Description
Comparison points and tradeoffs
When comparing 12177236 7236 Relay (Pack of 2) – 12VDC 40A 4-Pin SPST Automotive Relay – Compatible with General Motors Vehicles – Quick Connect Terminals with other Accessory Power options, use this source-backed detail as the primary discriminator: Package Dimensions : 2.36 x 1.57 x 1.57 inches; 0.96 ounces.
Use this second fact to evaluate the tradeoff: Product identity: 12177236 7236 Relay (Pack of 2) – 12VDC 40A 4-Pin SPST Automotive Relay – Compatible with General Motors Vehicles – Quick Connect Terminals. A third point to compare across alternatives is: Not compatible with vehicles requiring different relay configurations or current ratings.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
- Package Dimensions
:
2.36 x 1.57 x 1.57 inches; 0.96 ounces - Date First Available
:
August 26, 2025 - Manufacturer
:
Formiden - ASIN
:
B0FNQWJL9L - Best Sellers Rank: #528,267 in Automotive (See Top 100 in Automotive)
- #1,034 in Automotive Replacement Accessory Power Relays
OE-Compliant Automotive Relay
This 12VDC 40A 4-pin SPST relay provides reliable circuit control for General Motors vehicles. Engineered to meet original equipment specifications, it ensures proper operation of electrical systems requiring high-current switching capabilities.
Technical Specifications
Voltage Rating: 12VDC
Current Capacity: 40A maximum
Contact Configuration: SPST (1 Form A)
Terminal Type: 4-pin quick-connect
Operating Temperature: -40°C to 125°C
Contact Material: Silver alloy
Primary Applications
Fuel pump control circuits
Radiator cooling fan operation
Headlight and auxiliary lighting systems
Horn and accessory power control
Aftermarket equipment installation
Compatibility Information
Replaces OEM part numbers:
12177236 7236
Installation Notes
Verify existing relay specifications before installation
Disconnect negative battery terminal before servicing
Match pin configuration to original relay orientation
Ensure proper seating in relay socket
Test system operation before final reassembly
Package Includes
1 × 12177236 7236 12VDC 40A 4-Pin SPST Relay
Important Compatibility Notice
Confirm your vehicle’s original relay part number and electrical specifications before purchase. Compatibility limited to systems designed for 4-pin SPST relays with 40A capacity. Not compatible with vehicles requiring different relay configurations or current ratings.
Source product highlights
- 40A High-Current Capacity: Rated for 40A at 12VDC, providing reliable switching for automotive applications including fuel pumps, cooling fans, and lighting systems.
- Verified Vehicle Compatibility: Designed to replace OEM part number 12177236 (7236) in General Motors vehicles requiring 4-pin SPST relays. (See the picture for details)
- SPST Quick-Connect Design: Single Pole Single Throw configuration with 6.3mm quick-connect terminals for secure electrical connections and easy installation.
- Durable Construction: Features thermoplastic housing and corrosion-resistant terminals suitable for under-hood environments (-40°C to 125°C operating range).
- Direct OEM Replacement: Matches original relay dimensions and electrical specifications for plug-and-play installation without modifications.
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