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Vehicle Info NeededHOLLEYPART NUMBER: 510-522-421
42 lb/hr Performance Fuel Injector Bosch/EV1 Style
$10595
Ships on 09/09/2026
Lowest Price GuaranteeHigh Impedance 42 lb. Injectors
42 lb/hr Performance Fuel InjectorHolley EFI Fuel Systems & Compatible ECUs Flow Rated 42 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 522-421 is a 42 lb/hr performance fuel injector built for Holley EFI and other high-impedance-compatible engine management systems.
Holley 522-421 Features:
- Flow rated at 42 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.
Part TypeFuel Injector
BrandHOLLEY
Package Height2.1
Package Width3.6
Package Length3.8
Weight0.21 PG
Part CategoryPerformance Parts
Wiring Harness IncludedNo
Overall Height2.850 in.
Fuel Rate42 lbs./hr
Injector Plug StyleJetronic/Minitimer
QuantitySold individually
O-Rings IncludedYes
Injector ImpedanceHigh
Driver TypeSaturated
Injector Advertised Flow Rate (Lbs./Hr.)42
Type/SeriesEV1
Part FitmentUniversal
Outside Diameter0.97 in (24.6 mm)
Vendor Part Number522-421
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
