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Product Summary

Universal Fit, Spade Terminal Type, 12 volts Voltage

  • This heavy duty relay takes the heavy amp load off the switch thus preventing an overheated circuit and a possible wiring harness fire
  • Works well with electric fans and horn circuits too
See more details

Key Specs

MFG. Part #91064109
BrandSpeedway Motors
Terminal TypeSpade
Voltage12 volts
Amperage40 amps
See more specs

Need To Know

Quick and Easy Returns

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Speedway Motors 91064109 Details

This heavy duty relay takes the heavy-amp load off the switch, thus preventing an overheated circuit and a possible wiring harness fire. Works well with electric fans and horn circuits too. 40 amp relay.

The wiring for the relay is as follows:

  • Short Red Wire (from relay post 87) = power lead to horn or fan
  • Long Red Wire (from relay post 30) = main power supply in
  • Short Black Wire (from relay post 85) = makes ground connection thru a temp sensitive switch or a grounding horn button
  • Long Gray Wire (from relay post 86) = connects to switched 12 volt power (like ignition switch) so horn or fan turns on/off with key

Includes relay, circuit breaker, wire, terminals and instructions.

Charts

Speedway Motors 91064109 Specifications

KEY SPECS
MFG. Part #91064109
BrandSpeedway Motors
Terminal TypeSpade
Voltage12 volts
Amperage40 amps
GENERAL
PoleSingle
Sold in QuantityEach
NotesIncludes relay, pre-wired plug, and circuit breaker.

Ratings & Reviews

4.9

42 Reviews

Overall Assessment

Customers find this relay kit to be very practical and reliable for managing high amperage loads on a variety of vehicles. The kit comes with all required parts, including extra-long wiring, making it easy to install. It's praised for its robust performance, being used with fans, horns, fuel pumps, and more, aiding in safe operation of cooling systems, brake circuits, and airbag compressors. Despite some discrepancies in the amperage of components, customers confirmed the product functions well without causing any overload or problems. The relay kit's quality and price point was repeatedly hailed, with customers expressing readiness to repurchase the product due to its satisfactory performance. Furthermore, the kit enabled customers to add new accessories and fix existing installation issues in an efficient manner.

4.9

42 reviews

5

36

4

6

3

0

2

0

1

0

Filter by Ratings

Didn't need it

5.0

3 months ago

1939ford

Kearney, ne

Verified

1939 ford GOTRA race car

Would Recommend

Would buy again

5.0

5 months ago

Ole school

Portsmouth, ohio

Verified

Worked as advertised.everything went smoothly

Would Recommend

Great product, could use instruction update

5.0

9 months ago

Jimothy

Idaho

Verified

This does exactly what it needs to do, provides a clean install, plenty of wire. The only complaint I have is that the included instructions, and the PDF online do not label the relay pin out. The included instructions just mention connecting one red wire up to power, and the other red wire up to the accessory. The small addition of, the short red wire should attach to your accessory and the long red wire should attach to the power source would be super helpful for inexperienced people (Like me). The online description does have that, but I only had the paper copy in the garage, and ended up attaching it backwards. Along with that, if the diagram was updated to include the pin numbers for the relay would go a long way.

Would Recommend

Auxiliary fan

5.0

a year ago

Chris

Austin, Tx

Verified

Works great for the American auto wire electric fan add on

Would Recommend

Works great

5.0

a year ago

RMartinez

Visalia california

Verified

Needed a horn works

Would Recommend

I would buy again

5.0

2 years ago

Lenny

Rochester Mn

Verified

Very versatile

Would Recommend

Good product

4.0

2 years ago

Mig

Phx az

Verified

Worked good

Would Recommend

Exactly what I needed.

5.0

2 years ago

GEA

Keller, TX

Verified

The kit included all of the parts and extra-long wiring. Easy installation.

Would Recommend

yes

5.0

2 years ago

Vinny

San Diego CA

Verified

use for electric fan

Would Recommend

Yes

5.0

2 years ago

Jim

Clovis Ca

Verified

Worked as advertised

Would Recommend

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