Yutong Bus Low Pressure Alarm Brake Light Switch 3757-00037 VK691-5538Z2

Product Specification

Payment Terms	T/T	Supply Ability	5000/month
Delivery Time	5-15day	Packaging Details	Carton, wooden box, custom packaging
Alarm methods	Acoustic and optical alarm	Installation method	Threaded connection
Operating temperature	-45℃ - +90℃	Barometric pressure measurement range	0 - 1.2MPa
service life	≥8 years	Operating voltage	24V DC
Standby current	≤10mA	Alarm current	≤50mA
Protection level	IP68	Recovery time	≤5s
Brand Name	Dingguan	Model Number	3757-00037/VK691-5538Z2
Certification	ISO 9001+IATF 16949	Place of Origin	Nanjing, China
High Light	Low Pressure Brake Alarm Switch 3757-00037 ，Acoustic Optical Bus Pressure Switch ，1.2MPa Brake Light Switch VK691-5538Z2

Low Air Pressure Alarm & Brake Light Switch for Yutong Buses | P/N: 3757-00037 / VK691-5538Z2 Product Description A Critical Component for Uncompromised Brake System Safety. In the demanding world of public and commercial transport, the integrity of a bus’s pneumatic brake system is paramount. Nanjing Dingguan Accessories Co., Ltd. manufactures and supplies this high-quality, dual-function Low Air Pressure Alarm and Brake Light Switch, an essential replacement part for Yutong buses. This single, robust unit performs two vital safety functions. As a low air pressure sensor, it continuously monitors the vehicle’s brake system. If the air pressure drops below the safe operating threshold, it instantly triggers a warning alarm, alerting the driver to a potential brake system fault before it becomes a critical failure. Simultaneously, it serves as a highly responsive brake light switch. Upon application of the brake pedal, it ensures the immediate and reliable activation of the rear brake lights, providing a clear signal to other vehicles and drastically reducing the risk of rear-end collisions. Key Features: Dual-Function Design: Combines a low-pressure alarm and brake light switch into one efficient, cost-effective component. Direct OEM Replacement: Engineered as a reliable substitute for Yutong part numbers 3757-00037 and VK691-5538Z2, guaranteeing a seamless fit and function. Enhanced Safety: Provides critical early warnings and ensures brake light reliability. Durable Construction: Built to withstand the rigors of daily commercial use for long-lasting, dependable performance. As a direct manufacturer, Nanjing Dingguan Accessories Co., Ltd. delivers advanced quality and value. Ensure the safety and reliability of your fleet with parts you can trust. Contact us today for a competitive quotation or to learn more about our extensive catalog of bus components. Product Name: Low pressure alarm Part Number; 3757-00037/VK691-5538Z2 Quality control: ISO 9001+IATF 16949 Size: Z3/8,OFF>0.52MPa>ON Type: sensor Place of origin: Nanjing, China Materials: aluminum alloy Packaging: Paper packaging/custom packaging Minimum order quantity: 1 Application: bus Status: brand new Cargo transportation: TNT, EMS, UPS, FedEx, DHL or according to your requirements. OE: 3757-00037/VK691-5538Z2 Factory quality inspection: 100% inspection Product details pictures How to buy the right bus accessories 1.Please provide VIN number 2.Please provide clear photos 3.Please provide the OEM number 4.lf you are unsure, please contact us. Nanjing Dingguan Auto Parts Co., Ltd. -- Your reliable partner for bus spare parts. About Us Nanjing Dingguan Automotive Parts Co., Ltd. specializes in providing high-quality and cost-effective parts for buses and commercial vehicles. We focus on the global market, have rich experience in exporting bus and truck parts, provide services to distributors and fleet operators, and provide tailor-made solutions to meet different needs. Warehouse and cargo display About shipping and packaging transportation TNT, EMS, UPS, FedEx, DHL or as per your requirement. packaging Bubble wrap, cartons, wooden boxes, and pallets are used to avoid damage to goods caused by bumps. common problem 1: Can you provide an accurate price? Sure. You need to provide the vehicle VIN number, provide the product OEM code, or provide a clear product photo. 2: What's your minimum order quantity? No minimum order quantity, of course, if you buy more items from our company, you can get preferential prices and discounts. 3: What's the delivery time? Air freight orders take 5 to 8 days. Sea freight orders take 15 to 25 days. My advantage 1:High-Quality Bus Components Specialized in high-grade aftermarket bus parts including engines,transmissions, and braking systems, built for durability and performance. 2:Comprehensive spare parts solution We offer a full range of bus accessories: filters, suspension components, electrical components, and interior accessories for all major bus brands. 3: ISO-Certified Manufacturing Our ISO 9001/TS 16949-certified products ensure strict quality control, reliability, and compliance with international standards.ISO 4: Global Bus Part Coverage Our products are compatible with trusted bus models from Europe, Asia, and the Americas. 5;Extensive product catalog Engine parts, HVAC systems, lighting, wheels and safety components covering city, intercity and long-distance buses. Contact Us