Description
Sierra Marine Circulating Water Pump (all 8.1L big block GM engines with composite timing cover)
Manufacturer’s Part Number: 18-3573
Replaces Mercruiser OEM Part Number(s):
- 883925
- 46-8M0113736
Item Condition: New, old stock inventory part. The original box, or packaging many show signs of shelf life. NOS parts are sold in new, uninstalled condition. Part may be removed from packaging for picture details.
If you have any questions or need motor application assistance please contact us. To better assist you, please have your motor’s make/model, horsepower, and year or serial number info readily available.