Product Description
The DDP DDPLLY-75 is a 75-inch braided stainless steel diesel fuel line designed for custom fuel system upgrades on 2001–2005 GM Duramax LB7 and LLY trucks. Built to handle the demands of high-flow and high-pressure diesel systems, it’s an ideal solution for custom routing in regulated return systems, CP3 conversions, or aftermarket filtration setups.
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
For use in custom fuel routing. Not a direct OEM replacement.
Specifications:
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Brand: DDP (Diesel Dealer Pros)
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Part Number: DDPLLY-75
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Length: 75 inches
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Construction: Braided stainless steel
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Fuel Line Type: Diesel-rated, high-pressure capable
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Fittings: AN-style compatible (may vary by configuration)
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Fuel Compatibility: Diesel, ULSD, Biodiesel
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Country of Origin: USA
Features & Benefits:
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Extended length for flexible routing to bed-mounted filters or pumps
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Durable braided outer layer for abrasion and heat resistance
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Compatible with DDP return blocks, fuel regulators, and filter systems
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Designed for performance diesel systems or retrofitted fuel return setups
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High reliability under extreme pressure and heat
Applications Include:
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CP3 retrofit kits
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Remote fuel filter mounts
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Frame rail to engine return line upgrades
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Dual-feed injection system support
