An Image of the Genuine Yamaha Logo reading 'GENUINE OEM PART' 1CT-E6377-00-00
Nut, Lock by Yamaha 1CT-E6377-00-00 OEM Hardware 1CT-E6377-00-00 Off Road Express
Four Yamaha off-road vehicles displayed with the Yamaha logo above them on a white background.
An Image of the Genuine Yamaha Logo reading 'GENUINE OEM PART' 1CT-E6377-00-00
Nut, Lock by Yamaha 1CT-E6377-00-00 OEM Hardware 1CT-E6377-00-00 Off Road Express
Four Yamaha off-road vehicles displayed with the Yamaha logo above them on a white background.
Badge

Lock Nut by Yamaha

$5.49 USD
Normally ships in 6-8 business days

Inventory:

Loading..
SKU: 1CT-E6377-00-00
In stock and ready for shipping

SKU: 1CT-E6377-00-00

Yamaha UTV/ATV & Side by Side Propeller & Drive Shaft - Available at buywitchdoctors.com

Product Specifications: Genuine OEM Yamaha Lock Nut, Part # 1CT-E6377-00-00.

Keep your machine running like new with a genuine Yamaha Propeller & Drive Shaft paired with premium maintenance parts from buywitchdoctors.com. The propeller shaft, also called the drive shaft, carries engine power from the transmission to the front and rear differentials, spinning at high speed while flexing with suspension movement through its joints and splines. Because it turns constantly under load, its balance and condition directly affect smoothness, drivetrain life, and how well your machine puts power to the ground. Riders most often replace a propeller and drive shaft after vibration under acceleration, clunking or clicking when you let off or get on the throttle, a bent or dented shaft from a rock strike or rollover, worn or loose splines, grease leaking from a torn boot, rust, or play at the joints.

Why Choose Genuine OEM Yamaha Parts?

Choosing original equipment manufacturer (OEM) parts ensures your vehicle maintains its factory-standard performance, reliability, and fuel efficiency. Genuine parts eliminate the guesswork of aftermarket alternatives, offering a seamless integration with your engine's configuration.

  • Exact-Fit Design: Matched to Yamaha's original bolt patterns, sealing surfaces, and dimensions for a leak-resistant fit.
  • Factory-Spec Quality: Built to the same standards as the parts installed on your machine at the factory.
  • Peace of Mind: Skip the trial and error of universal or aftermarket parts that may not seal or align correctly.

Premium Materials & Precision Engineering

Crafted to strict factory tolerances, these components utilize high-grade alloys and chemical-resistant seals. This specialized engineering withstands harsh off-road vibrations, extreme temperatures, and modern fuel additives, preventing premature wear and leaks. The propeller and drive shaft is made from strong, fatigue-resistant steel with precisely cut splines, balanced construction, and durable joints and boots, so it spins true, transmits torque smoothly, and resists bending and wear under heavy loads and constant vibration.

Comprehensive Model Fitment (2015-Current)

This genuine OEM part is engineered for a wide range of Yamaha side-by-side (SxS) and all-terrain vehicles (ATV) built from 2015 to the current model year. Please verify your series matches below:

Utility Task Vehicles (UTVs / Side-by-Sides)

  • Viking Series: Viking 700 EPS, Viking 700 Ranch Edition, Viking VI EPS
  • Wolverine Series: Wolverine R-Spec, Wolverine X2 850, Wolverine X4 850, Wolverine X2 1000, Wolverine RMAX2 1000 (Sport, XT-R, Limited), Wolverine RMAX4 1000
  • YXZ Series: YXZ1000R, YXZ1000R SS

All-Terrain Vehicles (ATVs)

  • YFZ Series: YFZ50, YFZ450R, YFZ450R SE
  • Raptor Series: Raptor 90, Raptor 110, Raptor 700, Raptor 700R, Raptor 700R SE
  • Grizzly Series: Grizzly 90, Grizzly 110, Grizzly 700 EPS, Grizzly 700 SE, Grizzly 700 XT-R
  • Kodiak Series: Kodiak 450, Kodiak 450 EPS, Kodiak 700, Kodiak 700 EPS, Kodiak 700 SE

⚠️ IMPORTANT DISCLAIMER: Fitment can vary by production date and sub-model trim. Always verify your exact original equipment part number from your vehicle's schematic or consult a certified technician before finalizing your purchase to guarantee flawless compatibility.

