FAQ

What is included with your engines?

Short blocks have the following included.
​Lower block, crankshaft, connecting rods, pistons, rings, main bearings, rod bearings, cam bearings. To sum it up. This does not include any bolt on parts. WARNING !!! Only purchase this unit if you have a qualified engine specialist who can properly clean, rework, and assemble to a complete running engine, it will require numerous new parts, and lots of time not recommended for the weekend warrior !!!

Long blocks include all the mentioned items of the short block assembly plus the cylinder head(s), rocker assemblies and pushrods , and new harmonic balancer and flywheel.
Our standard short and long blocks do not come with wiring harnesses, sensors, belts, hoses, motor mounts, injectors, fuel pumps, valve covers( These come on only for shipping purposes ), turbos or water pumps. You can buy these bolt on items but you Must Install them yourself.

CHOATE versions of completes are typically our long blocks with

Front Seal
Oil Cooler
Oil filter and base
Low Pressure oil pump
Rear seal
Camshaft positioning sensor
Crankshaft position
Dual Thermostats
Fuel filters
Glow plugs
Push Rods
Air intake temperature sensor
Breather
Up pipes
Fuel injectors
Fuel pump
Oil fill cap
EGR cooler outlet temperature
Exhaust back pressure
Turbocharger- Low
Turbocharger- High
Water pump

Theses turbos are not new. They are cartridges which means we need your housing to rebuild them. 

 

Engine cores

What is the cost of shipping the engine and returning my core?

We primarily deal with YRC, or UPS freight as they are the most reasonable in pricing. Shipping cost anywhere between  250-450 Depending on your location. Return shipping can be set up through our office by calling them directly.

What do I do to return my core?

Once you have installed your new engine and have packaged up the core in the provided pallet making sure to fill out the warranty registration and core tag, contact our office at 901-553-9847 and we take care of the rest.

What do core deductions mean and what would cause a deduction to be made?

OUR Dealers can use THE POLICY BELOW after the purchase of 3 motors.
NO CORE CHARGE WILL BE BILLED AT THE TIME OF PURCHASE, BUT BY BUYING YOU AGREE TO HAVE
THE ENGINE CORE READY FOR PICKUP AND RETURN TO US WITHIN 30 DAYS OF RECEIVING THE ENGINE.
FAILURE TO DO SO WILL VOID YOUR WARRANTY (UNTIL CORE CHARGE IS PAID IN FULL) THE CORE
CHARGE IS 2500.00 IF YOU HAVE NO CORE OR THE CORE IS NO GOOD .(CORE MUST HAVE NO VISIBLE
CRACKS OR HOLES AND ROTATE 360 DEGREES) CORE WILL BE INSPECTED AND MUST MEET DIESEL
DOCTOR OF TN SPECIFICATIONS TO DEEM IT A GOOD USABLE CORE. THE ENGINE WILL BE SHIPPED TO
DIESEL DOCTOR OF TN IN SHRINK WRAP ON A NON RETURNABLE WOODEN & THE APPROPRIATE CORE
CHARGE DUE. FAILURE TO PAY FOR CORE FEES WILL VOID YOUR WARRANTY. INSPECTION OF CORE
TAKES APPROX, 30 DAYS AND WE DO SUGGEST YOU ADVISE YOUR CUSTOMERS OF POSSIBLE CORE FEES
NOT TO EXCEED 2500.00 FOR A LONG BLOCK and 3000.00 FOR A FULL RUNNING ASSEMBLY.
WE REQUIRE A LIKE FOR LIKE CORE. MEANING IF WE SEND YOU A LONG BLOCK WE REQUIRE
EVERYTHING FROM YOUR CORE LONG BLOCK TO BE USABLE AND MACHINABLE.
ANY CORE ENGINES NOT RETURNED WITHIN THE SPECIFIED TIME WILL BE SUBJECT TO A RESTOCKING
FEE OF 40%.
WE WILL NEED THE YEAR, MAKE, MODEL, AND VIN NUMBER TO MAKE SURE YOU ARE BUYING THE
CORRECT ENGINE BEFORE WE SHIP.

Retail and NEW Dealers
Core charge will be paid UP FRONT IN THE AMOUNT OF $2500.00 FOR A LONG BLOCK, AND $3500.00
FOR A FULL RUNNING ASSEMBLY. IF YOU CHOOSE TO SEND YOUR CORE IN FIRST THERE IS NO FEE
CHARGED UP FRONT.
BY BUYING YOU AGREE TO HAVE THE ENGINE CORE READY FOR PICKUP AND RETURN TO US WITHIN 30
DAYS OF RECEIVING THE ENGINE. FAILURE TO DO SO WILL VOID YOUR WARRANTY.
IF YOU HAVE NO CORE OR THE CORE IS NO GOOD .(CORE MUST HAVE NO VISIBLE CRACKS OR HOLES
AND ROTATE 360 DEGREES) CORE WILL BE INSPECTED AND MUST MEET DIESEL DOCTOR OF TN
SPECIFICATIONS TO DEEM IT A GOOD USABLE CORE. THE ENGINE WILL BE SHIPPED TO DIESEL DOCTOR
OF TN IN SHRINK WRAP ON A NON RETURNABLE WOODEN & THE APPROPRIATE CORE CHARGE DUE.
INSPECTION OF CORE TAKES APPROX, 30 DAYS. ONCE INSPECTED APPROPRIATE CORE FEES WILL BE
KEPT AND BALANCING REMAINING WILL BE REFUNDED PROMPTLY
WE REQUIRE A LIKE FOR LIKE CORE. MEANING IF WE SEND YOU A LONG BLOCK WE REQUIRE
EVERYTHING FROM YOUR CORE LONG BLOCK TO BE USABLE AND MACHINABLE.

ANY CORE ENGINES NOT RETURNED WITHIN THE SPECIFIED TIME WILL BE SUBJECT TO A RESTOCKING
FEE OF 40%.
WE WILL NEED THE YEAR, MAKE, MODEL, AND VIN NUMBER TO MAKE SURE YOU ARE BUYING THE
CORRECT ENGINE BEFORE WE SHIP.

How do I activate my warranty?

Supplied with every engine is a complete copy of our warranty with an attached warranty registration form as the back page. Once filled out it can be emailed to office@diesel.911.com.You should also retain a copy for your records as it may be required to assist with a warranty concern.

 

Do I need to buy new injectors?

Injectors are not a serviceable item and should be removed for testing or replaced every (90,000 mi). We like to remind our customers that an injector failure, especially from worn out or contaminated fuel system causing an engine failure is not covered under warranty.

Injectors

Do I need a new oil cooler?

DDT Performance requires the replacement of the oil cooler otherwise the warranty will be void.

What do I do in case of a warranty concern? 

Contact CHOATE ASAP. DO NOT PROCEED WITH REPAIRS UNTIL INFORMING US!

  • Write down as much information as possible such as unusual noises, leaks, any lights in gauge cluster and what happened leading up to the incident.
  • If ever unsure as to the severity of a problem it’s best to have your vehicle towed to avoid additional damages.
  • Once at a repair facility you will need to contact CHOATErequesting a Warranty Approval Form. The shop will then need to perform the diagnostics necessary as to the failure and complete the form. The form then needs to be emailed to office@diesel911.com. Forms will be completed and returned within 1-2 business day stating what parts and labour will be covered. If you take matters into you own hands we can not cover warranty on our end.