Product Description
The DDP DDPLLY-150 is an extra-long 150-inch braided stainless steel fuel line designed for custom diesel fuel system builds on 2001–2005 Duramax LB7 and LLY trucks. Ideal for bed-mounted fuel tanks, return systems, or lift pump installations, this premium-grade line delivers flexibility, strength, and resistance to fuel pressure, heat, and abrasion.
Vehicle Fitment:
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2001–2004 Chevrolet Silverado 2500HD / 3500HD – 6.6L Duramax LB7
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2004.5–2005 Chevrolet Silverado 2500HD / 3500HD – 6.6L Duramax LLY
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2001–2004 GMC Sierra 2500HD / 3500HD – 6.6L Duramax LB7
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2004.5–2005 GMC Sierra 2500HD / 3500HD – 6.6L Duramax LLY
This is a universal-length line for custom routing. Not a direct OEM replacement.
Specifications:
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Brand: DDP (Diesel Dealer Pros)
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Part Number: DDPLLY-150
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Length: 150 inches (12.5 ft)
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Construction: Braided stainless steel
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Ends: AN-style (may vary based on setup)
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Fuel Compatibility: Diesel, ULSD, B20+ Biodiesel
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Use Case: Supply or return line for custom routing
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Country of Origin: USA
Key Features & Benefits:
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Extra-long length for bed-mounted fuel systems, frame-to-engine routing, or dual-tank configurations
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Braided stainless steel provides outstanding durability and pressure tolerance
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Designed for custom diesel builds, lift pump kits, and regulated return systems
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Compatible with DDP fuel fittings, filters, blocks, and conversion kits
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Built to resist heat, abrasion, UV exposure, and biofuel corrosion
Common Uses:
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FASS or AirDog lift pump lines (frame to engine bay)
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Regulated return line from engine to tank
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Custom fuel systems with remote tank or sump
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Over-frame or under-bed fuel routing setups
