Product Description Sifton Steel Exhaust Valve For Harley U Models 1937-1948 Features: Exhaust Sold individually Replaces OEM 18082-37 Sifton Steel Exhaust Valve For Harley U Models 1937-1948 at RevZilla Browse all RevZilla deals $45.60 In Stock at RevZilla Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Sifton Size OS Condition New MPN 11-0611 Sifton