One Design Parts

Replacement Pintle Pin and Spring Kit for the ISCA sailboat rudder assembly. This kit includes the pintle pin, compression spring, washer, and cotter pin.  Complete Pintle Pin and Spring...

The pintle compression spring is used on the ISCA sailboat pintle, allowing the pintle to compress when putting on or removing the rudder assembly. Found on all new ISCA sailboat rudders from Zim...

Stainless steel pintle pin for the ISCA sailboat. This pin is used to connect the ISCA rudder assembly to the gudgeon on the transom of the boat. This is the pin only (does not include washer,...

Recreational sailors rejoice! The ISCA Mainsheet Swivel Cleat is a popular upgrade for the casual ISCA sailor, with a 360-degree rotating swivel base with integrated cleat. This allows easy cleating...

ISCA traveler block.   This is an official International Sunfish Class Association™ (ISCA®) class approved fitting. Zim Sailing is the exclusive manufacturer and distributor of the ISCA® Boat and...

Fiberglass daggerboard for the ISCA sailboat. This is the standard for all racing sailors.  ISCA Daggerboard Fiberglass Construction Zim Sailing Part # 48107   This is an official International...

These 12 inch die-cut sail letters have a sticky adhesive on one side that will bind them to the sail. Once applied and set, the numbers will be able to withstand the elements of sailing without...

Official class approved lower racing boom for the ISCA sailboat. This is our 'Race' spec boom and includes Harken Carbo blocks in place of the traditional Racelite blocks for higher performance. Also...

Official class approved lower boom for the ISCA sailboat. Designed for the club or recreational sailor, this lower boom includes end caps and standard Racelite mainsheet blocks. ISCA Lower Boom...

Official class approved upper boom for the ISCA sailboat. This upper boom includes end caps and is standard on all Zim ISCA Race and Club sailboats. ISCA Lower Boom Includes end caps Aluminum...

Rudder Cheek for the ISCA sailboat. This is an updated design found exclusively at Zim Sailing, offering stronger, more durable plastic for long life. Includes pintle pin and spring.  Rudder...

Standard class legal mast for the ISCA sailboat. Includes mast top cap and bottom cap.  Freight Shipping - This is an oversized item that requires freight shipping or in store pickup from our...