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External Engine Parts

Grid heater delete, radiator hoses, breathers, and more! From Cummins, Glacier Diesel, BD Power, Banks, and Mopar.

2003-2007 Dodge Cummins external engine upgraded and replacement parts.

Fits 2003-2007 Dodge 5.9L Commonrail Cummins
By: Hellmann Performance

Running lots of boost? Oil leaks from the crankcase breather system on your Common Rail Cummins engine? Tired of your engine bay looking plain? Enter the Hellmann Performance Billet Valve Cover – solve all of these problems at once. This valve cover was originally introduced to solve issues stemming from high boost applications and a very restrictive crankcase breather system. The OEM crankcase breather seals are prone to failure, and spread oil all over the engine bay. The Hellmann Performance Valve Cover System uses dual ¾ inch crankcase pressure outlet lines (rear of valve cover) to flow into a custom fabricated oil catch can. The bottom of the catch can is designed to return all oil back into the oil pan by utilizing the factory oil return location. 

The Hellmann Performance Billet Valve Cover System includes the Valve Cover, constructed of aircraft grade T6 billet aluminum, the custom fabricated catch can, crankcase breather lines, hose extension (to tie into factory oil return line), clamps, fittings and all mounting hardware. The Hellmann Performance Billet Valve Cover Systems are designed for 2003-Present Dodge 5.9L / 6.7L Cummins Turbo Diesel engines. 

03-04.5 Trucks Have the "Wavy" valve cover like pictured.
If your 04.5-07 Truck has the straight edge valve cover, select the 05+ option below please.

Includes billet oil fill cap!

Substantially more crankcase ventilation for high horsepower applications.

Please allow 5-7 business days before shipment!

Cummins Upper Heater Hose 4939438
  Product discontinued
From Cummins Cummins

Cummins Upper Heater Hose - 3.25" long Cummins part number 4939438.

Our high capacity spin on filter mount and filters combination allows us to get maximum filtration while maintaining higher pressures, higher volume, and...


The aluminum oil cap is designed to fit all OEM valve covers for Cummins 24 valve engines 98.5+, as well as the Hellmann Performance Billet Valve Cover. It...


From Cummins Cummins

This is the block heater element only, if you also need the cord, the cord part number is 3923050.

 Number 2 in picture only.

Cummins Part Number: 3975628


From Cummins Cummins

This fits 1998.5-2007 Dodge 5.9L 24 Valve Cummins diesel trucks that have the grid heater AS A SEPARATE UNIT . Some Dodge trucks have the grid heaters...

From Cummins Cummins

94-12 Dodge 5.9L/6.7 Cummins Stock Exhaust Manifold Turbo Stud Nuts (4) Nuts ONLY! Does NOT include studs. If you are looking for both, CLICK HERE ....


From Cummins Cummins

94-07 Dodge 5.9L Cummins Stock Exhaust Manifold Turbo Studs (4) Studs ONLY! Does NOT include nuts. If you are looking for both, CLICK HERE . Cummisn...


From Cummins Cummins

Cummins Part #: 3903834

Replacement starter bolts, takes 3 to replace all.



From Cummins Cummins

Attaches flywheel housing adapter plate to the back of the engine, sold individually, 8 required. This is NOT the bolt that attaches the transmission to...


From Cummins Cummins

Also referred to as an oil gauge adapter tube. This item presses into the oil pan rail on the block and the dip stick tube slides on top of it. ...

From Cummins Cummins

Commonly used on 03-2011 Dodge 5.9L & 6.7L trucks that upgrade to the center dump 3 piece exhaust manifolds. This drain tube is longer than stock to reach the turbo in the higher-mounted position.

Cummins: 3934084

Picture for representation only.