Engines and Components› Belts and Pulleys

DAYCO HYDRAULIC

HD TENSIONER

$128.27

SKU: D032 89490

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

HD TENSIONER

MIA's Description

The Dayco 89490 is a heavy-duty drive belt tensioner assembly designed to reduce wear, friction, vibration, and harshness. It features smooth belt routing and accurate tensioning to assist critical engine accessories like air conditioning compressors, alternators, and water pumps. This tensioner is built to last with superior resistance to under-the-hood contaminants.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDAYCO HYDRAULIC
Part NumberD032 89490

Videos

Dayco – Tensioner Replacement Tips

Dayco – Tensioner Replacement Tips
Toyota Tundra Dayco vs. Gates

Toyota Tundra Dayco vs. Gates
Gates Tensioner Pulley Reviews - Gates 38332 - Dayco vs. Gates - Honda Acura J Series V6

Gates Tensioner Pulley Reviews - Gates 38332 - Dayco vs. Gates - Honda Acura J Series V6
Dayco - Heavy Duty Belt and Tensioner Installation Detroit Diesel Engine

Dayco - Heavy Duty Belt and Tensioner Installation Detroit Diesel Engine
Dayco - Measuring Belt Wear

Dayco - Measuring Belt Wear
How To: Align Belt Pulleys (Dayco Belt Diagnostic Kit 93874)

How To: Align Belt Pulleys (Dayco Belt Diagnostic Kit 93874)

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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