Screw (13279-27H00) by Suzuki

A dirty throttle body, a failing injector seal or a weak sensor can cause rough idle, hesitation and hard starting. The Suzuki KingQuad 400 Screw (part number 13279-27H00) is the genuine Suzuki replacement. It is a factory Suzuki part from the fuel injection and throttle body system that meters air and fuel into the engine.

Witchdoctors carries Suzuki EFI and throttle body 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 13279-27H00
• Listed for 43 Suzuki model configurations from 2011–2026
• Made for the factory throttle body and injector layout
• Helps restore a steady idle and clean throttle response
• Fits the factory mounts and connectors
• 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 43 model configurations from 2011–2026, including 2026 KingQuad 400 FSi and 2026 KingQuad 400 ASi. Use the fitment tool on this page to confirm your year and model.

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 Suzuki Fuel Injection Works

Suzuki says the KingQuad 400ASi uses a fuel-injected engine. On fuel-injected models, the throttle body controls how much air enters the engine and the injector adds fuel to match. Sensors report throttle position, pressure and temperature so the system can adjust.

Seals, O-rings, screws and small brackets hold everything in place. If one leaks or loosens, the engine can pull in extra air and run poorly.

Common Problems

Rough idle, stalling when you close the throttle, hesitation off idle and hard starting are the usual signs. Check for air leaks at the throttle body boot, dirty throttle plates and damaged connectors before replacing the larger parts.

Buying Guide

• Part number: Match 13279-27H00 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 2011–2026 models.
• Clean first: A dirty throttle body causes many idle problems.
• Check connectors: Corroded pins can mimic a failed sensor.

Installation

Throttle body parts are usually reached by removing the seat and side panels. Disconnect the battery before unplugging sensors, and replace any O-ring or seal you remove. Follow the Suzuki service manual or the manufacturer's instructions for your model.

Before You Install

Relieve fuel pressure on fuel-injected models and work with the engine cold. Follow the Suzuki service manual for your model.

Care and Maintenance

Keep the air filter clean so dirt stays out of the throttle body. Use dielectric grease on connectors that see water.

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

• O-Ring (13295-14G00) by Suzuki
• Screw (13601-14G00) by Suzuki
• Starter Valve (13411-28H00) by Suzuki
• Throttle Body (13400-27H13) by Suzuki

Fuel Components · Sensors · Suzuki KingQuad Parts · All UTV/ATV/ Side-by-Side Parts

Helpful Guides From the Witchdoctors Blog

• Troubleshooting & Cleaning Your ATV or UTV Throttle Body
• How Can I Tell If My UTV Fuel Injectors Are Clogged or Failing?
• How to Troubleshoot an ATV/UTV Idle Air Control Valve

Frequently Asked Questions

Is this genuine Suzuki?

Yes. Witchdoctors sells genuine Suzuki parts.

Will this fit my KingQuad 400?

It is listed for 43 configurations from 2011–2026. Use the fitment tool on this page, and contact our team if your model isn't shown.

Why does my ATV idle high?

Air leaks around the throttle body or intake boot are a common cause. A sticking throttle cable can also hold the throttle open.

Do I need to reset anything after replacing a throttle body part?

Some models have a reset or adjustment procedure. Check the Suzuki service manual for your model.

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:

• Imperial Sand Dunes Recreation Area (Brawley, CA): the largest mass of sand dunes in California, stretching more than 40 miles
• Little Sahara State Park (Waynoka, OK): over 1,600 acres of sand dunes that range from 25 to 75 feet high

Order Today

Choose the Suzuki KingQuad 400 Screw 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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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.