DURAMAX FUEL FILTER PRIMER SEAL REBUILD KIT 6-PIECE | IFJF

iFJF part No.: FJ-SEAL06. Product Overview The Duramax Fuel Filter Primer Seal Rebuild Kit 6-Piece | iFJF from iFJF Direct is engineered to meet or exceed OEM specifications for GMC vehicles (2001-2013) with LMM. This fuel filter seal kit delivers reliable performance at factory-direct pricing. Key Features Premium Quality: Manufactured to strict quality control standards with durable materials for long service life Direct Fit: Designed as a direct replacement no modifications required for installation on compatible vehicles Factory Direct Value: Eliminate the middleman markup get OEM-quality parts at aftermarket prices Fast US Shipping: Ships from our US warehouse within 1 business day of order Compatibility This product is designed to fit GMC vehicles (2001-2013) equipped with the LMM engine. Please verify compatibility with your specific vehicle using our fitment guide or contact our support team before ordering. Why Choose iFJF Direct? Quality Assurance: Every product undergoes multi-point inspection before shipping US-Based Support: Our customer service team is available to answer your fitment and installation questions Hassle-Free Returns: 30-day return policy on unused parts in original packaging Expert Community: Join thousands of DIY mechanics and professional technicians who trust iFJF Frequently Asked Questions Q: What's included in this 6-piece kit? A: The kit includes 4 Viton-75 O-Rings and 2 Buna-N (nitrile) plunger U-cups the exact seals needed to rebuild the primer pump on your 2001-2013 Duramax fuel filter housing. Q: How is this different from the complete kit with the bleeder screw? A: This is the seals-only version perfect if your bleeder screw is still in good condition or if you've already upgraded to a billet bleeder screw. The complete kit adds a billet aluminum bleeder screw for full assembly refresh. Q: Will these seals stop my Duramax from losing fuel prime? A: Yes. Air intrusion through degraded primer pump seals is the most common cause of lost prime in Duramax engines. Replacing these seals restores the air-tight seal needed to maintain fuel system prime. Q: How often should these seals be replaced? A: OEM seals typically last 100,000-150,000 miles before degradation becomes noticeable. If you're experiencing hard starts after the truck sits or see fuel seeping from the primer pump, it's time for a rebuild. Q: Are Viton seals better than the factory rubber? A: Yes Viton (FKM) provides superior chemical resistance to modern diesel fuel and biodiesel blends. The original factory Buna-N seals are adequate but degrade faster when exposed to ULSD and biodiesel additives. Related Products