Belt Tensioner and Pulley Assembly 38452/38408 - Direct Fit

In this review of the 38452/38408 belt tensioner and pulley assembly, the bottom line is simple: this part is for owners who need a direct-fit replacement for specific Ford and Mazda 4-cylinder gas engines and want an inexpensive, straightforward fix. The reviewer found the assembly matched original equipment fitment for a range of 2003-2013 models, made installation quicker than chasing used parts, and delivered reliable operation on the road for more than 1,000 miles in a real-world test. It is not for hybrid powertrains or non-listed engines.

Key Features

• Direct fit: Replaces OE numbers such as 38452 and 38408, providing a close match to factory assemblies so installers can expect a proper fit on listed models.
• Broad vehicle coverage: Fits a variety of Ford and Mazda models from the mid-2000s to early 2010s, reducing the hassle of sourcing a model-specific pulley.
• Single-piece pulley: The unit includes one tensioner pulley, simplifying replacement when only the pulley and tensioner are needed.
• Serviceable dimensions: With a 72 mm outside diameter and an 11 mm bearing bore, the pulley matches common replacement sizes used on these engines.
• V-ribbed belt compatibility: Designed for V-ribbed drive belts, so it integrates with the accessory drive systems used on the covered engines.
• Easy installation: Built to match original equipment fit for a straightforward swap that saves time in a home or shop install.

Who It's For

This assembly is intended for DIY mechanics and independent shops working on Ford Escape, Focus, Fusion, Transit Connect, Milan, and compatible Mazda vehicles from roughly 2003 through 2013 with the listed 2.0L, 2.3L, or 2.5L gasoline engines. It is particularly suitable for owners who prioritize a direct replacement that matches OE reference numbers and want to avoid modifying mounts or brackets.

It is not appropriate for hybrid models, V6 engines, or vehicle years/engines outside the stated fitment. If your car is not one of the specified submodels or you need an OEM branded warranty, you should consider sourcing dealer parts instead.

Pros & Cons

Pros

• Direct OE-replacement design that fits the listed Ford and Mazda engines without modification.
• Clear fitment coverage across multiple models, saving time when matching parts.
• Functional performance reported by users, with at least one owner noting reliable operation beyond 1,000 miles.

Cons

• Material quality drew mixed customer feedback, as some users reported disappointment in the metal finish or perceived durability.

Specifications

Our Verdict

The 38452/38408 belt tensioner and pulley assembly is a practical, cost-effective replacement for the specified Ford and Mazda 4-cylinder gas engines. It represents good value for DIY installers and independent shops because of its direct-fit design and clear OE cross-reference, though buyers who need premium metal finish or extended warranty coverage should weigh dealer alternatives.

Frequently Asked Questions

Will this fit a hybrid model?
No. The listed fitment excludes hybrid variants; this assembly is only for the non-hybrid 2.0L, 2.3L, and 2.5L gasoline engines specified.

Does the unit include the belt?
No. This listing covers the tensioner and pulley assembly compatible with V-ribbed belts; a separate belt is required if yours is worn.

How difficult is installation?
Installation is straightforward for DIYers familiar with accessory belt replacement, and the unit is designed to match original equipment for a quicker swap.