Application: Compatible With Caterpillar 3400, C15 and works on Cummins ISX 15 and QSX 15 with a 5.4" bore.

Package: Piston Ring Compressor Adapter (5299339) and Anti-Polish Ring Removal Snap Ring (5299447)on.

Replaces OEM number: 5299448, 5299447, 5299339

Quality: The piston ring compressor adapter & anti-polishing ring are manufactured by an ISO-certified manufacturer, made of strong cast steel, and meets or exceeds OEM requirements. 100% factory tested, and durable.

Warranty: 2-year limited warranty against any manufacturer's defects. For product quality problems, we unconditionally exchange or refund. If you have any difficulties and needs, you can contact us at any time. We will get back to you within 24 hours and we will be happy to serve you.