Volvo Penta KAD Thermostat. Two required for all KAD engines.

Your thermostat is an intergral part of the cooling system and should be checked regularly for correct operation. Coolant should be changed, preferably with ready mixed, every 2 years and the the heat exchanger removed for cleaning every 5 years.

Volvo Penta Part No: 3831424 - Two required 

For Volvo Penta Diesel Engines: KAD42A, KAD42B, KAMD42A, KAMD42B TAMD122A, TAMD122C, TAMD122D, AD31A, AQAD31A, TAMD31A, TMD31A

KAD32, KAD32P, KAD32P-A,

AD41A, AQAD41A, AQD41A, D41A, TAMD41A, TMD41A, KAD300, KAMD300, KAD300-A, KAMD300-A, KAD43P, KAD43P-A, KAMD43P, KAMD43P-A, KAD44P, KAD44P-A, KAD44P-B, KAD44P-C, KAMD44EDC, KAMD44P, KAMD44P-B, KAMD44P-C

MD31A, MD31B, AD41B, AD41D, AD41L-A, AD41P, AD41P-A, AQAD41B

TAMD41B, TAMD41D, TAMD41M, TAMD41P, TAMD41P-A, TAMD41P-HD, TAMD42WJ-A, TMD41B, TMD41D , TMD41L-A, TMD41P-A, TAMD41H-A, TAMD41P-B, KAD42P, KAD42P-B, KAMD42P-A, AD31B, AD31D, AD31L-A, AD31P-A, AD31X-D, AQAD31B, TAMD31B, TAMD31D, TAMD31L-A, TAMD31P-A, TAMD31S, TMD31B, TMD31L-A, TAMD31M, TAMD31P-B, TMD31D, TAMD122P, TAMD122P-A, TAMD122P-B, TAMD122P-C