NTK
Direct Fit Oxygen Sensor

NTK 24254 Oxygen Sensor - Downstream

Brand NTK 24254
Position Downstream
Mounting Type Threaded
Sensor Type Heated
Thread Diameter 18.000
Universal Or Specific Fit Specific
Wire Quantity 4
Wiring Harness Length 20.2500
Product line Direct Fit Oxygen Sensor
Fits Acura · 2 vehicles

Direct fit replacement. Specific fit and threaded mounting simplify installation.

Heated sensor. Helps the oxygen sensor reach operating temperature quickly.

OE-spec tested. Manufactured to meet or exceed original equipment standards.

Cross-references Bosch 15408, Bosch 15948 and Delphi ES20215 for the same application. See all 13.

$115.22Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $115.22
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Free returns within 60 days if it doesn't fit when fitment is verified.

Direct Fit Oxygen Sensor for Acura RSX

NTK 24254 is a direct fit heated oxygen sensor built for specific applications, including the 2005-2006 Acura RSX downstream position. It is engineered to match OE-style fit, form, and function for accurate exhaust monitoring and dependable replacement service.

Key Features

  • Direct fit oxygen sensor for specific vehicle applications
  • Heated sensor design for faster operating response
  • 4-wire configuration with a 20.25 in. wiring harness
  • Threaded mounting type with 18 mm thread diameter
  • Built to meet or exceed OE specifications during manufacturing
  • Compatible with 2005-2006 Acura RSX downstream oxygen sensor replacement

Product Details

NTK Direct Fit Oxygen Sensor 24254 is part of NTK’s direct replacement line, which focuses on OE-style application coverage and simplified selection for import and domestic vehicles. NTK uses ceramic manufacturing expertise and controlled production processes to deliver sensors with consistent fit and function. For drivers searching for a 2005-2006 Acura RSX downstream oxygen sensor, this part provides a specific-fit solution for the B1S2 location.

This part cross-references Bosch 15408 and DENSO Auto Parts 234-4354 for the same application.

Common Replacement Uses

  • Check engine light related to downstream oxygen sensor performance
  • Fault codes tied to exhaust oxygen monitoring
  • Incorrect air-fuel feedback from a worn heated O2 sensor
  • Emissions inspection failures caused by sensor degradation
  • Restoring proper sensor response on a 2005-2006 Acura RSX

Installation Notes

Verify the downstream location and connector match before installation. The threaded mounting design and 4-wire heated configuration should be checked against the original sensor on the vehicle. For best results, confirm the part number 24254 against the existing application data for your Acura RSX before replacement.

Quality Assurance

NTK is a major original equipment oxygen sensor manufacturer and tests sensors during production to help ensure quality and reliability that meet or exceed OE specifications. The NTK 24254 oxygen sensor is backed by that OE-focused manufacturing approach for 2005-2006 Acura RSX downstream service.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006AcuraRSX2.0LL4DownstreamB1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor
2005AcuraRSX2.0LL4DownstreamB1S2 oxygen sensor meets OEM standards.; Direct Fit Oxygen Sensor
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15408Bosch — 15948Delphi — ES20215DENSO Auto Parts — 234-4354Dixie Electric Ltd — 15956EXEDY Racing Clutch — 1595275-350575-350875-351036532PNDA1136532PNDA2136532PRBA11SG1748