111 products

Gaskets & Seals

Shop Gaskets & Seals from Hilltop Diesel Performance. Browse performance, replacement, service and supporting parts, and verify exact year, engine and vehicle fitment before ordering.

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Cummins

Cummins Rocker Box Gasket - 2003-2018 Dodge/Ram 5.9L/6.7L Cummins

Cometic StreetPro Bottom End Gasket Kit - 2003-2007 Ford 6.0L Powerstroke

Suncoast 68RFE Transmission Gasket & Seal Kit - 2008-2018 Ram 6.7L Cummins

MAHLE Valve Cover Gasket Set - 2017-2023 GM L5P Duramax

GB Remanufacturing Valve Cover Gasket Kit - 2001-2004 GM LB7 Duramax

DTech Valve Cover Gasket - 2004.5-2010 GM Duramax

Exergy Injector Seal Kit - O-Ring & Copper Gasket - 2019-2024 Ram 6.7L Cummins

Dorman Valve Cover Gasket Kit - 1999-2003 Ford 7.3L Powerstroke

Bostech Fuel Injector Seal Kit - 2007.5-2018 Ram 6.7L Cummins

Merchant Automotive Injector Fuel Return Line Seal 8-Pack - 2011-2016 GM LML Duramax

MAHLE Engine Gasket Kit - 1994-2003 Ford 7.3L Powerstroke

Alliant Power Injector Fuel Return Line Seal Kit - 2017-2026 GM L5P Duramax

Merchant Automotive Injector Seal & Return Line Kit - 2001-2004 GM LB7 Duramax

Bostech Injector Seal & Return Line Kit - 2001-2004 GM LB7 Duramax

Alliant Power Head Gasket Kit - 2008-2010 Ford 6.4L Powerstroke

Alliant Power Head Gasket Kit - 2006-2007 Ford 6.0L Powerstroke / 2006-2010 E-Series

MAHLE Engine Gasket Kit - Standard Thickness - 1989-1998 Dodge 5.9L Cummins

Garrett Turbo Pedestal Install/Seal Kit - 1999.5-2003 Ford 7.3L Powerstroke

Dorman Fuel Injector O-Ring Kit - 2011-2019 Ford 6.7L Powerstroke

Dorman Fuel Injector O-Ring Kit - 1994-2003 Ford 7.3L Powerstroke

Dorman Fuel Injector O-Ring Kit - 2003-2007 Ford 6.0L Powerstroke

MAHLE Complete Engine Gasket Kit - 2001-2004 GM LB7 Duramax

MAHLE Head Gasket - 1994-2003 Ford 7.3L Powerstroke

MAHLE Head Gasket Set - 2003-2007 Dodge 5.9L Cummins

$223.95$215.99

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Diesel parts guide

Shopping Gaskets & Seals

Hilltop Diesel Performance organizes parts around real truck fitment so you can move from platform to the component you need without digging through an unrelated catalog. start with your exact year and engine, then verify configuration-specific notes on the product page before ordering.

Common upgrade and service paths include fuel delivery, injectors, turbochargers, intake and charge-air parts, exhaust, cooling, transmission components, filtration, sensors, gaskets, hardware and supporting installation parts.

Fuel systems Injectors Turbochargers Intakes Exhaust Cooling Transmission Get fitment help