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Dayco 89243 Automatic Accessory Belt Tensioner

(Buick Regal 1990-91, LeSabre 1988-91, Park Avenue 1991, Riviera 1988-91, Electra 1988-90, Reatta 1988-91; Pontiac Bonneville 1988-91 + 2 more models)

Part of: Dayco Automatic Accessory Belt Tensioner

Other options in this family: Dayco 89281 Dayco 89228 Dayco 89336 Dayco 89328 Dayco 89308

Manufacturer

Picture for manufacturer Dayco

Part Number

89243
7 reviews
Sale Price

$134.95

In Stock (5)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Dayco 89243 Automatic Belt Tensioner is engineered to maintain optimal belt tension throughout the life of your accessory drive system. This premium OE replacement tensioner ensures reliable performance for your vehicle's alternator, power steering, air conditioning, and other belt-driven accessories.

Key Features:

  • Patented Flat Spring Design: Reduces the risk of accessory bearing failure by maintaining consistent belt tension
  • Coated Flat Spring: Rust-resistant coating protects against corrosion and extends service life
  • Heavy-Duty Cast Aluminum Construction: Both the spring case and arm are made from durable cast aluminum for superior strength and crack resistance
  • Prevents Belt Issues: Eliminates belt squeal, slippage, and poor accessory performance caused by inadequate tension
  • Reduced Distortion: Heavy-duty aluminum arm design minimizes flex and distortion under load

This tensioner is sold individually and serves as a direct OE replacement part. Dayco's proven design ensures your serpentine belt system operates smoothly and quietly while protecting expensive accessory components from premature wear.

Products specifications

Fits

Buick Regal 1990-91, LeSabre 1988-91, Park Avenue 1991, Riviera 1988-91, Electra 1988-90, Reatta 1988-91; Pontiac Bonneville 1988-91; Oldsmobile Delta 88 1988-91, 98 1988-91, Toronado 1988-91

Quantity

Sold individually.

Good price

Purchased my mishimoto heat tape. Cheapest price around and the shipment was delivered in a very reasonable time. Couldnt be happier

Very fast shipping, always great prices.

shipped fast, cant wait to put it on the jeep, would buy from here in the future.

I'll admit to being skeptical at first, but the price was worth the risk. Turned out to be one of the best online transactions I've experienced. Received item 3 days after purchaseing and the best price I found. And I looked hard! A+

Excellent shop with good prices, rapid delivery, good support, thank you!!!<br>This shop I would recommend for the purchases of auto of repair parts.<br><br>YULIYA.

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

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