Heavy-duty SMART Conversions adapter plate designed to mate an Isuzu 4JB1 diesel engine to a Hyundai H100 manual gearbox. Supplied with the centre spigot bush and mounting hardware shown.
Made to order: this adapter plate is manufactured on demand. Please allow 2 to 3 working days for manufacture before dispatch.
The SMART Conversions Isuzu 4JB1 to Hyundai H100 Gearbox Adapter Plate is a purpose-built conversion component designed to mate an Isuzu 4JB1 diesel engine to a Hyundai H100 manual gearbox.
Manufactured as a robust steel adapter assembly, the plate provides the required mounting interface between the 4JB1 engine and Hyundai H100 gearbox, making it suitable for engine swaps, drivetrain conversions, replacement applications and custom automotive builds.
The adapter incorporates the required engine and gearbox mounting points together with a machined centre location and supplied spigot bush to correctly locate the gearbox input shaft.
What's Included
- SMART Conversions adapter plate
- Centre spigot bush
- Engine/gearbox mounting hardware
- Bolts, studs, nuts and washers as shown in the product photographs
Key Features
- Designed for Isuzu 4JB1 diesel engines
- Designed to mate with Hyundai H100 manual gearboxes
- Heavy-duty steel construction
- Machined centre spigot location
- Precision-drilled mounting points
- Supplied with required mounting hardware as pictured
- Ideal for engine swaps and custom drivetrain conversions
- Practical solution for combining the Isuzu 4JB1 engine with the Hyundai H100 gearbox
Fitment
- Engine: Isuzu 4JB1
- Gearbox: Hyundai H100 manual gearbox
Important Fitment Information
This conversion kit is intended specifically for the Isuzu 4JB1 to Hyundai H100 gearbox combination.
Customers should confirm their exact engine and gearbox configuration before ordering, as variations may exist between different vehicles, model years and drivetrain configurations.
Flywheel, clutch, gearbox and engine are NOT included unless specifically stated.
Lead Time
Made on demand – allow 2 to 3 working days for manufacture before dispatch.
Product Specifications
- Brand: SMART Conversions
- Product Type: Engine-to-Gearbox Adapter Plate
- Engine: Isuzu 4JB1
- Gearbox: Hyundai H100 Manual
- Application: Engine / Gearbox Conversion
- Construction: Steel
- Includes Spigot Bush: Yes
- Mounting Hardware: Yes, as pictured
- Lead Time: Made to order, 2 to 3 working days

