1 8

Spider Fuel Injector FJ503 4.3L V6 for Chevy/GMC – Replaces 12568332

Spider Fuel Injector FJ503 4.3L V6 for Chevy/GMC – Replaces 12568332

$147.72 USD
$147.72 USD
Sale Sold out
Taxes included.

About this item

  • 🔧🚘 Compatible with 4.3L V6 Vortec engines: Chevrolet Astro/Blazer (1996-2005), Express 1500/2500 (1996-2004), S10 (1996-2004), Silverado 1500 (1999-2004), C1500/K1500 (1996-1998), P30 (1996-1999); GMC Safari (1996-2005), Jimmy/Sonoma (1996-2002), Savana 1500/2500 (1996-2004), Sierra 1500 (1999-2004), C1500/K1500 (1996-1998), P3500 (1996-1999); Isuzu Hombre (1997-2000); Oldsmobile Bravada (1996-2001). Check your year and engine size – 4.3L V6 only
  • 🔧🚘 Replaces OE numbers: 19210688, 12568332, 88894353, FJ503, FJ10565, 217-3028, 2173252, 25331863, 240408, 833-22102-6, 800-1512N, 17113673, 17091628, 17115379, 169706, and more. Check your old injector – if it has any of these numbers, this is a direct fit
  • 🔧🚘 Multi-port (MPFI) design delivers fuel directly to each cylinder for better atomization, improved combustion, and increased horsepower. Helps prevent fuel leaks, reduces waste, and minimizes sticking for smoother idle and better throttle response. Simply bolt it in, no tuning or programming needed
  • 🔧🚘 Built with corrosion-resistant stainless steel internals, precision solenoid windings, and high-temp O-rings for reliable sealing under extreme heat. Specifications: Dynamic flow rate 55-63 ml/min, coil resistance 12.5±1Ω, leakage ≤0.8KPa/25s, O-rings pre-installed. Important: A mounting bracket is included – you MUST attach it to the injector BEFORE installation to prevent oil leakage and misalignment
  • 🔧🚘 1-year warranty – free replacement for any defect. Please note: This injector is NOT for 5.7L V8 Vortec engines – they look similar but are not interchangeable. Not sure about fitment? Send us your VIN and we'll confirm within 24 hours

Overview

  • Brand: WSYINGWSXF
  • Item dimensions L x W x H: 14.2 x 6.6 x 5.3 inches
  • Number of Ports: 6
  • Unit Count: 1 Count
  • Item Highlight: Astro/Blazer/Express/Silverado, GMC Safari/Savana/Sierra/Sonoma, Isuzu Hombre, Oldsmobile Bravada 1996-2006” Astro/Blazer/Express/Silverado, GMC Safari/Savana/Sierra/Sonoma, Isuzu Hombre, Oldsmobile Bravada 1996-2006”
  • Number of Items: 1
  • UPC: 768924463294

Low stock: 10 left

View full details

Reviews

  • ⭐⭐⭐⭐⭐

    Ethan Parker — Columbus, Ohio

    The products were easy to browse, and the specifications helped me compare the options before ordering. Everything arrived as expected and worked well for my garage project. I would shop with WrenchVanta again when I need more parts or tools.

  • ⭐⭐⭐⭐⭐

    Marcus Bennett — Phoenix, Arizona

    I ordered several maintenance items and was pleased with the overall experience. The product information was clear, the items were packaged securely, and everything fit the needs of my project. A practical store for automotive and garage essentials.

  • ⭐⭐⭐⭐⭐

    Olivia Turner — Tampa, Florida

    WrenchVanta offers a useful range of products without making the shopping process feel complicated. I found what I needed for routine vehicle maintenance, and the order arrived in good condition. The entire process was straightforward and convenient.

  • ⭐⭐⭐⭐⭐

    Daniel Foster — Sacramento, California

    I picked up a few tools and replacement parts for an ongoing garage project. The products matched their descriptions and have been useful so far. I especially appreciated being able to find different types of automotive supplies in one place.

New Arrivals

View all

FAQ

How can I confirm that a part will fit my vehicle?


