For BMW N13 N13 N52, N54 N55 OEM 11517552836 11518604887 Water Pump Gasket

BMW Genuine Water Pump Gasket
(OEM Part Numbers: 11517552836 & 11518604887)

  This critical sealing component in BMW's engine cooling system ensures a tight seal between the water pump and engine block/pump housing to prevent coolant leakage. Below are the detailed specifications:

1. Basic Part Information

• OEM Numbers
  ▸ 11517552836 (Common for N52/N54 engines)
  ▸ 11518604887 (Updated version/model-specific replacement)

• Material
  High-temperature resistant rubber (EPDM) or composite fiber material, designed to withstand coolant exposure and extreme heat.

2. Compatibility Table

3. Function & Purpose

• Sealing: Prevents coolant leakage at the water pump mating surface.

• Pressure & Temperature Resistance: Handles cooling system pressure (~1.5-2.0 bar) and temperature ranges (-40°C to 120°C).

• Coolant Compatibility: Works with BMW-approved coolants (e.g., G48 or HT12) to avoid chemical degradation.

4. Common Failure Symptoms

• Coolant Leaks: Visible pink/blue coolant residue near the water pump or engine block.

• Engine Overheating: Caused by low coolant levels due to leakage.

• Unusual Noises: Air ingress from a failing seal may lead to whining or bubbling sounds.

5. Replacement Recommendations

• Replacement Interval: Recommended when replacing the water pump (~80,000-100,000 miles) or immediately upon detecting leaks.

• Related Parts:

  • Water pump assembly (some models require full replacement)

  • Coolant (must be drained and refilled)

  • Bolts (some are single-use torque-to-yield designs).

• Installation Tips:

  • Clean mating surfaces thoroughly to remove old gasket residue.

  • Follow torque specifications to avoid warping or poor sealing