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Select your vehicle to see Rear Main Seals that fit
Rear Main Seals
The rear main seal sits at the back of the crankshaft, where the crank exits the engine block toward the transmission. Its job is to keep engine oil inside while the crank spins. When it hardens or wears, oil can leak from between the engine and transmission. Many people replace it during a clutch job, transmission swap or engine refresh, since that area is already open.
We currently have 2 rear main seals in stock, one from Cometic Gasket and one from Victor Reinz. They are the Cometic Rear Main Seal for 89-02 Nissan KA and RB engines, which has fitment data for the Nissan 240SX, and the MAHLE Original Chevy LS Rear Main Seal Set.
When choosing a rear main seal, keep these points in mind:
Match the seal to your exact engine code, not just the vehicle model.
Check whether you need a seal on its own or a set with related parts.
Inspect the crankshaft sealing surface for wear before fitting a new seal.
Follow the manufacturer's directions for seal orientation and lubrication.
To narrow things down, pick your vehicle to see what fits.
The rear main seal sits at the back of the crankshaft, where the crank exits the engine block toward the transmission. Its job is to keep engine oil inside while the crank spins. When it hardens or wears, oil can leak from between the engine and transmission. Many people replace it during a clutch job, transmission swap or engine refresh, since that area is already open.
We currently have 2 rear main seals in stock, one from Cometic Gasket and one from Victor Reinz. They are the Cometic Rear Main Seal for 89-02 Nissan KA and RB engines, which has fitment data for the Nissan 240SX, and the MAHLE Original Chevy LS Rear Main Seal Set.
When choosing a rear main seal, keep these points in mind:
Match the seal to your exact engine code, not just the vehicle model.
Check whether you need a seal on its own or a set with related parts.
Inspect the crankshaft sealing surface for wear before fitting a new seal.
Follow the manufacturer's directions for seal orientation and lubrication.
To narrow things down, pick your vehicle to see what fits.
