Steering Knuckle Arm Bolt (51256-43G00) by Suzuki

Play in the handlebars, a front end that wanders or a knock when you turn means a steering part is worn. The Suzuki QuadSport Z50 & Z90 Steering Knuckle Arm Bolt (part number 51256-43G00) is the genuine Suzuki replacement. It is a factory Suzuki steering part, part of the system that connects the handlebars to the front wheels.

Witchdoctors carries Suzuki steering parts for ATVs. Check the fitment, options and tips below, and contact our team with any questions before you order.

Why Choose Suzuki

Suzuki says its Genuine Parts are the same parts used to build every Suzuki product, and each one is designed for a specific product and model. According to Suzuki, these parts are tested for performance, quality, durability, safety and comfort. Suzuki also introduced the world’s first four-wheel ATV, and it still builds the KingQuad and QuadSport lines today.

Key Features

• Genuine Suzuki part, part number 51256-43G00
• Listed for 27 Suzuki model configurations from 2007–2026
• Made for the factory steering geometry
• Helps remove play and wander from the front end
• Fits the stock mounts, splines and tapers
• A small part that matters: replacing it keeps the parts around it secured and sealed the way Suzuki intended
• Matches the Suzuki part number on your parts diagram, so ordering is simple

Fitment and Compatibility

Listed for 27 model configurations from 2007–2026, including 2026 QuadSport Z90 and 2026 QuadSport Z50. Use the fitment tool on this page to confirm your year and model.

This part number is shared across 2 Suzuki model families: QuadSport Z90 and QuadSport Z50. The fitment list skips some years in that range (2010, 2011, 2012, 2013), so check your exact year. Suzuki sometimes supersedes part numbers. If the number on your old part is different, or your model isn't listed, contact our team before you order.

How the Steering System Works

The handlebars turn a steering column or shaft, which moves tie rods out to the knuckles. On models with electric power steering, a motor and sensors help with the effort. Bushings, bearings, ends and hardware keep the system tight.

Steering parts are safety parts. A worn tie rod end or loose column can cause a loss of control.

How to Check

With the front wheels off the ground, hold the bars and rock each wheel. Any play between the bars and the wheel needs to be tracked down. Check tie rod ends, the column bushing and knuckle bearings.

Buying Guide

• Part number: Match 51256-43G00 to the number on your old part or your Suzuki parts diagram.
• Fitment: Confirm your year and model in the fitment tool; this part is listed for 2007–2026 models.
• Set toe after: Any tie rod or knuckle work means a toe check.
• Use new cotter pins: Replace cotter pins and locknuts you remove.

Installation

Steering work requires supporting the front of the ATV securely. Set toe-in to the spec in the Suzuki service manual after the job. Follow the Suzuki service manual or the manufacturer's instructions for your model.

Before You Install

Have the Suzuki service manual, a torque wrench and new cotter pins ready.

Care and Maintenance

Check for play and grease fittings where your model has them during regular service.

Why Buy From Witchdoctors

Witchdoctors carries ATV parts and accessories for Suzuki, Honda, Polaris, Yamaha, Kawasaki, Can-Am, Arctic Cat and CFMOTO. For Suzuki owners, we list genuine parts by Suzuki part number and model fitment, and our team can help you match a part to your machine before it ships.

Complete Your Ride

• Kingpin Bushing (51236-40B00) by Suzuki
• Dust Seal Clip (09380-31002) by Suzuki
• Left Tie Rod End - Left-Hand Thread (51270-43G00) by Suzuki
• Right Tie Rod End - Right-Hand Thread (51260-43G00) by Suzuki

Wheel Hubs & Adapters · Steering & Components · Suzuki QuadSport Parts · All UTV/ATV/ Side-by-Side Parts

Helpful Guides From the Witchdoctors Blog

• How to Tell If Your UTV/ATV Steering Knuckle Bent
• UTV & ATV Ball Joint Upgrade Guide
• How to Tell If Your UTV or ATV Wheel Bearings Are Bad

Frequently Asked Questions

Is this genuine Suzuki?

Yes. Witchdoctors sells genuine Suzuki parts.

Will this fit my QuadSport Z50 & Z90?

It is listed for 27 configurations from 2007–2026. Use the fitment tool on this page, and contact our team if your model isn't shown.

Why does my ATV wander?

Worn tie rod ends, a loose column or incorrect toe are common causes.

Do I need an alignment after this?

Check and set toe-in after replacing tie rods or knuckles.

What if my old part has a different part number?

Suzuki sometimes updates part numbers. Send us the number from your old part and our team will check whether this one replaces it.

Where to Ride

Put your ride to the test at one of these riding areas, and check each area's rules for youth riders before you go:

• Hatfield-McCoy Trails (Southern West Virginia, WV): a professionally managed system with over 1,000 miles of trails in the mountains of southern West Virginia
• Spearhead Trails (Southwest Virginia, VA): 400+ miles across seven trail systems on one permit

Order Today

Choose the Suzuki QuadSport Z50 & Z90 Steering Knuckle Arm Bolt and add it to your cart. Stock can vary, so contact our team to check availability and lead time.

Shipping

Qualifying Retail orders $159.99 or more will receive free ground shipping. Free Shipping Terms and conditions.

All orders over $500 will require a signature.

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Product Availability

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Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.