Crankshaft Seal Kit

Find A Replacement Engine Crankshaft Seal Kit

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An engine crankshaft seal kit, also called a crankshaft seal kit, seals the front or rear of the crankshaft to prevent oil from leaking around the crankshaft or escaping the crankcase. Crankshaft seal kits can include the rear main seal, which prevents oil from leaking around the back of the crankshaft during operation, and a front seal or timing cover seal which reduces the risk of oil leaking around the harmonic balancer or damper pulley at the front of the crankshaft and timing cover. These seals help maintain optimal oil levels and condition by preventing leaks and contamination, and are often made of rubber or silicone and metal. Engine crankshaft seals are engineered to withstand the rigors of engine operation, including temperature fluctuations and rotational forces, but can suffer damage over time or due to improper installation or disuse. For example, engines that are not started for long periods of time may allow the seal elements to dry out or become brittle, which can weaken the seal and allow for damage and oil leaks to occur.

Symptoms Of A Bad Engine Crankshaft Seals

Engine crankshaft seals can fail for several reasons, including age, general wear and tear from engine heat, contaminants, vibrations, constant crankshaft rotation, and improper installation. Signs that you may need to replace your vehicle's engine crankshaft seals include a clutch that slips, as well as splattered or leaking oil on the front crankshaft pulley, clutch, or other engine components. A starter that is damaged or not working its best may also be contaminated with oil from a failing rear main seal. If the front crankshaft seal is leaking, oil will come in contact with the crankshaft pulley, and can be thrown onto surrounding components including the alternator, power steering pump, belts, and more. Ignoring a bad crankshaft seal can cause poor performance, continued oil leaks, or worse, extensive damage to a car's internal engine components that will require replacement. Regular maintenance, proper installation, the use of high-quality seals, and addressing any underlying issues promptly can help extend the life of engine crankshaft seals and reduce the likelihood of failure. O'Reilly Auto Parts carries the crankshaft seal kit for your vehicle to help prevent engine oil leaks, maintain proper lubrication, and extend the lifespan of the engine. If you need advice, check out our How-To Hub for informative articles and videos, or find a professional repair shop near you to start your next repair with confidence.