XDP Replacement Radiator Direct-Fit 2006-2010 GM 6.6L Duramax X-TRA Cool XD297
Fits 2006–2010 Chevy/GMC Silverado/Sierra 2500/3500 · 6.6L Duramax LBZ/LMM
Fitment- Authorized dealerGenuine XDP Xtreme Diesel Performance parts, sourced direct
- 30-day returnsSee the return policy
- Diesel techs on the line908-223-9744, call or text
- Secure checkout
Use the XDP X-TRA Cool Direct-Fit Replacement Radiator XD297 to upgrade the failed radiator in your 2006-2010 GM 6.6L Duramax LBZ and LMM. The X-TRA Cool Radiators are built for increased durability over your factory radiator. Using construction techniques borrowed from the HD and semi-truck industry, X-TRA Cool Radiators give you a long-lasting direct-fit upgrade to protect your engine and cooling system.
High-Efficiency Core Design
With more fins per inch, and heavy duty tubes to increase cooling efficiency, the upgraded core design allows you to maximize cooling potential of your Duramax.
Internally Reinforced
Using a special aluminum brazing technique, the X-TRA Cool Radiators are built for increased strength. The internally reinforced end tubes and outside corners provide more strength where the core is most vulnerable.
Gasket Design
A common failure point in many OE radiators, X-TRA Cool Radiators use a proprietary gasket that allows for contraction, expansion, and front-end movement.
Revised End Tanks
Using a fiber reinforced plastic mix adds strength to the end tanks. Reinforcement ribs are added to the weak points to help eliminate end tank failures.
Upgraded Mounting Points
The integrated mounting points have been updated for added strength. This allows for the radiator to be securely mounted in the factory locations.
End Tank/Core Assembly
X-TRA Cool Radiators use a heavy gauge steel crimp strip to mate the core to the end tanks. Instead of using aluminum like the factory radiator, the heavy gauge steel helps to eliminate the common failures of tank and core separation.
Features:
- Direct-Fit
- Upgraded Design For Increased Durability
- High-Efficiency Core To Maximize Cooling
- XD297 Specifications:
- Row Quantity: 2
- Core Width: 33-7/8 inch
- Core Height: 23-1/4 inch
- Core Thickness: 2-1/4 inch
- Inlet Connection: 1-3/4 inch
- Outlet Connection: 2 inch (Quick Connect)
- Trans Oil Cooler: Quick Connect Fittings
- Brand
- XDP Xtreme Diesel Performance
- SKU
- XD297
- UPC
- 856217008427
- Category
- Radiator
- Engine
- 6.6L Duramax
- Application
- 2006-2010 GM 6.6L Duramax
- Weight
- 44.0 lb
- Shipping
- Ground, ships in 1 to 2 business days
- 2006–2010Chevy/GMC Silverado/Sierra 2500/3500 · 6.6L Duramax LBZ/LMM
Not sure it fits? Call 908-223-9744 or text us the year, model and engine. We confirm fitment before you order.
- Shipping
- In-stock parts ship in 1 to 2 business days. Tracking is emailed as soon as the label prints.
- Returns
- 30-day returns on unused parts in the original packaging. Return policy.
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Why buy here
A diesel shop that sells parts, not a website that sells boxes.
Every part on this site is one our own techs can stand behind.
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We run what we sell
A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.
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Real techs on the phone
Call or text 908-223-9744 and you get a diesel tech, not a script.
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Authorized dealer
Genuine parts straight from the manufacturer, with the factory warranty behind them.
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Fast from stock
Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.
Authorized dealer for 140+ brands
All brands- 7+ Years in business
- 6+ Shop technicians
- 30,000+ In-stock SKUs
- 25+ Trucks given away
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What customers say
Verified reviews collected by Loox from real orders.
Good to know
Questions, answered straight.
If it is not here, call or text the counter. Real people, real answers.
Fitment
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Will this fit my truck?
The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.
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What if I order the wrong part?
Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.
Shipping
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When will it ship?
In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.
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Why did I only get part of my order?
We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.
Returns and warranty
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What is the return policy?
30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.
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How do warranty claims work?
We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.
Paying
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Can I pay over time?
Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.
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What is a core deposit?
Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.
The shop floor, Nazareth, PAFull Send Diesel, Nazareth, PA
A team of diesel people, not a call center.
Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.
Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.
Mon–Fri, 8am–4pm ET. After hours, text or email and we answer first thing in the morning.

























