DDP DDPLLY-50NZ DURAMAX 04.5-05 LLY NOZZLE SET 20 PERCENT OVER

The DDP DDPLLY-50NZ is a 50-inch braided diesel fuel line built for custom fuel return or supply routing on 2001–2005 GM Duramax LB7 and LLY engines. Featuring non-zinc-coated ends for maximum compatibility with modern ultra-low sulfur diesel (ULSD) and biodiesel blends, this line is engineered for durability, flexibility, and long service life in high-performance fuel systems.

Vehicle Fitment:

• 2001–2004 Chevrolet Silverado 2500HD / 3500HD – 6.6L Duramax LB7

• 2004.5–2005 Chevrolet Silverado 2500HD / 3500HD – 6.6L Duramax LLY

• 2001–2004 GMC Sierra 2500HD / 3500HD – 6.6L Duramax LB7

• 2004.5–2005 GMC Sierra 2500HD / 3500HD – 6.6L Duramax LLY

Custom-use line; not a direct OEM replacement.

Specifications:

• Brand: DDP (Diesel Dealer Pros)

• Part Number: DDPLLY-50NZ

• Length: 50 inches

• Construction: Braided stainless steel

• Fitting Ends: AN-style, non-zinc coated

• Fuel Compatibility: Diesel, ULSD, Biodiesel (B20 and above)

• Pressure Rating: High-pressure diesel-capable

• Application: Supply or return line in custom fuel systems

• Made in: USA

Key Features:

• Non-zinc ends prevent corrosion from modern fuels

• Ideal for regulated return systems, CP3 swaps, or aftermarket filter kits

• Braided construction resists heat, abrasion, and high-pressure expansion

• Long-lasting, leak-free performance under extreme conditions

• Compatible with other DDP fuel system components

 Suggested Pairings:

• DDPNLLY return blocks

• CP3 conversion kits

• DDPLLY-75NZ and 100NZ for multi-line setups

• Frame-rail or bed-mounted fuel system components