Product overview
HENGJIAN bushing with disc Φ6xΦ24x10 S7-Z300-23-10 (11) is a genuine exhaust mounting component for the Hengjian Z300 2-stroke enduro cylindrical bushing with integrated disc (flange) is designed to center an M6 fastening bolt, distribute clamping force over a 24 mm seat and provide a stable 10 mm spacer within the exhaust assembly on S7/S8-Z300 models.
Key features
- Original HENGJIAN exhaust hardware with manufacturer reference S7-Z300-23-10, matched to the Z300 chassis and exhaust layout.
- Precise dimensions of Φ6 mm inner diameter, Φ24 mm outer diameter and 10 mm thickness to maintain correct exhaust alignment.
- Integrated disc-style flange helps spread load around the mounting point, reducing local stress on exhaust brackets and frame lugs.
- Supports secure, low-play mounting of the expansion chamber or muffler, contributing to stable exhaust positioning and consistent sealing.
- Developed for off-road use on Hengjian Z300-based enduro motorcycles, where repeated impacts and vibration require reliable exhaust fixation.
Technical specifications
| Brand | HENGJIAN |
| Part type | Bushing with disc for exhaust mounting |
| Manufacturer reference | S7-Z300-23-10 (position 11 in exhaust assembly) |
| Application | Exhaust system hardware on Hengjian Z300 2-stroke models (pipe / muffler mounting points) |
| Inner diameter | Φ6 mm |
| Outer diameter | Φ24 mm |
| Thickness | 10 mm |
| Engine platform | Hengjian Z300 293.2 cc 2-stroke, water-cooled single-cylinder enduro engine |
| Typical mounting location | Between exhaust bracket and frame / subframe at Z300 exhaust fixing points |
The S7-Z300-23-10 bushing with disc appears among the original exhaust components for Hengjian Z300 models, alongside the exhaust pipe, muffler, connecting pipe and exhaust washers, confirming its role as part of the factory exhaust mounting kit.
These motorcycles use the Hengjian Z300 293.2 cc water-cooled 2-stroke single-cylinder engine, so exhaust hardware such as this bushing is dimensioned specifically for that platform.
Typical use cases
- Replacement of worn, deformed or lost exhaust mounting bushing on Hengjian Z300-based enduro motorcycles.
- Restoration of factory exhaust alignment after impacts or vibration-related loosening of the exhaust system.
- Completing an OEM-spec exhaust system rebuild together with original exhaust pipe, muffler, connecting pipe and exhaust washers.
Compatibility
| Brand | Model | Year |
| Hengjian | S7-Z300 (2-stroke enduro) | All model years using S7-Z300 exhaust assembly |
| Hengjian | S8-Z300 / S8-Z300 Race Version (2-stroke enduro) | All model years using S7-Z300-23 series exhaust components |
