Intercooler Bar and Plate 2006-2010 6.6L Duramax LMM LBZ Chevrolet/GMC Sierra 2500HD 3500HD | SPELAB
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---tab Description---
LBZ/LMM Duramax Bar-and-Plate Intercooler Overview
The 2006-2010 Duramax engines—especially the legendary LBZ and the powerhouse LMM—are famous for their incredible tuning potential. However, pushing 500+ horsepower and running high-boost tunes easily overwhelms the factory charge air system. The OEM intercooler relies on weak plastic end tanks that are practically guaranteed to split or explode under heavy load and high PSI.
Stop leaving your performance to chance. The SPELAB Heavy-Duty Bar-and-Plate Intercooler is the ultimate bulletproof upgrade for your Duramax. We replaced the fragile factory design with indestructible Cast Aluminum End Tanks and a massive 3.35-inch thick Bar-and-Plate core .
Boasting a 34% larger core volume and stretching an impressive 46 inches in overall length, this competition-grade heat sink drastically lowers Intake Air Temperatures (IATs) and keeps your Exhaust Gas Temperatures (EGTs) firmly in check. Whether you are towing heavy through the mountains, running an upgraded turbo, or tearing up the drag strip, the SPELAB intercooler delivers the strength and cooling efficiency your LBZ/LMM demands.
Bar-and-Plate Intercooler Fitment
• 2006 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LBZ engine
• 2007 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LBZ engine
• 2007.5 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2008 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2009 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2010 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
Heavy-Duty Intercooler Key Features
• Indestructible Cast Aluminum End Tanks
Tuned LBZ and LMM engines generate massive boost pressures. We eliminated the weak plastic tanks and flimsy sheet-metal welds in favor of solid Cast Aluminum. These tanks are aerodynamically optimized for maximum internal airflow and structurally built to hold 100+ PSI without ballooning or leaking.
• Massive 3.35" Bar-and-Plate Core (34% Larger)
Featuring a 32.5% increase in core volume over the stock tube-and-fin design. This heavy-duty bar-and-plate construction offers immense thermal capacity, preventing "heat soak" during back-to-back dyno pulls or aggressive street driving.
• Extreme EGT Reduction
By supplying a significantly cooler, denser air charge to your intake manifold, this intercooler directly combats the dangerously high EGTs associated with high-horsepower tunes and heavy towing, protecting your engine internals.
• Reduced Pressure Drop for Faster Spool
The ultra-efficient, large-volume core minimizes restriction. This allows your factory or upgraded turbocharger to spool faster, reduces mechanical strain, and significantly sharpens your throttle response.
Product Specifications
Core Type
Heavy-Duty Bar-and-Plate
End Tank Material
Cast Aluminum Alloy
Core Thickness
3.35 in
Core Dimensions
37.2" L x 19.84" H
Overall Dimensions
46.0" L x 23.4" H x 9.1" W
Inlet / Outlet Size
3.0 in
Max Boost Rating
100+ PSI Capable
---tab FAQ---
LBZ/LMM Bar-and-Plate Intercooler FAQs
Q: Will this fit both the LBZ and LMM engines?
A: Yes, it is fully compatible as a direct bolt-on replacement for both the 2006-2007 LBZ and the 2007.5-2010 LMM engine platforms.
Q: Why do I need Cast Aluminum tanks for my tuned Duramax?
A: The factory intercooler uses plastic end tanks that become brittle and easily crack under increased boost levels from aftermarket tunes. Cast aluminum provides the ultimate structural integrity, ensuring your intercooler will never blow apart when you hit the throttle.
Q: Does this intercooler require any cutting or modification to install?
A: No. Despite the massive 34% increase in core size and 46-inch overall length, this intercooler is precision-engineered to drop right into the factory mounting locations.
Q: Will this support a truck with upgraded turbos and aggressive fueling?
A: Absolutely. With its huge thermal mass and 100+ PSI pressure tolerance, it is over-built to handle the extreme airflow and heat demands of heavily modified LBZ and LMM engines.
Q: Are intercooler pipes included?
A: This listing is for the heavy-duty intercooler and premium T-bolt clamps. Upgraded intercooler piping is sold separately. (Highly recommended for tuned trucks!)
Q: Do you sell Duramax intercoolers for other model years?
A: Yes! If you own a newer 2011-2016 Duramax, we have the LML Duramax bar-and-plate intercooler . And if you'd like a tube-fin core for your 2006-2010 LMM/LBZ, we also carry the LMM Duramax tube-fin intercooler .
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
---tab Description---
LBZ/LMM Duramax Bar-and-Plate Intercooler Overview
The 2006-2010 Duramax engines—especially the legendary LBZ and the powerhouse LMM—are famous for their incredible tuning potential. However, pushing 500+ horsepower and running high-boost tunes easily overwhelms the factory charge air system. The OEM intercooler relies on weak plastic end tanks that are practically guaranteed to split or explode under heavy load and high PSI.
