Rear Axle Coupler Q520-331006 by CFMOTO

Genuine CFMoto Rear Axle Coupler — OEM Part #Q520-331006

Get back on the trail with a genuine CFMoto Rear Axle Coupler. Built for the CForce models, this OEM part matches the factory splines, length and bearing fit, so it installs without modification and handles full suspension travel.

Axles, CV joints, bearings and hubs carry power to the wheels while the suspension cycles through its travel. They take constant shock loads, and any wear shows up as clicking, vibration or play. This part is confirmed for 6 CFMoto models from 2013 to 2022. See the full fitment list below.

Rear Axle Coupler at a Glance

• OEM part number: Q520-331006
• Brand: CFMOTO (genuine factory part)
• Part type: Axle Hardware
• Position: Rear
• Fits: CForce ATV models, 2013–2022
• Condition: New

CFMoto Models and Years This Rear Axle Coupler Fits

Genuine CFMoto part #Q520-331006 fits the models and years below. To be certain, match the part number to the factory parts diagram for your machine or contact us with your VIN before ordering.

CFMoto CForce ATV Fitment

Why Choose a Genuine CFMoto OEM Rear Axle Coupler?

• Exact spline count and length for a direct fit
• Factory CV joint angles for full suspension travel
• Designed for the torque of the listed engines
• Sealed boots and bearings to keep out water and grit
• Sold by Witchdoctors, a CFMoto OEM parts source with factory part numbers and diagrams for every listing

Features and Materials

Key Features

• Genuine CFMoto OEM axle or hub part, part #Q520-331006
• Matches original spline, length and bearing dimensions
• Heat-treated shafts and joints where applicable
• Boots and seals designed for mud and water
• Fits the listed CFMoto models without modification

Materials and Construction

CFMoto axles use heat-treated alloy steel shafts and CV joints packed with high-temperature grease and sealed with thermoplastic or rubber boots. Hubs and bearings use hardened steel races and seals designed for water crossings and mud.

Common Reasons Riders Replace This Part

• Replacing an axle with a clicking or broken CV joint
• Fixing torn boots before dirt ruins the joint
• Replacing worn wheel bearings and hubs
• Repairs after a hard impact or broken axle

Signs Your Rear Axle Coupler Needs Replacing

• Clicking or popping when turning under power
• Torn or leaking CV boots with grease slung around the wheel
• Vibration at speed or under acceleration
• Play or grinding in the wheel bearing
• A broken axle or wheel that will not drive

Installation Tips

1. Raise and support the machine safely and remove the wheel.
2. Remove the axle nut. Many CFMoto axle nuts are single-use, so replace it.
3. Separate the suspension as needed to remove the old axle, keeping the boot off sharp edges.
4. Install the new part, making sure the splines fully seat and the circlip engages.
5. Torque the axle nut and suspension hardware to spec, then reinstall the wheel and test-ride.

Not sure whether to tackle it yourself? Read when to seek professional help or DIY before you start.

CFMoto Parts Diagrams for This Part

Part #Q520-331006 appears in these factory CFMoto parts diagrams. Open the diagram for your model to see exactly where it goes and which parts are installed with it:

• Rear Axle diagram — 2022 CFMoto CForce 400
• Rear Axle diagram — 2022 CFMoto CForce 500 S
• Rear Gearcase diagram — 2019 CFMoto CForce 600
• Rear Axle diagram — 2018 CFMoto CForce 500 HO

Other OEM Parts in This Assembly

Doing the job right? These genuine CFMoto parts are installed alongside the Rear Axle Coupler and are often replaced at the same time:

• CFMoto Magnetic Oil Drain Plug (M14X1.25X12) (#0180-332100)
• CFMoto Washer 14 (#0180-011006)
• CFMoto Oil Seal 35X61X9 (#0180-331007)
• CFMoto Rear Differential Case (#Q520-332001-00002)
• CFMoto Rear Differential (#Q520-330000-00001)
• CFMoto Bolt M20x1.5x12 (#0180-332003-0010)

Recommended Accessories and Maintenance Supplies

Pair your Rear Axle Coupler with these parts and supplies:

• UTV axles — OEM-style and heavy-duty axles
• CV boots — CV boot kits and clamps
• Wheel bearings — Wheel bearings and seal kits
• Bearing grease and lubricants — Grease for bearings and joints
• CFMoto OEM parts diagrams — find every factory part for your model

Helpful Guides from the Witchdoctors Blog

• UTV CV Boots Buyer’s Guide: OEM vs. Aftermarket Options
• Learn about UTV/ATV axle and cv boot guards | Guard Your Axles
• How to Tell If Your UTV or ATV Wheel Bearings Are Bad
• CFMoto OEM vs. Aftermarket Parts: Which Is Better?

Frequently Asked Questions

What is the OEM part number for this CFMoto Rear Axle Coupler?

The genuine CFMoto part number is Q520-331006. Use it to match this part to your factory parts diagram.

Which CFMoto models does part #Q520-331006 fit?

It fits the CForce 400 (2016–2022); CForce 500 HO (2016–2018); CForce 500 S (2017–2022); CForce 600 (2019); CForce 800 (2017); CForce 800 X8 (2013–2016).

Is this a genuine CFMoto part?

Yes. This is a genuine CFMOTO OEM part, the same part number used by CFMoto at the factory, not an aftermarket copy.

Do I need a new axle nut?

Many CFMoto axle nuts are designed for one use. Check the parts diagram and replace the nut and cotter pin if specified.

Can I replace just the CV boot?

If the joint is not clicking and the grease is clean, a boot kit can work. If dirt or water got in, replacing the axle is usually the better choice.

Is OEM as strong as a heavy-duty aftermarket axle?

It is built to CFMoto's factory standard for stock machines. If you run much larger tires or a lift, a heavy-duty axle may be worth considering.

Order Your Genuine CFMoto Rear Axle Coupler Today

Ride with confidence on parts built for your machine. Order the genuine CFMoto Rear Axle Coupler, OEM part #Q520-331006, from Witchdoctors today and keep your CForce models running the way CFMoto designed it.

• How long will it take to receive my order?
• Shipping and return policy
• Questions about fitment? Contact us
• Shop all CFMoto OEM parts

Where to Ride Your CFMoto

Ready to put your machine to work? These off-road parks welcome both ATVs and UTVs. Check each park's current rules, vehicle-width limits and permit requirements before you go.

• Silver Lake State Park ORV Area — Mears, Michigan: 450 acres of open sand dunes on Lake Michigan
• Spearhead Trails — southwest Virginia: a multi-trail system across the Virginia coalfields