

⚡ Tune up your Jeep, tune into power — don’t get left idling behind!
The ACCEL TST16 Truck Super Tune Up Kit is a high-performance ignition upgrade designed specifically for 1994-1999 Jeep 4.0L inline 6 engines. Featuring copper core spark plugs, heat reflective boots, and stainless steel springs, it maximizes engine efficiency, durability, and reduces emissions. This easy-to-install kit offers a cost-effective alternative to expensive shop tune-ups, backed by a limited one-year warranty.
| ASIN | B000QJNA7A |
| Best Sellers Rank | #486,958 in Automotive ( See Top 100 in Automotive ) #116 in Automotive Replacement Ignition Tune-Up Kits |
| Brand | ACCEL |
| Cable Type | HDMI |
| Color | Red |
| Compatible Devices | 1994-1999 Jeeps with the 4.0L inline 6 cylinder and H.O. Fuel Injection |
| Connector Gender | Male-to-Female |
| Connector Type | BNC |
| Customer Package Type | Flat Free Package (FFP) |
| Customer Reviews | 4.4 4.4 out of 5 stars (492) |
| Date First Available | September 14, 2004 |
| Exterior | Machined |
| Global Trade Identification Number | 00743047800782 |
| Indoor/Outdoor Usage | Outdoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3 pounds |
| Item model number | TST16 |
| Manufacturer | ACCEL |
| Manufacturer Part Number | TST16 |
| Maximum Voltage | 14 Volts (DC) |
| Model Name | TST16 |
| Number of Items | 1 |
| Number of Pins | 12 |
| OEM Part Number | TST16 |
| Recommended Uses For Product | Super tuning up Jeep 4.0L engines (1994-1999 Jeeps with the 4.0L inline 6 cylinder and H.O. Fuel Injection) |
| Shape | Round |
| Special Feature | High Performance Tuning Kit |
| Special Features | High Performance Tuning Kit |
| Specification Met | Certified Frustration-free |
| UPC | 743047800782 |
| Unit Count | 6.0 Count |
M**R
Great value, despite rotor not fitting my Jeep.
Bought and installed this kit on my 94 YJ Sahara 4.0 I6. Was impressed with the quality of the plugs, wires and distributor cap. However the rotor that came in this package did not have a back end that secured itself into its place. Not sure if it would've still worked or not but I decided to play it safe and got an AC Delco rotor at Autozone for $9 bucks. Everything went smooth with the tuneup and I recommend. Just be aware the rotor included in this kit may not fit your Jeep. Another word to the wise, pick up some dielectric grease and place a little glob in the openings of all the wires when placing them in. All that being said, this product still receives a 5 star rating from me. As a Prime member, I received this in 24 hours despite the two day shipping. After being quoted $650 dollars for a tuneup at my local shop, I decided to take matters into my own hands. A tuneup can seem daunting but it is very easy, and this is coming from a guy who doesn't turn wrenches at all. There are tons of youtube videos out there to help you along. Good luck with the kit!
D**O
Nice wires! Decent plugs, cap and rotor
1996 Cherokee Country 4.0L. The spark plug wires were worth the price of the whole kit. They are thick, wound and good silicone covering. Plugs were not U grooves, they were standard, but decent quality, came with all 6 and all gapped perfectly to 0.035 (of course I couldn't find any of my millions of gappers I have bought over the years and needed to go buy a new one to find this out). Cap and rotor were pretty standard, and mine fit the distributor fine, unlike others have mentioned about the rotor. Fired right up. I didn't notice any change in idle or performance as other have noted, but the old stuff was definitely worn so it was time. No complaints, good kit. Take your time changing them and careful not to put them back in the wrong order.
C**G
97 Jeep TJ 4.0 RUNS GREAT!
I say this a must do mod for anyone looking to tune up their 4.0 Jeep. I hadn't done a cap and rotor job in 15 years and this went very smoothly. Couldn't have gone any easier. I gapped all the plugs to .035 and replaced the entire cap, rotor, wires and plugs. Time spent- 1 hour. Jeep idles VERY smooth and power delivery is much smoother as well. I am sure my gas mileage will be up a bit as well. My old cap and rotor were chewed up! Credit to the Jeep 4.0L for still running like the beast that it is but those contact points were corroded and nasty! The Accel kit oozes quality. The wires are thick and well made, the cap and rotor have all brass contact points unlike the stuff that was on it which had steel contact points. The spark plugs were alot nicer than the Champions I had in it as well. Most Jeep heads would tell you to only run Champions as per manufacturer but these Accel plugs are running great in mine so Your Mileage May Vary. As for me I give this tune up kit the big thumbs up! 1997 Sahara Jeep 4.0 manual 4" frankenstein Lift kit running 33" BFG A/T's with Adjustable rear track bar and sway bar disco's DynoMax Exhaust 180 degree thermostat Wix Air Filter Royal Purple 10W30 Optima Yellow Top 3.55's in Dana 44 Rear with Posi When i bought her she got 12 MPG. After a year of cleaning her up now getting 20 MPG highway... The work continues..
D**N
Huge increase in performance.
Bought this kit for my 98 Jeep tj. Don’t know when the last time this jeep was tuned up. The plugs I took out were gapped at 60 when they should’ve been at 35. Install the new plugs, wires and cap. Everything was a perfect fit. My only disappointment with the kit was, I didn’t receive the red wires Got black ones. Very very minor complaint.
L**N
As advertised
As advertised
P**A
The wires are nice quality and look great
The wires are nice quality and look great, I did not use the supplied wire looms, I used the factory originals. The rotor and cap fit perfectly. The plugs on the other hand are shorter reach then the original Champions. Runs fine but doesn't seem to start as quick. I am replacing these brand new short Accel plugs with the factory recommended Champions. As I mentioned It seems to run OK, but there is a big difference in the reach of these plugs compared to the Champions.
W**L
Great Deal
Tune up kit was good way to go, quick and easy. Chasing a starting issue, so have driven to much, but it did smooth out the acceleration and idle. Great parts from an even greater company.
I**D
Accel 0736 plugs are incorrect for 1998 Jeep 4.0L 6 cylinder
I don't really hate this kit, it appears to be typical Accel quality, however, after receiving the item and starting to do the swap, I found that the spark plugs are incorrect for my vehicle. I suggest that you make sure of the required spark plug for your car. it should be listed on the firewall, mine indicates Champion RC12LYC. These plugs have an extended electrode and tip, and the Accel 0736 plugs do not. Using a cross reference chart converts the Champion plug to Accel114. I asked Amazon to investigate this error.
A**A
mala calidad, la resistencia ohms varia demasiado horrible hizo que mi motor fallara, el rotor se movia todo no estaba bien anclado, la verdad cambie todo de nuevo mesientro defraudado ya que pague mas de $2,000 pesos por algo que estaba descomponiendo mi camioneta NO LO RECOMIENDO
K**E
Great product at a competative price to my local auto parts store
A**Y
I opened the rotor box today and the rotor has no metal contacts. It simply will not work.
Trustpilot
1 week ago
1 month ago