NTK
Direct Fit Oxygen Sensor

NTK 24595 Oxygen Sensor - Downstream or Upstream

Brand NTK 24595
Position Downstream and Upstream
Wiring Harness Length 9.0000
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Type Flange
Product line Direct Fit Oxygen Sensor
Fits Toyota · 17 vehicles

Direct fit design. Built for specific applications with OE-style fit, form, and function.

Heated sensor. 4-wire construction with a 9-inch harness for clean signal and heater routing.

OE manufacturing background. NTK applies extensive testing to support quality and reliability.

Cross-references Bosch 13104, Delphi ES20119 and DENSO Auto Parts 234-4154 for the same application. See all 12.

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Direct Fit Oxygen Sensor for Toyota Applications

NTK 24595 is a direct fit oxygen sensor built for specific Toyota applications, including 1993-2000 Toyota 4Runner, 1993-1995 Toyota Pickup, and 1996-1998 Toyota T100. It uses a heated, 4-wire design with a 9-inch harness and an 18 mm thread diameter for OE-style replacement fitment.

Key Features

  • Direct fit design for specific applications
  • Heated oxygen sensor construction
  • 4-wire configuration for signal and heater circuits
  • 9-inch wiring harness length
  • 18 mm thread diameter with flange mounting type
  • NTK 24595 for emission control service

Detailed Description

NTK 24595 is part of the Direct Fit Oxygen Sensor line, engineered for specific import and domestic applications with OE-style fit, form, and function. This sensor is used in Toyota 4Runner, Toyota Pickup, and Toyota T100 fitments listed for upstream and downstream positions, with notes covering California emissions and production-specific applications. The part number 24595 is supported by NTK's OE sensor manufacturing background and manufacturing controls focused on quality and reliability.

NTK is recognized as a major original equipment oxygen sensor supplier, and this product reflects that focus through application-specific coverage and tested manufacturing standards. For buyers replacing a worn oxygen sensor on a Toyota 4Runner, Toyota Pickup, or Toyota T100, NTK 24595 provides a direct fit solution matched to the listed vehicle configurations.

What It Is Used For

  • Replacing a failed oxygen sensor that can trigger check engine lights
  • Restoring air-fuel ratio feedback for engine management
  • Addressing poor fuel control caused by inaccurate exhaust readings
  • Correcting emissions-related faults on listed Toyota applications
  • Servicing upstream or downstream sensor locations shown in fitment

Installation Notes and Tips

Verify the listed year, make, model, position, and emissions notes before installation. This NTK 24595 sensor uses a flange mounting type, a heated 4-wire layout, and an 18 mm thread diameter, so confirm connector routing and harness length against the original part before replacement.

Quality Assurance

NTK tests oxygen sensors during manufacturing to help ensure quality and reliability that meet or exceed OE specifications. The brand's OE manufacturing background and application-specific design support consistent replacement performance for the listed Toyota fitments.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
2000Toyota4Runner4WDAutomatic2.7LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
1999Toyota4Runner4WDAutomatic2.7LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
1998Toyota4Runner4WDAutomatic2.7LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
1998ToyotaT100—Manual2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
1997Toyota4Runner4WDAutomatic2.7LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
1997ToyotaT100—Manual2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
1996Toyota4Runner4WDAutomatic2.7LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
1996ToyotaT100—Manual2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor
1995Toyota4Runner——2.4LL4DownstreamB1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor
1995ToyotaPickup——2.4LL4DownstreamB1S2; Calif. Emissions; Japan Production; OE Equivalent Design; Direct Fit Oxygen Sensor
1995ToyotaPickup4WD—2.4LL4DownstreamB1S2; Calif. Emissions; North American Production; Long Bed; OE Equivalent Design; Direct Fit Oxygen Sensor
1994Toyota4Runner——2.4LL4DownstreamB1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor
1994ToyotaPickup——2.4LL4DownstreamB1S2; Calif. Emissions; Japan Production; OE Equivalent Design; Direct Fit Oxygen Sensor
1994ToyotaPickup4WD—2.4LL4DownstreamB1S2; Calif. Emissions; North American Production; Long Bed; OE Equivalent Design; Direct Fit Oxygen Sensor
1993Toyota4Runner——2.4LL4DownstreamB1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor
1993ToyotaPickup——2.4LL4DownstreamB1S2; Calif. Emissions; Japan Production; OE Equivalent Design; Direct Fit Oxygen Sensor
1993ToyotaPickup4WD—2.4LL4DownstreamB1S2; Calif. Emissions; North American Production; Long Bed; OE Equivalent Design; Direct Fit Oxygen Sensor
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13104Delphi — ES20119DENSO Auto Parts — 234-4154Spectra Premium — OS511375-1804213-30158946539605ES10643OS1987OS2042SG372SG598