631-130086 Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM PULLING TRUCK Application: Volvo heavy-duty truck cooling

Application: Volvo heavy-duty truck cooling and fan clutch systems

Application: Fits select Volvo Penta marine diesel systems

Compatible Axle Shaft

Chamber Type: Type 30/30

NOS parts may show shelf wear or packaging aging but remain unused and fully functional

631-130086 Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM PULLING TRUCK Application: Volvo heavy-duty truck cooling631 130086 Nartron Alternator Relay Switch Mack 1300 8 6 1301 New Genuine (NOS) New genuine Nartron alternator relay switch, part number 631 130086, also referenced as 1300 8 6 and 1301. OEM electrical relay designed to manage alternator field control and support proper charging circuit operation in compatible Mack truck electrical systems. Commonly used in select Mack truck charging and electrical system applications. New old stock (NOS) unused and