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ProMaxx Performance CHR618N
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ProMaxx Performance Cylinder Head for Cummins Diesel 5.9L 6BT 12V Assembled


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ProMaxx Performance Cylinder Head for Cummins Diesel 5.9L 6BT 12V Assembled $554.99
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3 left in stock
Cylinder Head
  • Fits Cummins Diesel 5.9L 6BT 12-Valve
  • 1989-1998 Dodge Pickup
  • Assembled
  • Sold Individually
  • ProMaxx Performance CHR618N Details

    1989-1998 5.9L 12-Valve 6BT


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    Brand New Replacement Diesel Cylinder Heads

    ProMaxx Performance has the answer for the epidemic of cracked cylinder heads for Cummins 4BT, 6BT, 5.9L, and 6.7 engines. Developed and designed after an OE casting for direct bolt-on replacement, ProMaxx improved on casting strength and thickness in all the crack-prone areas for durability. ProMaxx diesel heads for Cummins are available as a fully machined bare casting or fully assembled.


    • New Castings Are Thicker Than OEM
    • Improved Casting In ''Problem Areas''
    • Assembled Head Features New Components: Springs, Valves, Retainers, Locks, Etc.
    • Assembled Heads Come Ready To Bolt On

    CHR618N is rated 4.5 out of 5 by 4.
    Rated 5 out of 5 by from Well Built Head Bought this after and exhausting search of other replacement heads. This worked perfect for my mild build (350hp est) cummins after I found several cracks and a bad intake valve. Installed on my 90 Non-Ic engine so I had to upgrade injectors but this thing runs better than it ever did. Casting and finish were excellent and came with 60lb springs on the exhaust already.
    Date published: 2018-08-15
    Rated 5 out of 5 by from Excellent replacement head I purchased for a high horsepower marine Cummins. Fit is perfect. Installation simple. 40 hours on motor so far, operation is perfect. I’m very pleased and will purchase second unit for other motor.
    Date published: 2018-07-05
    Rated 4 out of 5 by from Awesome for price Bought it and the next week I put it on. Everything seemed to fit awesome. Am really impressed with the casting and as the other gentleman said I was to leary of the price but for a mild build it is perfect for anyone. The only thing I wasn't impressed with was i opened the box and there was alot of wood shavings from the box it was shipped in but other than that good product
    Date published: 2018-05-21
    Rated 4 out of 5 by from Just as described Purchased head leery of price and quality. Gave it straight out of the box to my machine shop to have it all checked. Everything checked out ok. Would recommend for budget minded builds, valves not the best quality. Hopefully it hold up.
    Date published: 2018-02-25
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    • clientName_jegs

    Do these replacement heads come with top hat style valve seals or the push on stlye? Reason for asking is the push on stlye like to ride up valve stem where the top hats are held in place by the valve springs.

    Asked by: 010i020e
    These heads will have the hat style valve stem seals.
    Answered by: Rusty B
    Date published: 2019-02-15
    • y_2019, m_10, d_20, h_24CST
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    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.