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International DT466 Engine

International DT466 Engines For Sale

The DT466 is an inline-6 four-cycle engine with 466 cubic inches of displacement. The 1984 to 1992 DT466 used a Bosch MW injection pump, whereas 1993 to 1995 models showcased a Bosch P pump. All 1996 to current models used an HEUI (hydraulically actuated electronically controlled unit injector) fuel system. In 2007, the DT466 was replaced in aid of International's new emissions-compliant engine family designation, it was then renamed the MaxxForce DT - the current model engine still uses this name.

Engine Applications and Uses

  • Buses
  • Medium-Duty Trucks
  • Regional Haul
  • Agricultural
  • Construction


When engines go wrong, some are fixable and some are just not worth the time and money, subsequently meaning the engine is simply no more. Listed below are some common issues we hear from customers who intend to replace their DT466.

AERA Association Member

  • Spun Crankshaft Bearings
  • Cracked Cylinder Head(s)
  • Scored Pistons and Liners
  • Over Fueling Connecting
  • Rod Failure
  • Lack of oil or oil pressure
  • Crankshaft Failure
  • Lifter/Roller Failure
  • Extreme Blow-By
  • Dropped Valves
  • Camshaft Failure


Sadly, there is an array of issues that can arrest your engine. Some occasions mean that your only alternative is to replace it. However, every so often you may just need a few more parts to bring it back to life, or maybe, the engine needs a well-earned refreshment. Of course, cost, time, and availability will determine your decision-making - so let us inform you of the pros and cons of a new engine from the dealer.

Remanufacturing Process

If someone is unlucky enough to witness a serious internal engine failure but is lucky enough to be able to re-use some of their external components…a remanufactured 466 long block is a good way to go. In addition, a long block is also perfect if you are hoping to spend as little as possible.

To accomplish this, our team of machinists and engine builders will do a full core tear down, cleaning, inspection, and machining of the engine before it leaves our facility, guaranteeing every engine is in good condition each and every time.

However, it is crucial to point out that all of our 466 remanufactured long blocks are constructed with a mixture of both reman and new parts. We do not recondition or refurbish old engine parts, instead, we entirely rebuild the old 466 motors back to OEM specs.


In an effort to avoid the early termination of both parts and the 466 itself, we remove all impurities by stripping the blocks, heads, rods and camshafts which are then meticulously cleaned in a chemical jet wash or hot tank.


Crankshafts are precision machined to exact tolerances, polished & magnafluxed, then thoroughly inspected by our quality control department.


To guarantee a proper sealing surface with the block, and to achieve a finish compatible with recent gasket materials, the heads are resurfaced. Valve height is mic-d and every head is vacuum tested to assure correct valve seating.


The magnetic we use carefully inspect for any cracks or damage to the block. To ensure the avoidance of cylinder head distortion after the head is bolted and torqued to the block, the cylinder heads are bored and honed to precise tolerances. In turn, this drastically reduces the cause of engine blow-by. Block surfaces are machined and then inspected to achieve a proper finish.


Camshafts are inspected and precisely machined to provide the correct lift. Lobs are measured with a micrometer to make sure OEM tolerances are met.


Fresh bushings are fitted and machined in all bushed rods. Every rod is carefully inspected for bend and twist. Connecting rods are cleaned, then machined to O.E.M. specifications and honed to the usual diameter of original equipment for even distribution of strain on the bearings.


Pistons and rings, bearings, gaskets and seals, and liners are all brand new as standard for our 466 long blocks. These new parts ensure dependable performance and reliability throughout the life of your engine. The new parts are a mixture of OEM and Aftermarket when available.

DT 466 - DT530 Engine

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In addition, wearable parts are replaced every time, all International DT466 core material is then inspected and examined against the original specifications to ensure correct dimensional tolerances. After all, the aim of remanufacturing is to make it as close to new as possible. Alternate parts are either new or requalified. If new, the parts are produced in the exact same manufacturing process as the original 466. Testing is performed to manufacturer specifications and original production standards.

DT466 Long Block Parts List:

  • Cylinder Block
  • Complete Loaded Cylinder Head
  • Crankshaft
  • Connecting Rods
  • Intermediate Cover
  • Timed Front Gear Group
  • New Upper and Lower Gasket Set
  • Camshaft
  • Followers/Lifters
  • Pistons
  • Liners
  • Rings
  • **1 Year Warranty

*Note: We can provide new oil pumps, oil coolers, water pumps, turbos, injectors, and fuel pumps for an additional cost with the long block but will not come assembled to the engine.

**First 6 Months Parts & Labor, Second 6 Months Parts Replacement Only. Ask your sales representative for a full copy of our remanufactured long block warranty.

DT466 Spec Engine Data 
Name MaxxForce DT (formerly DT466)
Displacement 7.6 liters, 466 cubic inches
Block Cast Iron, wet sleeve, inline 6
Bore 116 mm (4.59 in)
Stroke 119 mm (4.68 in)
Firing Order 1-5-3-6-2-4
Compression Ratio 16.4 : 1 (may vary by application)
Aspiration Turbocharged & intercooled in various configurations through the years, including a sequential twin-turbo system.
Injection Direct injection
Horsepower Up to 300 hp @ 2,200 rpm
Torque Up to 860 lb-ft @ 1,300 rpm
Engine Weight (Dry) 1,425 lbs [646 kg]

Give us a call today at 844-340-4114 for immediate sales and support for the Cummins 4BT, Cummins 6BT, 6CT, ISC, 855, QSB 4.5 L or CAT 3306. If you have any questions check out our FAQ Page. We are always ready to help or just listen to your crazy off-roading adventures!

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