Details

• Brand:

  

• SKU:

  11955-9DJ0A

• Other Names:

  Accessory Belt Tensioner, Serpentine Belt Tensioner, Drive Belt Tensioner, Belt Tensioner Assembly, Automatic Belt Tensioner

• Description:

  Accessory Drive Belt Tensioner Assembly (11955-9DJ0A)

  OEM Replacement Part for Nissan

  Experiencing belt squealing, rattling from the front of the engine, belt vibration, or preparing for serpentine belt service? The Genuine Nissan Accessory Drive Belt Tensioner Assembly (11955-9DJ0A) maintains the proper tension on the engine accessory drive belt, helping ensure reliable operation of critical engine-driven components such as the alternator, air conditioning compressor, water pump (where applicable), and other belt-driven accessories.

  The OEM Nissan Accessory Drive Belt Tensioner Assembly (11955-9DJ0A) is engineered to Nissan's exact factory specifications for proper belt tension, smooth pulley operation, and long service life. A properly functioning belt tensioner helps prevent belt slip, premature belt wear, excessive noise, and loss of accessory drive performance while maintaining consistent belt alignment under varying engine loads.

  Don't risk ordering the wrong part. Enter your VIN before ordering and a certified Nissan parts specialist will verify the correct tensioner assembly for your vehicle before shipment. If another Nissan part is required, we will contact you before shipping.

  Always verify compatibility by VIN before ordering. Every order is reviewed by a certified Nissan parts specialist before shipping.

  Specifications

  Part Type: Accessory Drive Belt Tensioner Assembly

  System: Engine Accessory Drive / Belt Drive System

  Function: Maintains proper serpentine belt tension and alignment

  Construction: OEM precision spring-loaded tensioner with factory-calibrated pulley assembly

  Location: Front of engine accessory drive system

  Included: One (1) Accessory Drive Belt Tensioner Assembly

  OEM Type: Genuine Nissan OEM Replacement Part

  VIN Required: Yes

  Compatible Nissan Models

  This Genuine Nissan Accessory Drive Belt Tensioner Assembly fits select Nissan vehicles including:

  2016-2025 Nissan Maxima

  2015-2024 Nissan Murano

  2013-2021 Nissan Pathfinder

  2022-2025 Nissan Pathfinder

  Fitment may vary depending on engine configuration, production date, or accessory drive system.

  Enter your VIN before ordering and our Nissan parts specialists will verify the correct tensioner assembly for your vehicle prior to shipment.

  Check compatibility here by entering your VIN:

  https://parts.chapmannissan.com

  Key Features

  • Genuine Nissan OEM Assembly Engineered to Nissan factory specifications for precise belt tension and long-lasting reliability.

  • Maintains Proper Belt Tension Helps prevent belt slip while ensuring efficient accessory operation.

  • Precision Pulley Operation Designed for smooth rotation and proper belt tracking.

  • Reduces Belt Noise Helps minimize squealing, chirping, and vibration caused by weak or worn tensioners.

  • Long-Term Durability Built to withstand continuous heat, vibration, and engine operating conditions.

  Maintenance & Service Information

  • Inspect the accessory drive belt and tensioner during routine maintenance.

  • Excessive pulley movement, weak spring tension, rough pulley bearings, or belt noise may indicate a worn tensioner.

  • A worn tensioner can shorten serpentine belt life and affect accessory performance.

  • Whenever the tensioner is replaced, inspect the serpentine belt and all accessory drive pulleys for wear.

  • If you're unsure which belt drive components your Nissan requires, provide your VIN and a certified Nissan parts specialist can verify the correct replacement parts.

  Failing to Replace a Worn Belt Tensioner Can Lead To

  Belt Squeal or Chirping

  Insufficient belt tension can allow the belt to slip.

  Accessory Drive Problems

  Loose belt tension can reduce alternator, air conditioning, or other accessory performance.

  Premature Belt Wear

  Improper tension accelerates belt cracking, glazing, and edge wear.

