Diesel

Thermalweld has developed a custom formula specifically for diesel engines that address the higher compression and lower operating temperatures inherent in diesel engines. Diesel engines require a particular sealant due to the higher compression and lower operating temperature compared to the gasoline engine. 

Thermalweld Head Gasket Sealer is widely known as the best head gasket sealer for diesel engines. The formula is a blend of materials such as, graphite and microfibers. The Thermalweld Head Gasket repair solution is guaranteed not to clog any passages or negatively affect the cooling system.

The diesel head gasket repair solution has repaired tractor trailers of all makes and models, dump trucks, concrete trucks, diesel pusher RV’s, farm tractors, harvesters, combines, forklifts, etc. If it is fueled by diesel the head gasket can be repaired with the Thermalweld liquid sealer. In addition, some work/passenger diesel engines are notorious for blowing head gaskets, they are GM 6.6 Duramax and the Ram Turbo Cummins diesel engines.

Due to the different coolant capacities, (3) three separate diesel repair packages are available. Small-capacity Diesel (10 gallons and under), Medium-capacity Diesel (10-20 gallons), and Large-capacity Diesel (20 gal and over).

Thermalweld guarantees it will permanently repair a blown diesel head gasket. If in the first 30 days Thermalweld fails to repair your diesel engine, send a request to technicalsupport@thermalweld.com for a full refund or call for a free re-treatment.

The repair process is different from the gasoline head gasket repair instructions.