HKS Fine-Tune Timing Belt for Toyota (178Y) 3S-GTE 24999-AT007

Product description HKS 178Y Fine-Tune Timing Belt for Toyota 3S-GTE Celica ST182/185 & Early Mk2 MR2 2.0L - 3SGTE The HKS Uprated Timing Belt is designed for compatible Toyota 3S-GTE engines requiring a 178-tooth timing belt. It is intended for use in standard, tuned and motorsport applications where increased resistance to heat, load and repeated high-RPM operation is required. The belt uses H-NBR rubber construction to support durability and dimensional stability under changing engine temperatures. Features Designed for compatible Toyota 3S-GTE engines 178-tooth timing-belt specification Uprated replacement for selected standard timing belts H-NBR rubber construction Designed to resist elevated temperatures and operating loads Helps maintain stable camshaft timing when correctly tensioned Suitable for standard, tuned and motorsport engine builds Compatible with selected HKS adjustable cam pulleys Specifications Product type: Uprated engine timing belt Number of teeth: 178 Main material: H-NBR rubber compound Engine compatibility: Selected Toyota 3S-GTE engines Installation Notes Inspect the tensioner, idlers, water pump and camshaft pulleys before installation. Set the timing marks and belt tension according to the correct engine procedure. Replace worn or damaged timing components at the same time. Rotate the engine by hand and recheck the timing marks before starting. Important: A 178-tooth count alone does not guarantee fitment. Confirm the engine generation, belt width, tooth profile, pulley arrangement and HKS part number before ordering. Incorrect timing-belt installation or tension can cause severe engine damage, so fitting should be completed by a suitably qualified technician.