Overview Reviews Similar Products Product Description BL-40 / 40 TC Main relay board OEM Code 34-5023B&D Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view BL-45 Relay circuit board Discontinued $180.00 $144.95 Quick view *DIAGNOSTIC KIT, PWA CCC/BL-40 $69.54 Add to Cart Quick view Replacement kit (BL-40 / 40TC Universal) Was 34-5023A $419.94 $329.95