NICHE Top End Gasket Kit For Honda Rincon 650 TRX650FA (2003-2005) – 12191-HN8-000, 12251-HN8-003

If you’re rebuilding the top end on a Honda Rincon 650 from 2003 to 2005, you’re gonna need this gasket kit.

It’s from NICHE, and it’s got everything you need to button up that engine the right way.

This is a brand new kit, still sealed.

Includes the head gasket and base gasket—both essential for a fresh rebuild.

The manufacturer part number is 519-KGS2279K, and it crosses with OEM numbers 12191-HN8-000 and 12251-HN8-003.

Also supersedes 12315-HN8-000 and 19305-KV3-010.

Fits the TRX650FA ATV and UTV models.

It’s gray in color, made for the Rincon 650 specifically.

Oh, and California Prop 65 warning applies—because, you know, chemicals.

Comes with a 2-year warranty, so you’re covered.