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Engine - New Replacement Longblock Center Mount Turbo 6.5L Optimizer
Engine - New Replacement Longblock Center Mount Turbo 6.5L Optimizer

Engine - New Replacement Longblock Center Mount Turbo 6.5L Optimizer

Your Price: $7,252.46
Custom Drop Ship Delivery
  • Condition:New
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New AM General - GEP Optimizer ™ 6.5L Diesel Engine - Center Mount Turbo Van & H1 Hummer

This is the latest version of the 6.5L engine still produced new today. These are build-to-order engines in that your engine is run down the assembly line after order. Unfortunately, they are not built ahead of time and stored. Standard lead time to delivery is approximately 6-weeks, sometimes less depending on assembly plant's load.

This engine directly replaces engines in 1996 - 2002 Savanna G2500/3500 6.5L Turbo Diesel center mount turbo applications, such as those found in full vans, cab and chassis for box vans and bus configurations.

This engine also directly replaces engines in 1996 and up H1 Hummer 6.5L Turbo Diesel. This offering applies to the H1 Hummer Civilian application (non-military).

Features & Included:

  • Engine Longblock Assembly (engine, timing cover, balancer, covers, pan, lift brackets, as pictured)
  • Block Heater (120 volt)
  • Oil Filter (filter and filter fitting)
  • Oil Pressure Sensor/Switch pre-installed
  • Filled with 15w40 Break-In Oil.
  • HD = Heavy Duty Emissions Rating
  • Diamond Pre-Combusion (largest) Cups for higher HP ratings
  • Cylinder Heads with 60 degree intake manifold bolt angle.
Engine features all metric fasteners, so if replacing a Pre-1999 model Engine, please inquire after purchase about a metric fastener kit after purchase necessary for replacing your existing engine (will need to know year/make/model). This is only available to customers who purchase a Longblock here. Approximately $95 shipped.

Payment and Shipping

Please choose the payment method that best suits your need. Options are Cash Value and Credit Card Courtesy. You can purchase the engine for Cash Value by selecting the Cash Value option. With this option you will checkout, during checkout you'll be presented with an option to "Check / MO / ACH / Wire / CC" where you will have a blank to specify how you would like to manually pay, example Wire for Wire Payment. After checkout you will be emailed banking information for the Wire if that's what you selected. You will have 1 week to remit payment for Cash Value payment. Please do not select this option when checkout using a credit card, if this occurs you will receive a supplemental invoice for the missing amount to complete your order.

Select the shipping option that meets your need. Items with shipping amounts are for Continental USA shipments only. Flat rate shipping is provided as courtesy and we cannot provide alternative shipping estimates, please select an option provided. Shipments to Non-Continental USA States and International ship via Cargo or Air Freight. Shipping estimates for Air and Cargo can be provided prior to order, but please provide complete address an delivery type, we will use that estimate with your order invoiced separately.

Shipping will be performed in a secure shipping crate, exactly as pictured. Engine is safest shipping in this method!

Engine Preparation Options

If unit is being shipped via Air Freight (typically international) the engine must be free of oil, new engines come with break-in oil in the pan, so engine must be un-crated and drained of oil and a new filter installed (that is dry). This requires being sent to Unique Diesel for processing making it not possible to drop-ship from factory, this is part of the cost associated with this option.

Addition of timing tab for mechanical engines. The factory cannot modify this assembly as it's intended for electronic engines. We can optionally add the mechanical timing tab to the front of the engine's timing cover with special tooling and have it match TDC for timing with timing lights, We do this and add the plug in the timing cover to delete the crank sensor opening. This makes the engine have to come to us instead of being able to drop-ship. This is part of the expenses figured into the cost of the option.

Optional Core Engine Return Process

Core engines left in the field create a negative environmental impact. Unique Diesel requests that core engine be returned for proper recycling both usable and damaged components. This optional core return service provide a $500 voucher towards the core return. Here is how that works. Package the old complete core long block engine in the packaging that the new engine came with, and notify us that the core is ready for pickup. We will schedule truck freight to retrieve engine core engine. Once crate is here we will evaluate core briefly to determine it is a whole core from single engine and issue a credit. The credit will be the offered price less the actual freight shipping costs here. This service available to USA Domestic shipments only.

Note: Residential lift-gate service is not available for core service, the nearest freight terminal will given for you to drop-off.

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