Description
Sierra 18-3670 160 Degree Thermostat Kit for OMC & VolvoFits:
- 2.5L & 3.0L OMC and Volvo Penta Marine engines (1982-88)
Kit Includes:
- (1) 18-3558 Thermostat
- (1) 18-2858 Thermostat Housing Cover Gasket
- (1) 18-0929 Thermostat Gasket
Replaces:
- Volvo – 3853799 (Thermostat)
- Volvo – 3852127 (Cover Gasket)
- Volvo – 3852120 (Thermostat Gasket)
- OMC – 982554 (Thermostat)
- OMC – 314809 (Cover Gasket)
- OMC – 313416 (Thermostat Gasket)
California Residents: WARNINGCancer and Reproductive Harm – P65Warnings.ca.gov


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