We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
DAYCO 89251 Self-Adjusting Belt Tensioner - Vehicle Self-Adjusting Belt Tensioners
DAYCOVehicle Self-Adjusting Belt Tensioners

DAYCO 89251 Self-Adjusting Belt Tensioner

The DAYCO Self-Adjusting Belt Tensioner (model 89251) is a vehicle belt tensioner with one pulley and a 3 1/2 in outside diameter. As an OEM-specified part, it is designed to maintain proper belt tension in…

SKU 3G-OTH-486304

Brand
DAYCO
Item
89251 Self-Adjusting Belt Tensioner
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

DAYCO
Manufacturer Part Number
89251
Type
89251
Pulleys
1
Outside Dia
3 1/2 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 (model 89251) is a vehicle belt tensioner with one pulley and a 3 1/2 in outside diameter. As an OEM-specified part, it is designed to maintain proper belt tension in automotive accessory drive systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the DAYCO 89251 belt tensioner used for?

The DAYCO 89251 self-adjusting belt tensioner maintains proper tension in automotive accessory drive systems. It is an OEM-specified replacement part with one pulley and a 3 1/2 in outside diameter, ensuring reliable operation of belts driving alternators, water pumps, and other engine accessories.

What are the specifications of the DAYCO 89251 belt tensioner?

The DAYCO 89251 is a self-adjusting belt tensioner with one pulley and a 3 1/2 in outside diameter. It is designed as an OEM-specified replacement part for vehicle accessory drive systems. The manufacturer part number is 89251, and it is produced by DAYCO.

Where to buy the DAYCO 89251 belt tensioner worldwide?

3G Electric supplies the DAYCO 89251 self-adjusting belt tensioner to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact our team to source this OEM-specified part for your vehicle's accessory drive system.

How to install the DAYCO 89251 belt tensioner?

Installation of the DAYCO 89251 self-adjusting belt tensioner follows standard automotive practice: relieve belt tension, remove the old tensioner, align the new unit with mounting holes, torque to manufacturer specifications, and route the belt over the pulley. Always consult the vehicle service manual for exact procedures.

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.

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 →

Compatible alternatives & equivalents

Cross-referenced by specification & description
Self-adjusting belt tensioner with one pulley, outside diameter 2 3/4 in. Maintains proper tension on engine accessory drive belts to prevent slippage and extend belt life. Suitable for vehicle engine accessory drive systems
DAYCO
Self-adjusting belt tensioner with one pulley, outside diameter 2 3/4 in. Maintains proper tension on engine accessory drive belts to prevent slippage and extend belt life. Suitable for vehicle engine accessory drive systems
This DAYCO self-adjusting belt tensioner features a single pulley with an outside diameter of 3 1/4 inches. It automatically maintains proper tension in automotive serpentine or accessory belt drive systems, compensating for belt stretch and wear. Suitable for use with alternators, water pumps, and other engine-driven components
DAYCO
This DAYCO self-adjusting belt tensioner features a single pulley with an outside diameter of 3 1/4 inches. It automatically maintains proper tension in automotive serpentine or accessory belt drive systems, compensating for belt stretch and wear. Suitable for use with alternators, water pumps, and other engine-driven components
Self-adjusting belt tensioner with 1 pulley, 3 in outside diameter. Automatically maintains proper tension on engine accessory drive belts to compensate for belt stretch and wear
DAYCO
Self-adjusting belt tensioner with 1 pulley, 3 in outside diameter. Automatically maintains proper tension on engine accessory drive belts to compensate for belt stretch and wear
The DAYCO 89352 is a self-adjusting belt tensioner designed to maintain proper tension on engine accessory drive belts. It features 0 pulleys and is used in automotive applications to prevent belt slippage and reduce noise. This OEM component is suitable for vehicle maintenance and repair
DAYCO
The DAYCO 89352 is a self-adjusting belt tensioner designed to maintain proper tension on engine accessory drive belts. It features 0 pulleys and is used in automotive applications to prevent belt slippage and reduce noise. This OEM component is suitable for vehicle maintenance and repair
The DAYCO 89204 self-adjusting belt tensioner automatically maintains proper tension on serpentine or accessory drive belts in automotive engines. It features one pulley with a 3 1/2 in outside diameter. This component is used in vehicle maintenance and repair to prevent belt slippage and reduce noise
DAYCO
The DAYCO 89204 self-adjusting belt tensioner automatically maintains proper tension on serpentine or accessory drive belts in automotive engines. It features one pulley with a 3 1/2 in outside diameter. This component is used in vehicle maintenance and repair to prevent belt slippage and reduce noise
The DAYCO 89444 is a heavy-duty self-adjusting belt tensioner with a single pulley. It automatically maintains proper belt tension to reduce slippage and wear in engine accessory drive systems. Suitable for automotive and industrial engine applications
DAYCO
The DAYCO 89444 is a heavy-duty self-adjusting belt tensioner with a single pulley. It automatically maintains proper belt tension to reduce slippage and wear in engine accessory drive systems. Suitable for automotive and industrial engine applications

