JBphxior Spider Fuel Injectors FJ504 replacement for 1996–2002 Chevy GMC 5.7L V8 — direct fit, matched set with brackets

JBphxior Spider Injectors FJ504 are direct-fit fuel injectors engineered to replace the original injectors on many 1996–2002 Chevrolet, GMC, Cadillac and Isuzu V8 5.0L/5.7L engines.

If your truck or van with a 5.0L or 5.7L V8 is showing hesitation, rough idle, or decreased efficiency, swapping to a matched set of quality replacement injectors can restore more reliable fuel delivery. These injectors are sold as compatible replacements for numerous GM and related models from the late 1990s through 2002 and include mounting brackets and an industry-standard OEM cross-reference list to help confirm fitment.

Which vehicles will these JBphxior Spider Injectors fit?

These injectors are specified for many Chevrolet and GMC full-size trucks, vans and SUVs equipped with 5.0L or 5.7L V8 engines from 1996–2002, plus a few related models. Use the part cross-reference or VIN-based fitment to verify compatibility before purchase.

• Typical fits: C1500/C2500/C3500, K1500/K2500/K3500, Tahoe, Suburban, Yukon.
• Vans: Express 1500/2500/3500 and Savana 1500/2500/3500 (1996–2002).
• Other: 1999–2000 Cadillac Escalade base and select Isuzu NPR models.
• OEM references provided: FJ504 and several cross-reference numbers for quick confirmation.

How do these injectors affect engine performance and fuel use?

Properly functioning injectors deliver the right pulse and spray pattern so the engine receives consistent fuel metering. Replacing worn or leaking injectors helps reduce misfires, wasted fuel, and sticky deposits that can harm drivability, while restoring smoother idle and throttle response.

• Restores consistent fuel spray and atomization.
• Helps reduce fuel wastage and uneven combustion.
• Includes bracket hardware to prevent leaks and ensure secure mounting.
• Sold as matched units sized for the specified V8 applications.

What installation and compatibility details should I check before buying?

Confirm your engine displacement, model year range, and connector type prior to ordering. The package includes a bracket—install it on each injector as instructed to maintain correct alignment and to avoid oil or fuel seepage around the rail area.

• Verify year, model and 5.0L/5.7L engine fitment for your vehicle.
• Inspect electrical connector and fuel rail port dimensions for a direct match.
• Use the OEM part numbers provided to cross-check with dealer or repair manual.
• Follow torque and sealing recommendations during installation to prevent leaks.

What warranty and after-sales options are included?

JBphxior backs these Spider Fuel Injectors with a one-year quality coverage: defects identified within that period are eligible for replacement. Keep proof of purchase and report any suspected manufacturing faults to the seller to start a return or replacement.

• One-year replacement coverage for manufacturing defects.
• Customer support available for fitment and installation questions.
• OEM cross-reference list included for easier part verification.
• Sold as replacement injectors with mounting brackets in the package.

Who is this for: These JBphxior Spider Injectors are intended for owners, mechanics and restoration projects working on late-1990s to early-2000s GM full-size trucks, vans and SUVs with 5.0L or 5.7L V8 engines who need direct-fit replacement injectors. If you’re diagnosing rough idle, poor fuel economy, or intermittent misfire issues and want a matched set that uses common OEM cross-references and includes mounting hardware, this product is a practical option. Always confirm fitment by model year, engine size and OEM number before installation to ensure a correct match.