MAHLE Original Chevy LS Rear Main Seal Set

Crankshaft seals are the lip seals at the front and rear of the crankshaft that prevent oil from leaking past the rotating shaft through the engine block and timing cover. A weeping or failed crank seal is one of the most common causes of oil leaks on high-mileage engines, and replacement is straightforward once the harmonic balancer or flywheel is removed to access the seal bore.Popular UpgradesFront crankshaft seals for LS, small-block Chevy, small-block Ford, and Hemi applications are the most common replacement items during timing chain service or engine front cover work. Rear main seals in both one-piece and two-piece designs cover the widest range of domestic V8 platforms and should be replaced any time the transmission is removed for clutch or torque converter service. Performance multi-lip seals with PTFE coating provide better oil retention in high-RPM and high-oil-pressure applications compared to standard rubber lip seals.How do I replace a crankshaft seal without pulling...

Crankshafts & Components for LS, Gen III Hemi, Coyote, 2JZ, RB, EJ, SR20, Miata, Ford EcoBoost, and Power Stroke applications are stocked at Black Ops Auto Works. Shop forged crankshafts, harmonic balancers, crank triggers, pulley rings, seals, timing references, and bottom end hardware for proven street, drag, road course, and high horsepower engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 208 crankshaft and damper SKUs across the fitments and build levels enthusiasts actually use. What Crankshafts & Components Cover This collection brings together forged and billet crankshafts, viscous and elastomer harmonic dampers, crank pulley components, trigger wheels, pins, seals, and installation hardware. It covers core rotating assembly work as well as direct-fit damper upgrades for modern performance engines. Forged crankshafts for serious builds Stroke, rod jo...

Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...

Shop Victor Reinz engine, cylinder-head, intake, exhaust, valve-cover, and service sealing products by exact manufacturer part number and verified application.Victor Reinz Sealing Products Engine, cylinder-head, intake, exhaust, and valve-cover gaskets Crankshaft seals, O-rings, gasket sets, and service hardware Application-specific replacement components for domestic and import vehicles Choosing the Correct PartMatch the exact manufacturer part number, year, make, model, engine, sealing location, dimensions, and included components. Year, make, and model filtering is a starting point and does not replace engine-level application verification.About Victor ReinzVictor Reinz develops OE-quality sealing products for engine, exhaust, intake, fuel, oil, and related vehicle service applications.Related Collections Victor Reinz Engine gaskets Exhaust gaskets Intake components Frequently Asked QuestionsHow do I confirm a Victor Reinz part fits?Match the exact part number, year, make, model,...