More from DAYCO

View all DAYCO parts →
The DAYCO 89474 is a heavy-duty self-adjusting belt tensioner with one pulley. It maintains proper tension on engine accessory drive belts, preventing slippage and extending belt life. Suitable for use in heavy-duty vehicle engine accessory drive systems
DAYCO
The DAYCO 89474 is a heavy-duty self-adjusting belt tensioner with one pulley. It maintains proper tension on engine accessory drive belts, preventing slippage and extending belt life. Suitable for use in heavy-duty vehicle engine accessory drive systems
The DAYCO 89419 is a heavy-duty self-adjusting belt tensioner with a single pulley. It is designed to maintain proper tension in vehicle accessory belt systems, reducing belt wear and ensuring reliable drive belt performance in demanding applications
DAYCO
The DAYCO 89419 is a heavy-duty self-adjusting belt tensioner with a single pulley. It is designed to maintain proper tension in vehicle accessory belt systems, reducing belt wear and ensuring reliable drive belt performance in demanding applications
Self-adjusting belt tensioner with one pulley, 3 in outside diameter. Maintains proper tension in automotive serpentine or accessory belt drive systems, automatically compensating for belt stretch and wear
DAYCO
Self-adjusting belt tensioner with one pulley, 3 in outside diameter. Maintains proper tension in automotive serpentine or accessory belt drive systems, automatically compensating for belt stretch and wear
The DAYCO 89228 self-adjusting belt tensioner maintains proper tension in automotive accessory drive systems. It features a single pulley with a 3-1/2 in outside diameter. This tensioner is used to prevent belt slippage and wear on engine-driven components such as alternators and water pumps
DAYCO
The DAYCO 89228 self-adjusting belt tensioner maintains proper tension in automotive accessory drive systems. It features a single pulley with a 3-1/2 in outside diameter. This tensioner is used to prevent belt slippage and wear on engine-driven components such as alternators and water pumps
Self-adjusting belt tensioner with 1 pulley, 2 3/4 in outside diameter. Automatically maintains proper tension on engine accessory drive belts to prevent slippage and reduce wear. Suitable for automotive and light-truck applications
DAYCO
Self-adjusting belt tensioner with 1 pulley, 2 3/4 in outside diameter. Automatically maintains proper tension on engine accessory drive belts to prevent slippage and reduce wear. Suitable for automotive and light-truck applications
Self-adjusting belt tensioner for vehicle accessory drive systems. Maintains proper belt tension automatically to reduce slippage and wear. Single pulley design with 2 3/4 in outside diameter
DAYCO
Self-adjusting belt tensioner for vehicle accessory drive systems. Maintains proper belt tension automatically to reduce slippage and wear. Single pulley design with 2 3/4 in outside diameter
Self-adjusting belt tensioner with one pulley, 2 3/4 in outside diameter. Maintains proper tension on serpentine or accessory drive belts, automatically compensating for belt stretch and wear
DAYCO
Self-adjusting belt tensioner with one pulley, 2 3/4 in outside diameter. Maintains proper tension on serpentine or accessory drive belts, automatically compensating for belt stretch and wear
Self-adjusting belt tensioner with one pulley, 2 1/2 in outside diameter. Automatically maintains proper tension on engine accessory belts to prevent slippage and wear. Suitable for automotive and light-truck accessory belt systems
DAYCO
Self-adjusting belt tensioner with one pulley, 2 1/2 in outside diameter. Automatically maintains proper tension on engine accessory belts to prevent slippage and wear. Suitable for automotive and light-truck accessory belt systems