The Fel-Pro ES 72171 is a cylinder head bolt set that secures the cylinder head to the engine block, clamping the head gasket to the correct load when torqued to the manufacturer's sequence and specification on the applications listed below, giving you correct-fit replacement hardware for the job.
| Brand | Fel-Pro |
| Part Number | ES 72171 |
| Product Type | Cylinder Head Bolt Set |
| Bolt Diameter | 12mm (Bolt 1); 8mm (Bolt 2) |
| Critical Length | 139mm (Bolt 1); 85mm (Bolt 2) |
| Thread Length | 106mm (Bolt 1); 69mm (Bolt 2) |
| Head Size | Torx 55 (Bolt 1); Torx 55 (Bolt 2) |
| Design | Replacement required |
| Engine | V6 (4.0L) |
| UPC | 614046359147 |
| Shipping Dimensions | 12.75 x 8.75 x 0.5 in, 0.2 lb |
Vehicle Fitment:
- 2005-2009 Land Rover LR3 4.0L
- 2001-2003 Ford Explorer Sport 4.0L
- 2001-2010 Ford Explorer Sport Trac 4.0L
- 1997-2010 Ford Explorer 4.0L
- 2005-2010 Ford Mustang 4.0L
- 2001-2011 Ford Ranger 4.0L
- 1998-2010 Mercury Mountaineer 4.0L
- 2001-2010 Mazda B4000 4.0L
Important Notes:
- Torque the head bolts in the correct sequence and stages to the manufacturer's specification; many head bolts are torque-to-yield and should not be reused.
- Install a fresh head gasket set at the same time and clean the bolt holes before torquing.
- Verify the application and engine configuration against your engine before ordering; hardware is matched to specific engines.
WARNING: WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm.