  Pulley Bearing Failure

  A worn pulley bearing can create noise or seize unexpectedly.

  Unexpected Belt Loss

  A failed tensioner may allow the belt to come off, disabling critical engine accessories.

  Related Components to Inspect or Replace

  Accessory Drive Belt

  Inspect for cracks, glazing, fraying, or stretching.

  Idler Pulleys

  Check for bearing noise or excessive play.

  Accessory Drive Pulleys

  Inspect for alignment issues or abnormal wear.

  Alternator Pulley

  Inspect for proper operation and bearing condition.

  Air Conditioning Compressor Pulley

  Inspect for smooth operation and excessive resistance.

  Common Symptoms & Maintenance Information

  Customers searching for the following symptoms may need an accessory drive belt tensioner inspection:

  • Belt squealing when starting

  • Chirping noise from the engine

  • Serpentine belt vibration

  • Belt flutter at idle

  • Rattling pulley noise

  • Belt coming off the pulleys

  • Uneven belt wear

  • Weak belt tension

  Regular inspection of the accessory drive system helps prevent unexpected belt failures and protects critical engine accessories.

  Order with Confidence

  Restore proper belt tension and dependable accessory drive performance with the Genuine Nissan Accessory Drive Belt Tensioner Assembly (11955-9DJ0A).

  Enter your VIN before ordering and a certified Nissan parts specialist will verify the correct tensioner assembly for your vehicle before shipment. If another Nissan part is required for your application, we will contact you before shipping.

  All OEM Nissan parts are shipped directly from Chapman Nissan in Philadelphia, PA, and every order is reviewed by a certified Nissan parts specialist before shipping.

  Most OEM Nissan parts ship within 1-3 business days from our certified Nissan warehouse.

  Need assistance before or after ordering?

  https://parts.chapmannissan.com/contact-us

  Phone: 215-492-1200

  Why Buy OEM Nissan Parts from Chapman Nissan?

  Every Genuine Nissan accessory drive belt tensioner is engineered to factory specifications for proper spring tension, pulley alignment, and long-term durability.

  Unlike some aftermarket replacements, OEM Nissan tensioners are designed specifically for your engine's accessory drive geometry, helping maintain proper belt tracking, reduce noise, and extend belt life.

  Our team reviews every order, and VIN verification is available to help ensure you receive the correct Genuine Nissan part for your vehicle.

  • Fast, secure shipping

  • VIN-verified accuracy

  • Trusted by Nissan owners and professional technicians nationwide

  FAQ

  What does an accessory drive belt tensioner do?

  The tensioner automatically maintains proper tension on the serpentine belt, allowing engine accessories to operate correctly.

  What are the symptoms of a bad belt tensioner?

  Common symptoms include belt squealing, chirping noises, belt vibration, pulley rattling, uneven belt wear, or the belt coming off the pulleys.

  Should the serpentine belt be replaced with the tensioner?

  It's recommended to inspect the belt whenever the tensioner is replaced. If the belt shows signs of wear, replacing both components together is often beneficial.

  Can a bad tensioner cause charging problems?

  Yes. If the belt slips because of a weak or failing tensioner, the alternator may not operate efficiently, which can affect battery charging.

  Will Chapman Nissan verify the correct tensioner for my vehicle?

  Yes. If you provide your VIN when ordering, a certified Nissan parts specialist will verify the correct part before shipment and contact you if another Nissan part is required.

  Is this a genuine Nissan part?

  Yes. 11955-9DJ0A is a Genuine Nissan OEM Accessory Drive Belt Tensioner Assembly engineered specifically for compatible Nissan vehicles.

• Condition: New
• Replaces:

  119553ja1a, 119553ja1b

• Warranty:

  Warranty Coverage

  This Genuine Nissan part is backed by Nissan's 12-month/12,000-mile limited warranty when purchased from an authorized Nissan dealer, subject to Nissan's warranty terms and conditions. If you provide your VIN before ordering, we will verify the correct part for your vehicle to help ensure proper fitment.

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