Product Description
- Manufacturer: Stemco
- Part Number: 343-4372
- Material: Cast Aluminum
- Bolt Circle: 6-3/4″
- Bolt Size: 5/16″
- No. of Bolts: 6
- Height: 2-11/16″
- Inside Depth: 1-9/16″
- Flange ID: 4-3/8″
- Flange OD: 7-1/4″
- Side Plug: Yes
- Includes 330-3118 gasket
- Download:Stemco Hub cap.pdf
Cross References: 3434372, 343-4372, 3143900, 1996
The traditional aluminum series 340 and 343 provide durability with the trademark red plug to allow venting of the hub cap. Using cast aluminum for constructing the hub cap body prevents warpage and provides superior durability and heat dissipation properties. The trucking industry recognizes STEMCO hub caps as the benchmark.
SI™ Oil and Grease Hub Caps
STEMCO MTIS/PSI™ hub caps are available in both oil and grease hub caps for several popular applications. The oil hub caps (343-4370, 343-4371 and 343-4372) have a side fill plug and a standard window with oil fill lines. The grease hub caps (340-4370, 340-4371 and 340-4372) do not have a side fill plug and incorporate a gray opaque window with no markings. The PSI™ tee fitting and flapper valve are to be installed in the center of the hub cap and are available from Meritor or PSI™ as a part of the PSI™ system.
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