One U.S. distributor, Tech International, recently issued a recall of 6 million of the Chinese-made valve stems, which have been tentatively linked to the fatal rollover crash of an SUV in Orlando last year. The valve stems were made for Dill Air Control Products of Oxford, N.C. by Shanghai Baolong Industries Co. in China.

Tire accessory distributor Tech International of Johnstown, Ohio, originally recalled model TR-413, which was manufactured for Dill Air Control Products of Oxford, N.C. by Topseal Shanghai Auto-Parts Co. Ltd. in China. The company said at that time the recall involved as many as six million valve stems.

But Tech International has now expanded the recall to include five additional models—TR-413CH, TR-414, TR-415, TR-418 and TR-423—manufactured between August 2006 and November 2006. Tech Int'l did not say how many of those additional models of valve stems it has distributed. Dill said earlier that it had shipped as many as 30 million of the TR-413 valve stems in the North American market.