Company23 Subaru EJ DOHC Timing Belt Kit

Maintain your Subaru EJ engine with the Company23 DOHC Timing Belt Kit, featuring genuine Japanese OE-manufacturer components sourced directly from trusted suppliers.

Company23 has carefully selected each component to provide OEM-quality reliability, proper fitment and long-lasting performance. Each kit includes a Company23-branded Mitsuboshi timing belt, genuine OE-manufacturer tensioner and high-quality Japanese idler pulleys.

Key Features

• Genuine Japanese OE-manufacturer timing components.

• Components sourced directly from established OE suppliers.

• Laser-marked components for Company23 quality identification.

• Company23-branded Mitsuboshi timing belt.

• NTN timing belt tensioner.

• Idler bearings manufactured by NSK, Koyo and NTN.

• Model-specific kits designed for proper Subaru EJ engine fitment.

• Custom protective packaging.

Please Note: A water pump is not included with this timing belt kit.

Vehicle Fitment

Company23 Timing Kit 575

• 2002–2014 Subaru WRX

• 2004–2011 Subaru STI

• 2005–2009 Subaru Outback XT

• 2004–2013 Subaru Forester XT

• 2004–2006 Subaru Baja XT

• 2005–2012 Subaru Legacy 2.5GT

Company23 Timing Kit 576

• 2012–2021 Subaru STI

• 2012 Subaru Legacy 2.5GT

Important: 2002–2003 WRX models require a longer small idler bolt when upgrading to the later double-bearing idler design. Select the appropriate bolt option when ordering.

Genuine Japanese OE-Manufacturer Components

Not all timing belt kits are created equal.

Company23 sources its timing components directly from established Japanese manufacturers that supply original equipment to Subaru. Rather than relying on generic aftermarket alternatives, Company23 carefully selects components designed to deliver the quality and reliability expected from OE parts.

Each kit combines genuine OE-manufacturer components with Company23's attention to detail.

Genuine Components. No Counterfeits.

Company23 works directly with trusted component manufacturers to maintain authenticity and consistent quality.

By sourcing directly from manufacturers, Company23 reduces the risk of counterfeit components entering its timing kits, providing additional confidence when maintaining your Subaru engine.

Component Manufacturers

Company23 believes in complete transparency about the components used in its timing kits.

• Timing Belt: Mitsuboshi, featuring Company23 branding.

• Timing Belt Tensioner: NTN.

• Idler Bearings: NSK, Koyo and NTN.

These manufacturers are established suppliers of Japanese automotive components and are recognized for their OE manufacturing expertise.

Engineered With Attention to Detail

Company23 develops its timing kits with Subaru enthusiasts in mind. From component selection to packaging, every detail is considered to deliver a reliable timing belt replacement solution.

Upgraded Small Idler Compatibility

The 2002–2003 Subaru WRX originally used a different small idler configuration.

Later 2004+ models received an updated double-bearing small idler designed for improved longevity.

Company23 kits allow earlier WRX owners to upgrade to this later design using the appropriate longer mounting bolt, available as an optional selection.

Custom Protective Packaging

Company23 timing kits arrive in custom packaging designed specifically for their components.

Packaging dimensions and belt storage requirements have been developed with recommendations from the belt manufacturer to help protect the components during storage and shipping.

Model-Year-Specific Components

Subaru introduced a wider timing belt on the STI for the 2013 model year.

Company23 accounts for these model-specific differences by offering application-specific timing kits, helping ensure the correct components are supplied for your vehicle.

OEM-Quality Black Timing Belt

Company23 deliberately uses a black Mitsuboshi timing belt rather than coloured alternatives.

Some coloured timing belts can leave unwanted residue on idlers and inside timing covers as their coloured coatings wear.

Company23's black Mitsuboshi timing belt provides proven OE-manufacturer quality without unnecessary cosmetic coatings. Each belt features additional Company23 branding.

Subaru OEM Part Number Cross Reference

The following Subaru OEM part numbers are provided for component identification and cross-referencing.

Company23 Timing Kit 575

Component	Subaru OEM Part Number
Timing Belt	13028AA240
Timing Belt Tensioner	13033AA042
Smooth Idler (Qty. 2)	13073AA142
Cogged Idler	13085AA080
Small Idler	13073AA230

Company23 Timing Kit 576

Component	Subaru OEM Part Number
Timing Belt	13028AA250
Timing Belt Tensioner	13033AA042
Smooth Idler (Qty. 2)	13073AA142
Cogged Idler	13085AA080
Small Idler	13073AA230

Please Note: This kit does not include a water pump. Verify your vehicle's model year and select the appropriate timing kit before ordering. Additional hardware may be required for certain applications.