KraftWerks Supercharger Drive Belt - Mazda MX-5 Miata 1994-2005

A supercharger drive belt is a wear item. It carries the entire load between the crankshaft and the Rotrex head unit, and as the belt ages the teeth round off and drive starts slipping under load. Boost goes before the belt does, so a tired belt usually shows up as power you have lost rather than a breakdown.

This is the KraftWerks replacement cogged drive belt for the Mazda MX-5 Miata 1994-2005 supercharger system. It matches the belt the kit was built around, so your drive ratio, pulley sizing, and tune are unaffected by fitting it.

KraftWerks does not publish a mileage interval for these belts, because belt life depends entirely on how the vehicle is used. A tracked car will go through belts far faster than a street car. Inspect yours whenever the oil is changed, replace it once the teeth show wear or the edges begin to fray, and keep a spare on the shelf.

Features

• Direct replacement for the drive belt supplied with the KraftWerks Mazda MX-5 Miata 1994-2005 supercharger system
• Maintains the original drive ratio, so boost levels and tuning stay as set
• Fits the KraftWerks drive system with no change to brackets or pulleys
• Cogged tooth profile transmits drive without slipping under boost
• Suits scheduled replacement or carrying as a spare
• Supplied as a single belt, not a kit

Specifications

• Part Number: 158-10-5174
• Application: KraftWerks Mazda MX-5 Miata 1994-2005 supercharger system
• Belt Profile: Cogged
• Sold As: Single belt

Before You Order

• This replaces the supercharger drive belt. It is not a factory accessory belt.
• Confirm which drive width your kit uses before ordering. KraftWerks built early systems around a 20 mm belt and later systems around a 30 mm belt, and the pulleys differ between them.
• Fitting a belt does not correct a worn idler or a misaligned bracket. Check both while the belt is off.

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. Check the legality of aftermarket forced-induction parts in your state and locality before purchase. Some items are intended for off-road use only.