Description
A pneumatic torque wrench must push against something while it turns the nut. On a truck wheel, you do not want that push to land on the hub or the rim. The Snap-on WTE4G72L9 wheel torque extension moves the reaction into a cup at the nut. It also adds 9 in of reach for the PTM740.
Snap-on WTE4G72L9 wheel torque extension specs
| Length | 9 in |
|---|---|
| Drive size | 1 in |
| Maximum torque output | 1,000 ft-lb (1,350 N·m) |
| Weight | 8-1/2 lb |
| Storage case | Not included |
| Made for | PTM740 pneumatic torque wrench |
How the cup system works
The extension works with Snap-on reaction cups. Together, the cup and the extension form a reaction point around the lug nut. Therefore the reaction stays at the wheel nut rather than the hub. Snap-on also fits an adjustable reaction arm that suits a wide range of hub designs.
Choosing the cup
Snap-on offers standard cups and deep-well cups. Each one matches named Snap-on impact sockets, such as IM and SIM series sockets. So start with the socket that fits your wheel nut, then pick the cup that Snap-on pairs with it. Lost in HCM can check the match for you.
Headroom on the PTM740
The PTM740 delivers 147-740 ft-lb, while this extension takes up to 1,000 ft-lb. As a result, the extension never limits the tool’s top setting. It also keeps 9 in between the gearbox and the wheel face, which helps on recessed lugs and deep rims.
Typical users in Vietnam
- Bus and truck fleet workshops.
- Tire service centers for heavy vehicles.
- Mining and port equipment teams with large wheel hubs.
Care for the WTE4G72L9
Clean brake dust and road grit from the cup seat after each shift. Also inspect the drive for wear and the arm for bends. Because Snap-on does not include a storage case, keep the extension on a rack or in a padded drawer.
Ordering the Snap-on WTE4G72L9 wheel torque extension
Lost in HCM supplies the extension and prepares every quote, while SMK Vietnam lists it. Please request a quote from Lost in HCM and name your wheel nut size, so they can suggest the right cup. You can also see torque multipliers, including the PTM740, or contact SMK Vietnam. Snap-on’s site is snapon.com.
WTE4G72L9 FAQ
Which tool does the WTE4G72L9 suit?
Snap-on lists it for the PTM740 pneumatic torque wrench.
Does it include reaction cups?
No. The cups appear as separate wheel torque accessories, so choose the one that matches your socket.
What is its torque limit?
Its maximum torque output is 1,000 ft-lb (1,350 N·m), according to Snap-on.
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