KAX 66-5260 66-5261 Front CV Axle for 2004-2010 Toyota Sienna

In this review of the KAX front CV axle pair, the bottom line is straightforward: this replacement set is for owners of Toyota Sienna model years 2004 through 2010 who need a direct-fit, OE standard half shaft without surprises. The reviewer found the set notable for its strict adherence to OE dimensions and robust one-piece heat treatment, which together promise a close match to the original configuration and improved durability in demanding conditions. If you want a like-for-like replacement that emphasizes fit and longevity, this review explains what to expect.

Key Features

• Vehicle Fitment: Designed specifically as front axle shafts for Toyota Sienna model years 2004 to 2010 to ensure direct compatibility with those vehicles.
• OE Standard Design: Manufactured to strict OE standards with 100% inspection of critical butt dimensions so the shafts match the original configuration closely.
• Complete Pair: Supplied as two CV axle shafts, providing both sides of the front axle for a simultaneous replacement job.
• Durable Construction: Components are normalized and treated in one piece for longer service life, making the shafts better able to withstand extreme driving environments.
• Multiple OE References: Cross-references include NCV69607, 665260, 66-5260, 665261, APCVA1336, and related numbers to help verify fitment before purchase.

Who It's For

This axle set is aimed at DIY mechanics and independent shops replacing worn or failing front CV shafts on Toyota Sienna vehicles from 2004 to 2010. The emphasis on OE dimensions and a one-piece treated construction makes it a good choice for owners who want a reliable, durable replacement without modifying the drivetrain.

Those who should look elsewhere include owners of non-Sienna vehicles or later model Siennas beyond 2010; always verify compatibility using the vehicle year, make and model before buying. Also, if you require an aftermarket performance upgrade rather than an OE-equivalent part, this set is focused on fit and longevity rather than performance gains.

Pros & Cons

Pros

• OE standard inspection and critical dimension checks make fitment predictable and reduce adjustment time during installation.
• Delivered as a matched pair so both front shafts can be replaced at once, saving another trip later.
• One-piece normalization and treatment of components improve resistance to wear and harsh conditions.
• Includes multiple OE reference numbers to simplify verification against factory parts lists.

Cons

• Compatibility must be verified carefully against the vehicle fitment list before purchase to avoid ordering the wrong set.
• Does not position itself as a high-performance upgrade; it is an OE-standard replacement.

Specifications

Brand	KAX
Application	Front axle shaft for Toyota Sienna 2004-2010
Included Parts	2x CV axle shafts (front)
OE Reference Numbers	NCV69607, 665260, 66-5260, 665261, APCVA1336
Additional References	4342008020, 4341008030, NCV69608, 66-5261
Construction	One-piece treated, normalized half shaft components

Our Verdict

The KAX 66-5260/66-5261 front CV axle pair is a solid OE-style replacement for Toyota Sienna owners from 2004 to 2010 who need dependable fit and extended service life. Its inspected critical dimensions and durable one-piece treatment make it good value for repairs where reliability and correct fit matter more than aftermarket performance tweaks.

Frequently Asked Questions

Will these axles fit my Sienna?
They are listed for Toyota Sienna model years 2004 through 2010; verify fitment by checking the referenced OE numbers or entering your vehicle year, make and model into the fitment tool before ordering.

Are both axles included?
Yes, the package contains two CV axle shafts intended to replace both front half-shafts at the same time.

How do these compare to original parts?
The axles are built to OE standards with 100% inspection of critical butt dimensions and one-piece treated components, so they are intended to closely match the original configuration and durability.