Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHOLLEYPART NUMBER: 510-522-121
120 lb/hr Performance Fuel Injector Bosch/EV1 Style
$11895
Ships on 09/09/2026
Lowest Price GuaranteeLow Impedance 120 lb. Injectors
120 lb/hr Performance Fuel InjectorHolley EFI Fuel Systems & Compatible ECUs Flow Rated 120 lb/hr at 43 PSI Bosch/EV1 Jetronic Style Body Precision Lapped Disc Valve, Brass Windings High-Temp O-Rings, Tri-Cone Spray
The Holley 522-121 is a 120 lb/hr performance fuel injector built for Holley EFI and other high-impedance-compatible engine management systems.
Holley 522-121 Features:
- Flow rated at 120 lb/hr at 43 PSI.
- Bosch/EV1 (Jetronic) style body with high-temp O-rings.
- Precision lapped disc valve with high-quality brass windings.
- Tri-cone spray pattern for excellent low-pulse-width linearity.
- Sold individually.
Precision Fuel Injectors for Maximum Flow
Holley Fuel Injectors deliver exceptional fuel flow with unlimited flow rate options, allowing your street-driven to race applications to reach maximum performance gains. The uncompromised quality of Holley's fuel injectors makes them the perfect choice for your fuel injection needs.
Part TypeFuel Injector
Product LineHolley Fuel Injectors
BrandHOLLEY
Package Height2.1
Package Width5.0
Package Length7.0
Weight0.21 PG
Part CategoryPerformance Parts
Wiring Harness IncludedNo
Overall Height2.850 in.
Fuel Rate120 lbs./hr
Injector Plug StyleJetronic/Minitimer
QuantitySold individually
O-Rings IncludedYes
Injector ImpedanceLow
Driver TypeSaturated
Injector Advertised Flow Rate (Lbs./Hr.)120
Type/SeriesEV1
Part FitmentUniversal
Outside Diameter0.97 in (24.6 mm)
Vendor Part Number522-121
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
HOLLEY
534-104 Fuel Injector O-Rings For Delphi & Holley Top Fed Multi-Port Injectors
Part Number : 510-534-104
$2804
HOLLEY
Part Number : 510-534-104
$2804
Some parts are not legal for use in California or other states with similar laws / regulations
