SKU: BFH-6LINEWRENCH | UPC: 700424676415
Cobb -6AN Fitting Wrench Universal FH-6LINEWRENCH
The Cobb FH-6LINEWRENCH delivers exact fit for -6AN hex fittings on fuel lines, oil lines, and coolant lines in any automotive performance setup. This compact open-end wrench removes and installs fittings without rounding or stripping, essential for clean builds on turbo kits, fuel systems, and more. Precision-machined from billet aluminum, it ensures reliable torque on braided or hard lines.
Key Features
- Exact -6AN Sizing: 11/16-inch open-end matches -6AN hex perfectly for secure engagement
- Billet 6061-T6 Aluminum: Lightweight at 4 oz, strong construction with Type III black anodized finish resists corrosion
- Knurled Non-Slip Grip: Textured handle provides firm control, even with oily hands or gloves during installs
- Damage Prevention: Replaces adjustable wrenches to avoid marring or rounding expensive AN fittings
- Compact 4.75-Inch Length: Maneuvers in tight engine bays for easy access on fuel rails, turbo lines, and regulators
Product Notes
- Universal compatibility with any -6AN fittings on fuel, oil, coolant, nitrous, or brake systems
- Clean with mild soap; avoid harsh chemicals to maintain anodized finish
- Ships in protective Cobb retail packaging, ready for immediate use
Installation Notes
- Professional installation recommended.
- Use during AN line assembly; apply steady torque to avoid over-tightening
- Compatible with all standard -6AN swage or flare fittings; no adapters needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All Vehicles | with -6AN Fittings |
| 2002-2021 | Subaru | WRX / STI | All |
| 2004-2014 | Subaru | Legacy / Forester | XT / GT |
| 2007-2020 | Subaru | Impreza | All Turbo |
Why Choose Cobb?
- Tools built by Subaru and performance experts for real-world race and street use
- USA-made with premium materials for long-term reliability in shops
- Engineered for precision fit on high-pressure AN systems
Frequently Asked Questions
-
Q: Does this fit Subaru WRX/STI fuel systems?
A: Yes, perfect for -6AN lines on Cobb flex fuel kits, Walbro pumps, and turbo setups. -
Q: What material and finish on the wrench?
A: 6061-T6 billet aluminum with durable black Type III hard anodizing. -
Q: Lifetime warranty details and install?
A: Limited lifetime against defects; simple hand tool, no vehicle mods required.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Official Cobb retail box, 6 x 3 x 1 inches
- Weight: 4 oz product, 0.4 lbs shipping
COBB
COBB Tuning parts for turbocharged performance platforms are stocked at Black Ops Auto Works. Shop the Accessport ECU programmer, cold air intakes, cat back exhaust systems, and supporting hardware engineered for Subaru WRX and STI, Ford Focus ST and RS, Ford F-150 EcoBoost, Mazdaspeed3 and 6, Nissan GT-R, Porsche, BMW, and Volkswagen platforms. Every product is filterable by year, make, model, and trim so the correct part ships the first time. Black Ops Auto Works carries 372 COBB SKUs across tuning, intake, and exhaust categories. What This Brand Covers COBB Tuning built its reputation on the Accessport, one of the most widely used ECU flash tools in the aftermarket, and has expanded into intakes, exhausts, downpipes, and supporting hardware for a range of turbocharged platforms. The catalog centers on a defined group of import and Euro performance vehicles rather than a single brand family. Brand Focus COBB Tuning parts are engineered primarily for Subaru, Ford, Mazda, Nissan...
View COBB Products
Fabrication
Shop Fabrication Parts and Materials at Black Ops Auto Works for stainless steel tubing, titanium tubing, aluminum charge piping, mandrel bends, V-band clamps, flanges, merge collectors, AN fittings, PTFE hose kits, braided fuel and oil lines, heat shields, welding supplies, brackets, bungs, and hardware for building custom exhaust systems, turbo plumbing, intercooler piping, and fuel system routing. Start with tubing in stainless, titanium, or aluminum in the right diameter and wall thickness, then add mandrel bends, flanges, V-bands, and clamps to complete the joint work. Black Ops Auto Works carries 5,866 fabrication SKUs from Vibrant Performance, Ticon Industries, Stainless Bros, Radium Engineering, Fragola, DEI, and ATP Turbo. Why Custom Fabrication Custom fabrication solves fitment problems that no universal or pre-bent kit can address. Raw tubing, flanges, and fittings give the fabricator freedom to route exhaust around a turbo, snake charge pipe around accessories, hard-...
View Fabrication Products
Tools
Automotive tools and install accessories for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop wheel and suspension spanner wrenches, coilover tools, clutch alignment tools, crank pulley tools, jack pads, toe gauges, fluid extractors, and mechanic mats for shops and home garages working on Hellcat, Trackhawk, TRX, WRX, Subaru BRZ, Miata, and general import and domestic platforms. Every product is filterable by brand, tool type, and application so the correct tool ships the first time. Black Ops Auto Works carries 372 tool SKUs across install tools, alignment tools, wrenches, gauges, and shop accessories. What This Collection Covers This Tools collection gathers the specialty install and service tools that suspension, wheel, and engine brands design specifically for their own hardware. Instead of generic hand tools, these are purpose built spanner wrenches, alignment tools, and gauges that make a job faster and reduce the risk of damaging expensive parts dur...
View Tools Products


