You are right. But I greatly doubt very many of those trucks had made it to USSR in January 42.
Sorry, I was just speaking in general terms, not specifically about the Battle of Moscow. I think the Murmansk Run started in Oct. '41, so your assertion is probably accurate. However, by the time of Kursk some of the following had certainly arrived:
"In total, the US deliveries through Lend-Lease amounted to $11 billion in materials: over 400,000 jeeps and trucks; 12,000 armored vehicles (including 7,000 tanks); 11,400 aircraft and 1.75 million tons of food."