![Jeep 4.2L forged 5140 steel I-Beam Connecting Rods](https://www.epartrade.com/uploads/products/cc53e840-640a-11e8-be4b-560001755c9c/2019/04/SIR6123JP-1.png)
![Jeep 4.2L forged 5140 steel I-Beam Connecting Rods](https://www.epartrade.com/uploads/products/cc53e840-640a-11e8-be4b-560001755c9c/2019/04/SIR6123JP1-1.png)
![Jeep 4.2L forged 5140 steel I-Beam Connecting Rods](https://www.epartrade.com/uploads/products/cc53e840-640a-11e8-be4b-560001755c9c/2019/04/SIR6123JP1-2.png)
![Jeep 4.2L forged 5140 steel I-Beam Connecting Rods](https://www.epartrade.com/uploads/products/cc53e840-640a-11e8-be4b-560001755c9c/2019/04/SIR6123JP1-3.png)
Jeep 4.2L forged 5140 steel I-Beam Connecting Rods
Eagle now offers our popular forged 5140 steel "SIR" I-Beam rods for Jeep 4.2L straight 6. No need to worry with reworking old rods, you can now install new, stronger, weight-matched rods that feature ARP 8740 bolts. Small end is designed for use with press-fit piston pins so O.E. replacement pistons can be used. Part number is SIR6123JP. Available now through Eagle!