Review the fitment information, dimensions, specifications, part numbers, and compatibility notes shown on the product page before ordering. Vehicle requirements can vary by year, make, model, engine, trim, and configuration. If you are unsure, consult a qualified mechanic or contact us before placing your order.

Do you sell products for motorcycles and ATVs?


Yes. WrenchVanta carries products for motorcycles and ATVs, including selected body, engine, drivetrain, brake, suspension, electrical, lighting, exhaust, storage, and protective accessories. Always check the product description to confirm its intended application.

How can I track my order?


Once tracking information becomes available, it will be sent to the email address provided at checkout. Tracking activity may take some time to appear after the carrier receives the shipment. You may also contact us if you need help locating your tracking details.

Can items from the same order arrive separately?


Yes. Products may be stored or fulfilled from different locations, so an order containing multiple items may arrive in separate packages and on different dates. When available, separate tracking information will be provided for each shipment.

Can I change or cancel an order after placing it?


Contact us as soon as possible if you need to change or cancel an order. We will try to accommodate your request, but changes and cancellations cannot be guaranteed once processing or shipment has begun.

What should I do if my order arrives damaged, defective, or incorrect?

Contact us promptly at nuaialmvauaoama@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep the product and original packaging until we provide further instructions.

What is your return and refund process?


Return eligibility depends on the item’s condition, return reason, and the requirements stated in our Return & Refund Policy. Contact us before returning any product to request instructions. Items sent back without authorization may not be accepted.

Do you provide installation services or technical advice?


WrenchVanta does not provide installation services. Product information is offered for general shopping purposes and should not replace professional mechanical advice. Safety-critical, electrical, performance, or technically demanding components should be inspected and installed by a qualified professional.

Are oils, fluids, paints, and other chemical products subject to shipping restrictions?


Some oils, fluids, paints, aerosols, batteries, and chemical products may be restricted in certain locations or require special shipping methods. Availability and delivery options may depend on the product, destination, and carrier regulations. Any applicable restrictions will be handled during order processing.

How can I contact WrenchVanta?

You can email us at nuaialmvauaoama@gmail.com or call +1 (936) 260-5549. Please include your order number when contacting us about an existing purchase so we can assist you more efficiently.

Blogs & Tips

View all
  • How to Extract a Rounded Exhaust Bolt Without Making the Repair Worse

    How to Extract a Rounded Exhaust Bolt Without M...

    Learn how to safely extract a rounded exhaust bolt without damaging surrounding components or threaded holes. This practical step-by-step guide covers cleaning, extraction sockets, controlled heat, drilling, and thread inspection.

    How to Extract a Rounded Exhaust Bolt Without M...

    Learn how to safely extract a rounded exhaust bolt without damaging surrounding components or threaded holes. This practical step-by-step guide covers cleaning, extraction sockets, controlled heat, drilling, and thread inspection.

  • How to Remove a Rounded Exhaust Bolt Without Damaging the Header

    How to Remove a Rounded Exhaust Bolt Without Da...

    Learn how to remove a rounded exhaust bolt without damaging the exhaust system or aluminum threads. This step-by-step guide covers extraction tools, heat, penetrating oil, and safe drilling techniques.

    How to Remove a Rounded Exhaust Bolt Without Da...

    Learn how to remove a rounded exhaust bolt without damaging the exhaust system or aluminum threads. This step-by-step guide covers extraction tools, heat, penetrating oil, and safe drilling techniques.

  • How to Remove a Rounded-Off Exhaust Bolt Without Making It Worse

    How to Remove a Rounded-Off Exhaust Bolt Withou...

    Learn how to remove a rounded-off exhaust bolt without damaging the surrounding components. This practical guide covers penetrating oil, extractor sockets, controlled heat, and advanced removal techniques.

    How to Remove a Rounded-Off Exhaust Bolt Withou...

    Learn how to remove a rounded-off exhaust bolt without damaging the surrounding components. This practical guide covers penetrating oil, extractor sockets, controlled heat, and advanced removal techniques.

1 3
View all