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ST Style Urethane Wiper Ring, 2.50 Inch Rod Diameter, 3.00 Inch Wiper OD, 1/4 Inch Base Thickness

Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Rod Diameter A 2.50	Supplier Part Number ST-250	Thickness (in) 1/4	Product Weight 0.03 lbs	Alternate Part Numbers Alternate Part Number C1DL40, Alternate Part Number MI-00967568, Alternate Part Number MINO-00407X20016

Product Questions & Answers 3

Product Questions & Answers

got a cylinder with a 2.5 inch rod, is this the right wiper size or am i missin something

Question by: Billy P on Jun 27, 2025, 8:09 PM

The key numbers are the rod diameter and the wiper outside diameter. This ST style wiper ring is sized for a 2.50 inch rod and has a 3.00 inch wiper OD, with a 1/4 inch base thickness.

Answer by: Customer Support on Jun 29, 2025, 10:28 AM

Got a 2.50 inch rod on a hydraulic cylinder and need a wiper, this the right size to grab?

Question by: Dale W on Nov 15, 2025, 6:54 AM

Yeah, that's your part. The wiper seats on a 2.50-inch rod diameter with a 3.00-inch outer diameter, so it should drop right into a standard ST style groove without any modification. The 1/4-inch base thickness is worth confirming against your bore depth before you button everything back up, but dimensionally you're looking at an exact match for that rod size.

Answer by: Customer Support on Nov 16, 2025, 5:45 PM

What size rod does this wiper ring fit? Just wanna make sure it's gonna work for my setup.

Question by: Marvin C on Sep 30, 2025, 2:46 PM

This ST Style Urethane Wiper Ring is made to fit a 2.50-inch rod diameter. The outside diameter of the wiper itself is 3.00 inches, and it's 1/4 inch thick.

Answer by: Customer Support on Oct 1, 2025, 8:42 PM

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Model Number	Rod Diameter A	Wiper O.D. B	Thickness (in)
ST-125	1.25	1.625	3/16
ST-175	1.75	2.125	3/16
ST-200	2	2.5	1/4
ST-300	3	3.5	1/4
ST-100	1	1.375	3/16
ST-112	1.125	1.5	3/16
ST-118	0.188	1.563	3/16
ST-137	1.375	1.75	3/16
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ST-187	1.875	2.25	3/16
ST-212	2.125	2.625	1/4
ST-225	2.25	2.75	1/4
ST-250	2.5	3	1/4
ST-275	2.75	3.25	1/4
ST-325	3.25	3.75	1/4
ST-350	3.5	4	1/4
ST-375	3.75	4.25	1/4
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ST-475	4.75	5.5	3/8
ST-50	0.5	0.75	1/8
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