Sumitomo Rubber Supplies Dunlop Tires for Lexus LX SUVs

Sumitomo Rubber Begins Supplying Dunlop Tires for the Lexus LX

On October 28, Sumitomo Rubber Industries, Ltd. announced that it had begun supplying DUNLOP GRANDTREK H/T31 and GRANDTREK H/T31T tires as original equipment (OE) for the Lexus LX following the SUV's partial update in October. The two tire models are assigned to different LX grades, reflecting their distinct performance characteristics. The H/T31 is fitted on the standard LX700h and LX600 models, as well as the EXECUTIVE and F SPORT grades. The H/T31T is fitted on the OVERTRAIL+ grade. This OE supply arrangement brings Sumitomo Rubber's Dunlop SUV tires to the updated Lexus lineup, with each tire selected for its intended vehicle application.

DUNLOP GRANDTREK H/T31 Balances Comfort and Efficiency

The DUNLOP GRANDTREK H/T31 features a highway-terrain (H/T) tread pattern and a newly developed tread compound. According to Sumitomo Rubber, these characteristics are designed to balance quietness, fuel efficiency, and wear resistance. The tire is fitted on the standard Lexus LX700h and LX600 models and the EXECUTIVE and F SPORT grades. Its stated design priorities address several considerations relevant to SUV use, including cabin noise, fuel consumption, and tire durability. The announcement does not provide numerical performance improvements or comparative test results, so the benefits should be understood as the intended characteristics of the tire rather than quantified gains over a previous product.

DUNLOP GRANDTREK H/T31T Targets the OVERTRAIL+ Grade

The DUNLOP GRANDTREK H/T31T is supplied for the Lexus LX OVERTRAIL+ grade and is designed to enhance on-road performance while retaining the rigidity needed to support the LX's heavy body. Sumitomo Rubber also identifies ride comfort as a key consideration in the tire's design. These characteristics reflect the need to balance vehicle support, road behavior, and comfort in a large SUV. The announcement distinguishes the H/T31T from the H/T31 by its focus on on-road performance and structural rigidity. It does not disclose detailed construction specifications, dimensions, performance measurements, or comparative test data for either tire.

Original Equipment Tire Applications Across Lexus LX Grades

The October announcement establishes two distinct original equipment fitments across the updated Lexus LX range. The H/T31 serves the standard LX700h and LX600 models, along with the EXECUTIVE and F SPORT grades, while the H/T31T is assigned to the OVERTRAIL+ grade. The following table summarizes the applications and the design characteristics described by Sumitomo Rubber. The source announcement does not specify tire sizes, pricing, production volumes, or the geographic availability of every configuration, so those details cannot be confirmed from the available information.

Lexus LX Tire Fitment and Design Characteristics

Sumitomo Rubber's Role in Lexus Original Equipment Supply

By supplying both tire models as original equipment for the updated Lexus LX, Sumitomo Rubber Industries is providing application-specific tires for multiple grades of the SUV. The arrangement uses the H/T31 for the standard LX700h and LX600 models and the EXECUTIVE and F SPORT grades, while the H/T31T is designated for the OVERTRAIL+ grade. The announcement highlights the importance of matching tire characteristics to a vehicle's intended configuration, including considerations such as noise, efficiency, durability, on-road performance, rigidity, and comfort. It does not disclose commercial terms, supply volumes, or the duration of the original equipment agreement.

Industry Impact & Outlook

The original equipment fitment strengthens Sumitomo Rubber's presence in the premium SUV segment by placing its Dunlop GRANDTREK tires on the updated Lexus LX lineup. The use of two tire models across different grades illustrates how tire suppliers tailor product characteristics to vehicle configuration and intended driving requirements. For Lexus, the specified fitments provide differentiated tire applications within the same model range, while Sumitomo Rubber gains an association with a premium vehicle program. The announcement does not establish sales projections, market-share changes, or future supply commitments. Further developments would depend on subsequent product announcements or disclosures concerning the Lexus LX and Sumitomo Rubber's original equipment business.

Frequently Asked Questions

Which Dunlop tires are being supplied for the updated Lexus LX?
Sumitomo Rubber Industries is supplying the DUNLOP GRANDTREK H/T31 and GRANDTREK H/T31T as original equipment for the Lexus LX following its October partial update. The two tires serve different vehicle grades rather than being identified as interchangeable options across the entire lineup. The H/T31 is assigned to the standard LX700h and LX600 models, as well as the EXECUTIVE and F SPORT grades. The H/T31T is designated for the OVERTRAIL+ grade. The announcement does not specify tire prices, dimensions, or availability across individual markets.

Which Lexus LX grades use the GRANDTREK H/T31?
The DUNLOP GRANDTREK H/T31 is fitted on the standard Lexus LX700h and LX600 models, along with the EXECUTIVE and F SPORT grades. Sumitomo Rubber describes this tire as having a highway-terrain tread pattern and a new tread compound designed to balance quietness, fuel efficiency, and wear resistance. These are the stated design objectives rather than quantified performance results. The announcement does not provide comparative test figures or detailed tire specifications for the listed LX configurations.

What distinguishes the GRANDTREK H/T31T from the H/T31?
The GRANDTREK H/T31T is specified for the Lexus LX OVERTRAIL+ grade and emphasizes enhanced on-road performance, structural rigidity, and ride comfort. Sumitomo Rubber says the tire combines the rigidity needed to support the LX's heavy body with comfort-oriented characteristics. By contrast, the H/T31 is described in terms of its highway-terrain tread pattern and new compound intended to balance quietness, fuel efficiency, and wear resistance. The announcement does not provide detailed comparative measurements, construction specifications, or test results establishing the magnitude of differences between the two models.

What benefits does the GRANDTREK H/T31 aim to provide?
The GRANDTREK H/T31 is designed to balance quietness, fuel efficiency, and wear resistance through its highway-terrain tread pattern and new tread compound. These characteristics address several priorities for SUV tires, including reducing road noise, supporting efficient operation, and maintaining durability during use. Sumitomo Rubber identifies these objectives in its announcement concerning the updated Lexus LX. However, the company does not disclose numerical fuel-efficiency improvements, noise measurements, tread-life estimates, or comparative performance data. The announcement therefore supports describing the intended design balance, but not assigning specific quantified gains to the tire.

Why is Sumitomo Rubber supplying different tires for Lexus LX grades?
Sumitomo Rubber's announcement identifies different tire applications for the updated Lexus LX grades, with the H/T31 assigned to several standard and premium configurations and the H/T31T reserved for the OVERTRAIL+ grade. The stated characteristics of the two models differ, with the H/T31 emphasizing quietness, fuel efficiency, and wear resistance, while the H/T31T focuses on on-road performance, rigidity, and ride comfort. This arrangement illustrates grade-specific original equipment selection. The company does not disclose the full engineering rationale behind Lexus's selection, so additional claims about the automaker's decision-making process would be unverified.