ARP L19 head studs are engineered to deliver superior strength and durability in high-performance engine builds, especially those running high boost pressure, increased cylinder pressures, or high RPMs. These head studs are an ideal choice for engines that have been significantly modified beyond stock, as OEM head bolts can stretch or fail under the immense forces present in these environments.

Key advantages of using ARP L19 head studs over traditional bolts include:

Consistent Clamping Force: Studs provide more consistent and even clamping force than head bolts, which reduces the chance of head gasket failure under extreme pressure.
Reusability: Unlike traditional bolts, which stretch and must be replaced after each use, L19 head studs can often be reused if properly installed and maintained, provided they haven't been exposed to moisture or excessive stretching.
Superior Heat Resistance: L19 studs can maintain their integrity under extreme thermal conditions, a crucial benefit when dealing with the high temperatures common in performance engines.
Enhanced Head Gasket Sealing: The stronger clamping force ensures that the cylinder head and block remain tightly sealed even under the most demanding conditions, preventing head gasket blowouts and coolant leaks.

Ideal Applications:

High-Boost Turbocharged Engines: Such as the EA888, Audi 2.5 TFSI, or other forced induction engines in the Audi RS3 or S3.
Supercharged Applications: Where cylinder pressures are increased.
Race Builds: Engines intended for track or competition use where high power output and durability are essential.

ARP L19 head studs are essential for engines exceeding stock power levels and are commonly used in engines running 30+ psi of boost or with extensive internal upgrades like forged pistons and rods. Proper installation and maintenance are critical to avoid corrosion or improper torque settings, which could compromise their performance.

FITS:

