This is an authentic OEM Honda 400cc parallel-twin engine cylinder barrel block, also known as a cylinder jug. Built for air-cooled Honda metric twin engines, it features lightweight cast-aluminum cooling fins with durable cast-iron inner sleeve bores for heat control, compression support, and long service life. Specifications & Technical Details Manufacturer: Honda Motor Company OEM Part Number: 12100-413-020 Interchange Numbers: 12100-413-010, 12100-413-405, 12100-413-730 Casting Mark: 395cm³ Material: Aluminum outer fin body with cast-iron cylinder sleeves Engine Type: 400cc OHC 3-valve parallel twin Fitment & Vehicle Compatibility Honda CB400 Series 1978–1979 Honda CB400T Type I Hawk 1978–1979 Honda CB400T Type II Hawk 1980–1981 Honda CB400T Hawk 1978–1981 Honda CB400A Hawk Hondamatic Honda CM400 Series 1979–1981 Honda CM400T 1981 Honda CM400C 1979–1981 Honda CM400A Hondamatic 1980–1981 Honda CM400E
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used degreaser
Worldwide shipping available
Express shipping available at checkout
Estimated delivery: 2-5 business days
All items are carefully packaged for safe transit
Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
Contact support for return authorization
No reviews yet
Be the first to review this product!
Ask our experts about this product. We typically respond within 24 hours.
Be the first to ask about this product!
Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
View
$54.75
$59.75
$69.75
$37.75
