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Sumitomo High Performance HTR Z II Tire - 245/40-18 (79-04 All)

18 Reviews
Our Price


  • Item #63029
  • MPN# 5518078

  • Market Price $119.99
  • You Save 17% ($20.00)
  • Add FREE Mounting and Balancing?

Total Price with Options:
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Product Videos Customer Photos
  • Uncompromising Traction and Handling
  • Excellent Anti-Hydroplaning Characteristics
  • Smooth Ride; Minimal Road Noise
  • Unique Flanged Lip Protects Rims
Sumitomo's HTR Z II series tire is an ultra high performance summer tire. The aggressively designed 245/40-18 delivers extraordinary performance in either wet or dry conditions, on and off the track.

Uncompromising traction and handling. The HTR ZII's extra wide, arched tread blocks deliver uncompromising racing slick-like dry traction and handling. Dual steel belts with spirally-wrapped Jointless Nylon Band reinforcements deliver high-speed stamina and predictable handling, while still minimizing weight and right uniformity. Single Strand Beads help improve wheel fit and retain rigidity under high stress cornering.

Excellent anti-hydroplaning characteristics. Multi Directional Water Channels push water to the sides and away from the center providing excellent hydroplaning resistance and road grip in adverse weather conditions.

Smooth ride; minimal road noise. In addition to outstanding performance, the HTR Z II Series Tires deliver a smooth ride with minimal road noise. That way you and your passengers can be treated to the sounds that really count, like the growl of your motor, the whine of your supercharger, or the bass thumping from your Mach 1000 stereo system!

Unique flanged lip protects rims. The HTR Z II Series Tires also feature a unique flanged lip on the lower sidewall that helps protect your expensive rims from curb damage while parallel parking.

5 Year Warranty. This Sumitomo Tire comes with a 5-year warranty from the date of purchase. Some limitations do apply. Please see the Full Sumitomo Warranty disclosure for details.

Best Fit: 18 x 9 Inch 1994-2004 Wheels

  • Wide block shoulder stabilizers strengthen shoulders for maximum dry grip and greater, more predictable, steering response for cornering control.
  • Full-width, high density steel belts promote stable, predictable handling, smooth ride, even tread wear, and superb uniformity .
  • PSP Technology optimizes overall casing durability throughout the life of the tire

NOTE: These are ultra high performance summer specific compound and tread tires. Use during the summer and warm temperature months will result in superior traction over "all season" tires. Use during the winter months/cold temperatures significantly reduces traction and increases stopping distance as the compound becomes less sticky.

Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

Free Mounting & Balancing: Professional mounting & balancing is available on all wheels and tires when purchased together on the same order, so you can just swap your wheels in your driveway when they arrive. We even offer Free Nitrogen tire fill (see option above).

  • FREE Mounting and Balancing in 48 hours
  • State of the Art Onsite Tire Facility
  • Scratch-Free process + Hidden Weights
  • TPMS Sensors installed free on 07+ Mustangs (see wheel page for details)
  • Free Shipping on any order to the continental 48 states
  • Please allow an extra 1 to 2 business days on your wheel and tire package for mounting and balancing

Free Nitrogen Fill! AmericanMuscle is proud to bring you the option to fill your tires with pure nitrogen for FREE when we mount & balance your wheel and tire order. Filling your high performance tires with nitrogen has many benefits including:

  • Improves Fuel Economy
  • Cuts down weight
  • Preserves your tires for longer life
  • Tire Pressure is better equalized throughout the year
What's in the Box
  • (1) Tire
Tech Specs
  • Hydroplaning Resistance: 8.0
  • Wet Traction: 8.0
  • Dry Traction: 9.0
  • Snow Traction: N/A
  • Ice Traction: N/A
  • Steering Response: 8.6
  • Cornering Stability: 8.6
  • Ride: 8.2
  • Noise: 8.1
  • Tread Wear: 7.4

KEY: 10-8.6 Oh Yeah!, 8.5-6.6 Above Average, 6.5-4.6 Average, 4.5-2.6 Acceptable, 2.5-0 Unacceptable
Will it fit my Mustang?
  • Bullitt - 01
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

Most Helpful Reviews

got some new rubbers

Just got these tires. First off shipping took only 3 days (excluding weekend) which was awesome. Second these tires are so sick. Very grippy in warm-dry conditions, and not to bad in the water. The thing ...

