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732GB3491 | Mack E7 Loaded Cylinder Head, Remanufactured

Pricing: $1,477.95

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Refundable Core Charge: $300.00
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Is your Cylinder Head in it for the long haul?

We all know in order to get a million miles out of your engine you need to keep your engine cool, well lubricated, and perform regular maintenance. Let one of these slip... and your rig is going to wind up in the shop with you stuck waiting for the repair.

It's no secret that diesel engine parts can cost an arm and a leg. That’s where HHP steps in; we offer premium aftermarket parts at up to 50% off OEM prices. While most believe aftermarket retailers sell cheap parts with zero warranty, packed in a beat-up box from who knows where, HHP is here to kick that stereotype to the curb. HHP provides Cylinder Heads with additional engine cooling properties and a 1-year parts warranty. How’s that for an aftermarket part?

Need a little extra proof? Let's talk Cylinder Heads.
  • Some places won't tell you where their parts come from. We aren't like some places. You will receive a brand new cylinder head that is manufactured and assembled in the U.S.A.
  • It can be a hassle trying to find the right parts but we can help. All HHP parts are crafted to strict OEM specifications which gives you proper fit and function. 
  • If you have the questions we will have the answers. We have ASE certified techs on staff to answer all of your technical questions.
  • Your parts should last the rest of your life not the rest of the year. This loaded cylinder head is made with cast iron for long lasting strength and durability.
  • Saving money on parts has never been easier. Our parts have equal or better quality compared to the OE at a much lower price.


  • (1) Loaded Cylinder Head


1-Year Parts Warranty
Warranty acceptance/denial will be at the sole discreation of each respected manufacturer. Each of HHP's manufacturers utilizes their own warranty procedures which vary in claim review time (typically between 3-5 weeks). On items that carry a labor warranty, rates are paid on flat-rate book time. Rates vary by manufacturer.
OEM Applications:
  • 732GB3491
  • 732GB3491AM
  • 732GB5341

Technical Data

Fits Applications:


Mack E7 Engine Specifications:
Year: 1989-2002
Liter: 12.0
CID: 728
Cylinders: L 6
Bore/Stroke: 4.8755-4.8770" 6.500"
Compression Ratio: 16.5:1
Firing Order: 1-5-3-6-2-4
Comments: 12.0L Diesel, 4 Valve Per Chamber

Tune-Up Specifications:
Oil Pressure At Idle: 17-28 Psi
Oil Pressure: -
Intake Valve Lash: .016" Cold
Exhaust Valve Lash: .024” Cold

Casting Number--Type--Comments
456-CFG-5128-Crankshaft-E-7 Diesel Crankshaft
456-CFG-5137-Crankshaft-E-7 Diesel Crankshaft
456-GC-5138-Crankshaft-Uses 1/2" timing pin on rear, Part # 183GC221
456-GC-5140-Crankshaft-Uses 9/16" Flat Pin on Rear, Part # 183GC238
530GB3145(A)(B)-Flywheel-MIN 1.066" (27.076 MM) - SEE TB 2295R
732GB23696B-Head-Fire ring groove .008" deep.
732GB2696-Head-Fire ring groove .008" deep.
732GB4464M-Head-Firering grve DEPTH .005-.013"
732GB4468M-Head-Firering grve DEPTH .005-.013"
732GB5311A-Head-Fire ring groove .008" deep.
732GB5320M-Head-Firering grve DEPTH .005-.013"
732GB5326M2-Head-Firering grve DEPTH .005-.013"
732GB5327M-Head-Firering grve DEPTH .005-.013"
732GB53311A-Head-Fire ring groove .008" deep.
732GB5335M-Head-Firering grve DEPTH .005-.013"
732GB5292A-Head-4V Mack, E6/E7


  • P200523R
  • P200523R
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 155.0 lbs.
  • W42.0000” x H24.0000” x L48.0000”
  • Free Shipping!

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