CASE-IH OPTUM / New Holland T7 engine wiring harness 5802406924 5802256677 Genuine Caseih OEM part. OEM part number: 5802406924 Brand: Caseih Condition: Brand new Specifications Engine Type: Diesel Part Type: harness Supplied by Power Parts Pro and shipped worldwide via DHL Express and FedEx. For fitment help, OEM cross-references, or a bulk quote, use the Request a Quote form.