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Standard Ignition RY-366 HVAC Automatic Temperature Control (ATC) Relay
| Brand | Standard Ignition RY-366 |
|---|---|
| Amperage Rating | 30 A |
| Connector Shape | Square |
| Continuous Duty | No |
| Functions | Relay |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
| Fits | Cadillac and Pontiac · 20 vehicles |
OE-quality manufacturing. Built under stringent quality controls for consistent fit and function.
Composite housing. Helps protect the relay from harsh temperatures and underhood conditions.
Blade terminals. Square connector with brass or copper contacts where specified for extended wear.
Cross-references Davico Mfg 19298, Four Seasons 36133 and Hella 003530001 for the same application. See all 13.
Standard Ignition RY-366 HVAC Relay
Standard Ignition RY-366 is an HVAC automatic temperature control relay built for 12-volt systems that need reliable switching in the climate control circuit. It uses a 4-blade male terminal layout with a square connector shape and a 30 amp amperage rating for direct relay service in the HVAC system.
Key Features
- Part number: RY-366
- HVAC Automatic Temperature Control (ATC) relay
- 12-volt electrical rating
- 30 amp amperage rating
- Square connector shape
- 4-terminal blade design with male terminals
- No continuous duty rating
- No mounting bracket included
Application Details
This Standard Ignition RY-366 relay is used in HVAC control circuits where the temperature control system needs a dependable electrical switching component. It is listed for select Chevrolet Chevy models from 2002-2010, Cadillac Catera models from 1997-2001, and Pontiac LeMans models from 1988-1993. If you are searching for an HVAC relay for a 2002-2010 Chevrolet Chevy, a 1997-2001 Cadillac Catera, or a 1988-1993 Pontiac LeMans, RY-366 is the direct part number to verify against the original relay.
This part cross-references Four Seasons 36133 and Hella 003530001 for the same application.
What It Helps Fix
- HVAC blower or control relay failure
- Intermittent temperature control operation
- No-response climate control switching
- Electrical relay wear from heat and underhood exposure
- Connector or terminal mismatch during relay replacement
Installation Notes
Verify the connector shape, terminal count, terminal type, and amperage rating before installation. Match the relay to the vehicle’s original HVAC relay location and confirm 12-volt system requirements. Because this relay does not include a mounting bracket, reuse the existing mounting arrangement if the vehicle uses one.
Quality Assurance
Standard Ignition manufactures this relay with composite housings for heat resistance and brass or copper contacts where specified for wear resistance. Production is controlled under TS16949 and ISO9001 certified processes to help ensure consistent fit and function across the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2009 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2008 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2007 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2006 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2005 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2004 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2003 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2002 | Chevrolet | Chevy | 1.6L | L4 | N/A | — |
| 2001 | Cadillac | Catera | — | — | N/A | — |
| 2000 | Cadillac | Catera | — | — | N/A | — |
| 1999 | Cadillac | Catera | — | — | N/A | — |
| 1998 | Cadillac | Catera | — | — | N/A | — |
| 1997 | Cadillac | Catera | — | — | N/A | — |
| 1993 | Pontiac | LeMans | — | — | N/A | — |
| 1992 | Pontiac | LeMans | — | — | N/A | — |
| 1991 | Pontiac | LeMans | — | — | N/A | — |
| 1990 | Pontiac | LeMans | — | — | N/A | — |
| 1989 | Pontiac | LeMans | — | — | N/A | — |
| 1988 | Pontiac | LeMans | — | — | N/A | — |
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