Honda H5518, H4518H, & GX640 CDI Unit

We offer genuine Honda CDI modules for a variety of Honda equipment, including H5518 subcompact tractors, H4518H lawn tractors, and GX640 model power equipment engines. The Honda part number for this CDI unit is 30580-758-801, and it serves as a direct OEM replacement for all the models listed below. This part typically ships within 4 business days.

If you are unsure of your exact model or type, please contact us with your complete serial number before purchasing. We’ll gladly help verify the correct part for your equipment.

Stock Applications:

• GX640 Types: SD1, SD1/A, SD2, SD2/A, SD3, SD4, SD4/A (all serial numbers)
• H4518H Types: HSA/A, HSA/B, HSA/C, HSA/D, HSAC/A, HSAC/B (all serial numbers)
• H5518 Types: AC2/A, AC2/B, AC4/A, AC4/B, NAC2/A, NAC2/B, NAC4/A, NAC4/B, A2/A, A2/B, A2/C, A2/D, A4/A, A4/B, A4/C, A4/D, NA2/A, NA2/B, NA2/C, NA2/D, NA4/A, NA4/B, NA4/C, NA4/D (all serial numbers)