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MSV Racing High-Flow Water Pump Impeller & DLC Shaft Kit for Yamaha Banshee

Name: MSV Racing High Flow Banshee Impeller/Shaft Kit
Brand: MSV Racing Powersports
SKU: Banshee Impeller
Price: 159.99 USD
Availability: InStock

✔ Up to 20°F Cooler

✔ +2.0 GPM More Coolant Flow Than OEM

✔ DLC-Coated Shaft That Will Never Wear Out

The Yamaha Banshee is legendary for making power—but every horsepower creates heat.

The MSV Racing High-Flow Impeller & DLC Shaft Kit was engineered to dramatically improve coolant flow, reduce operating temperatures, and help prevent power-robbing heat soak in both stock and modified Banshee engines.

Flow bench testing showed the MSV Racing design outflows OEM and competing aftermarket impellers while reducing operating temperatures by up to 20°F.

Proven Benefits

✔ Up to 20°F Lower Engine Temperatures

✔ Up to 2.0 GPM More Flow Than OEM

✔ Up to 1.5 GPM More Flow Than Competing Aftermarket Impellers

✔ Reduced Heat Soak

✔ Improved Cooling Efficiency

✔ DLC-Coated Shaft for Extreme Durability

✔ Includes Bearing and Gasket

✔ Direct Bolt-On Installation

Why Cooling Matters

Every horsepower added to a Banshee creates additional heat.

For every 1 HP added beyond stock output, approximately 2,500 BTUs of additional heat are introduced into the cooling system.

A modified Banshee producing 25 additional horsepower can generate over 62,500 additional BTUs that the cooling system must remove.

When coolant temperatures climb, power begins to fall.

The goal is simple:

Keep temperatures down and horsepower stays up.

More Coolant Flow = More Cooling Capacity

The MSV Racing Impeller was designed to optimize the Banshee water pump housing and maximize coolant flow throughout the RPM range.

Flow testing demonstrated:

Flow Comparison

OEM Impeller = Baseline

MSV Racing Impeller = +2.0 GPM Average Flow Increase

Competing Aftermarket Impellers = Lower Flow

MSV Racing Impeller = +1.5 GPM Average Flow Increase

Increasing coolant flow reduces the cycle time between the engine and the radiator, allowing heat to be removed more efficiently.

The result is lower temperatures and more consistent performance.

Engineered for Maximum Efficiency

Several key design improvements make this possible.

Optimized High-Flow Impeller

Precision-machined from premium 7075-T6-511 aluminum, the impeller was specifically designed to maximize flow and efficiency within the Banshee water pump housing.

Precision Ground Stainless Steel Shaft

The shaft is manufactured from premium 304 stainless steel and incorporates a reduced-diameter cooling-port section developed through FEA analysis.

Benefits include:

Improved coolant entry into the impeller
Reduced turbulence
Reduced backpressure
Increased flow efficiency
Exceptional strength

DLC-Coated Shaft Technology

Unlike conventional shafts, the MSV Racing shaft receives a Diamond-Like Carbon (DLC) coating.

Benefits include:

✔ Extreme Wear Resistance

✔ Self-Lubricating Surface

✔ Reduced Seal Drag

✔ Longer Seal Life

✔ Corrosion Resistance

✔ Virtually Zero Shaft Wear

The DLC coating measures approximately 2500 HV on the Vickers hardness scale—more than three times harder than many heat-treated steels.

Simply Put:

The shaft is engineered to last the life of the machine.

What's Included

MSV Racing High-Flow Impeller
DLC-Coated Stainless Steel Shaft
Koyo Bearing
Custom Laser-Cut Water Pump Gasket

Everything needed for installation.

Customer Review

★★★★★

"Very impressed that I am now running 15° cooler and my kids and wife no longer run it hot!"

— Lonnie Liermann

Replaces OEM Components

4L0-12450-01-00 Impeller Shaft Assembly
93306-30003-00 Bearing (B6300Z)
93306-30002-00 Bearing (Superseded)
3GG-12428-01-00 Housing Cover Gasket
3GG-12428-00-00 Housing Cover Gasket (Superseded)

MSV Racing – Engineering the Future of Powersports Cooling

If you're serious about keeping your Banshee cooler, stronger, and more consistent under load, the MSV Racing High-Flow Impeller & DLC Shaft Kit is one of the most effective cooling upgrades available.

5 stars: 7 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

After roughly 250 miles in various temperatures I am pleased to report the temp gauge has never been over half way when moving. Temp does creep slightly at a stop but quickly returns to normal after getting underway again. I wish the investment was a little less dollars but happy with results

I was struggling to keep my temps down on my 99 banshee after destroying the factory plastic impeller. A quick google search and I learned that these banshees are plagued with overheating problems for a number of reasons. Replaced crank seals and still didn’t help. I tried a macdaddy and a BRPATV impellers and still didn’t seem to keep my temps below 200. I played with the jets like crazy thinking it was jetting with no change.

I finally pulled the trigger on an MSV high flow impeller paired with a mishimoto radiator, hoses and engine ice. The machine runs around 160 on my inline autometer gauge no matter how hard I push it. I don’t have alot of hours on the machine since the install but we have trips planned, will be reporting back on the performance in a later review.

The impeller itself is a well built piece of engineering. The coating on the shaft looks like it will last a long time without grooving, the impeller wheel actually matches the indentation in the cover. Form follows function and the guys at MSV killed it with this design. I really hate buying things twice and in my case 3 times before something works. Im at the point of “buy once, cry once” don’t waste your money on cheap eBay impellers. I should have bought this sooner

I built this Banshee for my wife and kids. When I ride the temps are fine but when they ride it they tend to run it hot. I run the Macdaddy impeller and after reading about this impeller and talking to Jason I wanted to give it a try and would report back. After testing I found out the Macdaddy was far from the best!

Oregon Coast Sand Dunes, Winchester Bay:
Banshee Hill
Ambient Temp 64º
Mostly sunny with very light breeze

Banshee Build:
T-5 Pipes
Keihin carbs with pod filter
4º advanced timing
Dune port
Stock radiator
Cool Head
Inline heat sink with temp gauge
Sonoco 110 w/Yamalube a 40:1

Warm up to 140º

Five hard pulls up Banshee Hill back-to-back-to-back..... with no cool down.
The ATV got no hotter than 165º.
This ATV runs consistent 180º with Macdaddy impeller!

Very impressed that I am now running 15º cooler and my kids and wife no longer run it hot!

was running vitos but the shaft wore out. the black msv coating is super smooth. first ride over the memorial weekend. ran cooler than I remember. winner

I have the MSV Racing impeller in my CR500 that works awesome so it was a no brainier for me to buy the Banshee impeller. I bought the Banshee Impeller kit, optiflow Radiator Cap, supercool, and the redline gear oil all at once. Fast shipping and now my Banshee runs cooler in the desert.

I needed to replace my impellar shaft because my oem was groved. I never want to replace the shaft again. I saw the msv kit and talked with Jason he said to read about diamond like carbon DLC and after that i was sold.

I did the initial testing on this impeller at the Oregon Dunes. A few things impressed me. The part is beautiful! Hate to hide it away. Funny how no one else thought about the reduced shafts size and the DLC coating on the shaft is amazing!
Doing the hill shot testing and then riding the dunes with the MSV impeller the Banshee never lost power when being mercilessley flogged by my 315lbs where my P.D impeller would show power loss due to engine progressively getting hotter and hotter after the second long hill shot. If the shaft never does wear out this impeller/shaft is a steal.

MSV Racing High Flow Banshee Impeller/Shaft Kit

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