We are now pressing together and pre-assembling KOYO Unit Bearings with Toyota Spindles for Type 3 & 4 IFS 4WD Knuckles! This is everything you need to replace your wheel hub parts in one easy-to-install pre-assembled Japanese-made long lasting and high performance unit that does not require a press or special tools on your part!

Pre-assembled parts:

• Toyota/KOYO Front Unit Bearing, MCAX-1-2012
• Toyota Spindle Wheel Hub, MCAX-1-2014
• Toyota Outer Seal O-Ring for Hub to Bearing, MCAX-1-2015
• Toyota Mounting Bolts (4), installed, MCAX-1-2013

Additional parts:

• Toyota O-Ring for Unit bearing to Knuckle, MCAX-1-2016
• Toyota Cotter pin for CV Axle Nut, MCAX-1-2007

Why Genuine Toyota Parts Matter
When it comes to the critical components of your vehicle, there’s no room for compromise. Our assemblies are crafted using 100% genuine Toyota parts, imported directly from Japan. These are the exact parts your vehicle was designed to use, ensuring perfect fit, unparalleled reliability, and maximum safety.

Pre-Assembled for Your Convenience
We know not everyone has access to specialized tools or presses, which is why our assemblies come pre-pressed, ready to install straight out of the box, saving you time and hassle, allowing you to get back on the road or trail sooner.

The Marlin Crawler Difference: Quality You Can Trust

• Uncompromising Quality: Built with genuine Toyota unit bearings, spindles, JIS Grade 11 bolts, and seals, our assemblies offer the highest level of reliability and durability. These are the same components trusted by Toyota dealerships and service centers.
• Proven Performance: These same Genuine Toyota parts are now proven to withstand six King Of The Hammers competitions under heavy V8 4Runner racecars as well as over 60,000 miles of intense use on BigMike’s 2016 Tacoma—including daily driving, highway trips, and rock crawling—massive 40×13.5″ tires, all with zero spindle, wheel stud, unit bearing, or seal failures. We only trust genuine Toyota components to perform flawlessly and is the standard of excellence you can expect with this kit.
• Safety First: Your front wheel bearings and spindles are crucial to the safe operation of your vehicle. Choosing non-Toyota parts can lead to rapid wear or even failure. With our assemblies, you’re investing in the peace of mind that comes from knowing your vehicle is equipped with the strongest, most reliable components available.

Invest in Reliability, Invest in Your Vehicle
Whether you’re a dedicated off-roader or someone who just wants the best for their daily driver, our pre-pressed 4WD wheel hub unit bearing assemblies deliver unmatched performance and longevity. Don’t settle for less—choose the quality and peace of mind that only genuine Toyota parts can offer that last and perform under the most demanding of conditions.

Install notes
Use a crowfoot wrench or similar. Lubricate bolts with a drop of oil or anti-seize and torque to 44 lb-ft. If you do not have a torque wrench, just imagine torquing half that of a wheel lug nut per bolt.