Left Side UL Engine Case 1937 / 1948 UL

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Side valve replacement left side engine case features a blank number boss. This case has the same oil passage for the outside sprocket shaft bearing as the original case. NOTE: Lef t side case must be fitted to existing OE right side case. Cylinder base surfaces and motor mount surfaces must be milled to match before assembly. *NOTE: Requires hole to be drilled in the left case. Cast in the bushing after the case race has been pressed in. Install the race and then drill the hole. *NOTE: Left side cases accept standard case race.FITMENT 1937 / 1948 UL TECH NOTESSuggested to use with #10-0208 Sprocket Left Side Case Race Standard.ACCESSORY ITEMS10-253510-095310-020810-1942 Show more