Details

• Brand:

  

• SKU:

  17251-3LM0B

• Other Names:

  Cap, Cap Assembly-Filler

• Description:

  Check Engine Light from a Loose or Faulty Cap? Restore EVAP system integrity with the OEM Nissan Fuel Cap (Part #17251-3LM0B), designed to keep your NV200 fuel system sealed and emissions compliant.

  Fuel Cap (17251-3LM0B) – OEM Replacement Part for Nissan

  This genuine Nissan fuel cap provides the proper seal for your NV200’s fuel tank, preventing vapor leaks and maintaining correct pressure in the EVAP system. A worn or missing cap is a common cause of check engine light warnings and failed emissions readiness.

  Specifications

  • Part Type: Fuel Cap

  • Function: Seals the fuel tank to prevent vapor leaks and maintain EVAP system performance

  • Construction: OEM-grade thermoplastic housing with vapor-rated seal and pressure relief design

  • Position: Fuel filler neck opening

  • Includes: Complete cap (with tether, if originally equipped)

  Compatible Nissan Models

  • 2012–2025 Nissan NV200 (M20XUS)

  • 2013–2025 Nissan NV200 Taxi (M20XYUS)

  Fitment may vary based on trim and model year. Confirm compatibility by entering your VIN at checkout.

  Key Features

  • OEM Nissan part ensures factory sealing performance

  • Prevents common EVAP codes (P0440, P0455, P0456) caused by leaks

  • Durable construction resists wear from fuel vapors and temperature changes

  • Protects fuel system and emissions components from unnecessary strain

  • Direct-fit design for secure locking and easy tightening

  Failing to Replace a Worn Fuel Cap Can Lead To:

  • Check Engine Light (CEL): Triggered by small EVAP leaks detected by the ECM

  • Failed Emissions Test: System cannot pass readiness monitors if vapors escape

  • Fuel Vapor Leaks: Leads to hydrocarbon emissions and fuel odor around vehicle

  • Reduced Fuel Economy: Improper tank pressure can affect efficiency

  Related Components to Inspect or Replace

  • EVAP Canister Purge Valve – Manages vapor flow to the intake

  • Fuel Tank Pressure Sensor – Ensures proper sealing under EVAP testing

  • EVAP Canister – May become damaged or saturated if cap leaks persist

  • EVAP Hoses – Inspect for cracks, pinholes, or disconnections

  • Charcoal Canister Vent Valve – Works in tandem with the cap to maintain system integrity

  Order with Confidence

  Order the OEM Fuel Cap (17251-3LM0B) today to restore proper fuel system sealing and resolve EVAP-related trouble codes. Engineered by Nissan for a precise fit and long-term reliability.

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  Why Buy OEM Nissan Parts from Chapman Nissan?

  Every OEM part listed on our site is genuine from Nissan, built to exact factory specs for fit, function, and safety. Unlike aftermarket parts, our components are tested to work seamlessly with your vehicle’s onboard systems — including sensors, ECM logic, and emission controls.

  • Fast, secure shipping from a certified Nissan dealer

  • VIN check available to ensure compatibility

  • Trusted by Nissan owners and professional technicians

  Note: To avoid issues with return eligibility or fitment, please verify your VIN before ordering. This part is non-returnable if installed.

  Fuel System FAQ

  Q: Will a faulty fuel cap cause my NV200 to fail inspection?
  A: Yes. If the cap doesn’t seal properly, the EVAP system may fail readiness checks, causing inspection failure.

  Q: My NV200 shows code P0456. Could it be the fuel cap?
  A: Yes, small leak codes like P0456 are often triggered by loose, damaged, or missing caps.

  Q: Can I use an aftermarket cap instead?
  A: Aftermarket caps may not meet Nissan’s exact pressure specifications, leading to recurring CEL issues. OEM is recommended.

  Q: How often should I replace my fuel cap?
  A: Inspect regularly. Replace if the seal is cracked, if the cap no longer clicks securely, or if CEL codes persist after tightening.

• Condition: New
• Replaces:

  172513lm0a

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