K24 to Suzuki Samurai Transmission Adapter Plate | CNC Billet Aluminum | RBZ Harmony

Sold out! 6/14/2026

RBZ Harmony K24 to Suzuki Samurai Transmission Adapter Plate

A precision CNC machined billet aluminum adapter plate for Honda K24 engine to the OEM Suzuki Samurai transmission. Designed in-house, machined from 6061-T6 billet aluminum, and finished naturally to preserve the texture of the cutting passes. Includes the engine and transmission alignment pins along with the transmission bolts required for installation. Hardware is Japanese Industrial Standards (JIS) Grade 10.9 throughout. Designed and machined at our Florida Atelier.

This adapter is designed to work with our matching flywheel, sold separately. Both components are required to complete the setup. The flywheel pre-order will open soon at $649. Customers who secure an adapter plate pre-order will receive priority access to purchase the flywheel at this price ahead of its public release.

🟤 K24 to Samurai Compatibility — Designed for the Honda K24 engine to the OEM Suzuki Samurai transmission with precise alignment between crankshaft and input shaft.

🟤 6061-T6 Billet Aluminum — CNC machined from solid billet for strength, dimensional stability, and the visual character of a true machined surface.

🟤 Pins and Hardware Included — Engine alignment pins, transmission alignment pins, and transmission bolts are included in the kit. 

🟤 JIS Grade 10.9 Hardware — Japanese Industrial Standards (JIS) Grade 10.9 hardware throughout.

🟤 OEM K-Series Starter Retained — Uses the original K-series starter in its factory location. No alternate starter or repositioning required.

🟤 Laser Engraved Markings — Torque specifications and part identification engraved directly into the plate.

🟤 Designed for Our Flywheel — Engineered to pair with the RBZ Harmony matching flywheel, sold separately. Both pieces are required to complete the K24 to Samurai setup.

The Pairing

This adapter is one half of the K24 to Samurai drivetrain. The matching flywheel completes the rotating assembly, and the two pieces are engineered to work as one. The adapter alone will not complete the swap.

The clutch is the OEM Samurai style clutch, not included. It is necessary to upgrade to a ceramic material clutch and a heavy duty pressure plate. The setup also uses the original K-series starter, retained in its factory position.

The flywheel pre-order will open soon. Pre-ordering the adapter plate now secures priority access to the flywheel ahead of its public release.

Batch Pre-Order

Quantities are limited, and once the batch is filled, the next run will not begin until production capacity opens again. ETA for shipping is 3 to 4 weeks.

Fitment

Designed for the Honda K24 engine mated to the OEM Suzuki Samurai transmission.

Crafted, Not Just Manufactured

At RBZ, we approach every part the way a jeweler approaches their work, with patience, precision, and pride in the detail. Each adapter is machined from solid billet, deburred by hand, and inspected before it leaves the shop. The cutting passes, the engraved markings, the geometry of the alignment surfaces, all of it is intentional.

Engineering is the foundation of everything we make, but craftsmanship is what gives our parts their character. Each adapter plate ships in a custom built wood crate constructed in-house, with components individually wrapped, labeled, and placed by hand. From the crating to the smallest fastener, the experience is meant to feel considered, not assembled.

We see our work less like a product line and more like a small gallery, pieces built to perform, designed to last, and finished to be admired.

Specifications

• Application: Adapter plate for Honda K24 engine to OEM Suzuki Samurai transmission
• Material: 6061-T6 billet aluminum
• Construction: CNC machined in-house
• Finish: Natural machined, tool marks visible by design
• Hardware: Japanese Industrial Standards (JIS) Grade 10.9, includes transmission bolts
• Alignment: Engine alignment pins and transmission alignment pins included
• Starter: Uses OEM K-series starter in factory position
• Clutch: OEM Samurai style clutch (sold separately)
• Markings: Laser engraved torque specifications and part identification
• Required pairing: RBZ Harmony matching flywheel, sold separately
• Production: Limited quantity
• ETA: 3 to 4 weeks from order
• Packaging: Custom built wood crate, components individually wrapped and labeled
• Designed and manufactured: RBZ Atelier, Florida, USA
• Brand: RBZ Harmony

Frequently Asked Questions

What does this adapter do? It mates the Honda K24 engine to the OEM Suzuki Samurai transmission, providing the precise alignment between the engine crankshaft and the transmission input shaft required for the swap.

Is the flywheel included? No. The matching flywheel is sold separately as a dedicated product. Both the adapter plate and the flywheel are required to complete the K24 to Samurai swap.

Why is the flywheel sold separately? The flywheel is engineered as its own component with its own production timeline. It has not yet entered production. Customers who pre-order the adapter plate now will receive priority access to purchase the flywheel ahead of its public release.

What is the ETA? 3 to 4 weeks from the date of order.

What hardware is included? Engine alignment pins, transmission alignment pins, and adapter bolts required for the install. All hardware is Japanese Industrial Standards (JIS) Grade 10.9.

Does this use the OEM K-series starter? Yes. The adapter retains the OEM K-series starter in its factory position. No alternate starter or modifications required.

What clutch does the setup use? The OEM Samurai style clutch. It is necessary to upgrade to a ceramic material clutch and a heavy duty pressure plate.

What material is the adapter made from? 6061-T6 billet aluminum, CNC machined in-house. The natural machined finish is left visible by design.

Why 6061-T6 aluminum? 6061-T6 is a high strength aluminum alloy used widely in aerospace, motorsport, and precision applications. It holds dimensional accuracy under load and resists fatigue from vibration.

Will this work with other transmissions? This adapter is designed specifically for the OEM Suzuki Samurai transmission. 

What if I miss the first batch? Once the first batch is filled, the next production run will not begin until capacity opens. Pre-ordering now secures both your adapter plate and priority access to the flywheel.

Where is this made? Designed, machined, and finished at our Florida Atelier.

How does the adapter ship? In a custom built wood crate constructed in-house, with every component individually wrapped, labeled, and placed by hand.