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1936–1947 Knucklehead Engine
1/6 Scale Knucklehead - Full Drive Edition -
¥38,800
In stock｜Ships in 2–3 days
🚚 Shipping
- Japan: Free shipping
- USA / Europe / Australia & other countries: ¥2,000 (tracked, estimate)
- Worldwide free shipping on 2+ engine models or orders over ¥35,000 (applied automatically)
- In-stock items ship in 2–3 days; made-to-order in 1–2 weeks
Duties & taxes: what you’ll pay
US orders: import duties are prepaid by us. Nothing to pay on delivery.
Other countries: import duties, VAT and handling fees may be charged on delivery and are the buyer’s responsibility.
Every parcel is declared at full value and fully insured.
1936–1947 Knucklehead Engine
Engine, transmission & primary — fully recreated in 1/6 scale
The Full Drive Edition, faithfully recreating the entire power transmission from engine to transmission
🏆 What is the Full Drive Edition
A special edition that recreates not just the engine but the complete drivetrain, including the transmission and primary case. Just like the real motorcycle, it fully features the power transmission from the engine to the rear wheel.
✓ Engine (OHV Knucklehead)
✓ 4-speed transmission
✓ Primary chain case
✓ Kickstarter
✓ Piping and wiring
Introduced in 1936, the Knucklehead was Harley-Davidson's first production OHV V-twin. This Full Drive Edition precisely recreates not just the engine but the entire drivetrain, including the 4-speed transmission, primary chain case and clutch.
🛠 About this piece
Hand-finished by one craftsman
Sanded, primed and painted entirely by hand, one piece at a time.
5–8 layers of paint
Built up from primer to final coat to capture a real metal finish.
Ready to display, no assembly
Cast in a durable custom resin. Includes a display stand — ready to display on arrival.
▶ Watch the build come together in the video at the bottom of this page.
✨ Recommended for
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Fans of vintage American motorcycles
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Anyone interested in engine construction and history
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Those looking for a serious interior piece for a garage or office
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Anyone shopping for a gift for a motorcycle lover
📐 Product Specifications
| Scale | 1/6 |
| Size | Approx. 12.5cm (H) x 12.5cm (W) x 9cm (D) |
| Displacement (actual engine) | 61ci (999cc) / 74ci (1,200cc) |
| Material | Custom-blended photo-curing resin (UV-curable) |
| Finish | Multi-layer paint + hand-painted aging |
| Made in | Osaka, Japan |
| Includes | Display stand |
Made with care
One-Of-A-Kind
Premium materials
Good Reviews