631-130086 Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM PULLING TRUCK Verify compatibility using engine serial

Verify compatibility using engine serial number or Volvo Penta EPC before purchase

Compatible Axle Shaft

Function: Vibration and impact dampening

Confirm compatibility using your OEM parts manual or service documentation

631-130086 Mack Alternator Relay | Nartron 1300-8-6 (1301) | New Genuine OEM PULLING TRUCK Verify compatibility using engine serial631 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