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Astro Milestone 4.00-8 D/8PLY BSW

Commercial Truck
Commercial All Position

Rims Not Included

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Category

Commercial Truck | Commercial All Position

TWT73GLSSAST

This listing is for new Astro Milestone 4.00-8 D/8PLY BSW Tires. Manufacturer part number: TWT73GLSSAST.

The Astro Milestone is an all-season tire designed for passenger cars, sedans, and compact crossovers that prioritize comfort, durability, and performance. Its symmetric tread pattern provides stable handling, responsive steering, and a smooth, quiet ride on both dry and wet roads. Wide circumferential grooves efficiently channel water away from the contact patch, reducing the risk of hydroplaning and improving traction in rainy conditions. Built with a durable compound, the Milestone promotes even wear and long service life, while multiple sipes provide additional traction in light snow. Ideal for everyday commuting and long-distance travel, the Astro Milestone offers a balanced blend of safety, reliability, and affordability for drivers looking for dependable performance year-round.

For over 2 decades, Tires Easy has served the online tire community. With over 8 million tires sold, 43K+ 5-star reviews, and tens of thousands of tires just one click away, there’s a reason why millions of customers choose Tires Easy as their online tire destination.

8+ Million Tires

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Customer Reviews

20+ Years

In Business

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About the Manufacturer:

Astro Tires, a proprietary brand introduced by Tire Group International, LLC in 1995, is a value focused tire brand specializing in agriculture, industrial, OTR, light truck, and military applications, along with tubes and flaps. Backed by TGI, a global tire manufacturer and distributor founded in 1992, Astro Tires is recognized for dependable performance, practical value, and a product range built for demanding work and specialty use. Official brand materials highlight quality, reliability, premium materials, advanced tire building technologies, and an ongoing commitment to the U.S. market

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Specifications

Specs

Value

Description

Sidewall

BSW

Describes the sidewall appearance. Examples: BSW= Black Side Wall, WSW = White Side Wall, OWL = Outlined White Letters.

Load Index

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
A guide to buying tires

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
Types of tires

D/8PLY

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)

880

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)

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 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).

Section Width

4.4

The measurement from sidewall to sidewall.

Overall Diameter

16.3

The height of the tire when fully inflated.

Manufacturer Part Number

TWT73GLSSAST

Manufacturer part number (sku)

Financing

You can pre-qualify to finance your tires, or you can simply choose Affirm at check-out. Fill out your information and choose the monthly payment that works best for you!

Select 3, 6 or 12 monthly payments, with rates from 10% - 36% APR. 18 months financing available for orders over $1000.00

Checking your eligibility won't affect your credit. You will receive an immediate answer from Affirm.

Affirm has no hidden fees or costs and is completely secure.
Quick and easy, real tire financing, real fast! You can apply in advance and know you can shop for tires when you are ready.

To learn more visit Buy With Affirm or read their convenient Affirm FAQ's. All credit decisions are made by Affirm.

To contact Affirm regarding your account, please call 1-855-423-3729.

No hidden fees

Affirm has no hidden fees or costs and is completely secure

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You choose the payment schedule that works for you

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No Credit? No problem!

Lease your tires with Katapult!

With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.

No credit required

Simple initial payment

No late fees ever

Payoff early is desired

Learn more about Katapult lease-to-own tire financing

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 #
4.00-8	76F	-	D/8PLY	16.3	4.4	-	-	-	-	62	880	-	-	TWT73GLSSAST
5.30-12	82L	-	C/6PLY	21.6	5.3	-	-	-	10.0	81	1047	-	-	TLT42GTSSAST
5.65-12	63L	-	C/6PLY	20.4	5.5	-	-	-	10.0	30	606	-	-	TLT43GTSSAST
6.70-15	104J	-	E/10PLY	28.1	7.0	-	-	-	16.3	75	1984	-	-	TLT12ETSSAST
7.00-15	114J	-	F/12PLY	29.8	7.8	-	-	-	16.3	90	2601	-	-	TLT14FTSSAST
7.00-16	111J	-	E/10PLY	30.8	7.8	-	-	-	17.6	75	2403	-	-	TLT47GTSSAST
7.00-16	118J	-	G/14PLY	30.8	7.8	-	-	-	17.6	100	2910	-	-	TLT19GTSSAST
7.50-15	121J	-	G/14PLY	30.7	8.3	-	-	-	17.6	90	3196	-	-	TLT27GTSSAST
7.50-16	120J	-	F/12PLY	32.0	8.3	-	-	-	16.3	90	3086	-	-	TLT40GTSSAST
7.50-16	124J	-	H/16PLY	32.0	8.3	-	-	-	16.3	110	3527	-	-	TLT20GTSSAST
8.25-16	129J	-	H/16PLY	33.6	9.2	-	-	-	17.6	110	4078	-	-	TLT23GTSSAST
11.00-20	149J	-	H/16PLY	42.7	11.5	-	-	-	18.9	115	7165	-	-	TLT39GTSSAST
145-12	80E	-	E/10PLY	21.2	5.5	-	-	-	11.3	50	992	-	-	TLT44GTSSAST
155-12	88K	-	E/10PLY	21.9	6.1	-	-	-	15.1	65	1234	-	-	TLT46GTSSAST