GEARCESS Spider Fuel Injector Kit for Chevy/GMC 8-Cylinder 5.0L/5.7L (1996–2000) — Direct-Fit with Seals & Hardware

This complete injector kit is designed specifically for Chevrolet and GMC V8 platforms—covering C/K trucks, Suburban, Tahoe, Yukon, Express, and Savana models within the 1996–2002 fitment window where applicable. Each injector matches the OEM form, fit and function for the listed reference part numbers (for example 25340347, 17114163, FJ10566) so you can replace worn units without modifying the fuel rail or engine harness. The assembly is factory-tested and supplied with the seals and hardware needed for a full service job.

Which vehicles and engines will this GEARCESS injector kit fit?

The kit fits 8-cylinder Chevrolet and GMC vehicles with 5.0L and 5.7L V8 engines built in the late 1990s. It covers many C/K pickups, Suburban, Tahoe, Yukon, P-series, and Express/Savana vans across the specified years. Confirm compatibility by cross-checking the listed reference numbers or submitting your VIN.

• Fits: 1996–2000 C1500/C2500, 1996–1999 K-series and P30
• Also fits: 1996–2000 Tahoe, 1996–1999 Suburban and Yukon models
• Vans: 1996–2002 Express 1500/2500/3500 and Savana 1500/2500/3500
• Important: Not compatible with Vortec 4.3L V6 injectors

How does this injector kit restore engine performance?

Fuel injectors deliver a precise spray pattern so fuel mixes evenly with intake air. When injectors are worn, holes plug or spray becomes erratic, causing rough idle, reduced throttle response, and higher emissions. Replacing the spider injector assembly returns proper atomization and flow balance across all eight cylinders.

• Direct-fit replacement to restore OEM spray pattern and flow
• Includes seals and mounting hardware for a complete service
• Manufactured and tested to match original durability and service life

What parts and reference numbers are included or supported?

The package corresponds to a broad set of OE cross-references so you can verify fitment using old part numbers or a dealer lookup. The kit contains the injector assembly components required for a full spider replacement, not individual injectors sold separately.

• Key cross-references: 25340347, 17114163, FJ10566, 89060440 and more
• Included components: injector assembly with seals and mounting pieces for 8 cylinders
• Labeling matches common OE numbers to ease compatibility checks

What should I check before ordering or installing this injector kit?

Confirm your engine displacement and model year, since the injector is not interchangeable with V6 Vortec units. If in doubt, use the vehicle VIN for a fitment check or compare your existing part number to the kit references. Professional installation is recommended to ensure proper torque and sealing.

• Verify engine: 5.0L or 5.7L V8 only (not Vortec 4.3L V6)
• Use VIN or existing part number for fitment confirmation
• Replace seals and follow manufacturer torque specs on installation

Who this is for: The GEARCESS FJ504 spider injector kit is aimed at DIY mechanics, independent repair shops, and fleet managers who service late-1990s Chevrolet and GMC trucks, SUVs, and vans with 5.0L or 5.7L V8 engines. It’s especially useful when multiple injectors show wear or when OEM part numbers match the provided cross-references. If you need help confirming fitment, provide your VIN and the seller can verify compatibility before purchase. GEARCESS backs this product with a one-year quality support policy and conducts quality checks to help you get back on the road with reliable fueling performance.