1. Salvage Automotive Pulleys Offers
  2. sku: 8190114384108721
  3. DAYCO 89473

DAYCO 89473 Thomas Saf Liner Automatic Belt Tensioner Slack 036687639622

fits year: 2013–2018.

89473 Dayco For Thomas Saf-t-liner 13-18 Automatic Belt Tensioner Assembly No Slack Heavy

( Brand: Dayco ), ( Manufacturer Part Number: 89473 ), ( Part Type: Liner Belt ), ( Product Type: Engine ), ( UPC: 036687639622 ), ( Fitment Type: Direct Replacement ), ( Partslink Number: 3973819 ), ( Compatible Make S : Thomas, Western Star, Peterbilt, Freightliner, Kenworth, Volvo ), ( Compatible Model S : Saf-t-liner, 4700sb, 4700sf, 567, 337, 384, 335, 340, 365, 537 ), ( Fitnote: Location ), ( Location: Fan ), ( Product Subtype: Engine Pulleys ), ( Series: No Slack ), ( Product Details: Drive Belt Tensioner ), ( Department: Replacement )

Review DAYCO For Thomas Saf t liner Automatic Belt Tensioner Assembly No Slack Heavy fits 2013–2018

The Dayco 89473 Automatic Belt Tensioner Slack Kit is specifically designed for Thomas Built Buses with the Saf-T-Liner EFD and SD models from the year 13 to 18. This kit is an essential component for maintaining the optimal performance of your automotive belt system.

The Dayco 89473 kit includes all the necessary parts to correct belt slack issues in your automatic belt tensioner. The kit comprises two essential components: the tensioner and the idler pulley. The automatic belt tensioner plays a crucial role in keeping the belts taut and maintaining the optimal tension required for efficient engine performance. The idler pulley facilitates the smooth and proper routing of the belts around the pulleys.

This Dayco kit is manufactured using high-quality materials and advanced engineering techniques. The tensioner is engineered with a robust design to ensure reliable and long-lasting operation. It features a self-adjusting mechanism that automatically compensates for belt wear and tension loss, ensuring consistent belt tension and optimal engine performance.

The idler pulley in this kit is also engineered for durability and precision. It is manufactured using high-strength materials, ensuring it can withstand the rigors of daily use. The pulley's smooth and accurate belt routing helps to minimize friction and wear, contributing to longer belt life and reduced maintenance requirements.

Installing the Dayco 89473 Automatic Belt Tensioner Slack Kit is a straightforward process. It comes with clear and concise installation instructions to guide you through the process. The kit includes all the necessary hardware, making it a complete solution for addressing belt slack issues in your Thomas Built Bus.

In summary, the Dayco 89473 Automatic Belt Tensioner Slack Kit is an essential upgrade for Thomas Built Buses with Saf-T-Liner EFD and SD models from the year 13 to 18. It addresses belt slack issues, ensuring consistent belt tension and optimal engine performance. The kit is manufactured using high-quality materials and advanced engineering techniques, ensuring reliable and long-lasting operation. With clear installation instructions and all necessary hardware included, the Dayco 89473 kit is a complete solution for maintaining the optimal performance of your bus's belt system.

The Dayco 89473 is a belt tensioner slack assembly designed for Thomas Built Buses with Saf-T-Liner EFD and C2 body styles, model years 2013 to 2018, equipped with an automatic transmission. Here are some potential pros and cons of buying this part.

Pros:

1. OEM Quality: The Dayco 89473 is a genuine OEM (Original Equipment Manufacturer) part designed specifically for Thomas Built Buses, ensuring a perfect fit and optimal performance.

2. Improved Performance: A worn-out or faulty belt tensioner slack can lead to various issues like slippage, poor belt alignment, and excessive wear on other components. Replacing it with a new one can help maintain the engine's performance and improve overall reliability.

3. Long-lasting: Dayco is a reputable manufacturer known for producing high-quality automotive parts, including belts and tensioners. This part is expected to last for a long time, reducing the need for frequent replacements.

Cons:

1. Cost: The Dayco 89473 is a genuine OEM part, and as such, it tends to be more expensive than aftermarket alternatives. However, the cost may be justified by its superior quality and long-term performance.

2. Availability: Depending on the specific model year and body style of the Thomas Built Bus, this part may not be readily available at all auto parts stores. It's best to check with your local dealer or order through an authorized parts supplier to ensure availability.

