Grizzly Injection Line (Cylinders 3 and 6) 01-04 GM 6.6L Duramax
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- Ships from Grizzly
Restore proper high-pressure fuel delivery in your GM 6.6L Duramax LB7 with the Grizzly GA93721 Injection Line for cylinders 3 and 6. Designed as a direct replacement high-pressure fuel injection line, the GA93721 helps maintain proper fuel rail pressure, injector sealing, and reliable common rail fuel system performance under towing, hauling, and daily driving conditions.
The high-pressure injection lines on the Duramax LB7 are responsible for delivering precise fuel volume and pressure from the fuel rail to each injector. Damaged, leaking, bent, or contaminated lines can contribute to fuel pressure loss, hard starting, rough idle, poor drivability, fuel leaks, or injector performance issues. The Grizzly GA93721 is built to meet or exceed OEM specifications for dependable sealing integrity, proper fitment, and long service life.
Restore proper high-pressure fuel delivery in your GM 6.6L Duramax LB7 with the Grizzly GA93721 Injection Line for cylinders 3 and 6. Designed as a direct replacement high-pressure fuel injection line, the GA93721 helps maintain proper fuel rail pressure, injector sealing, and reliable common rail fuel system performance under towing, hauling, and daily driving conditions.
The high-pressure injection lines on the Duramax LB7 are responsible for delivering precise fuel volume and pressure from the fuel rail to each injector. Damaged, leaking, bent, or contaminated lines can contribute to fuel pressure loss, hard starting, rough idle, poor drivability, fuel leaks, or injector performance issues. The Grizzly GA93721 is built to meet or exceed OEM specifications for dependable sealing integrity, proper fitment, and long service life.
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.