L3K913ZE5 Mazda RING,O, Price: 8.22$, Weight: 0.001kg

Fuel Injector O‑Ring Seal for Mazda Fuel Systems

This genuine-style sealing ring keeps fuel pressure stable and stops leaks at the injector connection. It is critical for clean starts, smooth idle, correct spray pattern, and safe operation. If you service injectors, rails, or a high‑pressure pump, this small ring is a must‑replace item.

How it works

The elastomer O‑ring sits in the injector groove and compresses into the rail/manifold bore. It forms a tight, gasoline‑resistant seal that handles heat, vibration, and pressure pulses. Proper sealing prevents air from entering and fuel from escaping, keeping mixture and pressure in spec.

What happens if it fails

Expect hard starts, rough idle, misfire, fuel smell, wet rail, high consumption, and soot near the joint. ECU may log lean and misfire codes. Prolonged leaks can wash cylinders, damage the catalyst, and raise fire risk. Replace at any sign of cracks, flattening, or swelling.

Tech tips ✅

Always renew when injectors are removed. Lightly oil the ring, do not twist. Clean seats, check clips, and torque rail evenly. Use fuel‑safe lubricant only.

Compatibility

• Axela
• Biante
• Premacy
• Cx-7
• Atenza Sedan/Sport
• Atenza Mazdaspeed
• Atenza Sport Wagon
• Mpv
• 3
• Speed 6
• 5
• 6
• 6 Mps
• 6 Wagon