Stop leaving your performance to chance. The SPELAB Heavy-Duty Bar-and-Plate Intercooler is the ultimate bulletproof upgrade for your Duramax. We replaced the fragile factory design with indestructible Cast Aluminum End Tanks and a massive 3.35-inch thick Bar-and-Plate core .
Boasting a 34% larger core volume and stretching an impressive 46 inches in overall length, this competition-grade heat sink drastically lowers Intake Air Temperatures (IATs) and keeps your Exhaust Gas Temperatures (EGTs) firmly in check. Whether you are towing heavy through the mountains, running an upgraded turbo, or tearing up the drag strip, the SPELAB intercooler delivers the strength and cooling efficiency your LBZ/LMM demands.
Bar-and-Plate Intercooler Fitment
• 2006 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LBZ engine
• 2007 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LBZ engine
• 2007.5 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2008 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2009 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
• 2010 Chevrolet/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LMM engine
Heavy-Duty Intercooler Key Features
• Indestructible Cast Aluminum End Tanks
Tuned LBZ and LMM engines generate massive boost pressures. We eliminated the weak plastic tanks and flimsy sheet-metal welds in favor of solid Cast Aluminum. These tanks are aerodynamically optimized for maximum internal airflow and structurally built to hold 100+ PSI without ballooning or leaking.
• Massive 3.35" Bar-and-Plate Core (34% Larger)
Featuring a 32.5% increase in core volume over the stock tube-and-fin design. This heavy-duty bar-and-plate construction offers immense thermal capacity, preventing "heat soak" during back-to-back dyno pulls or aggressive street driving.
• Extreme EGT Reduction
By supplying a significantly cooler, denser air charge to your intake manifold, this intercooler directly combats the dangerously high EGTs associated with high-horsepower tunes and heavy towing, protecting your engine internals.
• Reduced Pressure Drop for Faster Spool
The ultra-efficient, large-volume core minimizes restriction. This allows your factory or upgraded turbocharger to spool faster, reduces mechanical strain, and significantly sharpens your throttle response.
Product Specifications
Core Type
Heavy-Duty Bar-and-Plate
End Tank Material
Cast Aluminum Alloy
Core Thickness
3.35 in
Core Dimensions
37.2" L x 19.84" H
Overall Dimensions
46.0" L x 23.4" H x 9.1" W
Inlet / Outlet Size
3.0 in
Max Boost Rating
100+ PSI Capable
---tab FAQ---
LBZ/LMM Bar-and-Plate Intercooler FAQs
Q: Will this fit both the LBZ and LMM engines?
A: Yes, it is fully compatible as a direct bolt-on replacement for both the 2006-2007 LBZ and the 2007.5-2010 LMM engine platforms.
Q: Why do I need Cast Aluminum tanks for my tuned Duramax?
A: The factory intercooler uses plastic end tanks that become brittle and easily crack under increased boost levels from aftermarket tunes. Cast aluminum provides the ultimate structural integrity, ensuring your intercooler will never blow apart when you hit the throttle.
Q: Does this intercooler require any cutting or modification to install?
A: No. Despite the massive 34% increase in core size and 46-inch overall length, this intercooler is precision-engineered to drop right into the factory mounting locations.
Q: Will this support a truck with upgraded turbos and aggressive fueling?
A: Absolutely. With its huge thermal mass and 100+ PSI pressure tolerance, it is over-built to handle the extreme airflow and heat demands of heavily modified LBZ and LMM engines.
Q: Are intercooler pipes included?
A: This listing is for the heavy-duty intercooler and premium T-bolt clamps. Upgraded intercooler piping is sold separately. (Highly recommended for tuned trucks!)
Q: Do you sell Duramax intercoolers for other model years?
A: Yes! If you own a newer 2011-2016 Duramax, we have the LML Duramax bar-and-plate intercooler . And if you'd like a tube-fin core for your 2006-2010 LMM/LBZ, we also carry the LMM Duramax tube-fin intercooler .
---tab Shipping & Returns---
Fast Shipping Policy
Your order will be dispatched within 1-2 business days , and the package will arrive within your order's estimated date. Click for Shipping Policy
Easy Return Policy
Every order comes with a 14-day free return , which means you don't have to pay for a return slip. Click for Return Policy
SPELAB Auto Parts: 1 year from delivery; supplier conditions apply. SPELAB offers a one-year limited warranty from delivery for material/workmanship defects under normal use, original purchaser only, with proof of purchase. Consumables, wear/cosmetic damage, improper installation, alteration, misuse and removal/installation labor are excluded. Approved remedies are repair, replacement or replacement parts at SPELAB’s discretion.
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
SPELAB Auto Parts warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- SPELAB allows return requests within 30 days of delivery, with authorization and undamaged goods, original packaging and accessories. Tuners are final sale. Customer pays voluntary return shipping; original shipping is not refunded. SPELAB pays return shipping for approved damaged, incorrect or manufacturing-defective items. Transit damage must be reported within two business days and incorrect items within seven days. Based on what SPELAB Auto Parts offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- SPELAB Auto Parts
- Warranty duration
- 1 year from delivery; supplier conditions apply
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- SPELAB Auto Parts
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.