Reinz Engine Rear Main Seal Cover

Reinz Engine Rear Main Seal Covers: German Engineering Where It Counts Most

The rear main seal cover is one of the most consequential — and most overlooked — components in engine sealing. Positioned at the very back of the crankshaft, it houses and protects the rear main seal, preventing oil from escaping the crankcase and contaminating the clutch or transmission bell housing. A compromised seal cover can mean persistent oil leaks, fouled seals, and expensive downstream damage. When you're replacing one, the quality of the part matters enormously — and that's exactly where Reinz has built its century-long reputation.

Why Reinz for Engine Rear Main Seal Covers?

Engine rear main seal covers demand tight dimensional tolerances and materials that resist heat cycling, oil saturation, and long-term mechanical stress. Reinz — operating under the Victor Reinz® brand as a subsidiary of Dana Incorporated — brings more than a century of sealing expertise to every part it manufactures. Now celebrating 116 years of providing trusted sealing solutions, Victor Reinz offers exclusive gasket sets that are engineered by experts. That same engineering discipline extends directly to rear main seal covers, where precise fitment and durable construction are non-negotiable.

Reinz uses advanced materials such as aramid fibers, metal reinforcements, and high-temperature-resistant silicone, and the resulting components maintain tight sealing even under high mileage and extreme operating conditions. For a rear main seal cover — which is subjected to constant crankshaft rotation, heat, and pressurized oil — this level of material science is what separates a part that lasts from one that fails prematurely.

As an original-equipment manufacturer and replacement part supplier, Dana delivers innovative sealing technologies of the highest quality under the Victor Reinz® brand, and all spare parts in the comprehensive product range meet the high standards of OEM quality. This means when you install a Reinz rear main seal cover, you're getting the same specification the vehicle manufacturer relied on — not an approximation of it.

OE Pedigree Translated to the Aftermarket

Nearly all the familiar brands and models of automobile manufacturers worldwide are equipped with the professional sealing solutions from Dana in the areas of motors and exhaust. This deep OE relationship means Reinz rear main seal covers are developed with first-hand knowledge of the engines they serve — including precise housing geometries, material compatibility with factory sealants, and torque specifications that ensure a leak-free installation.

Victor Reinz was the first to develop the multi-layer steel (MLS) cylinder head gasket, now an industry standard — a milestone that reflects the brand's history of pioneering sealing innovations that the rest of the industry eventually follows. That innovative mindset carries through to every sealing component in the Reinz catalog, including rear main seal covers engineered to restore factory-level protection against oil leaks.

Confidence in Every Seal

Victor Reinz materials' comparatively high compressibility results in good conformity to rough or uneven sealing surfaces, providing a considerable improvement in micro and macro sealing irregularities in the sealed joint. For technicians and DIY enthusiasts working on older engines where mating surfaces may have minor wear, this conformability characteristic is a meaningful real-world advantage. Browse the full Reinz brand catalog or explore all Engine Rear Main Seal Cover options to find the right part for your application.