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Standard Ignition ALS3661 ABS Wheel Speed Sensor - Rear Right
| Brand | Standard Ignition ALS3661 |
|---|---|
| Position | Rear Right |
| Mounting Hardware Included | No |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
| Connector Quantity | 1 |
| Connector Shape | Octagon |
| Dust Shield Included | No |
| Harness Length - inches | 48 |
| Harness Length - mm | 1219 |
| Mounting Location | Spindle |
| Mounting Type | Bolt mount |
| Number of Bolt Holes | 3 |
| Terminal Type | Mini-blade |
| Wiring Harness Included | Yes |
| Fits | Chevrolet and GMC · 10 vehicles |
Bolt-mount design. Installs securely with a three-hole mounting pattern.
Wiring harness included. Comes ready with a 48-inch harness for easier installation.
Mini-blade terminals. Uses a female connector with male terminals for a reliable connection.
Cross-references 534049, 84609177 and ABS3661 for the same application. See all 4.
ABS Wheel Speed Sensor for Rear Right Service
Standard Ignition ALS3661 is an ABS wheel speed sensor for the rear right position on select heavy-duty Chevrolet and GMC trucks. It is built with a 48-inch harness, a single female connector, and a bolt-mount spindle design for direct replacement service.
Key Features
- ABS wheel speed sensor for rear right applications
- Fits 2020-2024 Chevrolet Silverado 3500 HD, rear right
- Fits 2020-2024 GMC Sierra 3500 HD, rear right
- 48-inch harness with wiring harness included
- 2-terminal design with mini-blade terminals
- Single octagon-shaped female connector
- Bolt-mount installation at the spindle with 3 bolt holes
- Standard Ignition ALS3661 replacement sensor
Detailed Description
Standard Ignition ALS3661 is an ABS wheel speed sensor engineered for rear right placement on 2020-2024 Chevrolet Silverado 3500 HD and 2020-2024 GMC Sierra 3500 HD models. The sensor uses a spindle-mounted, bolt-on design with a 48-inch harness to reach the factory connection point, while the octagon connector and mini-blade terminals support a direct electrical interface. This part number, ALS3661, is a practical replacement choice when servicing the rear wheel speed signal on these heavy-duty trucks. This part cross-references Monroe Shocks & Struts (e.g., 534049, 84609177) for the same application.
Common Issues This Part Can Address
- ABS warning light triggered by a failed rear wheel speed sensor
- Intermittent or missing wheel speed signal at the rear right wheel
- ABS system fault codes related to the rear right sensor circuit
- Brake control concerns caused by damaged sensor wiring or connector wear
- Loss of accurate wheel speed input on Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD trucks
Installation Notes and Tips
Verify rear right placement before installation and compare the connector, terminal style, and harness length to the original sensor. The spindle-mounted, bolt-mount design uses three bolt holes and does not include mounting hardware or a dust shield. Inspect the wheel end, harness routing, and connector condition before final assembly to help ensure a clean repair on the Silverado 3500 HD or Sierra 3500 HD.
Quality Assurance
Standard Ignition supplies replacement electrical and sensor components for automotive service applications. ALS3661 is built to match the listed fitment and connection style for 2020-2024 Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD rear right ABS sensor service.
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2024 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2024 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2023 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2023 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2022 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2022 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2021 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2021 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2020 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear Right | — |
| 2020 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear Right | — |
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