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Ironhead IAR220 275/70R22.5 J/18PLY

Commercial Truck - All Position
Commercial All Position

Rims Not Included

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7.8 Great

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Commercial Truck - All Position | Commercial All Position

5547845

The Ironhead IAR220 275/70R22.5 J/18PLY Tires is a Commercial Truck - All Position tire. Manufacturer part number: 5547845.

Ironhead IAR220 is an all-position radial truck tire made for regional and limited highway service applications. This tire is an excellent fit for intrastate & interstate buses, regional trucks, freight trucks, local buses, dump trucks, and transit vehicles. It features variable tread angles for better self-cleaning and stone ejection when driving on various roads in challenging driving conditions. Its micro-sipes within groove walls enhance the traction in all weather conditions, and four deep circumferential grooves help to effectively evacuate water away from the tire’s footprint and reduce the risk of hydroplaning. The reinforced sidewall is exceptionally strong and resistant to impact or curb damage, which helps to extend the life of the tire.

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About the Manufacturer:

Ironhead Tires, founded in 1952 in the USA, is a specialized brand known for its durable and value-driven commercial truck tires. Operating via the Hercules Tire global network in over 90 countries, Ironhead Tires is trusted for robust construction and reliable performance in demanding applications, offering longevity, superior load capacity, and cost-effectiveness for commercial trucks, buses, and trailers. Hercules Tire, manufacturer of Ironhead, is the Official Tire of the National Tractor Pullers Association (NTPA), showcasing the toughness aligned with Ironhead's ethos.

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Specifications

Specs

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Description

Load Index

148/145

The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.

Speed Rating

Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.

Load Range/Ply Rating

J/18PLY

Ply rating, more commonly referred to as load range, represents the strength and durability of the tire. Higher ratings may indicate your tires can handle heavier loads.

Max Single Load(lbs)

6940

The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.

Max Single Air Pressure(PSI)

130

The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.

Tread Depth

18.0

The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.

Tread Design

Nondirectional

The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).

Measured Rim Width

8.2

The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.

Section Width

10.8

The measurement from sidewall to sidewall.

Overall Diameter

37.7

The height of the tire when fully inflated.

Manufacturer Part Number

5547845

Manufacturer part number (sku)

Size Details

Size	Load Index/ Speed index	UTQG	Load Range/Ply Rating	Overall Diameter	Section Width	Rim Width Min	Rim Width Max	Rim Width Meas	Tread Depth (in)	Max Single Air Pressure (PSI)	Max Single Load (lbs)	Max Dual Air Pressure (PSI)	Max Dual Load (lbs)	MFG #
215/75R17.5	135/133L	-	H/16PLY	30.2	8.3	-	-	6.0	15.0	125	4805	125	4545	5547194
225/70R19.5	128/126L	-	G/14PLY	31.9	8.9	-	-	6.75	15.0	110	3970	110	3750	0210521
235/75R17.5	143/141J	-	J/18PLY	31.4	9.2	-	-	6.75	15.0	125	6005	125	5675	0210520
235/75R17.5	143/141L	-	J/18PLY	31.3	9.1	-	-	6.7	16.0	125	6005	125	5675	5547841
245/70R19.5	136/134M	-	H/16PLY	33.0	9.8	-	-	7.5	17.0	120	4940	120	4675	0210522
255/70R22.5	140/137M	-	H/16PLY	36.6	10.0	-	-	7.5	16.0	120	5510	120	5070	0210524
275/70R22.5	148/145M	-	H/16PLY	37.7	10.9	-	-	8.25	17.0	120	6510	120	5995	0210525
275/70R22.5	148/145M	-	J/18PLY	37.7	10.8	-	-	8.2	18.0	130	6940	130	6395	5547845