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Standard Ignition HR-118 Horn Relay
Reliable Horn Relay for Dodge B and W Series Trucks
The Standard Ignition HR-118 horn relay is designed to provide consistent electrical performance for Dodge B100, B200, B300, D100, D150, D200, D300, Ramcharger, W100, W150, W200, and W300 models. This 12-volt relay ensures proper horn operation by managing current flow efficiently and safely.
- Amperage rating of 20 amps for reliable current handling
- Rectangular connector shape for secure and precise fitment
- Includes mounting bracket(s) for easy installation
- Three male blade terminals for straightforward wiring
- Compatible with 12-volt electrical systems
Technical Details and Compatibility
The HR-118 horn relay from Standard Ignition is engineered to meet the electrical demands of various Dodge truck models, including the B-series, D-series, Ramcharger, and W-series trucks. Its 20 amp amperage rating supports the horn circuit without risk of overload. The rectangular connector shape and three male blade terminals ensure a proper connection with factory wiring harnesses. The included mounting bracket simplifies securing the relay in the engine compartment or fuse box area. Operating at 12 volts, this relay integrates seamlessly with the vehicleโs electrical system.
Common Applications and Problem Resolution
- Restores horn functionality when the relay has failed or is intermittent
- Prevents electrical shorts or blown fuses caused by faulty relays
- Ensures consistent horn sound activation in Dodge B100, D150, Ramcharger, and W300 trucks
- Replaces worn or damaged horn relays to maintain vehicle safety compliance
- Supports troubleshooting of horn circuit electrical issues
Installation Notes and Tips
Before installation, disconnect the vehicle battery to avoid electrical shock or damage. Locate the existing horn relay in the fuse box or relay panel, typically near the engine compartment. Remove the old relay by pulling it straight out, then install the Standard Ignition HR-118 relay by aligning the rectangular connector and blade terminals. Secure the relay using the included mounting bracket to prevent vibration-related disconnections. Reconnect the battery and test the horn operation to confirm proper installation.
Quality Assurance and Warranty
Standard Ignition manufactures the HR-118 horn relay to meet OEM specifications for fit, form, and function. Each relay undergoes quality control testing to ensure reliable electrical performance. While specific warranty details may vary, Standard Ignition products typically include a limited warranty against defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | HR-118 |
| Amperage Rating | 20 A |
| Connector Shape | Rectangular |
| Mounting Bracket(s) Included | Yes |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
This part fits 168 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1979 | Dodge | D100 | N/A | |||
| 1979 | Dodge | D150 | N/A | |||
| 1979 | Dodge | D200 | N/A | |||
| 1979 | Dodge | D300 | N/A | |||
| 1979 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1979 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1979 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1979 | Dodge | W150 | N/A | |||
| 1979 | Dodge | W200 | N/A | |||
| 1979 | Dodge | W300 | N/A | |||
| 1978 | Dodge | D100 | N/A | |||
| 1978 | Dodge | D150 | N/A | |||
| 1978 | Dodge | D200 | N/A | |||
| 1978 | Dodge | D300 | N/A | |||
