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USD 99.93
Part #: WPI274-1025

Walker 274-1025 Differential Pressure (DPS) Sensor

Vehicle Fitment:
2014 GM 6.6L Duramax LGH/LML | See full application list below
Part #: WPI274-1025
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Get a Walker 274-1025 Differential Pressure (DPS) Sensor from XDP and replace the non-functioning DPS sensor in your 2014 GM 6.6L Duramax LGH/LML. The Differential Pressure Sensor monitors the performance of the Diesel Particulate Filter (DPF). The sensor operates by measuring the exhaust gas pressure upstream and downstream of the vehicle's DPF. By monitoring the pressure difference between these two points, the saturation level of the Particle Filter can be determined, and the vehicle's ECU can interpret the data to determine when to inject Diesel Exhaust Fluid (DEF) for regeneration.

Like many engine or exhaust components, the DPS has a limited life and will require periodic replacement. Common causes of Differential Pressure Sensor failure can occur from contamination, clogging, damaged electronics from intense engine heat, or vibration damage from prolonged exposure in the engine compartment. Symptoms of failing Differential Pressure Sensor may include excessive DPF regeneration cycles, engine will not start or starts poorly, detonation or misfire, excessive fuel consumption, lack of engine power, and a check engine light.

  • Designed To Hold Up Under Any Condition
  • Manufactured With The Highest Quality Materials
  • 100% Engineered & Tested To OE Spec In Fit, Form & Function

Vehicle Fitment

2014 Chevrolet Express 2500 6.6
2014 Chevrolet Express 3500 6.6
2014 Chevrolet Express 4500 6.6
2014 Chevrolet Silverado 2500 HD 6.6
2014 Chevrolet Silverado 3500 HD 6.6
2014 GMC Sierra 2500 HD 6.6
2014 GMC Sierra 3500 HD 6.6


  • MPN 274-1025
  • SKU WPI274-1025
  • GTIN 724620113734
  • ID 129572
  • Manufacturer Name Walker Products
  • Shipping Weight 1.00 lb.
  • Shipping Length 6 in.
  • Shipping Width 3 in.
  • Shipping Height 3 in.
  • Fuel Type Diesel
  • E-Code 1
  • Warranty Info 90 Day Limited
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Cross Reference # 12598445, 12630257, 213-3854
  • Internal L0R0


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