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Mack E7 Cylinder Head 1985-1991: OEM 732GB3452MX

MACK E7 CYLINDER HEAD 1985-1991: OEM 732GB3452MX

Shipping ICON

ORDERS PLACED BEFORE 3PM EST WILL SHIP SAME DAY

WARRANTY ICON

WARRANTY
1M MILES OR 1 YEAR

$2,895.00

CORE CHARGE:

$1,500.00
iCORE DISCLAIMER: The CORE charge is a 30 day hold and will not be processed as long as the CORE is returned within 30 days. If you do not have a CORE or fail to return the CORE within 30 days, the CORE charge hold amount will be processed at that time.

AVAILABILITY IN STOCK
OEM NUMBER732GB3452MX
PART TYPECylinder Head
BRANDTamerx Diesel Products
ENGINE MAKEMack
ENGINE TYPEE7
YEAR1985-1991
PART NUMBER732GB3452RM

PRODUCT DESCRIPTION

This is a Remanufactured Tamerx Cylinder Head, Tamerx part number 732GB3452RM ( OEM Part Number 732GB3452MX ). All parts are proudly remanufactured in the U.S.A. to the highest of OEM standards, and improvements are often applied to the original design in the remanufacturing process. This part is primarily made for a Mack E7, production years 1985-1991, and comes with a One Million Miles or One Year Warranty. For additional warranty info Click Here

OEM NUMBERS

Primary OEM732GB3452MX
Additional OEM732GB3452MX, 732GB4464M

ADDITIONAL DETAILS

CONDITIONRemanufactured
UPC / Barcode00840490537538
WEIGHT52.00 LBS

SHIPPING OPTIONS

Ship Weight : 52.00 LBS
UPS Ground, 2nd Day Air, Next Day Air

SHIPPING POLICY

Tamerx Diesel Products ships via UPS Ground. Next day air shipping can be arranged for a reasonable price of anywhere from $50.00 - $100.00 depending on the weight of the product and your location. We will do everything we can to make sure that you get the service you need. We understand how important it is to receive your order as quickly as possible.
In most cases Tamerx Diesel Products only needs one address, as long as your product is shipping to the same location as your billing information. In order to eliminate credit card fraud, your billing information must match the credit card you provide.

The terms, conditions, and details of our warranty vary from product to product. Specific warranty details can be found below.

Tamerx Diesel Products provides a replacement warranty on all of our parts. The duration and mileage limitations of the warranty vary by product and are specified on the product's detail page/item listing.

Please note that the warranty covers replacement of the part and the cost of shipping the replacement part to you only. It does not cover any shop, labor, towing, or any similar or related costs. This is not a "money back guarantee".

If you experience a problem with your part or it is not functioning properly, the correct warranty procedure is to call us at (510) 257-1777 (8:00 AM - 5:00 PM ET Monday through Friday). Be sure to have your order number and/or other relevant order information ready so we can easily locate your order and resolve your issue as quickly as possible. From that point, we will review with you any troubleshooting steps that may need to be taken and other areas or systems that can be checked to rule out external problems contributing to your part's issue. If a replacement is determined to be necessary, we will then arrange for your replacement part to ship out ASAP and issue any necessary return shipping labels and/or documents.

As is the case for the majority of the diesel products sold on Tamerx Diesel Products, your part's warranty is active as soon as you install it. In some other cases, warranty activation is contingent upon you sending us your core (i.e., your old part). Tamerx Diesel Products will provide you a return shipping label for parts that have a warranty with a core return condition. When we have received your core return, the part's warranty coverage begins. We reserve the right to void the product warranty if your core is not received within the allotted time, or if it isn't received at all. If the warranty for the diesel part you are purchasing has a core return requirement, it will be clearly noted on the product detail page/item listing.

What is a Core Charge?

A core charge (also called "core deposit") is similar to the deposit you might pay for a can or bottle of soda and is a standard requirement in the auto parts industry. For example, in many states, to promote recycling, you pay a deposit when you purchase a can of soda and receive your deposit back when you return the empty can. Many automotive parts have a core charge, or core price, that works in essentially the same way as a soda can deposit.

30 Day Core Charge Hold

You authorize Tamerx Diesel Products, to hold your credit card for the specified core charge amount and that you agree to return your core with 30 days of receiving the purchased part. When we have received your core return, the hold is released and the core charge payment is canceled.

The customer, or parts buyer, is responsible for any shipping costs associated with core returns unless otherwise specified in the product listing/detail page. Tamerx Diesel Products offers prepaid UPS shipping labels (SKU numbers UPS-CR1 and UPS-CR2) for use in returning your core that are available for purchase on our website during your shopping/order process.

