---
product_id: 11870898
title: "Dayco 89378 Belt Tensioner"
brand: "dayco"
price: "4013193₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/11870898-dayco-89378-belt-tensioner
store_origin: VN
region: Vietnam
---

# Compact 6.6x4.8x4.5 inch design Lightweight at just 2.1 lbs Precision-machined for durability Dayco 89378 Belt Tensioner

**Brand:** dayco
**Price:** 4013193₫
**Availability:** ✅ In Stock

## Summary

> ⚙️ Keep your engine running smooth with precision you can trust!

## Quick Answers

- **What is this?** Dayco 89378 Belt Tensioner by dayco
- **How much does it cost?** 4013193₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/11870898-dayco-89378-belt-tensioner)

## Best For

- dayco enthusiasts

## Why This Product

- Trusted dayco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart Design:** Compact dimensions optimize engine bay space without compromising function.
- • **Lightweight Efficiency:** At only 2.1 pounds, it reduces unnecessary weight, contributing to overall vehicle efficiency.
- • **Engineered for Longevity:** Precision-machined exterior guarantees robust performance and extended lifespan.
- • **Trusted Brand Reliability:** From Dayco, a leader in automotive parts, ensuring quality you can count on.
- • **Tailored Fit for Your Ride:** Ensures perfect compatibility with your vehicle's year, make, and model for seamless installation.

## Overview

The Dayco 89378 Belt Tensioner is a precision-machined, lightweight automotive part designed to maintain optimal belt tension. With a compact footprint and vehicle-specific fitment, it ensures reliable performance and longevity, making it an essential upgrade for maintaining your vehicle’s engine efficiency.

## Description

Dayco 89378 Belt Tensioner

## Features

- Many products require vehicle-specific fitment
- View the Compatibility table to ensure the part fits your year, make, model and submodel
- Please reference the submodel information located on the far left within the Compatibility table under "Notes"
- Please note: Due to our high sales volume, it may take up to 2-business days for us to reply to all questions and/or requests.
- We do not offer shipping to APO/FPO

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Dayco |
| Brand | Dayco |
| Model | Belt Tensioner |
| Item Weight | 2.1 pounds |
| Product Dimensions | 6.6 x 4.8 x 4.5 inches |
| Item model number | 89378 |
| Exterior | Machined |
| Manufacturer Part Number | 89378 |

## Product Details

- **Brand:** Dayco
- **Belt Style:** Serpentine Belt
- **Compatible Devices:** Car
- **Item Weight:** 2.1 Pounds
- **Color:** Black

## Images

![Dayco 89378 Belt Tensioner - Image 1](https://m.media-amazon.com/images/I/815RQ0BDuyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install replacement!
*by M***A on February 12, 2025*

Used on a 2016 Lexus GX460 with 4.6L 1UR-FE engine; better than OEM quality.

### ⭐⭐⭐⭐⭐ Good quality
*by L***D on February 26, 2025*

Good fitment

### ⭐⭐⭐⭐⭐ Worked great for replacement part on 2009 Toyota Land Cruiser
*by V***G on March 11, 2024*

Was experiencing some squeaking/chirping coming from front part of engine on 2009 Toyota Land Cruiser. Typically that is the sign of serpentine belt, idler pulley and/or tensioner bearings going out, so I ordered this part, along with the belt and idler to replace my (possibly original) parts. I dropped of parts and car with my mechanic one morning and picked it up later that afternoon. Immediately noticed the noise was gone. Since I didn't do the work myself, I cannot say which part was causing the noise, but I can say that this tensioner, along with the other parts, have been running smooth and quiet since they were put on around 6-8 weeks ago. This SUV has the 5.7L V8, so my guess is that this fits a number of Toyotas and Lexus's with that engine, and whatever else the company says it will fit. I always appreciate it when the person leaving the review mentions what specific make/model car the parts were used on, so I wanted to include mine. Helps when you know for sure, as sometimes despite the product description, it is possible the fit is incorrect. Good part so far! Will update if anything changes, but I don't expect it to.

## Frequently Bought Together

- Dayco 89378 Belt Tensioner
- Dayco 89502 Idler/Tensioner Pulley
- Dayco Drive Rite 5080950DR Serpentine Belt

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**Shop now:** [https://www.desertcart.vn/products/11870898-dayco-89378-belt-tensioner](https://www.desertcart.vn/products/11870898-dayco-89378-belt-tensioner)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-07*