SKU: 85542464994

High Clearance Radiator Conversion (HCR) - 3.4L V6

$220.92 $245.47
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

High Clearance Radiator Conversion (HCR) - 3.4L V6Introducing the BEST cooling system upgrade for 96 02 4Runners & 95 04 Tacomas the complete, bolt on HCR kit from Opt Offroad! See below for lead times. THE PROBLEM: This kit addresses one of the biggest design flaws on our powertrain: the haphazard low hanging radiator It extends several inches down past the frame, sacrificing front end ground clearance and just waiting to get smacked. We've heard many stories from fellow owners that were left

Introducing the BEST cooling system upgrade for 96-02 4Runners & 95-04 Tacomas - the complete, bolt-on HCR kit from Opt Offroad! See below for lead times.

THE PROBLEM: This kit addresses one of the biggest design flaws on our powertrain: the haphazard low-hanging radiator... It extends several inches down past the frame, sacrificing front end ground clearance and just waiting to get smacked.

We've heard many stories from fellow owners that were left stranded, waiting for a tow after relatively minor accidents on the trails and highways... all preventable.  Whether an off-roader or not, and whether you have decent skids or not, it's simply not a risk worth taking.

THE SOLUTION: Opt Offroad's HCR kit replaces that vulnerable stock radiator with your choice of a Premium OE Replacement or High Performance unit that mounts above your frame rails, where it should have been from the start! All kit options are a complete bolt-on replacement and easy install process. They also all come from manufacturers with a proven track record and warranties to back it.

Both radiator options are equipped with auto trans coolers. Both have the same factory inlet/outlet layout, aside from the lower hose fitting being a few inches higher. The included custom lower hose accommodates this change though.

Note- the hose included in this kit is spec’d for 3.4L V6 trucks, but the HCR kit will also work for 2.7L 3RZFE trucks too! If you have a 2.7L, you will simply need to source a factory lower hose for a manual transmission 2.7L truck.

Want a complete high clearance skid plate and radiator solution? TAP HERE

PREMIUM OE PACKAGE: $195; lead time IN STOCK.

With an aluminum core and plastic housing, the CSF unit is the best balance between performance and budget. This is a great option for anyone that is satisfied with their current cooling performance and simply wants a high clearance, premium replacement. CSF's reputation is exceptional, and we know many people who have been running their radiators for 10+ years with nothing but good feedback.

  • (2) Stainless Steel Hose Clamps (Worm Gear)
  • (1) Custom Lower Radiator Hose (Pre-Formed)
  • (1) CSF Premium OE Replacement Radiator:
    • Precision Molded Plastic Housing w/ Aluminum 1 Row Core
    • Factory Bolt-On Design, with Trans Cooler Fittings
    • 23 7/8" H X 28 1/8" W, Rated for Factory Power
    • Cap included, we'll ship with hose & clamps

HIGH PERFORMANCE PACKAGE: $305; lead time IN STOCK.

With a full aluminum construction and deeper body, this Champion unit dramatically improves your cooling performance due to increased fluid capacity and heat dissipation efficiency. And with a rating up to 550 horsepower, it can handle anything our 5VZ pigs can throw at it!

  • (2) Stainless Steel Hose Clamps (Worm Gear)
  • (1) Custom Lower Radiator Hose (Pre-Formed)
  • (1) Champion Cooling Systems High Performance Radiator:
    • TIG Welded 2mm Thick Aircraft Aluminum, 3 Row Core
    • Factory Bolt-On Design, with Trans Cooler Fittings
    • 23 1/2" H X 28 1/8" W, Rated Up To 550 HP
    • 14-16 Fins per Inch, 3/8" Tube Spacing
    • Billet Fill Neck w/ 16lb Cap Included

INSTALL HELP: Watch this YouTube video for tips: TAP HERE

IMPORTANT NOTES:

Coolant-

  • OE Replacement: CSF recommends following factory specifications.
  • High Performance: Champion recommends Ethylene-based yellow/green coolant & distilled water only, to prevent premature wear on your radiator. Peak 10X is a great choice, as it is formulated to work with all vehicles and cooling systems, and has been thoroughly tested to work with these all-aluminum radiators. Using other coolant types can potentially affect your warranty with Champion. While "Asian Red" and "Toyota Pink" coolants are Ethylene-based, they have been known to cause issues with the full aluminum housings, and are discouraged for this setup.

Fan Shroud- Your factory shroud is reusable for this kit! However, there will be excess length at the bottom which can be easily trimmed off with a razor blade to match the height of the new radiator. We are currently working on a plug and play shroud.

Maintenance- Overheating issues can be caused by a number of factors (dirty fluid, broken water pump, fan clutch, thermostat...) so don't expect a nice new radiator to fix your problem if something else is neglected. We are not responsible for overheating issues on your truck. Your cooling system is just that, a system. So treat it as such and maintain it!

