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732GB3451M | Mack E7 Cylinder Head, New

Pricing: $2,200.16

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Is your Cylinder Head in it for the long haul?

We all know in order to get a million of 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 warranty. How's that for an aftermarket part?

Need a little extra proof? Let's talk Cylinder Heads.

  • Why buy reman when you can buy a brand new Mack E7 Cylinder Head Made to OEM specifications with Zero Core Charge.

  • You'll get quality you can count on knowing our supplier is a ISO 9001 certified facility, making each cylinder head to perfection.

  • Get maximum engine performance with new guides, seats, tubes, and valve train. Also every cylinder head is cleaned and inspected because we know quality matters.

  • Replace your old cylinder head with a brand new one made, with long lasting strength and durability and a low price you can't beat.


  • (1) Cylinder Head
    • (12) Seals
    • (6) Exhaust Valves
    • (6) Intake Valves
    • (12) Valve Springs
    • (24) Valve Locks
    • (12) Retainers
    • (12) Rotators


1-Year Parts and Labor 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:
  • 732GB3451M
  • ECH-3319
  • MAK732GB3451M
  • MAK732GB4482M

Technical Data

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

Tune-Up Specifications:
Ignition Timing: TDC
Intake Valve Lash: .016" Cold
Exhaust Valve Lash: . 024" Cold

New Thickness/Measured At 6.3910-6.3970"
Minimum Thickness6.3810"
Warp Spec. .0015 PER 18"

FIRE RING GROOVE DEPTH = .005-.013" *1993-94-> NON DYNATARD ENGINES = .014-.028" V/REC ** "Y" VALVE = .075" MIN.

Valve Collapse
Installed Stem Height Intake: 2.0000-2.030"Exhaust: 2.0050-2.0350"
Stem Diameter Intake: .3720-.3730" Exhaust: .3710-.3720"
Angle Intake: 30° OR 20°Exhaust: 30°
MarginIntake: .090" MINExhaust: .055" MIN**
Recession Intake: .035-.049" V/PRO Exhaust: .034-.048" V/REC *

Valve Guide Information
Guide HeightIntake: .919-.999"Exhaust: .919-.999"
Guide Clearance Intake: .0015-.0035"Exhaust: .0025-.0045"
Valve Seal Type Intake: POSITIVE Exhaust: POSITIVE

Valve Seat Information
Seat Width Intake: .0(more...)


  • P201576
  • P201576
  • HHP
  • New

Shipping Information

  • Item Requires Shipping
  • 153.0 lbs.
  • W42.0000” x H24.0000” x L48.0000”

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