| 1978 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1978 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1978 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1978 | Dodge | Ramcharger | 6.6L | V8 | N/A | |
| 1978 | Dodge | Ramcharger | 7.2L | V8 | N/A | |
| 1978 | Dodge | W150 | N/A | |||
| 1978 | Dodge | W200 | N/A | |||
| 1978 | Dodge | W300 | N/A | |||
| 1977 | Dodge | B100 | 3.7L | L6 | N/A | |
| 1977 | Dodge | B100 | 5.9L | V8 | N/A | |
| 1977 | Dodge | B100 | 5.2L | V8 | N/A | |
| 1977 | Dodge | B200 | 5.9L | V8 | N/A | |
| 1977 | Dodge | B200 | 3.7L | L6 | N/A | |
| 1977 | Dodge | B200 | 7.2L | V8 | N/A | |
| 1977 | Dodge | B200 | 5.2L | V8 | N/A | |
| 1977 | Dodge | B200 | 6.6L | V8 | N/A | |
| 1977 | Dodge | B300 | 6.6L | V8 | N/A | |
| 1977 | Dodge | B300 | 5.9L | V8 | N/A | |
| 1977 | Dodge | B300 | 7.2L | V8 | N/A | |
| 1977 | Dodge | B300 | 5.2L | V8 | N/A | |
| 1977 | Dodge | B300 | 3.7L | L6 | N/A | |
| 1977 | Dodge | D100 | 3.7L | L6 | N/A | |
| 1977 | Dodge | D100 | 5.9L | V8 | N/A | |
| 1977 | Dodge | D100 | 6.6L | V8 | N/A | |
| 1977 | Dodge | D100 | 7.2L | V8 | N/A | |
| 1977 | Dodge | D100 | 5.2L | V8 | N/A | |
| 1977 | Dodge | D150 | 6.6L | V8 | N/A | |
| 1977 | Dodge | D150 | 5.2L | V8 | N/A | |
| 1977 | Dodge | D150 | 3.7L | L6 | N/A | |
| 1977 | Dodge | D150 | 5.9L | V8 | N/A | |
| 1977 | Dodge | D200 | 7.2L | V8 | N/A | |
| 1977 | Dodge | D200 | 5.9L | V8 | N/A | |
| 1977 | Dodge | D200 | 3.7L | L6 | N/A | |
| 1977 | Dodge | D200 | 5.2L | V8 | N/A | |
| 1977 | Dodge | D200 | 6.6L | V8 | N/A | |
| 1977 | Dodge | D300 | 6.6L | V8 | N/A | |
| 1977 | Dodge | D300 | 7.2L | V8 | N/A | |
| 1977 | Dodge | D300 | 5.2L | V8 | N/A | |
| 1977 | Dodge | D300 | 3.7L | L6 | N/A | |
| 1977 | Dodge | D300 | 5.9L | V8 | N/A | |
| 1977 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1977 | Dodge | Ramcharger | 7.2L | V8 | N/A | |
| 1977 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1977 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1977 | Dodge | Ramcharger | 6.6L | V8 | N/A | |
| 1977 | Dodge | W100 | 3.7L | L6 | N/A | |
| 1977 | Dodge | W100 | 5.9L | V8 | N/A | |
| 1977 | Dodge | W100 | 6.6L | V8 | N/A | |
| 1977 | Dodge | W100 | 7.2L | V8 | N/A | |
| 1977 | Dodge | W100 | 5.2L | V8 | N/A | |
| 1977 | Dodge | W150 | 5.9L | V8 | N/A | |
| 1977 | Dodge | W150 | 6.6L | V8 | N/A | |
| 1977 | Dodge | W150 | 5.2L | V8 | N/A | |
| 1977 | Dodge | W200 | 6.6L | V8 | N/A | |
| 1977 | Dodge | W200 | 3.7L | L6 | N/A | |
| 1977 | Dodge | W200 | 5.9L | V8 | N/A | |
| 1977 | Dodge | W200 | 7.2L | V8 | N/A | |
| 1977 | Dodge | W200 | 5.2L | V8 | N/A | |
| 1977 | Dodge | W300 | 5.9L | V8 | N/A | |
| 1977 | Dodge | W300 | 6.6L | V8 | N/A | |
| 1977 | Dodge | W300 | 7.2L | V8 | N/A | |
| 1977 | Dodge | W300 | 5.2L | V8 | N/A | |
| 1977 | Dodge | W300 | 3.7L | L6 | N/A | |
| 1976 | Dodge | B100 | 5.9L | V8 | N/A | |
| 1976 | Dodge | B100 | 3.7L | L6 | N/A | |
| 1976 | Dodge | B100 | 5.2L | V8 | N/A | |
| 1976 | Dodge | B200 | 6.6L | V8 | N/A | |
| 1976 | Dodge | B200 | 3.7L | L6 | N/A | |
| 1976 | Dodge | B200 | 7.2L | V8 | N/A | |
| 1976 | Dodge | B200 | 5.2L | V8 | N/A | |
| 1976 | Dodge | B200 | 5.9L | V8 | N/A | |
| 1976 | Dodge | B300 | 6.6L | V8 | N/A | |
| 1976 | Dodge | B300 | 3.7L | L6 | N/A | |
| 1976 | Dodge | B300 | 5.9L | V8 | N/A | |
| 1976 | Dodge | B300 | 5.2L | V8 | N/A | |
| 1976 | Dodge | B300 | 7.2L | V8 | N/A | |
| 1976 | Dodge | D100 | 5.9L | V8 | N/A | |
| 1976 | Dodge | D100 | 7.2L | V8 | N/A | |
