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Product details
Part NameFuel Injector
BrandWalker Products
Part Number550-2043
UPC00724620131783
Estimate Delivery Date
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If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.
Walker Genuine OE Fuel Injectors are original equipment components sourced directly from the same manufacturing lines that supply global vehicle assembly plants. Unlike reengineered or aftermarket alternatives, these injectors represent the exact part specified by the vehicle’s engineering team—ensuring precise flow rate, spray pattern, coil resistance, and ECU-matched response characteristics. Each injector is manufactured using OEM-grade materials and validated production processes, including rigorous testing for leakage, atomization, and electrical integrity. Designed to maintain factory engine performance, fuel economy, and emissions compliance, Walker Genuine OE Fuel Injectors deliver unmatched reliability and seamless system integration. With exact fitment and no calibration or installation guesswork, these components are the trusted choice for critical repairs where performance and precision cannot be compromised. Ideal for fleets, diagnostics-driven repairs, or customers demanding authentic OE quality, Walker’s Genuine OE program ensures the part you install is the part the vehicle was born with.
Characteristics include:
Authentic OE Performance: Supplied directly from the original vehicle manufacturer to ensure factory-accurate fuel delivery and spray pattern.
Exact Vehicle Match: Built to original assembly specs for precise fitment, flow rate, and electrical compatibility with factory ECU calibration.
100% Genuine OE: Sourced through validated OEM supply chains—no aftermarket substitutions or equivalents.
Trusted Quality Assurance: Same part, same quality, same performance as installed on the production line—no compromises.
Engineered for System Integrity: Supports full engine performance, emissions control, and drivability as originally designed.
Watch genuine customer videos showing their upgrades and honest results of similar products
Fitment Table
This product is compatible with these vehicles:
Year
Make
Model
Notes
Position
2002
Mercury
Cougar
2.5L
V engine
6 cylinders
3.24" bore
3.13" stroke
2001
Ford
Explorer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
2001
Mazda
MPV
2.5L
V engine
6 cylinders
3.24" bore
3.13" stroke
2001
Mercury
Cougar
2.5L
V engine
6 cylinders
3.24" bore
3.13" stroke
Engine VIN code L
2001
Mercury
Mountaineer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
2000
Ford
Explorer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
2000
Mazda
MPV
2.5L
V engine
6 cylinders
3.24" bore
3.13" stroke
2000
Mercury
Mountaineer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
1999
Ford
Explorer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
1999
Mercury
Mountaineer
5.0L
V engine
8 cylinders
4.00" bore
3.00" stroke
See what other customers say:
Customer Reviews
Overall rating: 4.9 / 5 from 594 reviews.
I love PartsPioneer. The rear-wheel Positive Plus pads and Genius rotors fit perfectly on my 2019 Subaru Forester. Excellent quality at a fair price. Highly recommended.
Thanks for catching an error in my order and righting it for me, complete with email to say so! This … is what customer service head and shoulders above, looks like !! Well done all !!
Service was great, appreciated the phone call to confirm the vehicle. Parts arrived quick. OEM fit. Will be ordering brakes as you can see by the picture. Very impressed.
I have bought this rotor on part pioneer for my Q3 and installed and used for over a week, they are amazing no squeaks no noises brakes have improved 110%. This rotors are the best so far I’ve always bought rotors and used in all three of my cars and so far these ones are the best that I have ever bought.
Thanks
Renato
Awesome parts, for a great deal, and the customer service is second to none, always willing to help, and they double check fitment to ensure you always get the right parts! Will definitely be ordering again.