SKU: 34233046155

4Pistons Ported K-series Oil Pump - K20 / K24

Sale price$218.25 Regular price$242.50
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

4Pistons Ported K-series Oil Pump - K20 / K24The stock K Series oil pump is a great piece for up to 8,000 rpm. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4P's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested well over 11,000 rpm with great success. 4P starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow, and modify the outside housing so that

The stock K-Series oil pump is a great piece for up to 8,000 rpm. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4P's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested well over 11,000 rpm with great success. 4P starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow, and modify the outside housing so that it can be used on all K24 and K20 engines (including the K20Z3). The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.

This pump has some advantages over the S2K pumps that are commonly used. The pickup is further forward, and lower in the pan, and it frees up an additional 1-2hp. This is the chosen pump for all of our racing engines for many of these reasons.

Installation Kit Includes:

-Oil Chain
-Chain Guide
-Windage Tray
-Baffles

Installation Kits are for K20Z3 and K24 applications.

Installation instructions with photos are included with all pumps.

*These have to be used with an RRC aluminum oil pan due to pickup location.  RRC is a JDM Type R and K20Z3 used here in the USA.*

*Oil Pan Part #  11200-RRC-000*

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34233046155

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Niko Garcia
Waukegan, US
★★★★★ 4
Good shirt
Size: Medium, Color: Teal 02
Love the color and the design of the shirt. The small threads it’s made out of starting to come loose though. Now when look down at chest and stomach area, there are 15+ little strings that pop out of the shirt.
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Reviewed in the United States on April 25, 2026
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Greg
Battle Creek, US
★★★★★ 5
Awesome shirt!
Size: Medium, Color: Blue, Size: Medium, Color: Blue
This is a nice shirt! Let me start by saying I am 6 foot 2, 195pounds with about a 40 inch chest, 42 inches on a good day! Ha ha. I ordered a medium because I wanted an athletic fit. The medium fits just right. For those wanting a normal, roomier fit I would recommend the large for my size. I’ll get a lot of compliments when I wear this shirt. What I like about it is that it is wrinkle free and looks great, I would not wear it on a super hot day with a snug fit. I do live in Florida, so that makes a difference. I also ordered the black one, both the blue and the black look very good for dress /casual. It’s polyester so it’s not super soft, which is OK. That also means it does not shrink.
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Reviewed in the United States on October 4, 2025
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Tara and Jeff
Grantham, US
★★★★★ 3
Nice shirt but seems to be confusion over the color/pattern.
Size: Medium, Color: Teal 02
Nice shirt. Looks sharp and feels comfy. Lightweight and breathable. Definitely an "upscale" polo that looks like it costs more than it does - so very happy with the value. Fits as expected for the size. The only issue is that I ordered a color and style called Teal-02 and they sent me Navy-01. The color and pattern is different. It's not bad, just not what I ordered. I requested a resend of the Teal...and got the same Navy color again. Annoying.
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Reviewed in the United States on May 7, 2026
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T
Fort Morgan, US
★★★★★ 5
Nice, but a bit transparent.
Size: X-Large, Color: Lake Green
I love the feel of this shirt. It is very cool and comfortable. The only thing I will add is that this shirt is a bit see-through. If I wear it, I do not feel comfortable unless I have an undershirt on.
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Reviewed in the United States on May 13, 2026
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John
Chelsea, US
★★★★★ 5
Nice shirt
Size: XX-Large, Color: Black
Great look Great fit... got it in a few colors
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Reviewed in the United States on April 15, 2026

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