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APPROVED VENDOR Piston Seal Kit: For 3 1/4 in Bore Dia., Buna N, Black, -40° to 250°F - Piston Seal Kits
APPROVED VENDORPiston Seal Kits

APPROVED VENDOR Piston Seal Kit: For 3 1/4 in Bore Dia., Buna N, Black, -40° to 250°F

The APPROVED VENDOR Piston Seal Kit (SKU 4PKH8) is a 6-piece seal kit for 3 1/4 in bore diameter pistons. It includes two each of 80 Durometer Buna U-Cups, Hytrel Backup Rings, and 70 Durometer Buna O-Rings, all in…

SKU 3G-OTH-162074

Brand
APPROVED VENDOR
Item
Piston Seal Kit: For 3 1/4 in Bore Dia., Buna N, Black, -40° to 250°F
Category
Piston Seal Kits
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
4PKH8
Type
Buna N, Black, -40° to 250°F
Pieces
6
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Piston Seal Kit (SKU 4PKH8) is a 6-piece seal kit for 3 1/4 in bore diameter pistons. It includes two each of 80 Durometer Buna U-Cups, Hytrel Backup Rings, and 70 Durometer Buna O-Rings, all in black Buna N material. The kit operates in temperatures from -40° to 250°F.

Frequently Asked Questions

What is the APPROVED VENDOR Piston Seal Kit used for?

The APPROVED VENDOR Piston Seal Kit is used to rebuild or repair hydraulic and pneumatic cylinders with a 3 1/4 in bore diameter. It is commonly applied in industrial machinery, manufacturing equipment, and fluid power systems to restore sealing performance and prevent fluid leakage.

What are the specifications of the APPROVED VENDOR Piston Seal Kit 4PKH8?

The kit includes 6 pieces: two each of 80 Durometer Buna U-Cups, Hytrel Backup Rings, and 70 Durometer Buna O-Rings. It is made of black Buna N material and operates in temperatures from -40° to 250°F. The manufacturer part number is 4PKH8.

Where to buy the APPROVED VENDOR Piston Seal Kit worldwide?

You can source the APPROVED VENDOR Piston Seal Kit through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the kit reaches your facility reliably.

How to install the APPROVED VENDOR Piston Seal Kit?

To install, first clean the piston groove and remove old seals. Lubricate the new Buna U-Cups, Hytrel Backup Rings, and O-Rings with compatible hydraulic fluid. Carefully fit each component into the groove without twisting, then reassemble the cylinder. Follow standard hydraulic seal installation practices.

Used in

Common applications for APPROVED VENDOR
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APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR piston seal kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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APPROVED VENDOR PTFE Square Ring Piston Seal Set: For 3 1/4 in Bore Dia., Buna N, 58 Shore D (MPN 4PKK5). Key specifications — attr95513: Black; attr95516: (1) Each: PTFE Piston Ring With Nitrile Energizer, 70 Durometer Buna O-Ring; attr95514: -40° to 250°F; attr95511: Buna N; attr95512: 58 Shore D; attr98887: APPROVED VENDOR.
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APPROVED VENDOR Piston Seal Kit: For 1 1/2 in Bore Dia., Buna N, Black, -40° to 250°F, 6 Pieces (MPN 4PKH5). Key specifications — attr95513: Black; attr95516: (2) Each: 80 Durometer Buna U-Cups, Hytrel Backup Rings, 70 Durometer Buna O-Rings; attr95514: -40° to 250°F; attr95511: Buna N; attr98887: APPROVED VENDOR.
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APPROVED VENDOR
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