maintenance and repair jobs. Replace depleted spark plugs with a durable spark plug wrench, spark plug socket set or boot pliers. Compress and replace valve springs on an overhead valve engine with a large valve spring compressor. Use a fan clutch service kit when repairing or replacing a water pump, timing chain or fan clutch. Install a throttle cable, prevent engine seize during initial rebuild, replace damaged spark plug threads and so much more. Shop this wide range of engine specialty tools from Grainger today!