

🚗 Upgrade your engine’s heartbeat with AISIN’s all-in-one timing belt kit!
The AISIN TKT-021 Engine Timing Belt Kit with Water Pump is a premium, OE-matched service kit designed for select Lexus and Toyota models. It combines a precision timing belt, a durable water pump with carbon ceramic seals, tensioner, pulleys, gaskets, and installation instructions in one convenient package. Engineered by AISIN—the world’s #1 OE water pump manufacturer—this kit ensures superior durability, optimal engine timing, and cost-effective maintenance by replacing all critical components simultaneously.













| ASIN | B008EEYWKI |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #8,429 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Timing Belt Kits |
| Brand | AISIN |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,792) |
| Date First Available | April 23, 2012 |
| Exterior | Machined |
| Global Trade Identification Number | 04954514999724 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.48 pounds |
| Item model number | TKT-021 |
| Manufacturer | Aisin |
| Manufacturer Part Number | TKT-021 |
| Material | Aluminum, Ceramic |
| Model | TKT-021 |
| OEM Part Number | TKT 021, TKT021 |
| Position | Center |
| Vehicle Service Type | Car, Truck |
| Weight Class | Heavy Weight |
S**I
GREAT BUT 👍
I have been a shade tree mechanic since 14 years old, at 67 years old Toyota wanted $1600 to change out my timing belt and all these components. So I bought this and did it myself and saved a lot of money, thanks to these parts and YouTube !!!!!
P**L
Great kit!
Awesome and complete kit! Direct fit for my 2004 Sequoia, just make sure you get gasket maker for the water pump as that's no included.
A**R
Fit my 2001 Toyota Sequoia, legit part
I installed this Aisin timing belt kit since December 2023 ( two years ago) and no issues on my 2001 Toyota Sequoia. This product is a legit Aisin with the halogram sticker.
J**N
Better than expected.
Better than i expected. this is a dealers part for 8th of the price
S**.
Good OEM Parts !!
Fit my 2004 Toyota Tundra Double cab perfect. Aisin is OEM and stands the test of time ,Japanese -American made stuff. my old timing belt had 132,000 miles on it and was not yet showing signs of failure.
B**G
No timing belt sticker as described
Excellent kit. It's what OEM use. Only problem was that it didn't have the Aisin Timing Belt Sticker as it claimed in the description. It had everything else. I looked all over that box for the sticker.
S**T
Best value for Toyota OEM parts, period.
Hands down, the best timing belt/water pump kit you can buy for your Toyota/Lexus V8 engine. I have a 2006 4Runner with the 2UZ-FE engine and it's getting ready to roll over 200,000 miles. At 100K miles, I took it to the dealer (I know, don't shoot me) and they charged me a tidy $1,400 to change the timing belt and water pump. For 170 bucks and a day's worth of my (or your) time, this kit will save a lot of money. I'm one of those guys that like to use Toyota OEM parts, but not pay Toyota dealer prices. I checked quite a few online stores that sold Toyota OEM parts, and purchased separately, the best price I could get for everything included in this kit was about $400. This is a great--I mean fantastic--price for everything that you need to perform this service. Both bearings are Koyo branded (the same used by Toyota), the water pump is Aisin (same used by Toyota), the hydraulic tensioner is NTN (same used by Toyota) and the timing belt is Mitsuboshi....you guessed it, same as used by Toyota. Everything you see in the picture is included EXCEPT for the square gasket that fits to the top of the water pump. Honestly, I didn't even know this gasket existed since the Toyota manual calls for using FIPG (Form In Place Gasket) for this seal. FIPG is essentially the squeeze type gasket stuff out of a tube. You can get it on Amazon Genuine Toyota Fluid 00295-00103 Formed-in-Place Oil Pan Gasket - 3 oz. Tube This kit even includes a very nice booklet with directions on how to perform the timing belt replacement. But, I'm guessing if you're buying this kit, you're either giving it to your local mechanic or you're doing it yourself and you've already spent lots of time on the web researching how to do it. Or you're a cracker jack mechanic and you can do it with your eyes closed, with one arm tied behind your back. I haven't used my kit yet, but I know a lot of people looking at this are very curious to know what exactly is included in the kit so I wanted to make sure I at least let everyone know what was in mine. I've included pictures as well for your viewing pleasure. When I do perform this service, I'll post a follow up review and let you know how things go. UPDATE: Sept 2022. Procrastinate much? I just installed this kit 7 years after purchase. The only negative comment I have is the tensioner didn’t fit as well as the original on the vehicle. When tightened down, it was binding and not allowing the tensioner to freely move. Easy fix, I just took the pulley off the new tensioner and placed it on the old one. I would definitely but this kit again. For what it’s worth, my timing belt had 200k miles on it when I replaced it and it literally looked just as good as the new one I installed. That Mitsuboshi is one heckuva good timing belt!
B**B
Factory parts for toyota
Aisin is factory original for toyota engines It's the only one I use and I've never had any issues with aisin timing belt kits. I won't use anything else
A**R
Everything necessary fof timing belt and water pump change. The only thing to remember is that you should also buy a new replacement serpentine belt for the alternator, if you wsng to do a proper job.
E**O
This Aisin package represents unbelievably great value. These are the very same items sold individually by Toyota dealers, ( in repackaged red and white Toyota livery ) I purchased these very same items from a Toyota dealer, here in Australia eleven years ago for over $600.00 Add free postage from the U.S.A. and this represents fantastic value, unmatched anywhere here in Oz.
M**T
Yes this is indeed genuine Toyota components. Just didn't have the Toyota's dealer markup cost. Installed over 20k km ago. Kit was excellent fitment. As to be expected. Good instructions. Installed it myself. It's a weekend long project to do this job yourself. My brother assisted and we knocked it out of the park. Kit dues not include everything you'll need to do this service, you'll need some sealants not included. No fault there just a warning that you need to research before doing this job. Toyota designated specific RTV Silicone engine sealants will also need to be acquired to do this service job. That said, everything in this kit is Toyota quality and fit and finish is "as factory". 4.7l V8 VVTI 2005 Toyota 4Runner I'll be ordering this again when it's due for the next service. My brother has done about ten of these now on various Toyota's and those is there kit her recommended me to purchase. 🤘👍❤️👌
R**V
Fit the Toyota tundra 2007 perfectly. Very nice kit Asian is also majority owned by Toyota so you are getting oem product. Skip the dealer if you need this kit.
J**T
Quality items in the kit, made in Japan and not China so it fit like OEM. Almost twice the cost of the knock off Chinese ones but worth it IMO, sometimes it better to pay more and have to do it once.
Trustpilot
3 weeks ago
2 weeks ago