, C9, C-9, MT735, MT745, MT755, MT765, MTC735, MTC745, MTC755, MTC765, and more
$50.69Six Month Financing
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New 1900642 Tightener Belt Replacement suitable for Caterpillar 854K, 657E, 657G, 621B, 621E, 621F, 621G, 623B and more below
$50.45Six Month Financing
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New 1900643 Tightener- Replacement suitable for Caterpillar 627G, 637D, 637E, 637G, 924H, 924HZ, 928H, 928HZ, 930H, 938G II, 950G II, 950H, 962G II, 962H, 966G II, 972G II, D5N, D6N, D9T, 953C, 963C, C15, C7, C9, 561N, C13, C7, C9, CX31-C13I, CX31-C9I, TH
$47.97Six Month Financing
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New 1900649 Tightener Belt Replacement suitable for Caterpillar 3126E, 3406E, C-10, C-12, C-15, C-16, C-18, C15 and more below
$59.36Six Month Financing
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New 2002279 Tightener- Replacement suitable for Caterpillar D11T, D8T, D9T, 3406E, C-12, C-15, C-16, C-9, C13, C15, 583T, 587T, TH35-C13T, TH35-C15I, TH35-E81, 365C L, 385C, C15, C18, 365C, 365C L, 374D L, 385C, 385C FS, 385C L, 385C L MH, 385C, C32, and
$50.75Six Month Financing
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New 7E0339 Tensioner Replacement suitable for Caterpillar 3116, and more
$48.44Six Month Financing
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New 7E3999 Tensioner Replacement suitable for Caterpillar 3116, 3126, 3126B, 3126E, more
$49.98Six Month Financing
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