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Replace brittle factory plastic boots with the Mishimoto silicone boot kit designed for 2004.5-2005 Chevrolet Silverado 2500HD 3500 and GMC Sierra 2500HD 3500 equipped with 6.6L Duramax LLY diesel and Allison 1000 4L80-E NV4500 or S6-650 transmissions. This direct-fit kit seals turbocharger-to-intercooler and intake connections to stop boost leaks and deliver reliable high-pressure airflow for better throttle response and power.
Key Features
- 4-Ply Reinforced Silicone: 5mm wall thickness with DuraCore aramid fiber lining resists cracking tearing and punctures far beyond OEM plastic even at 500°F+ EGTs.
- Black Silicone Finish: Factory-style look integrates seamlessly under the hood while outperforming stock in heat oil and pressure resistance.
- Complete Replacement Kit: Four precision-molded boots plus eight T-bolt clamps cover all turbo outlet intercooler inlet outlet and intake tube connections.
- Direct OEM Fitment: Matches factory routing and dimensions for 2004.5-2005 LLY Duramax no modifications trimming or adjustments needed.
- Leak-Proof Performance: Eliminates common boost leaks that rob horsepower improves turbo spool and spool efficiency for noticeable gains.
- High-grade 4-ply silicone with internal aramid reinforcement rated for 300 PSI and extreme heat resistance.
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 2004-2005 | Chevrolet | Silverado 2500 HD | Base, LS, LT, WT |
| 2004-2005 | Chevrolet | Silverado 3500 | Base, LS, WT |
| 2004-2005 | GMC | Sierra 2500 HD | Base, SLE, SLT, WT |
| 2004-2005 | GMC | Sierra 3500 | Base, SLE, WT |
Specifications
| Brand | Mishimoto |
|---|---|
| Manufacturer Part Number | MMBK-DMAX-04BK |
| Product Type | Silicone Couplers & Hoses |
| Fitment Type | Vehicle Specific |
| GTIN | 748666003897 |
| Condition | New |
What's Included
One new Mishimoto silicone couplers & hoses identified by manufacturer part number MMBK-DMAX-04BK. Hardware, adapters, hoses, clamps, fluids, wiring, tools, and companion parts are included only when expressly supplied for this exact part number.
About Mishimoto
Mishimoto develops automotive cooling, intake, oil-management, exhaust, drivetrain, and vehicle-accessory products. Fitment, dimensions, interfaces, and included components remain exact-part-number specific.
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Frequently Asked Questions
Will this Mishimoto product fit my 2004-2005 Chevrolet Silverado 2500 HD?
That vehicle range is listed, but confirm the engine, body configuration, production date, factory interfaces, and every current Mishimoto application note for this exact part number.
What specifications should I verify before ordering?
Confirm every listed dimension, connection, thread, material, finish, quantity, mounting point, and companion-part requirement for the exact part number.
What is included with this Mishimoto product?
Only the exact product and hardware expressly supplied for this part number are included. Fluids, adapters, tools, and companion components are separate unless stated otherwise.
Installation Instructions
Follow the current Mishimoto instructions and vehicle service information for part number MMBK-DMAX-04BK. Verify every interface and clearance, work on a cool and safely supported vehicle, use the specified fluids, fasteners, seals, and torque procedures, inspect for leaks or contact, and recheck the installation after the first heat cycle.
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