The shipping label you will need to use for the core return is dependent upon what part you are purchasing. UPS-CR1 is good for cores weighing up to 20 pounds. UPS-CR2 is appropriate for shipping cores weighing 21 pounds or more. You must include enough information with the core return that clearly identifies it as a.) a Core Return, and b.) contains enough information we can use to clearly associate the core return with your order. Including a copy of the invoice or packing slip that came with the original shipment, clearly marked "Core Return", is ideal. Alternately, you can include a note marked as "Core Return" that includes your order number, full name and address, and phone number or other contact information. Failure to include this information with your returned core will most likely delay any due core credit being issued and/or delay any applicable warranty activation. Core returns need to be for the exact part purchased and cannot be damaged. Substituting another part in place of the part you have purchased is not acceptable.

All fluids must be drained.

If you have purchased a set or a parts package, you will need to return cores for all components of the set. For example, if you have purchaed a high pressure oil pump with an IPR valve, you will need to return both HPOP and IPR valve cores to receive proper credit. If you have purchased an EGR cooler/EGR valve package, your core return must consist of an EGR cooler core and an EGR valve core, or core credit will not be given.

Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Tamerx Diesel Products core charge presented to you online today with your item is representative of the most common core charge.


Built for durability and precise fitment, the Mack E7 Cylinder Head OEM 732GB3452MX is designed for 1985–1991 Mack E7 engine applications. This cylinder head is manufactured to meet original equipment specifications, ensuring proper alignment with valves, injectors, and related engine components. Engineered to withstand high combustion pressures and demanding operating conditions, it supports consistent engine function in heavy-duty environments. Careful machining and quality materials contribute to dependable sealing and long-term reliability. Tamerx Diesel Products LLC provides this Mack E7 cylinder head as a trusted solution for maintaining the integrity of your engine system.

FITMENT CHART

YEARMAKEENGINE(S)
1985Mack E7
1986Mack E7
1987Mack E7
1988Mack E7
1989Mack E7
1990Mack E7
1991Mack E7

PEOPLE ALSO ASKS | BLOG(S)

The Mack E7 Cylinder Head OEM 732GB3452MX is one of the most critical components in 1985–1991 Mack E7 diesel engines. It serves as the central structure that seals the combustion chamber and supports essential engine functions.

In a heavy-duty diesel engine like the Mack E7, the cylinder head plays a direct role in combustion efficiency, airflow management, and overall engine reliability. Without a properly functioning cylinder head, the engine cannot maintain compression or operate as designed.

The Mack E7 cylinder head is responsible for:

  • Sealing the combustion chamber with the head gasket
  • Housing intake and exhaust valves
  • Supporting fuel injector placement
  • Managing airflow between intake and exhaust ports
  • Withstanding extreme heat and pressure from combustion

Because it is constantly exposed to high temperatures and mechanical stress, the cylinder head must be built to strict OEM standards. Cracks, warping, or valve seat damage can lead to compression loss, coolant leaks, oil contamination, and costly downtime.

The OEM 732GB3452MX cylinder head is specifically engineered for 1985–1991 Mack E7 engines, ensuring proper fitment and compatibility with factory specifications. Correct alignment of valves, ports, and injector bores is essential for maintaining smooth engine operation.

For fleet owners and truck operators, the cylinder head is not just another engine part—it is a foundational component that directly impacts engine longevity, reliability, and overall operating stability.

A failing cylinder head is a serious engine issue that should never be ignored. The cylinder head seals the combustion chamber and manages airflow and coolant circulation. When it begins to fail, it can quickly lead to major engine damage.

The first step is to recognize the warning signs.

Common symptoms of cylinder head failure include:

  • Persistent engine overheating
  • White smoke from the exhaust
  • Coolant loss with no visible leak
  • Oil and coolant mixing
  • Rough idle or misfires
  • Loss of compression
  • Check engine light

If you notice any of these issues, stop driving the vehicle if overheating is present. Continuing to drive can warp the head further or damage the engine block.

Next, have the vehicle professionally diagnosed. A technician may perform a compression test, leak-down test, or cooling system pressure test to confirm whether the cylinder head is cracked or warped.

Once confirmed, your options typically include:

  • Repairing minor cracks if possible
  • Replacing the cylinder head
  • Inspecting the head gasket and related components

It’s also important to determine the root cause. Overheating, coolant neglect, or prolonged engine stress often contribute to cylinder head damage.

Acting quickly can reduce repair costs and prevent complete engine failure.

The cylinder head seals the combustion chamber and houses key components such as valves and injectors.

Symptoms may include coolant loss, oil contamination, compression issues, or visible cracks in the head.

The OEM 732GB3452MX is designed to match factory valve and injector layouts for Mack E7 engines.

Selecting OEM 732GB3452MX ensures proper fitment and compatibility with original engine components.

Mack Cylinder Heads