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โก Power your V8 with precision โ donโt let your ride settle for less!
The FJ504 Spider Fuel Injector is a high-precision, OE-spec replacement injector engineered for Chevy and GMC 5.0L and 5.7L V8 engines from 1996 to 2002. Featuring durable machined metal construction and a dual-port poppet valve design, it ensures optimized fuel delivery and reliable performance across a wide range of popular truck and SUV models. Designed for easy installation with compression and flare connections, this injector is your go-to for restoring factory-level engine efficiency.








| ASIN | B0B8Z9BC9B |
| Best Sellers Rank | #293,793 in Automotive ( See Top 100 in Automotive ) #487 in Automotive Replacement Fuel Injectors |
| Brand | GELUOXI |
| Brand Name | GELUOXI |
| Customer Reviews | 3.7 out of 5 stars 102 Reviews |
| Exterior Finish | Machined |
| Included Components | Fuel Injector |
| Inlet Connection Type | Compression |
| Item Dimensions | 6.3 x 5.5 x 15 inches |
| Item Type Name | Spider Fuel Injector |
| Item dimensions L x W x H | 6.3 x 5.5 x 15 inches |
| Manufacturer | GELUOXI |
| Manufacturer Part Number | 17114163 25340347 89060440 |
| Manufacturer Warranty Description | 1 |
| Material | Metal |
| Material Type | Metal |
| Model Number | FJ504 Spider Fuel Injector |
| Number of Ports | 2 |
| Outlet Connection Size | 0.13 Inches |
| Outlet Connection Type | Flare |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | oe |
| Thread Size | 0.125 inches |
| Thread Type | NPT |
| UPC | 604969165703 |
| Unit Count | 1.0 Count |
| Valve Type | poppet valve |
F**A
just as described
worked exactly as its suppose to
C**5
Complete garbage cracked plastic housing do not purchase this junk.
Absolute trash, plastic housing cracked after two weeks, engine would not run. Had to redo the entire job because of these horrible parts that aren't even strong enough to hold 60 PSI fuel pressure. You can see here countless complaints about the same issue. Return window closed after a week because they know these parts are junk. Try parts geek instead. Extremely disappointed having the do the entire job twice.
T**R
Product works and price reflecs quality.
While installing the new injector assembly the plastic broke in three places. The tabs that hold it in place broke, one of these studs broke for the fuel lines and part of the plastic housing broke as well. Still usable but frustrating. The factory gasket would not work at all, it's an O-ring and very oversized! I suggest ordering a felpro o-ring kit for $17 to go with this product. The plastic seems brittle so be careful installing
D**E
Worth buying.
Good price, good product
S**T
Same
Awesome
K**K
Fake, and broken
Nowhere on the actual product does it say Delphi, and it came broken, it wouldnโt hold fuel pressure at all even after changing pressure regulator. Got a new one from autozone instead and havenโt had any issues
V**R
fit
works great
M**E
Recommend work great
Works great just had to reconnect most of the wires due to them not being clipped on properly. Donโt assume they are locked in double check them
A**O
Mala calidad
Mala calidad del producto, los inyectores es imposible moverlos con la herramienta que viene para eso y los capuchones de los inyectores no se mantienen en su lugar No lo recomiendo
C**M
Perfect fit
Converted to MPFI on my 1997 GMC 1500 with 5.7. Starting issue is solved and runs great.
L**A
poor quality, BUY OEM! WORKED FOR A MONTH.
I am sure I speak for most when I say, " we buy from Amazon and their suppliers because of $$ saved". I received this part for my 99 suburban on Dec. 18th. I know I installed correctly as I followed the instructions and seaked out more info. After diaganosing my trucks misfire, and eliminating all other factors, the new part I purchased worked for a month. I am writing this review because if you are considering on doing this job yourself, yo understand that it is pretty much a full day of work. raw fuel in cylinder #5!!! DON'T WASTE YOUR TIME AND OR MONEY. BUY QUALITY PARTS FROM YOUR DEALER OR REPUTABLE MANUFACTURER. BELIEVE ME YOU DON'T WANT TO DO THIS JOB TWICE. DNACC
M**Y
VERY POOR FIT
Had to actually shim the height in order to get it to fit right. Once it was properly installed, seems to work fine. EDIT:Months later, fuel trim for left bank is clay high....got a leaky injector... DO NOT BUY.
Trustpilot
2 weeks ago
3 weeks ago