Rebuilding your Honda small engine? This valve spring retainer set is designed for Honda GX340 and GX390 engines (11HP and 13HP models). The kit includes both intake and exhaust retainers, replacing original part numbers like 14721-ZE3-000 and 14711-ZE3-000. Made from durable iron, these retainers keep valve springs securely in place during engine operation. Brand new from Haishine, with a 1-year warranty. Whether you're doing a top-end overhaul, fixing a valve issue, or just doing routine maintenance, this set ensures proper valve timing and compression. Installation requires mechanical skill—make sure to follow torque specs. Perfect for lawn mowers, generators, pressure washers, or other equipment powered by these Honda engines. Don't let worn retainers cause engine damage. Keep your small engine running strong with these quality replacement parts. Order now and tackle that repair with confidence!