The HKS Fine Tune Timing Belt is a replacement cam drive belt for the Mazda B6-ZE and BP twin cam engines used in the NA and NB MX-5. It is the Sport grade belt in the HKS Fine Tune range and installs in place of the factory belt. HKS lists it across the 1.6 liter NA6CE and NB6C cars and the 1.8 liter NA8C and NB8C cars, covering production from September 1989 through 2005. A timing belt change is normally done alongside the tensioner and water pump, and it is the natural point to fit adjustable cam pulleys while the front of the engine is open.
| Type | Fine Tune Timing Belt, Sport grade |
| Engine | Mazda B6-ZE (1.6L), BP-ZE / BP-ZET (1.8L) |
| Chassis Covered | NA6CE, NA8C, NB6C, NB8C |
| Quantity | 1 |
| Part Number | 24999-AZ001 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1993 | Mazda | MX-5 Miata | B6-ZE |
| 1994-1997 | Mazda | MX-5 Miata | BP |
| 1999-2005 | Mazda | MX-5 Miata | BP |
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