12912-18A00 Exhaust Valve for Suzuki Quad Sport 230 1985-1988 LT230S

Exhaust Valve for Suzuki

This exhaust valve for Suzuki replaces OEM part number 12912-18A00 and controls exhaust gas flow out of the combustion chamber on Quad Sport 230 machines.

Overview

The exhaust valve for Suzuki is a direct-fit replacement for the LT230S, built to seal combustion pressure and release exhaust gases at the correct point in the engine cycle. This exhaust valve suits riders rebuilding a top end who need a dependable valve that matches the original 12912-18A00 specification.

Built For Performance

• Fits the LT230S engine as a replacement for OEM 12912-18A00
• Machined valve face for a clean seal against the valve seat
• Heat-resistant alloy construction suited to exhaust-side temperatures
• Correct stem diameter for a proper fit in the original valve guide
• Balanced profile supports consistent valve timing and compression

Fits These Machines

• for Suzuki Quad Sport 230 LT230S 1985
• for Suzuki Quad Sport 230 LT230S 1986
• for Suzuki Quad Sport 230 LT230S 1987
• for Suzuki Quad Sport 230 LT230S 1988

On-The-Job Use

• Top-end rebuilds on Quad Sport 230 engines
• Restoring compression on a high-hour ATV engine
• Replacing a burned or bent exhaust valve
• Cylinder head service and valve lapping

Specs At A Glance

Good To Know

Q: Is this an original Suzuki valve? A: No, it is an aftermarket exhaust valve for Suzuki that cross-references OEM 12912-18A00. It is designed to fit the LT230S cylinder head the same way as the stock part.

Q: Should I replace both valves at once? A: Replacing intake and exhaust valves together is common practice when the head is apart, since wear usually affects the pair. Confirm the valve size and stem length against your head before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.