RLP Fuel Injectors Set of 2 for V8 5.7L — Direct-Fit Replacement for 17111864/17112494, Restores Fuel Delivery

RLP set of two fuel injectors engineered to replace OE parts 17111864 and 17112494 for V8 5.7L applications, restoring proper fuel delivery and engine performance when fitted to compatible vehicles.

If you are troubleshooting rough idle, misfires, or reduced fuel economy on compatible late-1980s to mid-1990s GM and Isuzu V8 5.7L engines, this RLP pair of fuel injectors offers a direct-fit replacement option built to meet or exceed original equipment specifications. Each injector is manufactured with high-quality materials and undergoes strict quality control so it can be used during routine maintenance or as a like-for-like repair to bring a fuel system back to factory-style operation.

Which vehicles and part numbers do these injectors match?

These injectors are designed as compatible replacements for a long list of GM and related vehicles from the late 1980s to mid-1990s. They cross-reference OE numbers and common aftermarket codes so installers can verify fit before purchase.

• Replaces OE / aftermarket numbers: TJ7, 17111864, 17112494, 19110538, 57202.
• Compatible Buick: 1992–1993 Commercial Chassis, Roadmaster.
• Compatible Cadillac: 1990–1992 Brougham, 1993 Commercial Chassis, Fleetwood models.
• Compatible GMC, Chevy, Isuzu, Oldsmobile: wide coverage for Blazer, C/K trucks, Suburban, Yukon, P/R/V chassis, Isuzu NPR, Olds Custom Cruiser across listed years.

How do these injectors affect engine performance?

Correctly functioning injectors deliver the precise spray pattern and volume required by the engine management system. Replacing worn or leaking injectors reduces misfires, restores smoother idling, and can improve drivability and fuel economy when other systems are in working order.

• Restores consistent fuel spray and atomization for combustion balance.
• Helps eliminate cylinder-specific power loss and rough running.
• Works with original fuel rails and electrical connectors on listed vehicles.

What should I check before installing these replacement injectors?

Confirming vehicle compatibility and inspecting related fuel system parts avoids repeat work. Always verify part fitment using your vehicle’s year, make, model, and trim and examine seals, wiring, and the fuel rail for wear or contamination before installation.

• Use the vehicle fitment tool (e.g., Amazon Garage) to confirm exact match.
• Inspect injector O-rings, fuel rail condition, and electrical connectors.
• Replace fuel filters and clean fuel supply if injectors were contaminated.

What warranty and support does RLP provide?

RLP includes a limited 12-month warranty with this injector set and offers customer support to address fitment or functional questions. If you encounter issues, contact the seller through the marketplace messaging channel for assistance and troubleshooting.

• 12-month warranty included with purchase.
• Seller response commitment via Amazon messages within 12 hours.
• Recommended to save order and vehicle info when requesting support.

Who is this for: This RLP two-piece fuel injector set is intended for DIY mechanics, independent repair shops, and classic truck or SUV owners who maintain late-1980s to mid-1990s GM, Isuzu, and Oldsmobile V8 5.7L vehicles. It suits anyone seeking a direct replacement for OE numbers 17111864 or 17112494 and who will verify fitment against their exact year, model, and trim before installation. If you want a like-for-like injector swap with a backed warranty and clear cross-reference numbers, this set is a practical option.