BILLET RB Rear Main Seal Housing

Upgrade Your Engine with our RB Billet Rear Main.

Part ways with your old OEM cast plate and say goodbye to leaks and hello to unmatched durability!
Our RB Billet Rear Main, crafted from premium 7075 Billet Aluminium, paired with a Genuine Nissan Rear Main Seal, is the ultimate solution for every engine rebuild.
Engineered for precision and strength, this is hands-down the best choice to protect your engine from wear and tear. Don’t settle for less—every rebuild deserves the toughest, most reliable seal on the market.