ENGPAR Sales Pvt. Ltd. Supplies Connecting Rod Bushes for Automobiles and Tractors. ENGPAR Sales Pvt. Ltd. Offers piston rings. Connecting Rod Bushes for Automobiles and Tractors is available in the lining composition of CuPb10 Sn10 Which has excellent shock and load carrying capacities even under the most difficult working conditions such as poor lubrication. Low carbon steel [grade SAE 1010] helps in smooth fitment of the bush into the connecting rod. These are manufactured using high quality raw materials.