HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 89094 Accessory Drive Belt Tensioner Pulley
Part #: 89094

Dayco 89094 Accessory Drive Belt Tensioner Pulley

⚙️ 39 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$46.72Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Nissan, and Ram, 2500, 3500, Ram 2500, Ram 3500, and TITAN XD
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Accessory Drive Belt Tensioner Pulley for Dodge, Nissan, and Ram

The Dayco 89094 accessory drive belt tensioner pulley is engineered to maintain optimal tension on serpentine belts in heavy-duty vehicles. Designed for compatibility with Dodge Ram 2500, Ram 3500, and Nissan TITAN XD models, this polymer pulley supports efficient belt operation and longevity.

  • Constructed from durable polymer material for corrosion resistance and lightweight performance
  • Compatible with serpentine belt systems, supporting up to 8-rib belt width
  • Features a single bearing with a 17mm inner diameter and 12mm bearing width for smooth rotation
  • Flat pulley design suitable for specific accessory drive configurations
  • Precision dimensions: 74.3mm outer diameter and 39.25mm pulley width

Detailed Product Description

The Dayco 89094 tensioner pulley is a critical component in the accessory drive belt system, designed to maintain proper belt tension and alignment. Its polymer construction offers resistance to wear and environmental factors, reducing the risk of premature failure. The pulley accommodates serpentine belts with up to 8 ribs, making it suitable for modern accessory drive setups found in Dodge Ram 2500, Ram 3500, and Nissan TITAN XD vehicles. The single bearing design, with a 17mm inner diameter and 12mm width, ensures smooth and reliable rotation under various operating conditions. The flat pulley profile supports specific belt routing requirements, contributing to consistent belt tracking and reduced noise.

Common Applications and Problem Resolution

  • Prevents belt slippage and misalignment in accessory drive systems
  • Reduces noise caused by worn or damaged pulleys
  • Addresses premature bearing wear in original equipment tensioner pulleys
  • Supports proper tension to extend serpentine belt life
  • Helps maintain efficient operation of alternators, power steering pumps, and other belt-driven accessories

Installation Notes and Tips

When installing the Dayco 89094 tensioner pulley, ensure the serpentine belt is properly routed according to the vehicle’s service manual. Verify that the pulley aligns correctly with other accessory drive components to prevent belt wear. Inspect the belt for any signs of damage or wear and replace if necessary. Use appropriate tools to avoid damaging the polymer surface or bearing during installation.

Quality Assurance and Warranty

Dayco manufactures the 89094 tensioner pulley to meet or exceed OEM specifications for durability and performance. The polymer material and bearing assembly undergo rigorous quality control to ensure consistent operation. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

BrandDayco
Part Number89094
MaterialPolymer
106874.3
25639.25
Belt TypeSerpentine
Bearing Inner Diameter 117
Bearing Width12
FlatY
Max Belt Width08 rib
Number of Bearings1

This part fits 39 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2018NissanTITAN XD5.0LV8N/A
2018Ram25006.7LL6N/A
2018Ram35006.7LL6N/A
2017NissanTITAN XD5.0LV8N/A
2017Ram25006.7LL6N/A
2017Ram35006.7LL6N/A
2016NissanTITAN XD5.0LV8N/A
2016Ram25006.7LL6N/A
2016Ram35006.7LL6N/A
2015Ram25006.7LL6N/A
2015Ram35006.7LL6N/A
2014Ram25006.7LL6N/A
2014Ram35006.7LL6N/A
2013Ram25006.7LL6N/A
2013Ram35006.7LL6N/A
2012Ram25006.7LL6N/A
2012Ram35006.7LL6N/A
2011Ram25006.7LL6N/A
2011Ram35006.7LL6N/A
2010DodgeRam 25006.7LL6N/A
2010DodgeRam 3500N/A
2009DodgeRam 25005.9LL6N/A
2009DodgeRam 25006.7LL6N/A
2009DodgeRam 35006.7LL6N/A
2008DodgeRam 25005.9LL6N/A
2008DodgeRam 25006.7LL6N/A
2008DodgeRam 35006.7LL6N/A
2007DodgeRam 25005.9LL6N/A
2007DodgeRam 25006.7LL6N/A
2007DodgeRam 35005.9LL6N/A
2007DodgeRam 35006.7LL6N/A
2006DodgeRam 25005.9LL6N/A
2006DodgeRam 35005.9LL6N/A
2005DodgeRam 25005.9LL6N/A
2005DodgeRam 35005.9LL6N/A
2004DodgeRam 25005.9LL6N/A
2004DodgeRam 35005.9LL6N/A
2003DodgeRam 25005.9LL6N/A
2003DodgeRam 35005.9LL6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3947574

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.