Upgrade your BMW’s cooling system with this solid billet brass Coolant Expansion Tank Bleeder Screw, engineered to replace the weak plastic OEM part that commonly strips, cracks, or fails. This permanent metal upgrade ensures durability, reliability, and long-lasting performance—making it a must-have for BMW owners.
Premium Solid Brass Construction
Machined from billet brass for maximum strength and durability—won’t strip like the factory plastic screw.
Lifetime Replacement Solution
Permanently replaces BMW OEM plastic bleeder screw (Part #17111712788) and prevents coolant leaks or breakdowns caused by stripped threads.
Exact Fit Replacement
Replaces manufacturer part numbers: 11537793373, 17110141325
Adapter Diameter: M10
Essential Cooling System Upgrade
Avoid being stranded due to a failed bleeder screw. This brass version ensures a tight seal, reliability, and long service life.
2 × Coolant Expansion Tank Bleeder Screws (Brass)
2 × O-Rings
128i (2008–2011)
135i (2008–2011)
318i (1991–1998)
318is (1991–1997)
318ti (1995–1999)
320i (2001–2005)
323Ci (2000)
323i (1998–2000, 2006–2010)
323is (1998–1999)
325Ci (2001–2005)
325i (1992–1995, 2001–2006)
325is (1992–1995)
328Ci (2000)
328i (1996–2000, 2007–2011)
328i xDrive (2009–2011)
328is (1996–1999)
328xi (2007–2008)
330Ci (2001–2005)
330i (2001–2006)
330xi (2001–2006)
335d (2009–2011)
335i (2007–2011)
335i xDrive (2009–2011)
335is (2011)
335xi (2007–2008)
525i (1989–1995, 2001–2003)
525iT (1993)
528i (1997–2000)
530i (2001–2003)
540i (1997–2003)
740iL (1996–2001)
750iL (1995–2001)
840Ci (1994–1997)
850Ci (1993–1997)
850i (1991–1992)
M3 (1995–1999, 2001–2006, 2008–2011)
X1 (2013)
X3 (2004–2010)
X5 (2000–2005, 2009–2011)
X6 (2008–2011)
Z3 (1996–2002)
Z4 (2003–2011)