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Built to support repair shops, fleets, and equipment owners with dependable parts sourcing and responsive service.
Qualifying new parts include 1-year coverage. Review the Warranty Policy section for coverage details, claim steps, and exclusions.
Eligible orders may qualify for returns within 90 days. See the Easy Return Policy section for conditions and next steps.
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| Engine Number | 6B5.9, ISF3.8 CM2220 F103, ISF3.8 CM2220 F116, QSF, ISF3.8 CM2220 AN, ISF3.8 CM2220, B4.0 CM2620 B154B, B4.5 CM2620 B180B, F3.8 CM2350 F120B, F3.8 CM2620 F137B, F4.5 CM2620 F139B, ISF3.8 CM2220 F110, F4.5 CM2620 F141C, QSX15 CM570, B4.5 CM2620 B158B, ISF3 |
| Compatible Engine Brand | For CUMMINS |
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Official answers about compatibility, package contents, specifications, installation, shipping, and warranty for Belt Tensioner 5287020 for Cummins Engine ISF3.8 QSF 6B5.9 B4.5 QSX15 F4.5 F3.8 D4.0 B4.0 (SKU: ESY93779).
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Every new aftermarket part from us includes a 1-year warranty. Full terms, coverage, and how to make a claim: Warranty Assistance.
We ship to customers around the world. Orders are sent with our standard courier service—trackable, dependable, and easy to work with. On this product page, use Get Estimate under the price to see shipping cost and estimated delivery for your location. For destinations, rules, and full details, read our Shipping Policy Details.
We want you to be confident in your order. If you are not satisfied, you may qualify for a return or refund within 90 days, subject to conditions. See our Easy Return Policy for eligibility, steps, and exceptions.
