OCHIKI Fuel Injection Pressure Regulator for Chevy Silverado — Direct-Fit 17113556/89060418, Metal Construction

The OCHIKI fuel injection pressure regulator is a direct-fit replacement part designed to restore and stabilize fuel pressure for select GM V8 and V6 vehicles, improving injection accuracy and drivability.

If your Chevy Silverado, GMC Sierra, Tahoe, Suburban or compatible GM model is showing symptoms tied to inconsistent fuel pressure, this OCHIKI regulator provides a durable, precision-controlled solution. Engineered from robust metal alloys, it replaces OE numbers including 17113556 and 89060418 and matches original mounting and flow characteristics for straightforward installation.

Will this regulator fit my vehicle?

This unit fits a range of GM vehicles — check engine size and year against compatibility notes before ordering. It’s commonly used on 5.3L and 6.0L V8 engines and some 4.8L/6.2L applications depending on model year and fuel system layout.

• Direct-replacement for part numbers like 17113556 and 89060418.
• Reported fits: Chevy Silverado, Tahoe, Suburban; GMC Sierra; Cadillac Escalade; Buick Rainier; Chevrolet Express on select years/models.
• Verify fit with vehicle VIN or consult mechanic before installation.

How does this regulator affect engine performance?

By maintaining consistent fuel rail pressure under varying loads, the regulator helps the fuel injectors deliver the correct fuel quantity. That consistency supports smoother acceleration and more predictable idling without changing engine tuning.

• Stabilizes fuel pressure to improve injector timing and metering.
• Reduces pressure fluctuation during throttle changes.
• Helps avoid lean or rich conditions caused by regulator failure.

What are the build and durability features?

Manufactured from quality metal materials, the OCHIKI regulator resists corrosion and wear, extending service life compared with cheaper stamped components. The design focuses on pressure stability and structural strength for long-term use in harsh under-hood environments.

• Corrosion-resistant metal construction for longevity.
• Wear-resistant internal components to maintain consistent control.
• Engineered for stable pressure performance under thermal cycling.

How easy is installation and replacement?

The regulator follows the original equipment mounting and connection layout so experienced DIYers or technicians can replace it with standard hand tools. Basic mechanical knowledge and following OEM safety steps (relieve fuel pressure, disconnect battery) are recommended.

• Simple bolt-on replacement for compatible models.
• Matches common OEM connection points and dimensions.
• Follow vehicle-specific service manual for fuel-system procedures.

Who is this product for: Drivers, mechanics and fleet managers who need a reliable, OEM-style replacement fuel pressure regulator for compatible GM trucks and SUVs. It’s well suited for those restoring proper fuel pressure after regulator failure, upgrading worn components, or maintaining older vehicles where original parts are degraded. Always confirm compatibility with vehicle year, engine size, and OEM part numbers before purchase.