In conclusion, the Dayco 89473 is a high-quality, OEM belt tensioner slack assembly designed specifically for Thomas Built Buses. Its superior performance, long-lasting nature, and OEM fit make it a worthwhile investment for bus owners looking to maintain their vehicles' reliability and optimal performance. Despite its potential higher cost compared to aftermarket alternatives, the Dayco 89473 can save bus owners money in the long run by reducing the need for frequent replacements.

Recommendation: If you own a Thomas Built Bus with a Saf-T-Liner EFD or C2 body style, model years 2013 to 2018, and you suspect that your belt tensioner slack is worn-out or faulty, consider investing in a new Dayco 89473 part to ensure the best possible performance and longevity for your vehicle.

Details:

Serpentine belt drives consist of a single that powers most, if not all, the engines accessories. With our drive belt parts you can schedule the repair when its convenient for. Specifications: Belt Type: Serpentine. Pulley 1 Flat: N.

No Slack Heavy Duty Automatic Belt Tensioner Assembly 89473 by Dayco. A PTFE strip wound within the spring resists abrasion and flat is coated to resist rust. And how do you know if you re getting the best price. You won't have those concerns with our replacement drive belt parts.

Direction: Clock Wise. Type: Automatic. Lubricated nylon pivot tube bushing and spring for quieter performance. Thermoplastic rubber spring slot plug that helps keep out harmful contaminants.

Rubber O ring which seals against dust and grime. This innovative design reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed and lessens noise slippage, or poor performance caused by low after begins stretch wear. Number Of Pulleys: 1.

Pulley 1 Diameter: 74mm. Do you recognize the name on box. No traffic, no standing in line, order from the comfort of your home or office. Features: Heavy duty cast aluminum spring case that resists cracking and fatigue.

part #: 89473 prices

  • $92.99-$119.52

specifications pulleyhop:

  • for years: 2013-2018
  • brand: Dayco
  • mpn: 89473
  • part type: Liner Belt
  • product type: Engine
  • upc: 036687639622
  • fitment type: Direct Replacement
  • partslink number: 3973819
  • compatible make s : Thomas, Western Star, Peterbilt, Freightliner, Kenworth, Volvo
  • compatible model s : Saf-t-liner, 4700sb, 4700sf, 567, 337, 384, 335, 340, 365, 537
  • fitnote: Location
  • location: Fan
  • product subtype: Engine Pulleys
  • series: No Slack
  • product details: Drive Belt Tensioner
  • department: Replacement

general pulleyhop:

  • Car Truck Parts Accessories > Accessory Belts > Pulleys
  • condition: New

offer pulleyhop:

  • started: April 9, 2026
  • sold: 0
  • quantity: 4
  • availability: In Stock
  • options: Ship-to-home

returns pulleyhop:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

payments pulleyhop:

  • credit card: Diners-club
  • wallet: Paypal
  • other

seller pulleyhop:

  • # reviews: 4301
  • rating: 100.0%
  • city: Rockville Centre, New York

shipping pulleyhop:

  • type: Calculated
  • class: Standard
  • carrier: FedEx
  • transit: 4-7 Days
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $29.16
for years: 2013-2018, part type: liner belt, product type: engine, fitment type: direct replacement, partslink number: 3973819, compatible make s: thomas, western star, peterbilt, freightliner, kenworth, volvo, compatible model s: saf-t-liner, 4700sb, 4700sf, 567, 337, 384, 335, 340, 365, 537, fitnote: location, location: fan, product subtype: engine pulleys, series: no slack, product details: drive belt tensioner, department: replacement,
category: auto parts > car truck parts accessories > accessory belts > pulleys, sku: 8190114384108721,

Dayco 89473 Is Similar To:

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5 offers $92.99–$119.52 USD
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  • Offer #2: $92.99 price + $0.00 shipping estimate = $92.99* total.FREE SHIPPING
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  • Offer #4: $98.31 price + $0.00 shipping estimate = $98.31* total. Location: FAN AND ALTERNATOR, FAN, FAN, ALTERNATOR AND AIR CONDITIONING, MAIN DRIVE. Duralast.FREE SHIPPING
  • Offer #5: $65.00 price + $9.69 shipping estimate = $74.69* total. New Damaged box as is.+$9.69 shipping

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