HomeBelts and Cooling > Cooling Fan, Clutch and MotorFour Seasons 46021 Engine Cooling Fan Clutch
Part #: 46021

Four Seasons 46021 Engine Cooling Fan Clutch

Fan Clutch
⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Fan Clutch
🚗Fitment: Dodge, Ram 1500, Ram 2500, and Ram 3500
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Engine Cooling for Dodge Ram Trucks

The Four Seasons Fan Clutch 46021 is engineered to provide dependable engine cooling for Dodge Ram 1500, Ram 2500, and Ram 3500 models. Designed for severe duty applications, this aluminum fan clutch ensures consistent performance under demanding conditions.

  • Constructed from durable aluminum material
  • Severe duty clutch type suitable for truck fan drives
  • Non-electronic, mechanical operation for reliable cooling
  • Four bolt holes and mounting holes for secure installation
  • Compatible with Dodge Ram 1500, 2500, and 3500 models
  • Meets or exceeds OEM specifications
  • Raw aluminum color with hex mounting type
  • Maximum clutch diameter of 6.45 inches
  • Overall height of 4.63 inches for proper fitment

About the Four Seasons Fan Clutch Product Line

The Four Seasons Fan Clutch line focuses on engine cooling components designed to maintain optimal engine temperatures in severe duty environments. This product line includes fan clutches engineered for heavy-duty truck applications, such as the Dodge Ram series, ensuring durability and performance that meet or exceed original equipment manufacturer standards.

Detailed Product Description

The Four Seasons Fan Clutch 46021 is a new, non-electronic engine cooling fan clutch constructed from aluminum, providing strength and heat resistance. It features a severe duty clutch type (D) designed specifically for truck fan drives, making it suitable for the rigorous demands of Dodge Ram 1500, 2500, and 3500 trucks. The clutch has a maximum diameter of 6.45 inches and an overall height of 4.63 inches, with a 4-bolt mounting pattern using 5/16-18 threaded holes. The hex mounting type and raw aluminum finish contribute to its robust design. This fan clutch operates with a reverse rotation and includes a pilot depth of 0.7 inches, ensuring precise fitment and reliable operation. It is performance rated and meets or exceeds OEM requirements, providing a dependable cooling solution for your engine.

Common Issues Addressed by This Fan Clutch

  • Overheating due to faulty or worn fan clutch
  • Reduced engine cooling efficiency in severe duty conditions
  • Excessive fan noise caused by slipping or failing clutch
  • Engine temperature fluctuations during heavy load or towing
  • Premature wear of cooling system components

Installation Notes and Tips

Installation requires removal of the existing fan clutch and proper alignment of the 4-bolt mounting pattern. Note that mounting hardware is not included and must be sourced separately. Ensure the clutch is installed with the correct rotation direction (reverse) and torque bolts to manufacturer specifications. Verify clearance and fitment on Dodge Ram 1500, 2500, or 3500 models before finalizing installation.

Quality Assurance and Warranty

This Four Seasons Fan Clutch 46021 is a new, performance-rated part that meets or exceeds OEM standards for durability and function. Manufactured with high-quality aluminum and designed for severe duty use, it provides reliable engine cooling for Dodge Ram trucks. Warranty information is available from the manufacturer and should be confirmed at the time of purchase.

BrandFour Seasons
Part Number46021
PositionFan Clutch
Bolt Hole Quantity4
Bolt Thread5/16-18 Hole
Clutch Maximum Diameter6.45
Clutch TypeD - Severe Duty & Truck Fan Drive
ColorRaw Aluminum in Color
DescriptionFan Clutches
Dia. IN6.45
Distance From Clutch To Mounting Flange2.59
Distance From Clutch To Mounting Flange2.6
Electronic Clutch?Non Electronic
Fan Bolt Circle IN3.25
Fan Bolt Circle MM82.6
MaterialAluminum
Meets / Exceeds OEM?Yes
Mount Dia. IN1.44
Mount Dia. MM36
Mounting Hardware?Not Included
Mounting Hole Quantity4
Mounting TypeHEX
New or RemanNew
Overall Dia. MM163.8
Overall Height IN4.63
Overall Height MM117.3
Performance Rated?Yes
Pilot Depth IN0.7
Pilot Depth MM17.8
Pilot Dia. IN1.18
Pilot Dia. MM30
RotationREV
StyleSevere Duty
TypeThermal
Use TypeSevere

This part fits 22 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2008DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2008DodgeRam 1500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2008DodgeRam 2500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2008DodgeRam 3500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2007DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2007DodgeRam 1500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2007DodgeRam 2500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2007DodgeRam 3500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2006DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2006DodgeRam 1500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2006DodgeRam 2500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2006DodgeRam 3500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2005DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2005DodgeRam 1500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/ Heavy Duty Cooling; Fan Clutch
2005DodgeRam 2500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2005DodgeRam 3500Manual5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Snow Plow Package; Fan Clutch
2004DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch
2004DodgeRam 2500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch
2004DodgeRam 3500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch
2003DodgeRam 1500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch
2003DodgeRam 2500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch
2003DodgeRam 3500Automatic5.7LV8N/AReverse Rotation; Severe Duty Thermal Fan Clutch; w/o Heavy Duty Cooling; Fan Clutch

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

111460211540336191901772151502216827162329024602152028789AA52028789AB52028789AC52028789AD52028789AE52028789AF52028790AA52028790AB52028790AC52028790AD52028790AE52029876AA52029876AC52029977AA52029977AB52029977AC52029977AD9202260922516A71623CWK922516KG5861

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.