MAHLE Engine Camshaft Position Sensor Grommet

MAHLE Camshaft Position Sensor Grommets: Small Seals, Big Responsibility

The camshaft position sensor tells the engine control module where the camshaft sits in relation to the crankshaft, which is critical for fuel injection and ignition timing, especially on engines with variable valve timing. The grommet around that sensor, or around the variable camshaft timing sensor connection, keeps oil in and contaminants out. When it hardens, shrinks, or cracks with age and heat, the result can be seeping oil, a fouled sensor connector, or an intermittent signal that sets a check-engine light. MAHLE supplies grommets for this job under its MAHLE Original line, which carries on the legacy of the Victor Reinz gasket brand.

What Sets MAHLE Apart in This Category

MAHLE is a German engine-component specialist founded in 1920, best known for pistons, bearings, gaskets and filters. That background matters for something as simple as a sensor grommet. The company describes its aftermarket parts as matching the quality and reliability of original-equipment parts, and its gasket and sealing products are positioned as trusted by OEMs and technicians worldwide. A sensor grommet has to tolerate constant heat cycling, engine oil exposure and vibration, and material consistency is what separates a seal that lasts from one that leaks within a season.

Variable Camshaft Timing Sensor Grommets

MAHLE Original lists its grommets in this category as Variable Camshaft Timing Sensor Grommets, engineered for specific engine families rather than as one-size-fits-all rubber. Examples include part B32253, listed for Ford F-250 and F-350 Super Duty trucks from roughly 2005 to 2010, and B32109, which covers the 2006-2009 Ford Fusion and a range of Mazda models such as the Mazda3, Mazda6, CX-7 and MX-5 Miata. Another, B32649, is listed for the 2009-2012 Ford Escape and 2010-2012 Fusion. Because fitment is application-specific, it is worth confirming your engine and model year before ordering.

When to Replace the Grommet

• Whenever you replace a camshaft or variable timing sensor, since old rubber rarely reseals as well the second time.
• During valve cover gasket or timing cover service, when the sensor area is already accessible.
• If you notice oil around the sensor body or connector, or unexplained timing-related fault codes.

It is also good practice to relearn the sensor after replacement if the vehicle calls for it, to avoid intermittent misfires.

Explore More

For the full range of the manufacturer's offerings, visit the MAHLE brand page. To compare options from other manufacturers and learn more about this part type, see the complete Engine Camshaft Position Sensor Grommet category.