SAE J2088 Intake Auto MAP Sensor Cummins 4076493 5WK9684 A2C84260100 2897331

The 5WK9684 MAP sensor is compatible with and can be substituted by the following OEM and equivalent part numbers:

Note: Always verify compatibility with your specific vehicle application before purchase. Cross-reference numbers are provided for reference purposes only and do not guarantee fitment across all listed applications.

The 5WK9684 MAP sensor is extensively used across a wide range of heavy-duty commercial vehicles, trucks, and engine platforms. Below is a comprehensive list of confirmed compatible applications:

The 5WK9684 sensor fits a comprehensive range of Cummins engine models:

Important: This sensor is primarily designed for heavy-duty commercial vehicle and truck applications. Always verify fitment using your vehicle's VIN and exact engine code before purchasing.

A failing or faulty 5WK9684 MAP sensor can manifest through a variety of drivability and performance issues. Early recognition of these symptoms can prevent more serious engine damage and costly repairs.

The most common indication of a MAP sensor issue. The ECU detects abnormal voltage signals from the sensor and triggers the warning light. Common diagnostic trouble codes (DTCs) associated with MAP sensor failure include:

• P0106 – MAP/Barometric Pressure Circuit Range/Performance

• P0107 – MAP Sensor Circuit Low Input

• P0108 – MAP Sensor Circuit High Input

• P0236 – Turbocharger Boost Sensor A Circuit Range/Performance

• P0237 – Turbocharger Boost Sensor A Circuit Low

• P0238 – Turbocharger Boost Sensor A Circuit High

Inaccurate pressure readings lead to improper fuel delivery, resulting in sluggish acceleration and a general lack of power.

When the MAP sensor provides incorrect load data, the ECU may compensate by delivering an excessively rich or lean fuel mixture, significantly reducing fuel efficiency.

A faulty MAP sensor disrupts the air-fuel mixture, causing the engine to idle roughly or surge unexpectedly.

The engine may become difficult to start, or may stall after starting, due to incorrect fuel mixture calculation.

A rich fuel mixture caused by faulty MAP sensor readings often results in dark smoke emitting from the tailpipe, particularly under acceleration.

Inconsistent MAP signals during throttle changes can cause hesitation or surging.

The engine may not perform at its optimal level, with noticeable reduction in responsiveness and power output.

Inaccurate air-fuel ratio control leads to increased emissions, potentially causing the vehicle to fail emissions inspections.

Common causes of MAP sensor failure include:

• Intermittent faults – often caused by poor contact in the sensor's or PCM's connector

• Open circuit in wiring between the MAP sensor and ECU/PCM

• Short circuit in wiring

• Faulty sensor – internal component degradation over time

• Poor connections – loose terminals, corrosion, contamination, or damage

• Contamination – oil or debris buildup on the sensing element

• Heat exposure – prolonged exposure to high under-hood temperatures

• Vibration damage – constant engine vibration can damage internal connections

When purchasing a replacement 5WK9684 MAP sensor, consider the following factors to ensure you select the right component for your vehicle.

Always confirm your vehicle's original equipment (OE) part number before purchasing. While 5WK9684 is the primary reference, this sensor is also commonly referenced under 2897331, 4076493, and A2C86289900.

The 5WK9684 is an intake air pressure sensor designed specifically for heavy-duty commercial vehicle and truck applications. It is engineered for continuous operation in commercial vehicles, providing real-time data to ensure reliable performance under heavy-duty conditions.

This sensor is compatible with a wide range of Cummins engine models, including the B3.3, B4.5, B6.7, ISB, ISL, ISF, M11, N14, QSB, QSF, QSK, and QSX series. It is also compatible with Volvo 2.0 D-4D and 3.3L engines.

Material quality matters. This sensor features:

• Durable black plastic construction for lightweight, corrosion-resistant performance

• Airtight green-sealed connector for protection against moisture and contaminants

• Multi-pin modular interface for easy installation and removal

• ISO 9001 and SAE J2088 certification for automotive industry quality and safety standards

Choose a supplier that offers:

• Warranty against manufacturing defects (minimum 12 months recommended)

• Quality assurance through professional testing and inspection

• Reputable brand with positive customer reviews

Consider replacing your MAP sensor if:

• Your vehicle is throwing diagnostic trouble codes related to MAP/boost sensor performance (P0106, P0107, P0108, P0236, P0237, P0238)

• You experience loss of power, poor fuel economy, or rough idling

• You encounter hard starting, stalling, or black smoke from exhaust

• Your vehicle has significant mileage – sensors typically degrade over time

• The sensor shows signs of physical damage, corrosion, or contamination

Professional installation is recommended for optimal results. Key installation considerations include:

• Proper mounting – Flange mount installation

• Electrical connection – Verify the multi-pin connector is clean and free of corrosion

• Check for poor connections – Thoroughly inspect connectors for looseness, poor contact, corrosion, contamination, or damage

• Clear diagnostic codes – After installation, clear any stored codes; if the fault was intermittent, the PCM memory may need to be cleared

• Seal integrity – Ensure the green ring gasket is properly seated for an airtight seal

Before replacing the sensor, inspect the wiring harness:

• Check for open circuits in wiring between the MAP sensor and ECU/PCM

• Check for short circuits

• Inspect connectors for corrosion, contamination, deterioration, or damage

This sensor is designed for heavy-duty applications and is built to withstand:

• Extreme temperatures from -40°C to +125°C

• High vibration environments typical of commercial vehicles

• Harsh environmental conditions including moisture, dirt, and chemical exposure

While pricing varies between suppliers, consider the following:

• Quality options with proper certification provide the best balance of quality and value

• Extremely low-priced units may use inferior materials or lack proper quality control

• Premium options (genuine or high-quality equivalents) typically offer better durability and more consistent performance, especially important for heavy-duty applications operating in harsh environments

Choose suppliers who offer:

• Clear warranty terms (minimum 12 months recommended)

• Hassle-free return policies

• Compatibility guarantees (with VIN verification)

Before installing the new sensor:

• Compare the new unit visually with the old one – dimensions and connector should match

• Check that the part number on the new sensor matches your requirements

• Inspect the connector pins for straightness and integrity

• Confirm the sensor is designed for your specific engine application

• Verify the sensor is rated for the appropriate pressure range for your vehicle