Ford Pulleys

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How Pulleys Keep Your Engine Running Smoothly

Pulleys are vital in transferring power to components like the alternator, water pump, and power steering. Without properly functioning pulleys, belts may slip, squeal, or break, leaving your vehicle at risk of breakdown. On trucks like the Ford Ranger, strong pulleys keep accessories working under demanding conditions.

Types of Pulleys You Can Find Under the Hood

  • Idler pulleys that guide and tension drive belts.
  • Tensioner pulleys that maintain correct belt pressure.
  • Crankshaft pulleys that drive multiple components.
  • Alternator pulleys that generate charging power.
  • Water pump pulleys that circulate coolant.
  • Power steering pulleys for steering assist.

How Do You Replace a Pulley?

While the exact steps can vary depending on your specific Ford model, the following is a general procedure:

  1. Disconnect the battery for safety.
  2. Remove the belt connected to the pulley.
  3. Use the proper tool to loosen the pulley bolt.
  4. Remove the old pulley and inspect the belt.
  5. Install the new pulley and reattach the belt.
  6. Reconnect the battery and test for proper operation.

Which Related Parts Improve Reliability?

Pair new pulleys with a new water pump to ensure the cooling system operates effectively. By replacing worn cooling system parts, you're helping extend the life of your engine.

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Idler Pulley

Part Number: L1MZ-8678-A
Ford Ford
Other Names: Accessory Drive Belt Idler Pulley, Kit Tension Pulley, ys378
Description: 3.3L hev, lower. Explorer. 3.3l hybrid. Smooth. Police Interceptor Utility. 3.3l hybrid.
Fits:
  • Ford:
    • Explorer,
    • Police Interceptor Utility
MSRP $165.80
$103.96

Crankshaft Pulley

Part Number: JL3Z-6312-B
Ford Ford
Notes: Includes Vibration Damper. Part has related component that cannot be reused/reinstalled. bolt.
Applications: 3.0L DIESEL.
Other Names: Vibration Damper, Pulley, Pulley Crankshaft
Description: F150. 3.0L. F-150.
Fits:
  • Ford:
    • F-150
MSRP $652.67
$438.59

Clutch & Pulley

Part Number: KR3Z19V649A
Ford Ford
Notes: Included with compressor.
Other Names: Clutch Assembly Compressor, yb3262
Description: 5.2L with supercharger.
Fits:
  • Ford:
    • Mustang
MSRP $372.00
$231.20

Alternator Pulley

Part Number: LK4Z-10344-A
Ford Ford
Notes: Included with alternator.
Other Names: Pulley, gp782
Description: Dual alternator.
Fits:
  • Ford:
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
MSRP $119.09
$74.67

Clutch & Pulley

Part Number: JX6Z19D786A
Ford Ford
Notes: Included with compressor assembly.
Other Names: Clutch, Clutch Assembly Compressor
Replaces: H1BZ-19V649-B, JB3Z-19V649-A, JX6Z-19V649-B, YB-3223, YB-3234, YB-3237
Description: 1.5L.
Fits:
  • Ford:
    • Bronco Sport
MSRP $214.55
$134.52

Tension Pulley

Part Number: JX6Z-6A228-D
Ford Ford
Other Names: Pulley Assembly Tension, bt170
Description: 5.0L, dual alternator.
Fits:
  • Ford:
    • F-150
MSRP $169.45
$106.25

Crankshaft Pulley

Part Number: L1MZ-6312-A
Ford Ford
Applications: 3.0L.
Other Names: Pulley, Pulley Crankshaft
Description: 3.0L. Explorer. Police Interceptor Utility.
Fits:
  • Ford:
    • Explorer,
    • Police Interceptor Utility
  • Lincoln:
    • Aviator
MSRP $182.23
$124.65

Idler Pulley

Part Number: KX6Z8678A
Ford Ford
Notes: Does Not Included Manifolds Or Engine Electrical.
Applications: 2.3L.
Other Names: Tension Pulley, Accessory Drive Belt Idler Pulley, Serpentine Idler Pulley, Engine, Kit Tension Pulley, ys369
Fits:
  • Ford:
    • Bronco,
    • Bronco Sport,
    • Edge,
    • Escape,
    • Explorer,
    • Maverick,
    • Ranger,
    • Transit Connect
  • Lincoln:
    • Corsair,
    • Nautilus
MSRP $45.62
$29.10

Clutch & Pulley

Part Number: HL3Z-19D786-FA
Ford Ford
Notes: Included with compressor assembly.
Other Names: Clutch, A\/C Compressor Clutch, Clutch Assembly Compressor, yb3231
Replaces: FL3Z-19D786-F, HL3Z-19V649-FA, YB-3179, YB-3228
Description: F150. 3.5l. Without turbo. High ambient temp/speed. 3.3L. Ambient Temp,Speed Pack. 3.5L, 3.5L non turbo, with high temp pkg.
Fits:
  • Ford:
    • F-150
MSRP $376.36
$233.91

Clutch & Pulley

Part Number: ML3Z-19D786-A
Ford Ford
Notes: Included with compressor assembly.
Other Names: Clutch, Clutch Assembly Compressor
Description: F-150. 5.0l.
Fits:
  • Ford:
    • F-150
MSRP $369.09
$229.39

Idler Pulley

Part Number: PC3Z-6C348-B
Ford Ford
Other Names: Accessory Drive Belt Idler Pulley, Pulley
Description: Dual Alternators. Power Inverter. Grooved.
Fits:
  • Ford:
    • F-250 Super Duty,
    • F-350 Super Duty,
    • F-450 Super Duty,
    • F-550 Super Duty
MSRP $68.93
$47.98

Crankshaft Pulley

Part Number: NC3Z-6312-A
Ford Ford
Notes: Part has related component that cannot be reused/reinstalled. bolt.
Applications: 6.2L.
Other Names: Vibration Damper, Pulley, Pulley Crankshaft
Replaces: BC3Z-6312-A
Description: 6.2L. F250, f350 super duty. F150. E-350 Super Duty. E-450 Super Duty.
Fits:
  • Ford:
    • E-350 Super Duty,
    • E-450 Super Duty,
    • F-150,
    • F-250 Super Duty,
    • F-350 Super Duty
MSRP $287.83
$195.15

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