{"product_id":"hydraulic-brake-line-lock-manual-park-lock-cars-trucks","title":"Hydraulic Brake Line Lock Manual Park Lock for Cars \u0026 Trucks","description":"\n\u003ch2\u003eHydraulic Brake Line Lock – Manual Park Lock Pressure Holder for Cars \u0026amp; Trucks\u003c\/h2\u003e\n\u003cp\u003eTake full control of your vehicle's braking system with this heavy-duty \u003cstrong\u003eHydraulic Brake Line Lock\u003c\/strong\u003e. Designed for cars and trucks with disc or drum brakes, this compact iron-bodied unit uses hydraulic line pressure to hold your brakes securely in place — no foot pressure required. Whether you're performing brake work, doing track prep, or need a reliable manual hold, this brake lock delivers consistent, stable performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fitment:\u003c\/strong\u003e Compatible with cars and trucks using disc or drum brake systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydraulic Pressure Hold:\u003c\/strong\u003e Locks brake pressure via the hydraulic line — no mechanical ratchets or friction pads needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Iron Construction:\u003c\/strong\u003e Built to meet strict material standards for long-lasting reliability and stable performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpare Sealing Ring Included:\u003c\/strong\u003e Comes with one extra sealing ring for easy future maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation Instructions Included:\u003c\/strong\u003e Step-by-step guide makes setup straightforward even for first-timers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Small footprint makes it easy to mount in tight spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% Brand New\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIron\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.2 × 2.6 × 7.2 cm (approx. 2.05 × 1.02 × 2.83 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 176 g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInlet Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/8 in NPT (connects to master brake cylinder; includes 3\/16 in brake line fitting)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutlet Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/8 in NPT (connects to rear brakes; includes 3\/16 in brake line fitting)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCars \u0026amp; trucks — disc or drum brakes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Operate\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eStep on the brake pedal to build hydraulic pressure.\u003c\/li\u003e\n  \u003cli\u003ePush down the knob on the Brake Lock to engage the hold.\u003c\/li\u003e\n  \u003cli\u003eRelease the foot brake — the system remains locked.\u003c\/li\u003e\n  \u003cli\u003eTo release: press the foot brake again and the lock opens automatically.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eMount the brake lock in a suitable location using the two provided mounting holes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInlet (1\/8 in NPT):\u003c\/strong\u003e Connect to the master brake cylinder. Use the included 3\/16 in fitting if needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutlet (1\/8 in NPT):\u003c\/strong\u003e Connect to the rear brakes. Use the included 3\/16 in fitting if needed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Hydraulic Brake Line Lock\u003c\/li\u003e\n  \u003cli\u003e1 × Spare Sealing Ring\u003c\/li\u003e\n  \u003cli\u003e1 × Installation Instruction Sheet\u003c\/li\u003e\n  \u003cli\u003e2 × 3\/16 in Brake Line Fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e⚠️ \u003cstrong\u003eNot intended for emergency braking, unintended use, or extended long-duration brake holds.\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003ePlease allow ±0.5–1 cm variance due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eActual product color may vary slightly from images due to monitor display differences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general automotive safety guidance, visit the U.S. Consumer Product Safety Commission (CPSC) for product and vehicle safety standards.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Is this hydraulic brake line lock compatible with both disc and drum brake systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — this brake line lock is designed to work with both disc and drum brake systems on cars and trucks. The 1\/8 in NPT inlet and outlet ports, along with the included 3\/16 in brake line fittings, give you flexible compatibility across a wide range of vehicles.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the hydraulic brake line lock hold pressure without the foot pedal?\u003c\/h4\u003e\n\u003cp\u003eA: Once you step on the brake pedal to build hydraulic pressure in the line, pressing down the lock knob traps that pressure, keeping the brakes engaged. The lock releases automatically as soon as you press the brake pedal again — no manual release lever needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I install this brake line lock myself, or do I need a professional?\u003c\/h4\u003e\n\u003cp\u003eA: The unit comes with an installation instruction sheet and the process involves connecting it inline between the master brake cylinder and the rear brakes using the two NPT ports. Many DIY enthusiasts install it successfully, but if you are not familiar with hydraulic brake line work, we recommend having a qualified mechanic perform or verify the installation to ensure brake system integrity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the inlet\/outlet thread size, and are fittings included?\u003c\/h4\u003e\n\u003cp\u003eA: Both the inlet and outlet ports are 1\/8 in NPT (National Pipe Thread). The package includes two 3\/16 in brake line fittings so you can adapt to standard brake line sizes right out of the box.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this hydraulic brake line lock compatible with both disc and drum brake systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — this brake line lock is designed to work with both disc and drum brake systems on cars and trucks. 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