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: 85542464994

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4.3 ★★★★★
Based on 18 reviews
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Product Reviews
L
Verified Purchase
Lemons Limes
Charlottesville, US
★★★★★ 5
The easiest and best tooth brush!
Color: Pink (2-pack)
Ive tried several other dog tooth brushes for my 74 lbs Coonhound. This style and brand is the only one that is easy and works for us. It's easy to move your finger around and all sides of it have the cleaning nodules so no matter which way your finger turns, they are always touching her teeth. I like to try to open her mouth and get the inside of the mouth too. I loop my finger around her fangs. It is soft without harder parts so it doesn't make her pull away. This brush is perfect. It's a good quality and comes with a container for storage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
M
Verified Purchase
Mark
Massapequa, US
★★★★★ 5
Total GAME CHANGER - incredibly effective toothbrush for dogs
Color: Clear (2-pack)
This silicon finger brush is incredibly easy to use - and so EFFECTIVE (more on that in the last paragraph this review). At first, it seemed a little hard to get on my finger but I simply got my finger wet first under the faucet and it slipped right on with virtually no effort. And once on, it's easy to take off but doesn't slip off accidentally when in use - so - perfect! Quick & simply to clean - rinses off in the sink in seconds, and ready to use the next time. And, my dog not only lets me clean her teeth - she actually like it (this from a dog who used to hate it when I would try to brush her teeth with a regular doggy toothbrush). This silicon "brush" is incredibly maneuverable - way more so than standard dog toothbrushes or regular finger brushes. So much so it makes it super easy to not only get those normally impossible to reach back molars - AND - even the back sides of the teeth! With a normal dog tooth brush (or finger brush) my dog's clamping down made that impossible. Now, it's not only possible - it's easy! Our dog's canine teeth had build-up but it was not until I pulled her gums back and looked at her back molars that I saw how bad things had gotten - and we have a young dog! Her back molars not only had build-up but some appeared to be stained a tea colored brown that did not come off with my fingernail. It was pretty disheartening and I felt terrible. How could this happen so quickly? The vet said it was plaque (and not yet tartar) and that it wasn't bad enough to warrant a professional cleaning - yet - but that I needed to do a better job brushing. He said: "I can see exactly where your brushing stops" (referring to the condition on the back molars which I had not been able to do with a regular brush as my dog just wasn't having it). Tips: here's what's working for us. Instead of squeezing out a pea sized blog of tooth paste onto this brush, I put a tiny dab - that it's - on the very tip of the brush and focus my efforts on two of our dog's worst teeth on one side - on top and then on the bottom. Then I put another small dab and repeat on the other side of her mouth with 4 teeth on that side. Then, I use another small dab and focus work on another group of teeth. All totaled, I'm using maybe 4 to 6 very small dabs of dog toothpaste, probably half the size of pea collectively, perhaps less. That's it. However much you choose to use is up to you - be sure and use an amount that's safe and effective for your dog. Effectiveness: this works and it works well! In just 3 days using the same vanilla flavored enzymatic toothpaste by CET I was seeing improvement. By day 7, that improvement was so obvious I was actually surprised by how much better they looked. It's now been a little over two weeks and they are looking considerably better! Conservatively, I'm thinking a 50% improvement. Not bad for just 2 weeks, right? I'm actually think I'm going to be able to completely reverse things - we'll see. I'll try and update this review again in a few weeks and let you know how it's looking but in the meantime, I am absolutely thrilled with this brush. I paid $16 and it came 2 in a pack) and the first (and only one) I've been using still looks brand new after it's rinsed off. All in all - this brush is a game changer! I can now brush our dogs back teeth and even the back sides of her teeth, all in less than a couple minutes a day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 23, 2020
J
Verified Purchase
JONNA S. Delp
Battle Creek, US
★★★★★ 3
Plastic not a brush
Color: Clear (4-pack)
Love the idea, dont care for the texture. It would be nice if they were soft brush and not plastic. Would retuen but i missed the window.
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Reviewed in the United States on May 22, 2026
B
Verified Purchase
Belle7RN
Birmingham, US
★★★★★ 5
Better than a toothbrush!
Color: Blue (2-pack)
Perfect for brushing my doggies teeth! Easy to use and my dogs like it better than a toothbrush.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
M
Verified Purchase
Mica
Boise, US
★★★★★ 5
Great dog toothbrush!
Color: Blue (2-pack)
I’ve been using this product for a year now, and it’s been working great. When paired with vanilla mint enzymatic toothpaste, it effectively cleans my Pomsky’s teeth, including the back teeth. As a result, my fur baby’s teeth remain as white as ever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026

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