Is it time for an overhaul?
If your engine is showing any of the following signs, an overhaul could be the solution. And when it comes time for serious service, trust the folks who built your engine in the first place. We know what’s causing the symptoms you describe because we’re experts in your truck’s engine technology.

Signs You Need a Purebred Overhaul 

If you’re experiencing some of these technical problems, the answer could be an engine overhaul.

Problem

  • Blue or black exhaust
  • White exhaust
  • Engine knocking
  • Reduced acceleration/hard start
  • Increased oil consumption
  • Low fuel economy
  • Low oil pressure
  • Poor engine brake performance

Diagnosis

  • One or more cylinders may be burning oil, or fuel is running too rich or lean
  • Coolant may be burning in one or more cylinders
  • Combustion timing may be off in one or more cylinders or oil contamination may have occurred
  • Possible loss of cylinder compression
  • The engine may be leaking or burning oil; either situation isn't good
  • Loss of cylinder compression or over-fueled cycles
  • Oil may not be reaching all the components
  • Possible loss of cylinder compression

Solution

  • Likely caused by worn or damaged piston rings, injectors, cylinder liner, valve stems and guides
  • Likely caused by worn or damaged cylinder liner, head gasket
  • Likely caused by worn or damaged liner seals, main bearings, piston skirt, valves
  • Likely caused by worn or damaged piston rings, valves, cylinder liner, head gasket
  • Likely caused by worn or damaged piston rings, cylinder liner, valve stems and guides
  • Likely caused by worn or damaged injectors, valve stems and guides
  • Likely caused by worn or damaged main bearings/rod bearings
  • Likely caused by worn or damaged piston rings, valves, cylinder liner

Why Mack®?

When it comes time to overhauling your Mack engine, we know you've got a number of options. But nobody knows how to revitalize your engine better than the people that built it in the first place. Here are just a few of the benefits of a Purebred Overhaul.
  • Quality
    • Don’t settle for parts that merely fit. Insist on durable Mack Parts engineered to work precisely with your engine.
  • Availability
    • Mack takes the stress out of overhauls by making it easy to find high-quality, affordable parts designed specifically for your Mack engine.
  • Expert Installation
    • Mack Certified Installations deliver more value for less time and money.

Levels of Service

Mack Purebred Overhaul revitalizes your engine through four different levels of service. Four great solutions, one common goal: to restore your engine's power, reliability and operating efficiency.

Our BASIC and PLUS packages get your rig back on the road in a fast, affordable manner, while the PREMIUM package restores your engine to its former glory, and the REMACK® engine gives your truck a whole new life.

Level 1 – BASIC
  • Mack In-Frame Overhaul kit
    • Six piston kits
    • Six cylinder liner kits
    • Main bearing set
    • Rod bearing set
    • Cylinder head gasket set
    • Lower engine gasket set
    • Upper engine gasket set
  • Mack Filters (oil/fuel/coolant)
  • Bulldog® Premium Oil
  • Coolant
  • Warranty Available: Extended coverage to 3 yrs/350,000 mi (563,270 km) when dealer-installed for additional fee

Level 2 – PLUS

  • Mack In-Frame Overhaul kit 
    • Six piston kits
    • Six cylinder liner kits
    • Main bearing set
    • Rod bearing set
    • Cylinder head gasket set
    • Lower engine gasket set
    • Upper engine gasket set
  • Mack Filters (oil/fuel/coolant)
  • Bulldog Premium Oil
  • Coolant
  • REMACK Cylinder Heads
  • Warranty Available: Extended coverage to 3 yrs/350,000 mi (563,270 km) when dealer-installed for additional fee

Level 3 – PREMIUM
  • Mack In-Frame Overhaul kit 
    • Six piston kits
    • Six cylinder liner kits
    • Main bearing set
    • Rod bearing set
    • Cylinder head gasket set
    • Lower engine gasket set
    • Upper engine gasket set
  • Mack Filters (oil/fuel/coolant)
  • Bulldog Premium Oil
  • Coolant
  • REMACK Cylinder Heads
  • Mack Turbo kit
  • Set of Six Mack Injectors
  • Warranty Included: Extended coverage to 3 yrs/350,000 mi (563,270 km) when dealer-installed at no cost

Level 4 – REMACK Engine

  • REMACK Basic (3/4) Engine
  • Mack Turbo kit
  • Set of six Mack Injectors
  • Mack Filters (oil/fuel/coolant)
  • Bulldog Premium Oil
  • Coolant
  • Warranty Included: Extended coverage to 3 yrs/350,000 mi (563,270 km) when dealer-installed at no cost

Warranty Protection

Table of Components Covered in the Purebred Overhaul Warranty

Nationwide Warranty
Parts: Two years/unlimited miles on overhaul kits
Labor: Two years/unlimited miles when dealer-installed on overhaul kits

Available PUREBRED Extended Coverage
Three years/350,000 miles when dealer-installed

  Level 1 – BASIC   Level 2 – Plus Level 3 – Premium  Level 4 - REMACK
Bearings, crankshaft  YES YES YES Included in Basic Engine
Bearings, connecting rod YES YES YES Included in Basic Engine
Cylinder liners YES YES YES Included in Basic Engine
Pistons, piston rings YES YES YES Included in Basic Engine
Connecting rods, caps YES YES YES Included in Basic Engine
Cylinder head gasket(s) YES YES YES Included in Basic Engine
Engine block casting YES YES YES Included in Basic Engine
Intake manifold casting YES YES YES YES
Exhaust manifold casting YES YES YES YES
Flywheel and bolts YES YES YES YES
Flywheel housing YES YES YES YES
Crankshaft, main caps & bolts YES YES YES Included in Basic Engine
Thermostat housing YES YES YES YES
Valve cover(s) YES YES YES Included in Basic Engine
Crankshaft dampener & bolts YES YES YES YES
Oil pan YES YES YES Included in Basic Engine
Oil cooler, engine YES YES YES YES
Oil cooler housing YES YES YES YES
Cylinder head casting(s) & bolts
YES YES Included in Basic Engine
Rocker arm assemblies   YES YES Included in Basic Engine
Intake & exhaust   YES YES Included in Basic Engine
Turbo     YES YES
Injectors*     YES YES
REMACK Basic Engine       YES


YES = covered component
Blank = not covered or not applicable
*Injector warranty is limited to two years/200,000 miles

All "covered components" must pass inspection or be replaced at the proper intervals, as prescribed by a Mack dealership, to qualify for continued coverage under this contract.


All Purebred Overhauls come with special extended warranty options. Watch this video or contact your local dealer to find out more.

Find a Dealer Near You

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