Timing Chain Kits 12646386

The DUHUI Timing Chain Kit 12646386 is a complete roller timing chain kit designed for Chevrolet Corvette models with 5.7L V8 engines from 1983 to 1984. This comprehensive kit includes the timing chain and all necessary components, matching OE specification 12646386 and GM small-block engine applications. It is directly interchangeable with leading brands including Cloyes, Melling, and EngineTech.
Specifications
| Parameter | Value |
|---|---|
| DH Code | |
| Part Number | 12646386 |
| Chain Type | Roller |
| Kit Contents | Chain, Tensioner, Guides, Bolts/Screws |
| Engine Displacement | 5.7L V8 |
Note: Dimensional data is based on available sources. This is a timing chain kit designed for Chevrolet Corvette applications. Please verify specifications against your original parts before ordering.
Important: All information on this page is for reference only. Please verify OE numbers, dimensions, and vehicle fitment against your original part before ordering. Contact us for fitment confirmation.
DH Code & OE Numbers & Reference Numbers
DH Code:
OE Numbers: 12646386, 12552953, 12576407, 12556582, TS33210, TCS45993
Reference Numbers (Interchange):
Cloyes: 9-0393SFX
Melling: 3-393SFX
EngineTech: TK1102
SKF: VKML85000
Vehicle Fitment
CHEVROLET: CORVETTE 5.7 – 1983-1984
Please verify OE number, dimensions and vehicle configuration before ordering.
Product Features
- Complete timing chain kit includes chain, tensioner, guides, and bolts – all components for a full timing system replacement
- Roller chain design with steel construction provides reduced friction and improved durability for GM small-block 5.7L V8 engines
- Specifically engineered for Chevrolet Corvette applications
- Kit-based design simplifies ordering and ensures all necessary components are included
- Direct interchange with multiple major brands including Cloyes, Melling, and EngineTech
- Manufactured to OE specifications for reliable performance and service life
- Available for product customization – logo, code, pattern, or words can be applied to the kit or packaging
Installation Notes
- Verify the kit contents match your original parts before installation – verify chain type (roller) and application (5.7L V8)
- Confirm fitment for your specific Chevrolet Corvette model year (1983-1984)
- Inspect all sprockets for wear – replace if necessary
- Clean all timing cover and engine mating surfaces thoroughly before installation
- Torque all bolts to manufacturer service manual specifications
- After installation, rotate the engine manually to verify proper timing alignment
About DUHUI Bearing
Manufactured by DUHUI Bearing – an automotive bearing supplier established in Zhejiang, China, in 2003. DUHUI produces timing chain kits and automotive components to OE specifications. Contact us

