We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
DAYCO 89321 Self-Adjusting Belt Tensioner, 1 Pulley, 3 in Outside Diameter - Vehicle Self-Adjusting Belt Tensioners
DAYCOVehicle Self-Adjusting Belt Tensioners

DAYCO 89321 Self-Adjusting Belt Tensioner, 1 Pulley, 3 in Outside Diameter

The DAYCO Self-Adjusting Belt Tensioner (SKU 89321, Type 89321) is a vehicle belt tensioner with 1 pulley and a 3 in outside diameter. As an industrial solutions provider, 3G Electric interprets customer demand and…

SKU 3G-OTH-486303

Brand
DAYCO
Item
89321 Self-Adjusting Belt Tensioner, 1 Pulley, 3 in Outside Diameter
Part Number
89321
Category
Vehicle Self-Adjusting Belt Tensioners
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

DAYCO
Manufacturer Part Number
89321
Type
89321
Pulleys
1
Outside Dia
3 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

DAYCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYCO Self-Adjusting Belt Tensioner (SKU 89321, Type 89321) is a vehicle belt tensioner with 1 pulley and a 3 in outside diameter. As an industrial solutions provider, 3G Electric interprets customer demand and delivers genuine DAYCO parts across 14 industrial departments, with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is the DAYCO 89321 belt tensioner used for?

The DAYCO 89321 self-adjusting belt tensioner maintains proper tension on serpentine or accessory drive belts in vehicles. It prevents belt slippage and extends belt life. 3G Electric supplies this genuine DAYCO part across 14 industrial departments, with specialist depth in combustion, pumps and controls.

What are the specifications of the DAYCO 89321 belt tensioner?

The DAYCO 89321 belt tensioner has 1 pulley with a 3 in outside diameter. It is a self-adjusting type, part number 89321, from the DAYCO brand. 3G Electric sources and delivers this tensioner globally, handling logistics and customs for industrial procurement.

Where to buy the DAYCO 89321 belt tensioner worldwide?

3G Electric supplies the DAYCO 89321 belt tensioner worldwide. As an industrial solutions provider, we interpret customer demand, source genuine DAYCO parts, and manage full logistics and customs clearance for delivery to any global location. Contact us for availability and lead time.

How to install the DAYCO 89321 self-adjusting belt tensioner?

Install the DAYCO 89321 tensioner by aligning it with the belt routing diagram, then tightening the mounting bolt to manufacturer torque specs. Ensure the pulley rotates freely and the tensioner arm moves smoothly. 3G Electric provides genuine DAYCO parts and can advise on proper selection.

Used in

Common applications for DAYCO
Automotive service centers — DAYCO metal exhaust hoses (SKU 4GKA4, 4GKA5) for flexible exhaust extraction from vehicle tailpipes during repair.
Marine engine rooms — DAYCO 304 stainless steel exhaust hoses (SKU 4GKA8, 4GKA7) for venting diesel generator exhaust in confined spaces.
Fuel system maintenance — DAYCO SAE J30R7 fuel hoses (SKU 4GJW1) for replacement of low-pressure fuel lines in industrial engines.
High-temperature fuel injection — DAYCO FKM fuel injection hose (SKU 4GJW6) for return lines on common-rail diesel systems operating above 250°F.
Industrial ventilation — DAYCO metal exhaust kits (SKU 4GKC1) for connecting fume hoods to exhaust ducts in welding or chemical processing areas.
Biofuel handling — DAYCO SAE J1527 fuel hoses (SKU 4GJW3) for transfer of biodiesel blends in agricultural equipment refueling stations.
Not sure this is the right part? Photo-identify it

DAYCO Products

3G Electric supplies DAYCO vehicle self-adjusting belt tensioners. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from DAYCO

View all DAYCO parts
The DAYCO 89251 is a self-adjusting belt tensioner with one pulley and a 3 1/2 in outside diameter. It is used in automotive accessory drive systems to maintain proper belt tension for components such as alternators and water pumps
DAYCO
The DAYCO 89251 is a self-adjusting belt tensioner with one pulley and a 3 1/2 in outside diameter. It is used in automotive accessory drive systems to maintain proper belt tension for components such as alternators and water pumps
Self-adjusting belt tensioner for automotive accessory drive systems. Features 2 pulleys with a 3 1/8 in outside diameter. Maintains proper belt tension to reduce slip and noise
DAYCO
Self-adjusting belt tensioner for automotive accessory drive systems. Features 2 pulleys with a 3 1/8 in outside diameter. Maintains proper belt tension to reduce slip and noise
Self-adjusting belt tensioner for vehicle accessory drive systems. Features a single pulley with a 3-inch outside diameter. Automatically maintains proper belt tension to reduce slippage and noise
DAYCO
Self-adjusting belt tensioner for vehicle accessory drive systems. Features a single pulley with a 3-inch outside diameter. Automatically maintains proper belt tension to reduce slippage and noise

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first