The Enginetech HB173 is a replacement Torque-to-Yield (TTY) cylinder head bolt set for 1997-2011 Ford/Land Rover/Mazda 4.0L engines.
Important Notes
- Two sets required per engine - one set per cylinder head.
Specifications
| Part Number | HB173 |
| Product Type | Torque-to-Yield (TTY) Head Bolt Set |
| Bolt Type | Single-use TTY - do not reuse |
| Cross-References | FEL-PRO:ES72171, Victor Reinz:GS33401, MAHLE:GS33401 |
Vehicle Fitment
- 1997-2010 Ford Explorer 4.0L 245ci V6 SOHC [VIN:E]
- 1998-2002, 2004-2010 Mercury Mountaineer 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2003 Ford Explorer Sport 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2009 Mazda B4000 4.0L 245ci V6 SOHC [VIN:E]
- 2001-2011 Ford Ranger 4.0L 245ci V6 SOHC [VIN:E]
- 2002-2005 Ford Explorer 4.0L 245ci V6 SOHC [VIN:K]
- 2002-2005 Mercury Mountaineer 4.0L 245ci V6 SOHC [VIN:K]
- 2005-2007 Land Rover LR3 4.0L 245ci V6 SOHC [VIN:4]
- 2005-2010 Ford Mustang 4.0L 245ci V6 SOHC [VIN:N]
Enginetech TTY (Torque-to-Yield) head bolt sets are engineered to
OEM specifications for proper cylinder head clamping force during engine rebuilds. TTY
bolts are designed for single use - they stretch plastically during torquing to achieve
precise clamp load and must never be reused. Enginetech packages head bolts in per-head
quantities for popular applications, making it straightforward to order exactly what your
engine requires. Always follow the manufacturer's torque sequence and torque angle
specification when installing TTY head bolts. Verify part fitment by year, make, model,
and engine displacement before ordering.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
