The HKS Upgraded Timing Belt for the Toyota 3S-GE / 3S-GTE engine is a strengthened replacement in belt size 177Y (177Y25.4), fitting Celica ST18x and MR2 SW20 applications. HKS Fine Tune belts use heat-resistant H-NBR grade tooth rubber and a strengthened construction that holds stable tension under heat expansion and high RPM, reducing cracking, stretch, and tooth skip versus an OEM belt. Designed for tuned, high-output engines and suited for use with the HKS Slide Cam-Pulley.
Specifications
| Series | HKS Fine Tune |
| Type | Timing Belt |
| Engine | Toyota 3S-GE / 3S-GTE |
| Application | Celica ST18x, MR2 SW20 |
| Belt Size | 177Y (177Y25.4) |
| Construction | Heat-resistant H-NBR; reinforced |
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