Read More
Helpful (2)

Awesome tires!

This is the second set of these tires that I got for my 2002 GT . For the price, you cannot beat these tires...they ride great and hook up great . I am very satisfied with the tires.

Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 18 Reviews

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3 Questions / 3 Answers

Ask a Question

Im getting 285 35 18 for the back with 1 inch spacers, will 245 40 18s look right in the front? Or should I get a bit bigger?


  • Depending on the look you are looking for, the answers will slightly vary. The 245/40 will give it that nice staggered look with the 285/35's, however, the spacer in the rear will have the tires in the rear stick outward, while the front wheel will still be inward. If you have any questions or concerns regarding a specific set-up/look, please feel free to give us a call at your earliest convenience.


    Good Answer (0) (0)

Question Resolved

What are the proper rims I have a set of 2013 mustang stock rims 18 x 8 144mm offset will these work on my 1999 mustang v6


  • These tires will mount to the 18x8 wheels with no problem, but you may run into some rubbing issues trying to mount them on your 1999 V6 Mustang.


    Good Answer (0) (0)

Question Resolved

I have 18x8 rims on my 2011 V6 Mustang. Will these tires fit or will there be clearance issues? I know it says fitment for 79-04, but I also see other tires that are the same size (245/40-18) for the 05-14 Stangs.


  • The Sumitomo High Performance HTR Z II Tire - 245/40-18 (79-04 All) will be able to fit on an 18x8 wheel without stretching the tire.


    Good Answer (0) (0)

Question Resolved

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Customer Reviews (18) Write a Review

Overall Rating 4.7

out of 5 stars

  • Dry Traction 4.705883 4.7
  • Wet Traction 4 4
  • Tread Apperance 4.764706 4.8
  • Ride Quality 4.705883 4.7
  • Bang For Your Buck 4.588235 4.6

  • 5/5

    May 16, 2011

    got some new rubbers

    Just got these tires. First off shipping took only 3 days (excluding weekend) which was awesome. Second these tires are so sick. Very grippy in warm-dry conditions, and not to bad in the water. The thing is the more torque you have the harder it's going to be to stay planted in the wet.. so I wasn't expecting miracles, but overall I'd say they are WELLLLLLL worth the price.


    Year: 1997 Submodel: Other

    Helpful (2) (0)

  • 5/5

    September 25, 2015


    I have a 630 rwhp 03 cobra and these tires are awesome.


    Year: 2003 Submodel: Cobra Bridgeport, NY

    Helpful (1) (0)

  • 5/5

    September 21, 2015

    Great tire for the summer

    I ordered these tires as a part of a wheel and tire kit. I also opted for the free nitrogen fill and mounting and balancing before shipment. I installed them early spring and they have been excellent tired so far. The only negative is they are not as great with wet traction, however I don't find this a problem as most of us mustang owners aren't driving in the rain. Plenty of grip on a dry day and delivers a smooth ride.


    Year: 2002 Submodel: GT Pittsburgh

    Helpful (1) (0)

  • 5/5

    September 18, 2015

    Great Tire!

    Great Tire for the price! Really nice Thread pattern! Am didn't send me the rim and tire balanced/mounted. One quick call and they were able to help me out. Will purchase again.


    Year: 2004 Submodel: Mach 1 San Antonio

    Helpful (1) (0)

  • 5/5

    December 24, 2014

    Love them!!

    They look sick staggered!!! My car rides much better now.


