SKU:49-2562
The V-Twin 77703 Side Valve Breather Valve provides precise crankcase venting for Harley-Davidson WL engines from 1937 to 1946, helping maintain proper pressure and prevent oil leaks while supporting optimal engine operation.
Designed as an OEM cross-reference replacement, this valve is manufactured in Taiwan and cross-referenced to 25350-37 and 504-37 to match original specifications for a reliable, factory-fit install.
Whether restoring a vintage Harley or maintaining an existing engine, this breather valve provides proper crankcase venting to prevent pressure buildup and oil leaks, helping sustain engine longevity and performance.
Side valve breather valveThe V-Twin 77703 Side Valve Breather Valve is a high-quality replacement designed specifically for Harley Davidson WL models from 1937 to 1946. Crafted in Taiwan, this OEM cross-referenced part ensures a precise fit and reliable performance for vintage Harley engines. The breather valve plays a critical role in maintaining proper venting within the engine’s crankcase, helping to prevent pressure build-up and oil leaks while promoting optimal engine operation. Made from durable materials, it withstands the rigors of engine operation and provides long-lasting service. Installation instructions are available online to facilitate an easy and accurate replacement process. Whether restoring a vintage Harley or maintaining an existing engine, this breather valve offers a dependable solution that aligns with original specifications. Proper venting is essential for engine longevity and performance, and this part delivers exactly that for your Harley Davidson WL series motorcycle.
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