DeatschWerks 18U-04-0550-4 550cc Injectors Honda Acura B D F H Series OBD I II

Vehicle Fitment

• 1992-2000 Honda Civic (EG/EK) - All B-series and D-series engines, OBD I & II
• 1993-1997 Honda Del Sol - D-series and B-series engines, OBD I & II
• 1992-2001 Honda Prelude - H22A, F22A, F22B, OBD I & II
• 1990-2002 Honda Accord - F-series and H-series engines, OBD I & II
• 1991-2001 Acura Integra (OBD I & II) - All B-series engines (B18A1, B18B1, B18C1, B18C5)

Fitment Notes

• Fits all Honda/Acura OBD I and OBD II top-feed fuel injector applications using the B-, D-, F-, or H-series engine family - mates directly to the OEM fuel rail, intake manifold, and wiring harness with no modification required
• USCAR connector - compatible with OEM Honda/Acura harnesses across all listed OBD I and OBD II platforms
• High-impedance injectors - compatible with all OEM and aftermarket ECUs (Hondata, Neptune, AEM, etc.) without resistor packs
• Does NOT fit K-series engines (K20, K24) - those require a different injector body; see DW 17U-08-0550-4 or 16MX-03-1250-4
• Does NOT fit OBD0 (pre-1992) Honda/Acura engines - those use a different injector connector
• Tuning is required after installation - tuning data is available on the DeatschWerks website
• Not legal for sale or use in California on pollution-controlled motor vehicles (no CARB EO)

Features

• 550 cc/min flow rate - well suited to turbocharged or supercharged B/D/F/H-series builds pushing beyond the limits of OEM injectors
• Set of 4 - covers all four cylinders of the B-, D-, F-, and H-series inline-4 engines
• Dynamically flow matched to within 2% variation across the set for balanced fueling and smooth idle
• Drop-in OEM fit - engineered to fit stock Honda/Acura OBD I and OBD II fuel rails and harnesses without modification
• Stainless steel internals - fully compatible with pump gasoline, E85, and methanol blends
• Full tuning data available at deatschwerks.com - compatible with Hondata, Neptune, AEM, Haltech, and other ECU platforms
• Limited Lifetime Warranty

Specifications

• Part Number: 18U-04-0550-4
• Flow Rate: 550 cc/min (52.2 lb/hr @ 43.5 PSI)
• Connector Type: USCAR
• Injector Style: Top Feed
• Impedance: High
• Quantity: Set of 4
• Compatible Engine Families: Honda/Acura B-series, D-series, F-series, H-series (OBD I & II)
• Fuel Compatibility: Gasoline, E85, Methanol blends
• Flow Matching Tolerance: Within 2% dynamic variation
• Tuning Data: Available at deatschwerks.com
• CARB Approved: No
• Warranty: Limited Lifetime

Included Components

• 4x DeatschWerks 550cc Top Feed Fuel Injectors (USCAR connector)
• O-rings and seals

Product Description

The DeatschWerks 18U-04-0550-4 is a matched set of four 550cc/min top-feed fuel injectors engineered for Honda and Acura OBD I and OBD II platforms using B-, D-, F-, or H-series engines - covering the Civic EG/EK (1992-2000), Del Sol (1993-1997), Prelude (1992-2001), Accord (1990-2002), and Acura Integra (1991-2001). All four injectors drop directly into the OEM fuel rail, manifold, and wiring harness of these applications using the USCAR connector native to OBD I and II Honda/Acura vehicles - no modification required.

At 550cc/min, this set is a popular choice for turbocharged and supercharged B/D/F/H-series builds where factory injectors have been outgrown. Stainless internals provide full E85 and methanol compatibility. Every set is dynamically flow matched to within 2% and full tuning data is available on the DeatschWerks website for use with Hondata, Neptune, AEM, Haltech, or any other ECU platform. Note: these injectors do not fit K-series engines or pre-1992 OBD0 Honda/Acura applications. Tuning is required after installation. Not CARB-approved.