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MAHLE Fuel Injector Seal Kit 01-04 GM 6.6L Duramax
MAHLE

MAHLE Fuel Injector Seal Kit 01-04 GM 6.6L Duramax

MPN: MAH-GS33500A

Are you replacing injectors on your Duramax and want to prevent leaks and poor fuel delivery? The MAHLE Fuel Injector Seal Kit is designed to reseal your injectors and restore dependable performance in GM 6.6L Duramax…

Street Performance
$3.79
Ships From Supplier · Ships in 37 business days
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Fitment sensitive
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Warranty
Warranty Information Pending

Warranty information has not yet been provided for this product. Contact FullSpecDiesel for help locating the applicable manufacturer or supplier warranty.

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Are you replacing injectors on your Duramax and want to prevent leaks and poor fuel delivery? The MAHLE Fuel Injector Seal Kit is designed to reseal your injectors and restore dependable performance in GM 6.6L Duramax engines. When injector seals wear out or become damaged during removal, they can cause engine misfires, rough idling, hard starting, and significant power loss, reducing engine efficiency and creating drivability problems. This OE-quality seal kit provides the components needed to reseal one injector, helping maintain proper fuel system pressure and ensuring your injectors operate exactly as intended. Whether you're replacing injectors or performing preventative maintenance, the GS33500A helps deliver the leak-free fit and reliability diesel owners expect. This MAHLE kit is designed to meet or exceed factory specifications. These precision-manufactured seals provide a tight, reliable fit that helps prevent leaks and maintain proper injector positioning. Each kit services one injector and is built to deliver the same level of sealing integrity trusted by OEM manufacturers and professional technicians.

Product conditions

Professional installation is recommended.

Return eligibility
Returnable within 30 days of confirmed delivery, in original condition, with an approved RMA
Return window
30 days from confirmed delivery
Restocking fee
No restocking fee
Return shipping
Customer pays return shipping on voluntary returns
Made to order
No
Backorder status
Not backordered
Cancellation
Cancellation is only possible before the supplier order is submitted
Warranty provider
Warranty Information Pending
Warranty duration
Pending verification
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
MAHLE

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.