Premium Thermostat for Volvo Penta 31, 41, 42, 43, 44, and 300 Series Diesel Engines This high-quality premium thermostat is specifically designed for Volvo Penta 31, 41, 42, 43, 44, and 300 series diesel engines. With an opening temperature of 81°C, it ensures optimal operating temperature and reliable performance. Fits engines with a breather hole in the thermostat housing Compatible Volvo Penta models: AD Series: AD31A, AD31B, AD31D, AD31L-A, AD31P-A, AD31XD AD41A, AD41B, AD41D, AD41L-A, AD41P-A AQAD and D Series: AQAD31A, AQAD41A, D41A, D41B, D41D, D41L-A KAD and KAMD Series: KAD300-A, KAD32P-A, KAD42A, KAD42B, KAD42P-A, KAD43P-A KAD44P-B, KAD44P-C, KAMD300-A, KAMD42A, KAMD42B KAMD42P-A, KAMD43P-A, KAMD44P-A, KAMD44P-B, KAMD44P-C MD, TAMD, and TMD Series: MD31A, TAMD31A, TAMD31B, TAMD31D, TAMD31L-A, TAMD31M-A TAMD31P-A, TAMD31S-A, TAMD41A, TAMD41B, TAMD41D TAMD41H-A, TAMD41H-B, TAMD41L-A, TAMD41P-A, TAMD42B TAMD42WJ-A, TD70G, TMD31A, TMD31B, TMD31D, TMD31L-A TMD41A, TMD41B, TMD41D, TMD41L-A Specifications: Opening temperature: 81°C Fits engines with a breather hole in the thermostat housing Premium quality – Made in France