Cometic GM LMM/LLY Duramax Top End Gasket Kit - 4.130in Bore - .047in MLX Cylinder Head Gasket

Any products listed will have a warranty provided by the manufacturer only. Stealth Diesel is not liable for any warranty. We can assist in warranty claims but we do not provide warranty on items we dont manufacturer. Most products have a 1 year warranty. For more information on warranty, reach out to us or the manufacturer for specific warranty details.

We recommend reaching out directly to the manufacturer, but we are availble to assist with any issues or concerns for troubleshooting.

Free ground shipping will be UPS ground, typically 5-7 business days or sooner. Expidited shipping is available on in stock products only.

Most items are returnable unopened within 30 days of purchase. A stocking fee of 20% will be deducted for all returns. Items that are non-refundable are special order, custom made, powder coated, electrical or oversize items. Return shipping is at the expense of the buyer.