Replacement Series Parallel Switch Solenoid for DELCO 1119845 Engine Starting Systems - 12/24V 1500 Amp

Replacement for DELCO 1119845 series parallel switch solenoid 12/24V 1500 Amp used in engine starting and charging systems. This part provides the 7-terminal double-stage push-button actuator design for manual operation across compatible DELCO and other systems. Engine operators and fleet technicians rely on this heavy-duty component to deliver consistent power transfer between series and parallel battery configurations during cranking cycles. The robust construction withstands vibration, temperature extremes, and high current loads common in industrial and heavy equipment environments. Its double-stage mechanism ensures smooth transition between voltage modes while the manual push-button actuator allows quick override when needed for diagnostics or emergency starts. Manufactured to match original equipment tolerances, the switch maintains reliable contact pressure and low resistance across all terminals, reducing voltage drop and heat buildup that can shorten service life. Installation is straightforward for experienced technicians using standard tools and following the existing wiring harness. Once fitted, the unit integrates seamlessly with charging circuits to support alternator output and battery isolation functions. Regular inspection of terminal connections helps maintain peak performance over thousands of operating hours. This solenoid is an essential service part for maintaining uptime on construction, agricultural, and mining equipment where dependable starting is critical to daily operations. Built with silver alloy contacts for conductivity and durability, it handles extreme duty cycles without failure. Operators appreciate the precise engineering that matches OEM specifications exactly, eliminating compatibility concerns during replacement.

Key Features & Benefits

• Operates at 12/24V with 1500 Amp capacity for starting system demands
• Features 7-terminal double-stage configuration with push-button actuator
• Supports manual operation in engine starting and charging applications
• Designed for multi-application compatibility with DELCO and additional systems

Product Specifications

• Contact material: silver alloy for low resistance and long life
• Current rating: 1500 Amp
• Terminal configuration: 7-terminal double-stage
• Actuator type: push-button manual operation
• Replaces OEM: 1119899, 10457007, 1119845A, 9L-4590, V1091651, 144202, 3603872RX, WIL60-01-3555, SDR6027, 240-12001, 245-52000, SOL0502, 18-5847, 60-01-3555

Replacement Compatibility

This switch solenoid fits Caterpillar 3304 and 3306 models along with additional multi-application engine starting and charging systems from DELCO and compatible manufacturers. Users in demanding sectors benefit from its proven reliability and straightforward integration into existing setups.

Discover the Perfect Replacement

Browse our selection of replacement solenoid switches to locate the exact match for your 12/24V 1500 Amp application requirements and complete your order.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.