Other Popular Parts & Secondary Accessories

  • Propeller & Drive Shaft Components: Components such as boots, clamps, bolts, couplers, and seals complete the shaft assembly. Replace worn or torn pieces whenever you service the shaft so grease stays in and grit stays out.
  • Propeller & Drive Shafts: A complete shaft is the quickest fix when the tube is bent, the splines are worn, or the joints are beyond repair. Choosing a full assembly can save time compared with rebuilding several worn parts.
  • U-Joints: U-joints let the shaft flex as the suspension moves and are a common wear item. Check them for play, roughness, or rust whenever the shaft is out, and replace them as a set for smooth, quiet power delivery.
  • Center Drive Shaft Bearings: The center bearing supports the shaft on models with a split or multi-piece design and keeps it aligned. Replace a bearing that is noisy, loose, or has a cracked rubber mount so the shaft does not whip or vibrate.

Frequently Asked Questions (FAQs)

Q: How do I know when my Yamaha propeller and drive shaft needs to be replaced, and how do I confirm the right one for my machine?
A: Look for vibration under acceleration, clunking or clicking, a bent or dented tube, worn or loose splines, torn boots, grease leaks, rust, and play at the joints. Before replacing the shaft, inspect the U-joints, center bearing, mounting bolts, and the differential and transmission yokes, since worn joints or loose hardware can cause similar symptoms. Because shafts vary by model, model year, and front versus rear position, confirm the correct part and installation procedure using your Yamaha service manual or factory schematic, or contact us with your model and VIN and we will help you match it.

Q: How do mud, water, sand, and heat affect a propeller and drive shaft on the trail?
A: Mud, sand, and water can work into joints and splines through torn boots and wash out grease, causing rapid wear and rust, while packed mud can throw the shaft out of balance. Rocks and stumps can also dent or bend an exposed tube. After a muddy, wet, or sandy ride, rinse the underside, check the boots and joints for damage, and look for grease seepage or new vibration. Follow your Yamaha service manual for correct installation and greasing guidance so your shaft keeps spinning true.

PRO TIP: Learn More about Yamaha OEM vs. Aftermarket Parts

PRO TIP: How to Diagnose a Failing UTV or ATV Propeller Drive Shaft

PRO TIP: Squeaking or Vibrating Drivetrain? How to Tell If Your UTV or ATV U-Joint Is Bad


Upgrade Your Ride's Drivetrain & Drive Shaft Performance Today
A factory-fit propeller and drive shaft delivers smooth, strong power from the transmission to the wheels on every ride. Complete your drivetrain service with matching propeller & drive shaft components, propeller & drive shafts, u-joints, and center drive shaft bearings so your whole shaft assembly stays balanced, lubricated, and trail-ready. Order your genuine Yamaha replacement components today from buywitchdoctors.com and experience top-tier off-road performance!

Are You Looking to Find Great Places & Adventurous Trails to Ride Your UTV, Side by Side or ATV? Check out these highly recommended places:

General Safety Warning & Installation Requirements

Your safety is our top priority. Whether you are maintaining a Victory® or Indian® Motorcycle, or servicing a UTV, ATV, or Side-by-Side, proper installation is vital to the performance and safety of your vehicle.

Important:
Warning: Failure to follow manufacturer-specified installation procedures and safety requirements can result in mechanical failure, loss of vehicle control, serious injury, or death.

Important Fitment Disclosure

At Witchdoctors, we want to ensure you get back on the road or trail as quickly as possible. Correct fitment is the most critical step in purchasing parts for your Victory® or Indian® Motorcycle. Also for your Polaris®, CFMoto®, Arctic Cat®, Yamaha®, Honda®, Can-Am®, Kawasaki® UTV and ATV.

Verification Required: While we strive for 100% accuracy, vehicle manufacturers often make mid-year production changes. Always verify your specific year, make, and model before finalizing your order.
Read More

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

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.

Please see International Shipping page for orders shipping outside the US.

See our full Shipping Policy page for further details.

Product Availability

We show real time product availability. These products normally ship the same business day but may ship from one of our warehouses across the country. If an item requires additional processing time you will be notified.

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 business 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.

Found URLs: