The Piston Ring Kit OS 0.50 for Suzuki LT230/LT-F250 family is a complete oversized ring set designed to restore compression and curb oil consumption after a controlled bore. It covers the LT230E/GE (1985–1993), LT-F230 (1986–1987), LT4WD (1987–1996), LT-F250 (1988–2009), LT-Z250 (2004–2009), and LT-F4WD (1997–1998) platforms, letting you reclaim peak engine performance without replacing the entire piston assembly. When installed correctly, these rings seal the combustion chamber and control oil rundown, helping your Suzuki recover throttle response and power at both trail and worksite demands.

Designed for tough trail and farm use, this aftermarket replacement preserves Suzuki’s original ring geometry and seating experience while offering a cost-effective, readily available option when OEM shortages bite. The OS 0.50 specification brings a proven remedy for compression loss and increased oil burning, delivering reliable sealing and long-term durability in harsh operating conditions. It’s a practical, dependable choice for riders keeping LT230/LT-F250-based machines running strong where parts aren’t always on the shelf.

Comprehensive Vehicle Fitment

Source data indicates these models share the LT-series piston-ring geometry and OS 0.50 sizing, enabling a straightforward reconditioning approach for single-cylinder LT engines.

Product Specifications

Cross-reference notes: this OS 0.50 kit aligns with OEM references and several aftermarket cross-references noted in typical Suzuki catalogs.

OEM & Aftermarket Cross-Reference Information

Sources show consistent OEM and aftermarket cross-references to ensure parts lookup across catalogs for LT230/LT-F250 families.

What’s Included

This kit provides the essential piston rings required for one engine cylinder. It includes:

• Top compression ring(s)
• Second compression ring
• Oil control ring(s)

Note: Piston, wrist pin, circlips, and related gaskets/seals are not included unless specifically stated.

Data and composition are consistent with Suzuki OS:0.50 ring-set offerings and typical LT-series ring assemblies found in OEM catalogs.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility: Precisely matches the LT230/LT-F250 series piston-ring geometry for straightforward installation and proper seating.
• OEM Cross-Reference: Backed by multiple OEM cross-references (12140-19B10-050 and 12140-22A10-050) to simplify parts searches across catalogs.
• Premium Materials: Rings manufactured from high-grade alloy steel with carefully controlled surface finishes for durable sealing.
• Engineered for Longevity: OS 0.50 sizing restores ring seal after boring, helping regain compression and reduce oil consumption.
• All-in-One Kit: Includes top, second compression, and oil control rings to minimize service time and mix-ups.
• Reliability in Harsh Conditions: Built to endure trail and farm use where parts availability may be limited and maintenance intervals stretch.

Cross-reference and material quality data come from OEM catalogs and aftermarket supplier listings for LT230/LT-F250 family parts.

Installation Notes:

• Inspect the bore and verify it has been bored to the OS 0.50 spec before installing the rings. If not, the seal will be compromised and oil consumption may persist.
• Clean piston grooves thoroughly and remove all carbon deposits to ensure proper ring seating and end-gap alignment.
• Lubricate rings lightly with clean engine oil before placement to prevent pinning and scuffing during startup.
• Orient rings as specified by the service manual: keep end gaps staggered and oriented away from each other to minimize blow-by.
• Install the top ring first, followed by the second compression ring, then the oil control ring; verify each ring sits flat and true in its groove.
• Perform a proper break-in procedure after installation to seat the rings quickly and achieve reliable compression and oil control.

These steps reflect standard LT-series piston-ring installation practices and the OS:0.50 kit’s intended use.

Why Upgrade?

Running a worn piston-ring set on these LT-series engines allows compression to slip past the rings, increasing oil burn and reducing power, especially under load. This OS 0.50 replacement restores ring seal after boring, reviving compression and throttle response to keep your Suzuki LT230/LT-F250 running reliably in demanding conditions.