8C-3839 | Caterpillar® Rod Buffer Step Seal 2.500

8C-3839 | Caterpillar® Rod Buffer Step Seal 2.500" - Teflon/Nitrile

Marsoni

M251S

$48.55

Get it in 3 business days with 1 day shipping. Friday, May 29

8C-3839 | Caterpillar® Rod Buffer Step Seal 2.500" - Teflon/NitrileProduct Details : 8C 3839 Caterpillar Rod Buffer Step Seal 2. 500" Teflon Nitrile Part No: RCAT 8C3839 Caterpillar Reference No.: 8C 3839 Product Category: Rod Seals Product Type: Rod Buffer Step Seal Profile: CAT Material(s): Teflon Nitrile Material Code: PTFE NBR Temperature Range: 30F to +230F ( 34C to +110C) Pressure Range: 5800 PSI ( 400 Bar) Surface Speed: < 13 ft s (4 m s) System Of Measurement: Inch Rod Diameter: 2. 500" Dimensions: 2. 500" x

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No reason not to go OEM for this! Came with every possible gasket and seal I could need. Specifically for my Alpha One Gen 1 it took maybe 25-30 min to completely install. While you’re there check the base plate for wear and the other surrounding items like your water tube. Rather keep the lower unit off for an extra day to get another part than a catastrophic failure.

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Reviewed in the United States on September 9, 2025

Verified Purchase

Taylor 🤍

Lexington, US

★★★★★ 5

Husbands things

My husband bought this. I don’t know much about it but he has zero complaints. He bought it for a boat. He has fixed up 2 boats, sold one & we kept the other. So he apparently knows what to buy & how to use it.

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Reviewed in the United States on November 6, 2025

Verified Purchase

Edward W.

Draper, US

★★★★★ 4

Amazon is easy and fast . No problems the oarts was exactly as described.

liked that everything was in one bag . and could make sure everything was changed .

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Reviewed in the United States on August 3, 2020

Verified Purchase

Justin Yeager