Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands Shop All Vehicles

  2. Auto Parts
  3. Lighting and Electrical
  4. Relays
  5. Trailer Tow Relay
  6. Airtex 1R3321

Airtex 1R3321 Trailer Tow Relay

Airtex 1R3321 Trailer Tow Relay

Airtex
Brand:Airtex
Part Number: 1R3321
UPC: 080044976875
Weight: 0.32 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Airtex 1R3321 Trailer Tow Relay for your vehicle. Buy now and secure your purchase online!

Multi-Purpose Relays are used to control electrical circuits for components on a vehicle that have a high amperage load such as headlights, fuel pumps and cooling fans. A malfunctioning or inoperative Multi-Purpose Relay will cause a component to not function or function intermittently. Depending on which circuit is affected, a failed Multi-Purpose Relay could cause a no-start condition, proper vehicle operation and impaired safety systems. When diagnosing a failed a Multi-Purpose Relay the corresponding fuse should be checked as well as verification that the amperage draw of the component on the circuit is within factory specs.

Specifications:

Connector Gender:
Female
Cover Material:
Plastic
Mounting Bracket Included:
No
Mounting Hardware Included:
No
Terminal Gender:
Male
Terminal Quantity:
6
Terminal Type:
Blade
Voltage:
12.0 Volts (Direct Current)
Country of Origin:
US

Select a vehicle to narrow Airtex 1R3321 Trailer Tow Relay fitment info!

Last Updated: 11/09/2018

Years Vehicle Per Vehicle Fit NotesFitment Notes

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 
Cadillac Escalade

6.2L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade



6.2L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
Cadillac Escalade

6.0L V8 Electric/Flex OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade



6.0L V8 Electric/Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2009

 
Cadillac Escalade

6.0L V8 Electric/Gas OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade



6.0L V8 Electric/Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2008

 

2008

 
Cadillac Escalade

6.2L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade



6.2L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 

2014

 

2013

 

2012

 

2011

 

2010

 

2009

 
Cadillac Escalade ESV

6.2L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade ESV



6.2L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2008

 

2008

 
Cadillac Escalade ESV

6.2L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade ESV



6.2L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2012

 

2011

 

2010

 

2009

 

2012

 

2011

 

2010

 

2009

 
Cadillac Escalade EXT

6.2L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade EXT



6.2L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2008

 

2008

 
Cadillac Escalade EXT

6.2L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

Cadillac Escalade EXT



6.2L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
Chevrolet Avalanche

5.3L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Avalanche



5.3L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2008

 

2009

 

2008

 
Chevrolet Avalanche

5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Avalanche



5.3L V8 Gas OHV,
6.0L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
Chevrolet Silverado 1500

4.8L V8 Flex OHV,
6.0L V8 Electric/Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 1500



4.8L V8 Flex OHV,
6.0L V8 Electric/Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
Chevrolet Silverado 1500

6.2L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 1500



6.2L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
Chevrolet Silverado 1500

4.3L V6 Gas OHV,
5.3L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 1500



4.3L V6 Gas OHV,
5.3L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2009

 
Chevrolet Silverado 1500

6.0L V8 Electric/Gas OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 1500



6.0L V8 Electric/Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2008

 

2009

 

2008

 
Chevrolet Silverado 1500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 1500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2013

 
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 2500 HD



6.0L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 3500 HD



6.0L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
Chevrolet Silverado 3500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Trailer Brake Control Relay
 

Chevrolet Silverado 3500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
GMC Sierra 1500

4.8L V8 Flex OHV,
6.0L V8 Electric/Flex OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



4.8L V8 Flex OHV,
6.0L V8 Electric/Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2013

 

2012

 

2011

 

2010

 

2009

 
GMC Sierra 1500

6.2L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



6.2L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
GMC Sierra 1500

4.3L V6 Gas OHV,
5.3L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



4.3L V6 Gas OHV,
5.3L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2009

 
GMC Sierra 1500

6.0L V8 Electric/Gas OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



6.0L V8 Electric/Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2009

 

2008

 

2009

 

2008

 
GMC Sierra 1500

4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



4.8L V8 Gas OHV,
5.3L V8 Gas OHV,
6.0L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2008

 

2008

 
GMC Sierra 1500

6.2L V8 Gas OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 1500



6.2L V8 Gas OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2013

 
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
GMC Sierra 2500 HD

6.0L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 2500 HD



6.0L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Trailer Brake Control Relay
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2013

 

2012

 

2011

 

2010

 
GMC Sierra 3500 HD

6.0L V8 Flex OHV
1
 
Trailer Brake Control Relay
 

GMC Sierra 3500 HD



6.0L V8 Flex OHV Trailer Brake Control Relay

1 Per Vehicle

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 

2013

 

2012

 

2011

 

2010

 

2009

 

2008

 
GMC Sierra 3500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Trailer Brake Control Relay
 

GMC Sierra 3500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo Trailer Brake Control Relay

1 Per Vehicle