The HPS Performance Billet Aluminum Oil Cap is engineered for Subaru owners who demand durability, and a clean, high-performance look under the hood. Unlike the factory plastic cap, this one is CNC-machined from solid billet aluminum, giving it superior strength, exceptional heat resistance, and a premium finish that instantly elevates any engine bay.

A pre-installed Viton O-ring provides a major sealing upgrade over standard rubber. Viton resists extreme temperatures, oil breakdown, and harsh chemicals—delivering a long-lasting, leak-free seal and maintaining proper crankcase pressure even under hard driving.

Designed with DIY enthusiasts in mind, this cap features an ergonomic nine-hole grip pattern for easy, comfortable hand-tightening. When it’s time for removal, the cap offers multiple leverage options: use a 14mm or 9/16" socket, or slide a screwdriver through the offset holes for effortless loosening—perfect for stubborn, heat-soaked caps.

Features:

• CNC-Machined Billet Aluminum for superior strength, heat resistance, and a premium performance aesthetic.
• Pre-Installed Viton O-Ring delivers a long-lasting seal that resists extreme heat, chemicals, and oil degradation.
• Ergonomic 9-Hole Grip Pattern provides reliable, comfortable hand-tightening.
• Easy Removal Options: accepts a 14mm or 9/16" socket or a screwdriver through offset holes for additional leverage.
• Ultra-Durable Construction designed to last the full lifespan of your Subaru engine.

Engine Applications:

EJ Series:

• EJ205, EJ222, EJ223, EJ22E, EJ22EZ, EJ251, EJ252, EJ253, EJ255, EJ257, EJ259, EJ25D

EZ Series: 

• EZ30D, EZ36D

FA Series:

• FA20, FA20D, FA20F, FA24, FA24D

FB Series: 

• FB20, FB20D, FB20V, FB25, FB25BA, FB25BC, FB25D, FB25X