HomeBelts and Cooling > Hardware, Fasteners and FittingsGenuine 98710604400 Engine Coolant Filler Neck Cap
Part #: 98710604400

Genuine 98710604400 Engine Coolant Filler Neck Cap

⚙️ 15 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$52.28Free Shipping
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Porsche, Boxster and Cayman
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Genuine Engine Coolant Filler Neck Cap

The Genuine Engine Coolant Filler Neck Cap 98710604400 is designed specifically for Porsche Boxster and Cayman models. This essential component ensures a secure seal for the engine coolant system, maintaining optimal pressure and preventing leaks.

  • Compatible with Porsche Boxster and Cayman models
  • Part number 98710604400 for precise fitment
  • Engine coolant filler neck cap designed to maintain system pressure
  • Durable construction to withstand engine heat and pressure
  • OEM quality to meet manufacturer specifications

Product Details and Specifications

This engine coolant filler neck cap is engineered to fit Porsche Boxster and Cayman vehicles, providing a reliable seal for the coolant reservoir. The part number 98710604400 identifies this Genuine component, ensuring compatibility and performance consistent with factory standards. Proper sealing of the coolant system is critical to prevent overheating and maintain engine efficiency. The cap is constructed from materials that resist corrosion and degradation from engine heat and coolant chemicals.

Purpose and Common Applications

  • Prevents coolant leaks from the filler neck
  • Maintains correct pressure within the cooling system
  • Helps avoid engine overheating issues
  • Replaces worn or damaged filler neck caps
  • Ensures proper coolant system operation in Porsche Boxster and Cayman

Installation Notes and Tips

Installation of the Genuine Engine Coolant Filler Neck Cap 98710604400 is straightforward. Ensure the engine is cool before removing the old cap to avoid injury from hot coolant or steam. Clean the filler neck area to remove debris or residue before installing the new cap. Tighten the cap securely to maintain system pressure but avoid over-tightening, which can damage the cap or neck.

Quality Assurance and Warranty Information

This Genuine engine coolant filler neck cap meets Porsche OEM standards for fit and function. Manufactured to strict quality controls, it provides reliable performance for the cooling system. Warranty coverage is subject to the terms provided by Genuine parts, typically including protection against manufacturing defects. Using this part helps maintain the integrity of your Porsche Boxster or Cayman cooling system.

This part fits 15 vehicles. Search below:

YearMakeModelPositionNotes
2012PorscheBoxsterN/A
2012PorscheCaymanN/A
2011PorscheBoxsterN/A
2011PorscheCaymanN/A
2010PorscheBoxsterN/A
2010PorscheCaymanN/A
2009PorscheBoxsterN/A
2009PorscheCaymanN/A
2008PorscheBoxsterN/A
2008PorscheCaymanN/A
2007PorscheBoxsterN/A
2007PorscheCaymanN/A
2006PorscheBoxsterN/A
2006PorscheCaymanN/A
2005PorscheBoxsterN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.