Wiseco W5389 0.010" Copper Cylinder Base Gasket for Yamaha FJ1100 / FJ1200

The Wiseco W5389 is a 0.010-inch copper cylinder base gasket designed for top-end rebuilds on the Yamaha FJ1100 and FJ1200. Sold individually, this precision-cut copper gasket provides a reliable, leak-free seal between the cylinder block and crankcase, making it an essential component during any engine rebuild or bore job.

Copper base gaskets are a preferred choice for high-performance and big-bore applications due to copper's excellent conformability and heat transfer properties. The 0.010" compressed thickness makes this gasket ideal for fine-tuning compression ratios when used alongside overbore pistons or during a standard top-end refresh.

Key Features:

• Material: Copper construction for superior sealing and heat resistance
• Compressed Thickness: 0.010 inches
• Gasket Type: Cylinder base gasket — seals between cylinder block and crankcase
• Quantity: Sold individually (single gasket)
• OEM+ Quality: Engineered to meet or exceed original equipment specifications
• Part Number: W5389

Wiseco is a trusted name in powersports engine components, with decades of experience supplying performance parts to racing and street riders worldwide. The W5389 base gasket is a straightforward, high-quality solution for completing a proper top-end rebuild on the Yamaha FJ1100 and FJ1200.