SKU: 56243031138

4Piston Racing Ported B-series Oil Pump

Sale price$247.05 Regular price$274.50
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Pay in installments of $68.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4Piston Racing Ported B-series Oil PumpThe stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4Piston Racing's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. 4Piston starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil

The stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. 4Piston Racing's ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. 4Piston starts with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-thousand dollar investment.

Fits all B-Series Engines!

Add a 4P Rooster Ring to help with the install! Simply slide the Rooster Ring onto the crank snout, then slide the oil pump over it into place. It perfectly centers the pump, expands the lip seal and keeps it in the proper orientation helping it slide perfectly onto the crank. No more fighting it. Once you use it, you'll praise how this simple tool can make such a big difference.

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: 56243031138

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4.7 ★★★★★
Based on 20 reviews
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A
Verified Purchase
Ann Marie Licciardello
Phoenix, US
★★★★★ 3
Size
Little smaller & flimsy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
M
Verified Purchase
Millie A.
New York, US
★★★★★ 4
Paper Plates
I like the design! We use paper plates most of the time! I would appreciate a plate with a sturdier Weight. The size is good for my husband and I. The finish is good and holds up to cutlery. The price is acceptable.
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Reviewed in the United States on June 12, 2024
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 1
DONT PURCHASE
You will end up with a total of 125 plates. They are charging the price of an entire case(500) of plates.
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Reviewed in the United States on December 27, 2016
D
Duffy
Bozeman, US
★★★★★ 5
Great for work
good for work.
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Reviewed in the United States on June 13, 2024
L
Lee
Whiting, US
★★★★★ 5
These plates are very convenient for busy days and parties, hold up well with regular meals.
Size: 10inch-140, Size: 10inch-140
I grabbed these for the upcoming summer because we have so many events coming up: graduation party, kids sleepovers, family gatherings and honestly even for those lazy evenings when I am just too tired to deal with dishes. I am actually very happy with them because they hold up much better than many disposable plates I've tried before. The plates feel sturdy enough for regular meals and snacks without immediately bending or getting soggy. One thing I appreciate is that they were even reusable for lighter drier snacks like nuts, crackers or cookies. If the food wasn't greasy or wet, we could easily use the plate a second time which actually helped reduce waste during busy gatherings because i noticed people going around and reusing for multiple foods. My son use them to do a quick warm up in the microwave for a slice of pizza but was only for 30 seconds and it seemed fine so i can say they are microwave safe but for shorter cycle. I love the white background with blue trim details. These are really practical plates to keep stocked up at home considering the great bulk value of 140 plates, very convenient, sturdy and a huge help when you want easier cleanup without constantly washing dishes. Lifesaver! Here is how I rate items: 5 Stars = Exceeds expectations, a good find. 4 Stars = Very good quality, worth trying. 3 Stars = Decent and does what is says. 2 Stars = Below expectations with noticeable issues. 1 Star = Very poor quality, would not recommend.
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Reviewed in the United States on May 21, 2026

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