Premium Guard PG4459EX Engine Oil Filter

Premium Guard PG4459EX Extended Life Oil Filter

The Premium Guard PG4459EX is an Extended Life spin-on engine oil filter built for a wide range of Hyundai, Kia, Subaru, Toyota, and related applications. It uses synthetic blend media, a silicone gasket, and an anti-drain back valve to support clean oil flow and consistent protection in everyday driving and extended service intervals.

Key Features

• Synthetic blend filter media for efficient contaminant capture
• 25 micron rating for fine particle filtration
• Spin-on filter design with M20x1.5P inside thread size
• Anti-drain back valve helps retain oil in the filter after shutdown
• Bypass relief valve set at 13-16 psi
• Silicone gasket with 0.18 in thickness for sealing consistency
• Flow rate: 7.93
• Burst pressure: 450
• Height: 3.07 in; outer diameter bottom: 3.15 in

Extended Life Product Line

Premium Guard’s Extended Life line is built for drivers who follow longer oil change intervals and want a filter designed around stable flow, sealing, and filtration performance. The PG4459EX part number is used across many late-model and older import applications, including Hyundai Elantra, Kia Soul, Subaru WRX, Toyota GR86, and Kia Forte platforms.

Detailed Description

The PG4459EX oil filter is a direct-fit spin-on engine oil filter for many vehicles that use the M20x1.5P thread pattern. Its synthetic blend media is paired with a 25 micron rating to help trap wear particles while maintaining oil circulation. The silicone gasket and anti-drain back valve support a secure seal and help keep oil in the filter between starts. This part number, PG4459EX, also cross-references Wix WL10078 for the same application.

Compatible With applications such as Fits 2015-2026 Subaru WRX, N/A; Fits 2022-2025 Subaru BRZ, N/A; Fits 2022-2026 Toyota GR86, N/A; Fits 2010-2025 Kia Soul, N/A; Fits 1992-2026 Hyundai Elantra, N/A; and Fits 2010-2024 Kia Forte, N/A. Additional coverage includes many Hyundai, Kia, Subaru, Toyota 86/FR-S, and select Mitsubishi, Honda, Acura, and Isuzu models listed in the fitment data.

What This Oil Filter Helps Address

• Engine oil contamination from dust, soot, and wear debris
• Oil drain-back after shutdown that can delay lubrication on restart
• Seal leakage at the filter base due to gasket wear or mismatch
• Restricted oil flow caused by a loaded or inefficient filter element
• Service intervals that call for an Extended Life oil filter

Installation Notes and Tips

Verify the thread size, gasket dimensions, and filter height before installation. This filter uses a spin-on design with an M20x1.5P thread, so it should be matched to the engine’s specified oil filter mount. Replace the filter during each oil service and pre-fill only if the vehicle manufacturer’s procedure allows it. Always check for proper gasket seating and confirm there are no leaks after startup.

Quality Assurance

Premium Guard lists this filter with a synthetic blend media element, silicone gasket, anti-drain back valve, and bypass relief valve for controlled filtration and flow. The PG4459EX is specified for a broad range of confirmed applications, including Hyundai Elantra, Kia Soul, Subaru WRX, and Toyota GR86 fitments.