Collection:

5.9 Engine Parts

56 products
Maximize your engine air flow and take a look at the Glacier Diesel Power Air-Boss intake plenum!
Regular price $319.99
Sale price $319.99
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EGT's running too high? Can't use all of the fuel you have available? The Air-Boss VP plenum gives the largest bolt-on flow increase possible short of milling the cast plenum off the head and insta...
Regular price $88.99
Sale price $88.99
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The Pro-Flo is a solid, billet aluminum riser that replace the restrictive grid heater block on all 1998.5-2007 Cummins 5.9 powered Dodge Rams. When every last CFM of cold air counts the Pro-Flo le...
Regular price $82.99
Sale price $82.99
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This flange is machined for your 3.50" intercooler piping or inlet piping. This does NOT include any type of heater. CLICK HERE if you're wanting the whole grid heater assembly. NOTE:  *Does NOT S...
$79.95 Off
Regular price $1,320.00
Sale price $1,320.00
Regular price $1,399.95
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ARP has provided an extra measure of security in the form of extra-strong head studs manufactured from the firm's proprietary Custom Age 625+ material that has a minimum rating of 260,000 psi tensi...
Regular price $129.99
Sale price $129.99
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The Fleece Performance replacement thermostat housing with auxiliary port is a direct replacement part for model years 1998.5-2007 RAM with 5.9L Cummins and 2013-2018 RAM with 6.7L Cummins.  The ...
Regular price $558.99
Sale price $558.99
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Do you have a hard starting diesel? We've got the answer. The new Sure Start intake air pre-heater by Glacier Diesel Power. Whether it's a diesel engine swap, hard starting farm equipment, Humvee,...
Regular price $520.00
Sale price $520.00
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These ARP studs are rated at 220,000 psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. Manufactured from propriet...
Regular price $44.99
Sale price $44.99
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Replacement stainless steel stud kit for Air Boss VP intake plenums.INCLUDES 2 8mm x 100mm Stud 2 8mm x 180mm Stud
Regular price $359.00
Sale price $359.00
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Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. Thi...