DDP DDPNLB7-STK DURAMAX 01-04 LB7 INDIVIDUAL STOCK BRAND NEW INJECTOR

The DDP DDPNLB7-STK is a stock-style fuel return block kit engineered for 2001–2004 GM 6.6L Duramax LB7 engines. Designed to replace the restrictive factory return tee, this block provides a leak-free, OEM-style connection point for the injector return lines. Precision-machined from billet aluminum and anodized for durability, it’s the ideal solution for maintenance or mild upgrade applications where stock routing is preferred.

Vehicle Fitment:

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

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

Designed as a direct-fit replacement for the factory return line tee.

Specifications:

• Brand: DDP (Diesel Dealer Pros)

• Part Number: DDPNLB7-STK

• Material: CNC-machined billet aluminum

• Finish: Black anodized

• Port Style: Stock-style hose barbs for OE return line compatibility

• Mounting Style: In-line, no frame modifications required

• Seal Type: High-temp O-rings included

• Made in: USA

Features & Benefits:

• Direct replacement for the factory return line tee

• Built from high-strength billet aluminum for long-term reliability

• OE-style barbed fittings allow quick, leak-free connections

• Anodized for corrosion resistance and clean appearance

• Compatible with stock fuel systems or mild aftermarket upgrades

• Ideal for restorations, maintenance, or preventative replacement

 Included in Kit:

• (1) Billet return block

• (2) OE-style hose barbs

• (1) O-ring kit

• (1) Mounting hardware pack (if applicable)

• (1) Installation guide