| 1976 | Dodge | D100 | 5.2L | V8 | N/A | |
| 1976 | Dodge | D100 | 6.6L | V8 | N/A | |
| 1976 | Dodge | D100 | 3.7L | L6 | N/A | |
| 1976 | Dodge | D200 | 6.6L | V8 | N/A | |
| 1976 | Dodge | D200 | 5.9L | V8 | N/A | |
| 1976 | Dodge | D200 | 3.7L | L6 | N/A | |
| 1976 | Dodge | D200 | 5.2L | V8 | N/A | |
| 1976 | Dodge | D200 | 7.2L | V8 | N/A | |
| 1976 | Dodge | D300 | 3.7L | L6 | N/A | |
| 1976 | Dodge | D300 | 7.2L | V8 | N/A | |
| 1976 | Dodge | D300 | 5.2L | V8 | N/A | |
| 1976 | Dodge | D300 | 5.9L | V8 | N/A | |
| 1976 | Dodge | D300 | 6.6L | V8 | N/A | |
| 1976 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1976 | Dodge | Ramcharger | 7.2L | V8 | N/A | |
| 1976 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1976 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1976 | Dodge | W100 | 5.2L | V8 | N/A | |
| 1976 | Dodge | W100 | 7.2L | V8 | N/A | |
| 1976 | Dodge | W100 | 3.7L | L6 | N/A | |
| 1976 | Dodge | W100 | 6.6L | V8 | N/A | |
| 1976 | Dodge | W100 | 5.9L | V8 | N/A | |
| 1976 | Dodge | W200 | 6.6L | V8 | N/A | |
| 1976 | Dodge | W200 | 5.2L | V8 | N/A | |
| 1976 | Dodge | W200 | 5.9L | V8 | N/A | |
| 1976 | Dodge | W200 | 3.7L | L6 | N/A | |
| 1976 | Dodge | W200 | 7.2L | V8 | N/A | |
| 1976 | Dodge | W300 | 7.2L | V8 | N/A | |
| 1976 | Dodge | W300 | 6.6L | V8 | N/A | |
| 1976 | Dodge | W300 | 5.9L | V8 | N/A | |
| 1976 | Dodge | W300 | 5.2L | V8 | N/A | |
| 1976 | Dodge | W300 | 3.7L | L6 | N/A | |
| 1975 | Dodge | B100 | 3.7L | L6 | N/A | |
| 1975 | Dodge | B100 | 5.2L | V8 | N/A | |
| 1975 | Dodge | B200 | 7.2L | V8 | N/A | |
| 1975 | Dodge | B200 | 5.9L | V8 | N/A | |
| 1975 | Dodge | B200 | 5.2L | V8 | N/A | |
| 1975 | Dodge | B200 | 3.7L | L6 | N/A | |
| 1975 | Dodge | B300 | 7.2L | V8 | N/A | |
| 1975 | Dodge | B300 | 5.9L | V8 | N/A | |
| 1975 | Dodge | B300 | 5.2L | V8 | N/A | |
| 1975 | Dodge | B300 | 3.7L | L6 | N/A | |
| 1975 | Dodge | D100 | 5.2L | V8 | N/A | |
| 1975 | Dodge | D100 | 3.7L | L6 | N/A | |
| 1975 | Dodge | D100 | 7.2L | V8 | N/A | |
| 1975 | Dodge | D100 | 5.9L | V8 | N/A | |
| 1975 | Dodge | D200 | 6.6L | V8 | N/A | |
| 1975 | Dodge | D200 | 7.2L | V8 | N/A | |
| 1975 | Dodge | D200 | 5.2L | V8 | N/A | |
| 1975 | Dodge | D200 | 5.9L | V8 | N/A | |
| 1975 | Dodge | D200 | 3.7L | L6 | N/A | |
| 1975 | Dodge | D300 | 7.2L | V8 | N/A | |
| 1975 | Dodge | D300 | 5.9L | V8 | N/A | |
| 1975 | Dodge | D300 | 3.7L | L6 | N/A | |
| 1975 | Dodge | D300 | 5.2L | V8 | N/A | |
| 1975 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1975 | Dodge | Ramcharger | 7.2L | V8 | N/A | |
| 1975 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1975 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1975 | Dodge | W100 | 5.2L | V8 | N/A | |
| 1975 | Dodge | W100 | 7.2L | V8 | N/A | |
| 1975 | Dodge | W100 | 6.6L | V8 | N/A | |
| 1975 | Dodge | W100 | 5.9L | V8 | N/A | |
| 1975 | Dodge | W100 | 3.7L | L6 | N/A | |
| 1975 | Dodge | W200 | 7.2L | V8 | N/A | |
| 1975 | Dodge | W200 | 3.7L | L6 | N/A | |
| 1975 | Dodge | W200 | 5.9L | V8 | N/A | |
| 1975 | Dodge | W200 | 5.2L | V8 | N/A | |
| 1975 | Dodge | W300 | 7.2L | V8 | N/A | |
| 1975 | Dodge | W300 | 3.7L | L6 | N/A | |
| 1975 | Dodge | W300 | 5.9L | V8 | N/A | |
| 1975 | Dodge | W300 | 5.2L | V8 | N/A | |
| 1974 | Dodge | Ramcharger | 3.7L | L6 | N/A | |
| 1974 | Dodge | Ramcharger | 5.9L | V8 | N/A | |
| 1974 | Dodge | Ramcharger | 5.2L | V8 | N/A | |
| 1974 | Dodge | Ramcharger | 7.2L | V8 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.