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New Stretch Fit Drive Systems Demand New Solutions.

NAPA Belts/Hose Micro-V® Stretch Fit® Belts

New Stretch Fit applications don’t require a tensioner! Enter a new and innovative belt solution. NAPA Belts/Hose Micro-V® Stretch Fit® Belts, with exclusive self-tensioning technology, are the first and only Aftermarket belts engineered to fit and perform properly on these unique drive systems. Simply put: there are NO substitutes.

NAPA Belts/Hose Micro-V Stretch Fit Belts fit these unique applications like a glove. On the surface, Stretch Fit belts may look like standard v-ribbed belts, but inside they are dramatically different. The secret is in NAPA Belts/Hose’s new TwistLock® technology — where the strength and flexibility of advanced polyamide tensile cord is surrounded by a specially formulated adhesive that literally locks on to the cord, allowing the cord to elongate and stretch but never lose tension.  

View the Brochure on Stretch Fit Belts here.

In addition, our patented highly engineered EPDM belt ribs are extremely resistant to oil leaks, wear and pilling. Prior to installation, Stretch Fit belts are shorter than the actual working length, but once installed they automatically tension, maintaining the proper tension over the life of the belt and ensuring optimum load-carrying capacity. Standard v-ribbed belts should never be used on these special accessory drives, as they will not perform and will fail prematurely.

Installation Instructions

NAPA Stretch Fit belts require specialized service instructions in order to complete a belt repair. The service instructions for each application are available to be viewed in the links below. In order to determine which link to click on, match the Alpha character on the NAPA belt sleeve with the same Alpha character below and click on the link to view the service instructions. It is possible that a special installation tool may be required in order to complete the belt replacement. 

Installation A
Installation B
Installation C
Installation D
Installation E
Installation F
Installation G
Installation H
Installation I
Installation J
Installation K
Installation L
Installation M

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