SKU: 63251966171

TRACTUFF K20Z3/ K24A2 WATER BYPASS ADAPTER

Sale price$88.16 Regular price$97.95
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

TRACTUFF K20Z3/ K24A2 WATER BYPASS ADAPTER**Now included: 1 x 90 1 2" NPT to 5 8 hose barb, and 1 x 1. 00 hose clamp** Our K20Z3 K24A2 water bypass adapter allows RAA, RBC, RBB, and RSP cylinder head owners to run the more popular aftermarket intake manifold options that were designed for the earlier PRB PRC flange. The PRB PRC style manifolds do not have an integrated coolant passage so the coolant bypass hole is left open when used together. Even if you don't plan on running a PRB PRC style

**Now included: 1 x 90° 1/2" NPT to 5/8” hose barb, and 1 x 1.00” hose clamp**

Our K20Z3/ K24A2 water bypass adapter allows RAA, RBC, RBB, and RSP cylinder head owners to run the more popular aftermarket intake manifold options that were designed for the earlier PRB/ PRC flange. The PRB/ PRC style manifolds do not have an integrated coolant passage so the coolant bypass hole is left open when used together. 

Even if you don't plan on running a PRB/ PRC style manifold... there are plenty of benefits that make this product a must have! The biggest benefit is in the reduction of intake manifold temps by eliminating the heat transfer/ heat soak associated with hot coolant running through the manifold. By modifying the manifolds flange (cutting off coolant portion) and running our adapter the coolant is kept away from the manifold completely, just like what you would find on the earlier PRB/ PRC heads, so NOW your Hondata IM gasket will really work!! We've seen drops as much as 18°!! Not to mention, the additional benefit of no longer having to drain the coolant when removing the intake manifold for maintenance or swaps... makes things a real SNAP!

 

We recommend a TracTuff Bypass Hose Fitting when connecting the OEM bypass hose.


Installation Guide

 

 



 

 

Start by selecting one of the two o-rings (one is a back-up) and install it into the recess on the adapter’s backside. Set the adapter aside.

 

 

 

 

 

 

 

 

Grab the stainless steel link and longer 40mm Genuine Honda flanged bolt and install the bolt into the smooth hole in the link.

 

 

 

 

 

 

 

 

Install the bolt and stainless link into the right-most intake manifold flange bolt hole. Tighten lightly with the link facing upward.

 

 

 

 

 

           

 

 

Grab the shorter 28mm Genuine Honda flange bolt and adapter and install the bolt into the lower bolt hole.

 

 

 

 

 

 

 

 

Take the bolt and adapter and install it over the exposed water & egr ports. Thread the bolt into the cylinder head until it is hand tight.

 

 

 

 

 

 

 

Grab the stainless steel set screw and thread it into the stainless link. The pointed set screw will tighten into the hole well but in some extreme cases it may be a good idea to use some medium grade Loctite.

 

 



 

 

 

 

 

Swing the stainless link and set screw down until it lines up with the pilot hole of your choice.

 

 

 

 

 



 

 

Tighten the 8mm intake manifold and Water Bypass bolts to 18 lb. ft. of torque and tighten the set screw until you have sufficient crush on the adapters o-ring. Congratulations! You're done. 

 

 

 


Shipping Notes
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  • Delivery to the USA:
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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: 63251966171

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4.1 ★★★★★
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TS
Birmingham, US
★★★★★ 1
Horrible quality
Size: 6.5x10ft, Color: Red
Horrible quality. The crank didn't work. The umbrella just flopped open. Once it did I cranked it, but it was cranking in wrong direction. Umbrella sat totally lopsided. The overall quality of this umbrella including the canopy is junk. Looks cheap. Returning!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Santosha
Lowell, US
★★★★★ 5
Peacock Blue
Size: 6.5x10ft, Color: Lake Blue
Not out yet because of weather, but it looks good, unusual point that some of the spokes according to the directions need to be put on yourself, but at least this way they not bent in box. Note when I bought it - it used the color Lake Blue but the picture was a Peacock Blue - I took the chance and it is a Peacock Blue- I would not call it Lake at all or sky or any of those colors. It worked out for me as it matches perfectly with my Peacock Blue cushions and other umbrellas, It defintiely seems like it is sturdy and the size looks as it should, it has a nice weight as i did open it in house to take a look, the material has a slight sheen which makes it appear a little different than my others, but not something most people would notice.
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Reviewed in the United States on April 9, 2026
C
Verified Purchase
Cathy H.
Grantham, US
★★★★★ 5
Perfect over a picnic table!
Size: 6.5x10ft, Color: Lake Blue
Great umbrella. We used it over a rectangular picnic table and the shape was perfect. Love the color too!
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Reviewed in the United States on April 24, 2026
M
Verified Purchase
M. Sheehy
Port Orchard, US
★★★★★ 4
Attractive and seems like it will hold up
Size: 6.5x10ft, Color: Blue-Green Stripe
Seems sturdy enough. Tilt button is difficult to retract to straight, but maybe just my finger strength, or it will loosen up with time. The color of one of the stripes is off from the photo. I was hoping it was turquoise as shown in picture, but is actually a much deeper blue. Doesn't coordinate with my other patio colors like I hoped it would, but it will do.
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Reviewed in the United States on April 8, 2026
C
Verified Purchase
ctrygirl
Carnegie, US
★★★★★ 5
Would recommend
Size: 6.5x10ft, Color: Dark Blue
Love the rectangular shape, it allows more coverage in areas that I need it. The tilt feature works well and is handy. Easy to put together and would recommend
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Reviewed in the United States on April 21, 2026

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