    Year: 2003 Submodel: GT Fort Worth, TX, USA

    Helpful (1) (0)

  • 4/5

    March 26, 2013

    Great for the price

    Perfect tire for the average consumer/ driver. These tires are great for dry non-racing weather. Traction grips for the most part and looks great at the same time. However do not try to launch with any kind of wetness because you'll be left spinning at the stop line! Overall great tire, and as always super fast shipping! Thanks AM


    Year: 2001 Submodel: V6

    Helpful (1) (0)

  • 4/5

    March 22, 2013

    Great tire Great price

    title says it all. these tires look great run great and dont hurt your pocket while doing all those things.


    Year: 2003 Submodel: GT Youngsville, NC 27596, USA

    Helpful (1) (0)

  • 5/5

    May 01, 2012

    Awesome tires!

    This is the second set of these tires that I got for my 2002 GT . For the price, you cannot beat these tires...they ride great and hook up great . I am very satisfied with the tires.


    Year: 2002 Submodel: GT Pittsburgh, PA, USA

    Helpful (1) (0)

  • 5/5

    September 19, 2015

    Best Purchase "EVER"

    My recent Sumitomo Tire purchase is by far the "BEST" investment I've made to date in improving my 2000 Mustang GT performance of anything I've purchased for car enhancements. The tires exceeded my expectation through appearance, profile, tread design, sure handling and above all grip. Anyone looking for a quality tire product should DEFINITELY Sumitomo.


    Year: 2000 Submodel: GT Monroe,Michigan

    Helpful (0) (1)

  • 3/5

    August 02, 2012


    I love these tires! they look good, ride good, feel good. The only part i don't like is the traction, when its dry its not so bad just mainly when its wet slide with any acceleration.


    Year: 2000 Submodel: V6 Fort Myers, FL

    Helpful (0) (1)

  • 5/5

    July 07, 2016

    Sweet Tire

    These are some great tires. They grip the road and keep my turns on point. Would seriously suggest to every Mustang owner.


    Year: 2004 Submodel: GT

    Helpful (0) (1)

  • 5/5

    October 18, 2016


    Pretty dope tires .. it has great grip when I'm hitting corners wen racing recall chevy.


    Year: 2001 Submodel: GT

    Helpful (0) (0)

  • 5/5

    June 01, 2016

    Good price, great ride

    Got these tires at a good price and compared to my old set, these are great. A bit loud upon wheel spin but it is what it is. Thanks.


    Year: 2002 Submodel: GT

    Helpful (0) (0)

  • 5/5

    April 05, 2016

    Sumitomo HTRZ2

    Great tire! Aggressive tread pattern, runs quiet, very happy with my purchase from American Muscle!


    Year: 2004 Submodel: Mach 1

    Helpful (0) (0)

  • 5/5

    December 22, 2012

    Pretty good tire

    Good tire for the money can't bet it for that they also look good I have the on the front of my 2004 mach 1


    Year: 2004 Submodel: Mach 1 Decherd, TN, USA

    Helpful (0) (0)

  • 4/5

    December 22, 2012

    Good Porduct

    Tires look great. have decent dry traction, wet not soooo much


    Year: 2002 Submodel: GT Boston

    Helpful (0) (0)

  • 4/5

    July 29, 2012

    Great looking tire. Great price!

    This tire is an excellent choice for great looks and good performance for a reasonable price. They have a good ride and offer a good feel of the road.


    Year: 2001 Submodel: GT

    Helpful (0) (0)

  • 5/5

    December 07, 2011

    great tires for a great price

    I really like these tires. These were on my car when i bought it and I like the way they handle in all kinds of weather conditions. the traction is great whether its street or racing(of course drag radials will be better but for a street tire they are pretty sticky when warm). i got 25-28xxx before having to replace them. the tread looks aggressive and are overall the best tire for the price. And of course A.M. has great service and ships super fast.


    Year: 2002 Submodel: GT ga

    Helpful (0) (0)

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