Audi A1 / S1 8X | BJ 2010-2018 2.0L TFSI (EA113) CDLH | 256 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA113) AXX | 200 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA113) BHZ | 265 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA113) BPY | 200 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA113) BWA | 200 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA113) CDLA | 265 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA888) CAWB | 200 PS
Audi A3 / S3 / RS3 8P, 8PA | BJ 2003-2013 2.0L TFSI (EA888) CCZA | 200 PS
Audi A4 / S4 / RS4 B7 (Typ 8E) | BJ 2004-2008 2.0L TFSI (EA113) BGB | 200 PS
Audi A4 / S4 / RS4 B7 (Typ 8E) | BJ 2004-2008 2.0L TFSI (EA113) BPG | 200 PS
Audi A4 / S4 / RS4 B7 (Typ 8E) | BJ 2004-2008 2.0L TFSI (EA113) BUL | 220 PS
Audi A4 / S4 / RS4 B7 (Typ 8E) | BJ 2004-2008 2.0L TFSI (EA113) BWE | 200 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CAEA | 180 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CAEB | 211 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CDNB | 180 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CDNC | 211 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CFKA | 180 PS
Audi A4 / S4 / RS4 B8 (Typ 8K) | BJ 2007-2015 2.0L TFSI (EA888) CNCD | 225 PS
Audi A6 / S6 / RS6 C6 | BJ 2004-2011 2.0L TFSI (EA113) BPJ | 170 PS
Audi A6 / S6 / RS6 C7 | BJ 2011-2018 2.0L TFSI (EA888) CDNB | 180 PS
Audi A6 / S6 / RS6 C7 | BJ 2011-2018 2.0L TFSI (EA888) CESA | 211 PS (CA und USA)
Audi A6 / S6 / RS6 C7 | BJ 2011-2018 2.0L TFSI (EA888) CUHA | 224 PS (CA und USA)
Audi A6 / S6 / RS6 C7 | BJ 2011-2018 2.0L TFSI (EA888) CYNB | 252 PS
Audi A6 / S6 / RS6 C7 | BJ 2011-2018 2.0L TFSI (EA888) CYPA | 252 PS
Audi Q3 / RS Q3 8U | BJ 2011-2018 2.0L TFSI (EA888) CCTA | 200 PS
Audi Q3 / RS Q3 8U | BJ 2011-2018 2.0L TFSI (EA888) CCZC | 170 PS
Audi Q3 / RS Q3 8U | BJ 2011-2018 2.0L TFSI (EA888) CPSA | 211 PS
Audi Q3 / RS Q3 8U | BJ 2011-2018 2.0L TFSI (EA888) CULB | 180 PS
Audi Q3 / RS Q3 8U | BJ 2011-2018 2.0L TFSI (EA888) CULC | 220 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CADA | 211 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CAEB | 211 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CDNB | 180 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CDNC | 211 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CDZA | 180 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CNBC | 180 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CNCB | 180 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CNCD | 225 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CNCE | 230 PS
Audi Q5 / SQ5 8R | BJ 2008-2017 2.0L TFSI (EA888) CPMA | 211 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA113) BPY | 200 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA113) BWA | 200 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA113) CDLB | 272 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA888) CCZA | 200 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA888) CESA | 211 PS
Audi TT / TTS / TT RS 8J | BJ 2006-2014 2.0L TFSI (EA888) CETA | 211 PS
Seat Altea I | BJ 2004-2015 2.0L TFSI (EA888) BWA | 200 PS
Seat Altea I | BJ 2004-2015 2.0L TFSI (EA888) CCZB | 211 PS
Seat Exeo I (Typ 3R) | BJ 2008-2013 2.0L TFSI (EA113, EA888) BWE | 200 PS
Seat Exeo I (Typ 3R) | BJ 2008-2013 2.0L TFSI (EA113, EA888) CDND | 210 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) BWA | 185 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) BWA | 200 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) BWJ | 240 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) BWJ | 286 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) BWJ | 310 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) CDLA | 265 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) CDLA | 310 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TFSI (EA113) CDLD | 240 PS
Seat Leon II (Typ 1P) | BJ 2005-2012 2.0L TSI (EA888) CCZB | 211 PS
Seat Toledo III (Typ 5P) | BJ 2004-2009 2.0L TSI (EA113) BWA | 200 PS
VW Eos I (Typ 1F) | BJ 2006-2015 2.0L TFSI (EA113) BWA | 200 PS
VW Eos I (Typ 1F) | BJ 2006-2015 2.0L TSI (EA888) CAWB | 200 PS
VW Eos I (Typ 1F) | BJ 2006-2015 2.0L TSI (EA888) CCZA | 200 PS
VW Eos I (Typ 1F) | BJ 2006-2015 2.0L TSI (EA888) CCZB | 211 PS
VW Golf V (Typ 1K) | BJ 2003-2008 2.0L TFSI (EA113) AXX | 200 PS
VW Golf V (Typ 1K) | BJ 2003-2008 2.0L TFSI (EA113) BPY | 200 PS
VW Golf V (Typ 1K) | BJ 2003-2008 2.0L TFSI (EA113) BWA | 200 PS
VW Golf V (Typ 1K) | BJ 2003-2008 2.0L TFSI (EA113) BYD | 230 PS
VW Golf V (Typ 1K) | BJ 2003-2008 2.0L TFSI (EA113) CDL | 240 PS
VW Golf VI (Typ 5K1) | BJ 2008-2012 2.0L TFSI (EA113) CDLF | 270 PS
VW Golf VI (Typ 5K1) | BJ 2008-2012 2.0L TFSI (EA113) CDLG | 235 PS
VW Golf VI (Typ 5K1) | BJ 2008-2012 2.0L TFSI (EA888) CCZB | 211 PS
VW Jetta / Vento / Bora V - Jetta / Vento / Bora / Sagitar - (Typ 1K2/1KM) | BJ 2005-2010 2.0 TSI (EA888) CAWB | 200 PS
VW Jetta / Vento / Bora VI - Jetta / Vento / Sagitar / Lavida - (Typ 162) | BJ 2010-2018 2.0L TSI (EA888) CCZA | 200 PS
VW Jetta / Vento / Bora VI - Jetta / Vento / Sagitar / Lavida - (Typ 162) | BJ 2010-2018 2.0L TSI (EA888) CPLA | 210 PS
VW Passat B6 (3C) | BJ 2005-2010 2.0L TFSI (EA113) AXX | 200 PS
VW Passat B6 (3C) | BJ 2005-2010 2.0L TFSI (EA113) BWA | 200 PS
VW Passat B7 (3C/36) | BJ 2010-2015 2.0L TSI (EA888) CCZB | 211 PS
VW Passat CC (35) | BJ 2008-2016 2.0L TSI (EA888) CAWB | 200 PS
VW Passat CC (35) | BJ 2008-2016 2.0L TSI (EA888) CCZB | 211 PS
VW Polo V (Typ 6R) | BJ 2009-2014 2.0 WRC (EA113) CDLJ | 220 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA113) CDLA | 265 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA113) CDLK | 280 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA888) CAWB | 200 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA888) CCZB | 211 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA888) CULA | 180 PS
VW Scirocco III (Typ 13) | BJ 2008-2017 2.0L TSI (EA888) CULC | 220 PS
VW Sharan II (Typ 7N) | BJ 2010-> 2.0L TSI (EA 888 Gen.3) DEDA | 220 PS
VW Sharan II (Typ 7N) | BJ 2010-> 2.0L TSI (EA888) CCZA | 200 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CAWA | 170 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CAWB | 200 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CCTA | 200 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CCZA | 200 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CCZB | 211 PS
VW Tiguan I (Typ 5N) | BJ 2007-2016 2.0L TSI (EA888) CCZD | 180 PS
?koda Octavia I (Typ 1U) | BJ 1996-2010 1.8T 20V ARX | 150 PS
?koda Octavia II (Typ 1Z) | BJ 2004-2013 1.8L TSI (EA888) CDAA | 160 PS

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