Description
The Mishimoto MMFS-CK-78K Performance Fan Shroud Kit swaps the failure-prone mechanical fan on 1978-86 GM C/K Series trucks for a pair of 14-inch electric fans, each rated to move over 1300 cfm of air. Built with an aluminum shroud finished in silver with a brushed housing, this unit is engineered to mount exclusively to Mishimoto’s Chevrolet/GM C/K Performance Radiator, so there’s no cutting, bending, or fabricating required to get it installed.
This Mishimoto cooling upgrade is designed for owners who want to move beyond a worn-out, failure-prone factory mechanical fan clutch and gain electric-fan reliability instead. The two included 14-in fans are plug-in, electrically driven units with black plastic straight blades, and the kit ships with all mounting hardware needed for a bolt-in installation. For drivers who want more command over engine temperature, the shroud can optionally be paired with a Mishimoto Adjustable Fan Controller Kit (Mishimoto MMFAN-CNTL-U), which uses both NPT and probe-type sensors to give total control over coolant temperatures. Every Mishimoto Performance Fan Shroud Kit is backed by the Mishimoto Lifetime Warranty.
Vehicle Applications
This shroud kit is built for the 1978-1986 Chevrolet C10, C20, C30, K10, K20, and K30 pickups, covering engine options from the 292ci (4.8L) L6 up through the 305ci (5.0L), 350ci (5.7L), and 454ci (7.4L) V8s. Suburban owners are covered as well, with the Chevrolet C10 Suburban (1978-1980) and the C20 and K20 Suburban (1978-1986) sharing the same fitment. Medium-duty applications are included too, with the Chevrolet C50 and C60 (1980-1986) and the C70 (1980) also accepting this fan shroud. On the SUV side, it fits the 1987-1991 Chevrolet Blazer and the 1981-1991 GMC Jimmy. Rounding out coverage are the GMC R2500 (1987-1989), R3500 (1987-1991), V1500 (1987), V2500 (1987), and V3500 (1987-1991).
Features
- Includes two high-flow 14-in electric fans, each providing over 1300 cfm of airflow
- All-aluminum construction
- Optional fan controller provides complete control of coolant temperatures at idle
- Designed to mate exclusively with Mishimoto’s Chevrolet/GM C/K Performance Radiator
- Replaces failure-prone stock mechanical fan
- No cutting or bending of shroud required
- Includes all mounting hardware for installation
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Shroud Material: Aluminum
- Shroud Color: Silver
- Housing Finish: Brushed
- Fan Quantity: 2
- Fan Diameter: 14 in (each fan)
- Blade Material: Plastic
- Blade Type: Straight
- Blade Color: Black
- Blade Quantity: 10 per fan
- Maximum CFM: 1300 (each fan)
- Motor Included: Yes
- Hardwired or Plug-In: Plug-In
- Electrical or Mechanical: Electrical
- Mounting Hardware Included: Yes
- Width: 3.9 in
- Height: 23.53 in
- Length: 30.48 in
- Grade Type: Performance
Frequently Asked Questions
What does the Mishimoto MMFS-CK-78K kit include?
The kit includes one aluminum fan shroud, two 14-inch slim electric fans, an adjustable relay, a push-in radiator temperature probe, a 1/8-in NPT temperature sensor, a wiring harness, assorted wire connectors and terminals, zip ties, an in-line mini fuse holder, 10 AWG and 12 AWG wire, heat shrink tubing, and the Mishimoto Lifetime Warranty.
Which radiator does this fan shroud fit?
The shroud is designed to mount exclusively to Mishimoto’s Chevrolet/GM C/K Performance Radiator.
How much airflow do the fans produce?
Each of the two 14-in electric fans is rated to produce over 1300 cfm of airflow.
Does this kit come with a fan controller?
The kit can optionally include a Mishimoto Adjustable Fan Controller Kit (Mishimoto MMFAN-CNTL-U), which includes both NPT and probe-type sensors for total control over coolant temperatures.
What vehicles is this fan shroud designed for?
It is designed for 1978-1986 Chevrolet C10, C20, C30, K10, K20, and K30 trucks and Suburbans, 1980-1986 Chevrolet C50 and C60 and 1980 C70 medium-duty trucks, the 1987-1991 Chevrolet Blazer, the 1981-1991 GMC Jimmy, and GMC R2500, R3500, V1500, V2500, and V3500 trucks.
What warranty is included?
This fan shroud kit is backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
