The Enginetech HB304 is a replacement Torque-to-Yield (TTY) cylinder head bolt set for 2005-2012 Audi 3.2L/3.0L engines.
Important Notes
- Two sets required per engine - one set per cylinder head.
Specifications
| Part Number | HB304 |
| Product Type | Torque-to-Yield (TTY) Head Bolt Set |
| Bolt Type | Single-use TTY - do not reuse |
| Cross-References | Victor Reinz:GS33645, MAHLE:GS33645, DNJ:HBK814 |
Vehicle Fitment
- 2005-2008 Audi A6 Quattro 3.2L V6 DOHC
- 2005-2009 Audi A4 Quattro 3.2L V6 DOHC
- 2006-2008 Audi A4 3.2L V6 DOHC
- 2008-2010 Audi A5 Quattro 3.2L 195ci V6 DOHC
- 2009 Audi A6 Quattro 3.0L V6 DOHC Supercharged
- 2009-2010 Audi A6 3.2L 195ci V6
- 2009-2011 Audi A6 Quattro 3.0L V6 DOHC Supercharged
- 2009-2012 Audi Q5 3.2L 195ci V6 DOHC
- 2010-2012 Audi S4 3.0L V6 DOHC Supercharged
- 2010-2012 Audi S5 3.0L V6 DOHC Supercharged
- 2011 Audi Q7 3.0L V6 DOHC Supercharged
- 2011-2012 Audi Q7 3.0L V6 DOHC Supercharged
- 2012 Audi A6 Quattro 3.0L V6 DOHC Supercharged
- 2012 Audi A7 Quattro 3.0L V6 DOHC Supercharged
- 2012 Audi Q7 3.0L V6 DOHC Supercharged
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.
