Description
Billet Aluminum Air Bleeder Screw — Permanent Fix for Duramax Fuel Filter Housing
If you've changed a fuel filter on a Duramax, you already know: the OEM plastic bleeder screw is a disaster waiting to happen. It strips, the hex head rounds off, and eventually it either seizes or breaks — leaving you stranded with a fuel system full of air and no way to bleed it. The iFJF Billet Aluminum Air Bleeder Screw (Red Anodized) replaces that weak link with a CNC-machined 6061-T6 aluminum upgrade that will outlast your truck.
Compatible with 2001-2017 GM Duramax 6.6L diesel fuel filter housings (LB7, LLY, LBZ, LMM, LML), this screw threads directly into the factory bleeder port with zero modifications. The precision-cut threads match the housing perfectly — no cross-threading, no leaks. The red anodized finish adds corrosion resistance and a clean under-hood look.
Key Features
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6061-T6 Billet Aluminum: Machined from a solid block of aircraft-grade aluminum — the hex head won't round off, the threads won't crack under heat and pressure
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Perfect OEM Thread Match: Threads precision-cut to match GM fuel filter housing specs — clean, leak-free fit every time
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Universal Duramax Fitment: Fits all 2001-2017 Duramax fuel filter housings including LB7 (2001-2004), LLY (2004.5-2005), LBZ (2006-2007), LMM (2007.5-2010), and LML (2011-2017)
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Replaces OEM: GM 97363195, GM 513081000
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Red Anodized Finish: Corrosion-resistant, looks great under the hood, and easy to spot when bleeding the filter
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5-Minute Install: Unscrew old plastic screw, insert new O-ring, thread in billet screw — done
Technical Specifications
| Specification |
Value |
| Material |
6061-T6 Billet Aluminum |
| Finish |
Red Anodized (Type II) |
| Thread |
OEM-matched (GM spec) |
| Replaces |
GM 97363195, 513081000 |
| SKU |
FJ-AD04-RD |
FAQ
Q: What makes this better than the OEM plastic screw?
A: Three things: (1) Material — billet aluminum vs. injection-molded nylon. The OEM screw hex head rounds off after 2-3 filter changes because plastic deforms under torque. (2) Thread strength — aluminum threads don't crack when the housing expands from heat. (3) Heat resistance — the OEM plastic screw softens at under-hood temperatures, which causes it to seize in the housing.
Q: Will this fit my 2014 LML?
A: Yes. The bleeder screw thread has been consistent across all Duramax filter housings from 2001 through 2017 (LB7 through LML). GM used the same basic filter housing design for 17 model years.
Q: Do I need a new O-ring?
A: Our bleeder screw includes a fresh Viton O-ring pre-installed. If you're rebuilding the entire filter head, get our 6-piece rebuild kit which includes this screw + all housing seals.
Q: Can I overtighten this?
A: Hand-tighten, then 1/8 turn with a wrench. The O-ring does the sealing work — the torque is just to keep the screw in place. Unlike the plastic screw, this won't strip from moderate torque, but don't crank on it either.
Q: Will the anodizing fade over time?
A: Type II anodizing is highly UV and chemical resistant. Under normal under-hood conditions, the red color will maintain its appearance for years. Diesel fuel and engine degreasers won't affect the finish.
Q: Does this fit all Duramax fuel filter housings?
A: Yes — the GM fuel filter housing bleeder screw thread has been consistent across every Duramax generation from 2001 through 2017 (LB7, LLY, LBZ, LMM, and LML). Over 2,700 Duramax owners search for related parts monthly, making this one of the most common upgrades. Whether you have an early LB7 or a late-model LML, this billet screw threads directly into the factory bleeder port with no modifications. If you're also replacing the housing seals, get our rebuild kit which includes this bleeder screw + all 6 seals.
Q: Why billet aluminum over the OEM plastic bleeder screw?
A: The OEM plastic bleeder screw (GM 97363195) is injection-molded nylon that has three known failure modes: (1) The hex head rounds off after 2-3 filter changes because nylon deforms under torque, (2) The threads crack when the aluminum housing thermally expands — nylon and aluminum have different expansion rates, and (3) Heat cycling makes the plastic brittle — under-hood temps on a Duramax routinely exceed 200°F. Our 6061-T6 billet aluminum screw is CNC-machined from solid stock with a Type II anodized finish — the threads match the housing's thermal expansion, the hex head won't round off, and it includes a pre-installed Viton O-ring rated to 400°F. Install once and never touch it again.
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