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K-Tuned - Complete K-Series Alternator Water Plate Kit (W/ Electric Water Pump)

K-Tuned - Complete K-Series Alternator Water Plate Kit (W/ Electric Water Pump)


Category: Cooling Components
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Regular price $649.99
Regular price Sale price $649.99
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  •  All K-series engines
* Excludes K24Z, K24Y and K20C series engines with D/B Series alternator
* Does NOT fit D17 alternator
* This kit has been upgraded to use the crank pulley from a K20A Type R or medium sized K20A2, if using a larger crank pulley you may want to use a longer belt
* If using our water pump bracket you will need 2 x 12an 120 degree fittings
* Water pump provides a 20 gallon flow rate per minute

The first part developed by ETD Racing, now K-Tuned, was the electric water plate kit. Since our release we have made several advances and improvements to the design. In recent years the market has seen several knock offs. While others are happy simply try and copy our design we strive to always improve. Recently we released our K-Series Water Plate Kit which utilizes the K-Series Alternator. Now, we are excited to provide our redesigned Water Plate Kit for B-Series Alternator. 

The new water plate kit now incorporates two o-rings seals. You no longer need to seal the water plate with Honda Bond. This will make it easier switching the water plate between blocks. The alternator brackets have both been redesigned to be stronger and incorporate more adjustment. The top bracket allows the alternator to properly pivot with the alternator to adjust belt pressure. The water inlet now uses -16AN port with a custom fitting which allows eight different positions. 

For several years now racers have used electric water pumps to reduce the power robbing effects of parasitic drag from their engines.  By reducing the number of accessories the crank needs to turn there can be some impressive gains.  The K-Tuned Water Pump Block Off Plate system was designed to setup a K-series engine to run an electric water pump cooling system.  It replaces all the bulky and heavy OEM accessories with a simple lightweight aluminum plate.  The kit is designed to allow the perfect flow of coolant and also effectively release unwanted crankcase pressure.  The water port is sealed just like it was from the factory using an o-ring seal.  The breather port is threaded for an 8AN fitting and can easily be routed to any catch can set-up.

We have also designed an alternator bracket setup to be used with lighter Honda B and D alternators.  We have put together a series of kits allowing you to choose which parts you want, so you can build a system that works perfectly for your application.  This is a must have for serious race car builds and a true favorite among All Motor racers. 

Key Features:

Replaces the huge oem water passage with a lightweight block-off plate
Deletes oem water pump, auto tensioner, P/S, A/C and EP3 pulley
Alternator mounting bracket available with most kits
Belt and fittings available on some kits
Electric water pump and pump fittings available with complete kit
Designed to be used with lighter D/B series alternators
CNC machined 6061 aluminum
Large coolant port is tapped for -16AN thread

Smaller Breather port is tapped for -8AN thread

Frequently Asked Questions:

Q1 -  Is the the water plate kit a good fit for my setup?

A2 -The water plate kit is designed for race only use. It is not recommended on street cars or stock/mild builds. Since the water plate is full flow at all times it can over-cool cars that are not under WOT most of the time. It does not have a thermostat or regulated flow. 

Q2 -  Can I run AC, Power Steering, Supercharger, or any other belt driven accessories?

A2 -The simple answer is NO. The water plate kit will run at most only an alternator depending on which kit you select. There is no provision to run any other accessories. However, nothing is impossible. We have seen some adapt our kits to run some accessories but this is something they have done on their own. 

Q3 -  Is the B-Series alternator plug and play?

A3 -We have found there are 3 different B-Series alternators connectors. Unfortunately, during our testing we have not been able to match an exact option which it comes on. We suggest comparing your K-Series alternator with the new b-series one to match the connector. Or you will need the matching connector to rewire it. If you do find an exact match we are happy to hear what you found it on to better help future customers.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations. For international orders, please Contact Us. If you select US shipping rates and are shipping internationally, please be advised you will be contacted to compensate the difference in shipping fees.

Processing takes about 3 to 5 business days before your order ships. We do not process or ship orders on weekends. If you order an item that's on backorder, we will reach out with an estimated arrival time. If you have any questions about shipping make sure to email us at or call our reps today at 732-638-5268.

If by any chance, your package that has been delivered by the carrier is lost/stolen, YOU (THE BUYER) are responsible for working with the carrier and us, Tri-State Motorsports to recover your package. You must contact us and the shipping company within 48 hours of delivery for lost/damage claims. You are covered by the basic insurance amount APPROVED by the shipping center. We DO NOT refund or reship product for claims that are denied by the shipping company.


When will my product ship out?

Processing takes about 3 to 5 days before your order ships. Some orders may take longer than usual to process and ship. If you order an item that's on backorder, we will reach out with an estimated arrival time. Refunds are subject to a 20% restocking fee. Cancellations are subject to 10% cancellation/processing fee under no exceptions.

What's the Warranty on our products?

Unless the product is manufactured by Tri-State Motorsports or TSM Race, ALL Warranties go through the Manufacturer directly. Please visit their official website and get in contact with them in regards to your warranty. We will supply you with any invoice or tracking information the manufacturer asks you for.

Do you offer any promotions?

One of our major promotions is the TSM Bucks Loyalty Program. You will earn 1 TSM point for every dollar you spend with us. These points can be redeemed for rewards when you reach certain thresholds. 

TSM Bucks Info

If you subscribe to marketing emails, you will be given a discount code for 5% off your order that you can use at any time. Our Instagram page also has a variety of weekly promotions in our stories and posts. Some restrictions may apply depending on MAP policies.

What payment methods are accepted?

Tri-State Motorsports accepts American Express, Discover, Mastercard, and Visa. You can also pay over time with Affirm and Klarna. Express checkout methods include:

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  • Venmo

How can I finance my purchase with Affirm?

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