NGK NTK 24354 Upstream Air Fuel Ratio Sensor for 06-07 Mazdaspeed6 2.3L Turbo

Vehicle Fitment

• 2006-2007 Mazda Mazdaspeed6 (2.3L L4 Turbocharged, All Trims)

Fitment Notes

• Upstream position only -- Bank 1, Sensor 1 (pre-catalytic converter)
• Replaces Mazda OE part number L3M6188G1F (supersedes L3M6188G1A, L3M6188G1D, L3M6188G1E)
• Cross-references: Denso 234-5014, Bosch 15782, CarQuest 75-4020
• OE-identical direct fit -- no modifications or adapters required

Features

• OE Identical design -- same specification as the factory-installed sensor
• Wideband AFR sensing -- delivers precise air/fuel ratio output to ECU
• Dual-coated platinum sensing element -- extended durability and fast response
• Planar sensor design -- compact, lightweight, heats up faster than thimble sensors
• 4-wire heated design -- rapid warm-up for accurate closed-loop operation
• OEM-spec connector and hardware -- plug-and-play installation
• Individually tested -- 100% quality verified before leaving the factory

Specifications

• Part Number: 24354
• Brand: NGK / NTK
• Sensor Type: Wideband Air/Fuel Ratio (AFR)
• OE Reference: L3M6188G1F (Mazda)
• Position: Upstream -- Bank 1, Sensor 1
• Wire Count: 4-wire
• Heated: Yes
• Sensing Element: Planar, dual-coated platinum
• Application: 2006-2007 Mazda Mazdaspeed6 2.3L Turbo

Included Components

• 1x Upstream air/fuel ratio sensor
• 1x OEM-spec connector with pigtail

Product Description

The NGK NTK 24354 is an OE-identical upstream air/fuel ratio sensor built specifically for the 2006-2007 Mazda Mazdaspeed6. This wideband AFR sensor serves as Bank 1, Sensor 1 -- the primary feedback sensor that feeds the ECU real-time air/fuel ratio data for closed-loop fuel management. When this sensor degrades or fails, symptoms typically include a loping idle, jerky low-speed acceleration, and reduced fuel economy, while wide-open throttle performance remains relatively unaffected as the ECU switches to open-loop operation. Replacing it with the NTK 24354 restores precise closed-loop fueling and eliminates associated fault codes.

The planar, dual-coated platinum sensing element heats to operating temperature faster than conventional thimble-style sensors, improving accuracy during cold starts and short-trip driving. The OE-spec 4-wire connector and pigtail allow direct plug-in installation with no splicing or adapters required. NGK/NTK individually tests every sensor before shipment to guarantee output accuracy. This is the same sensor supplied to Mazda for factory installation -- available at a significant discount over OEM dealer pricing.