Item Specifics
Condition: For parts or not working
Brand: Keihin / Honda
Manufacturer Model Stamp: PD 41A
Type: 4-Cylinder Carburetor Assembly (Bank of 4)
Fuel Type: Gasoline
Number of Carburetors: 4
Fitment: 1977–1978 Honda CB550 / CB550K
Country/Region of Manufacture: Japan
Item Description
OEM Vintage Honda CB550 / CB550K Keihin PD 41A 4-Cylinder Carburetor Assembly
Up for sale is an original Japanese-made
Keihin 4-cylinder mechanical slide carburetor rack removed from a late-1970s Honda 550 Four. The main body casting is explicitly stamped PD 41A above the float bowl casing.
Condition & Notes:
Condition: Sold strictly AS-IS as a core for parts, restoration, or full rebuild.
Body Stamp: PD 41A (OEM factory specification for 1977–1978 Honda CB550K models).
Cosmetics: Shows age-appropriate oxidation, surface patina, dirt, and heavy buildup/staining from long-term storage.
Mechanics: Untested. Linkages, slides, and choke valves should be expected to be dirty/stuck and will require a complete teardown, ultrasonic cleaning, and fresh rebuild kits prior to service.
Completeness: Includes the main cast mounting rack bracket, choke linkages, throttle mechanisms, and float bowl assemblies as pictured.
Fitment: Direct OEM fit for 1977–1978 Honda CB550 / CB550K models (and adaptable to other classic SOHC Honda Fours—please verify your application before buying).
What's Included:
Complete 4-cylinder Keihin PD 41A carburetor assembly as shown.
Fast handling and secure packaging for safe transit.
