Page 2
Dual Electric Fan Wiring Harness with Temperature Sending Unit and 40 Amp Waterproof Relays
Be Cool Part Numbers:
#75100 - Temperature Sending Unit Turns Fans on at 210˚, off at 190˚
#75117 - Temperature Sending Unit Turns Fans on at 195˚, off at 175˚
#75104 - Temperature Sending Unit Turns Fans on at 185˚, off at 165˚
Kit Contents for #75100, #75117, or #75104:
• 2 Harnesses with Relays, Sockets, and Fuse Holders
• #75099 Temperature Sending Unit (for kit #75100)
• #75030 Temperature Sending Unit (for kit #75117)
• #75029 Temperature Sending Unit (for kit #75104)
• Butt and Eyelet Connectors
• Shrink Tubing
See page 5 for installation instructions and pages 6 & 7 for wiring diagrams for
vehicles without air conditioning and pages 8 & 9 for vehicles with air conditioning.
Page 19
Electric Fan Temperature Sending Units Part Number
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 185 Degrees and Turn Off at 165 Degrees 75029
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 195 Degrees and Turn Off at 175 Degrees 75030
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 210 Degrees and Turn Off at 190 Degrees 75099
Electric Fan Relays
40 Amp Replacement Waterproof Relay 75022
Electric Fan Connectors
Weatherhead Pigtail Connector, for #75066, #75068, and/or #75069 Electric Fans 75071
Electric Fan Standard Pigtail Connector 75221
75022 75029 75030 75099
185˚/165˚ 195˚/175˚ 210˚/190˚
Make sure your alternator has
a minimum of 100 AMPS
at idle to maintain a consistent
14.2 volts.
This will ensure your
electric fans are operating
at maximum efficiency.
Page 2
Dual Electric Fan Wiring Harness with Temperature Sending Unit and 40 Amp Waterproof Relays
Be Cool Part Numbers:
#75100 - Temperature Sending Unit Turns Fans on at 210˚, off at 190˚
#75117 - Temperature Sending Unit Turns Fans on at 195˚, off at 175˚
#75104 - Temperature Sending Unit Turns Fans on at 185˚, off at 165˚
Kit Contents for #75100, #75117, or #75104:
• 2 Harnesses with Relays, Sockets, and Fuse Holders
• #75099 Temperature Sending Unit (for kit #75100)
• #75030 Temperature Sending Unit (for kit #75117)
• #75029 Temperature Sending Unit (for kit #75104)
• Butt and Eyelet Connectors
• Shrink Tubing
See page 5 for installation instructions and pages 6 & 7 for wiring diagrams for
vehicles without air conditioning and pages 8 & 9 for vehicles with air conditioning.
Page 19
Electric Fan Temperature Sending Units Part Number
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 185 Degrees and Turn Off at 165 Degrees 75029
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 195 Degrees and Turn Off at 175 Degrees 75030
Electric Fan Temperature Sending Unit 3/8” to 1/2” N.P.T. to Turn On at 210 Degrees and Turn Off at 190 Degrees 75099
Electric Fan Relays
40 Amp Replacement Waterproof Relay 75022
Electric Fan Connectors
Weatherhead Pigtail Connector, for #75066, #75068, and/or #75069 Electric Fans 75071
Electric Fan Standard Pigtail Connector 75221
75022 75029 75030 75099
185˚/165˚ 195˚/175˚ 210˚/190˚
Make sure your alternator has
a minimum of 100 AMPS
at idle to maintain a consistent
14.2 volts.
This will ensure your
electric fans are operating
at maximum efficiency.
AccessoriesKit Contents
Dual Electric Fan Wiring Kit
See page 5 for installation instructions, pages 6 & 7 for wiring diagrams for
vehicles without air conditioning, and pages 8 & 9 for vehicles with air conditioning.
115304 BeCool Wiring Harness Cover.indd 2 1/11/19 10:40 AM
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