5.9L 1989-1993 Cummins Full Running Daily Driver Dodge Ram Diesel Crate Engine

5.9L 12 Valve Cummins Complete Drop In Ready Engine

1989-1993-Manufacturer: CHOATE Engineering Performance CHOATE Part Number:CEP59CFW8993

5.9L 12 Valve Cummins Complete Drop In Ready Engine includes:

• Fuel Injectors
• Upgraded Two Piece Manifold
• KDP Fix 
• Fuel lines 
• Injector Pump 
• Fuel Supply Lines
• Valve Cover
• TurboCharger
• Water Pump
• Intake Manifold
• Coolant Temp Sensor
• Oil Cooler
• Oil Filter
• Oil Filter Housing
• New Freeze Plugs
• New Harmonic Balancer
• Front Main Seal
• Rear Main Seal
• Head Studs
• Remanufactured Head
• New Guides
• New Valve Seals
• CNC Valve Machining
• Pressure Tested
• Surfaced to exceed Ra finish for MLS Gaskets
• New Tappets
• New Upgraded Pistons
• New Piston Rings
• New Pin Retainers
• Balanced and weight matched Rotational Assembly
• OE Crank Flange Bolts
• New Rod Bearings
• New Main Bearings
• New Cam Bearings
• Install New Rear Cover Gasket
• Install Lower Oil Pan
• Billet Freeze Plugs (See Video)
• Install Pickup Tube Gasket 
• 5 year/100k Mile Warranty

Machining Processes Include:

• Full CNC blue print machining, (bore, deck, hone and line honed) (See Video)
• The Cylinder bores are blue print bored to a true 90 degrees over the crankshaft center line
• Diamond honed to within .0002 inch for precise piston to cylinder bore clearance (See Video)
• Bored and line hone the crank bore housing to precisely align the crankshaft in the engine block.
• Torque Plate Honed (See Video)
• The piston diameter measured to the nearest .0001 inch matched to cylinder bores.
• The Cylinder block is surfaced to a finish of RA30 or lower, which meets the factory specification in both flatness and smoothness for the block to head sealing surface. (See Video)
• This is mandatory for proper sealing of a MLS Gasket.

Billet Freeze Plugs made in house at Choate Engineering Performance

This is why we square deck the block!

This is why we balance the rotational assembly!

This is why we torque plate hone!

Why we only use the Rottler hone for YOUR engine!

Why do we encourage you to buy a long block instead of a short block?

On the fence on which engine you should buy? Daily Driver VS WorkHorse Engine.

Check out this video with Cass. He explains the issues and the fixes of the Cummins platform. (And How we fix them.)

Cylinder Heads- While there aren’t as many issues with the bottom end of the Cummins, there are really BIG problems in the head department.

Valve seats fallout contacting the piston and cause catastrophic failure. We machine oversize valve seats within creased press fit area to remedy this issue.

Stamped gallery plugs in the heads blow out causing a mixture of oil and coolant, destroying the bearings. We thread the head and insert threaded plugs to make sure this issue never rears its ugly head.

Plus: Freeze plugs in the block blow out leaving you at best stranded on the side of the road, at worst, with a severely overheated engine in need of remanufacturing. Every new Choate Cummins engine comes standard with billet freeze plugs that are blow out proof using a tie bar bolting them into the side of the block.

Assembled by Our Professional Team in house

This CHOATE engine is fully balanced, and is the perfect engine for spirited daily driving, consumer level towing and everyday life.

• Upgrades over the Model C include but are not limited to:

• Torque Plate Honing
• Full Engine Balancing
• Harmonic Balancer
• Head Studs
• Upgraded Warranty

Common Issues With The Dodge Cummins 5.9L Engine (and how we fix them)

• Cylinder Heads- While there aren’t as many issues with the bottom end of the Cummins, there are really BIG problems in the head department.
• Valve seats fail contacting the piston and cause catastrophic failure.
• We machine oversize valve seats within creased press fit area to remedy this issue.
• Stamped gallery plugs in the heads blow out causing a mixture of oil and coolant, destroying the bearings.
• We thread the head and insert threaded plugs to make sure this issue never rears its ugly head.
• Freeze plugs in the block blow out leaving you at best stranded on the side of the road, at worst, with a severely overheated engine in need of remanufacturing.
• Every new Choate Cummins engine comes standard with billet freeze plugs that are blow out proof using a tie bar bolting them into the side of the block.

Optional Parts are not installed. Optional parts are covered under the manufacturer’s warranty and not by CHOATE.