SKU: 71569676434

Grundomat Thread-On Tail Expander

Sale price$673.17 Regular price$747.97
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

Grundomat Thread-On Tail ExpanderGRUNDOMAT Tail Piece Expanders provide an economical way to upsize the bore diameter when working in lighter soil conditions. The expander threads directly onto the GRUNDOMAT tool, allowing contractors to increase the bore size without using a separate front end expander setup. This bubble type modular attachment adds extra versatility to GRUNDOMAT pneumatic piercing tools in certain soil conditions where a larger finished bore is needed for pipe,

GRUNDOMAT Tail Piece Expanders provide an economical way to upsize the bore diameter when working in lighter soil conditions. The expander threads directly onto the GRUNDOMAT tool, allowing contractors to increase the bore size without using a separate front-end expander setup.

This bubble-type modular attachment adds extra versatility to GRUNDOMAT pneumatic piercing tools in certain soil conditions where a larger finished bore is needed for pipe, conduit, cable, or utility installation.

Tail piece expanders are available for select GRUNDOMAT models and provide different upsizing diameters depending on the tool size and job requirements.

Available Tail Piece Expanders

Part Number GRUNDOMAT Model Upsize Diameter
GZ0856462 85 98 mm / 3.85 in.
GP0956461 95 105 mm / 4.13 in.
GP1106461 110 118 mm / 4.65 in.
GP1106462 110 138 mm / 5.43 in.
GP1306461 130 140 mm / 5.51 in.

Features

  • Threads directly onto the GRUNDOMAT tool
  • Economical way to increase bore diameter in lighter soils
  • Bubble-type modular attachment design
  • Adds versatility for certain soil conditions
  • Available for select GRUNDOMAT models
  • Useful for pipe, conduit, cable, and utility installation jobs

GRUNDOMAT Tail Piece Expanders are a practical accessory for contractors who need a simple, cost-effective way to increase bore diameter while using compatible GRUNDOMAT pneumatic piercing tools.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71569676434

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4.6 ★★★★★
Based on 14 reviews
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Verified Purchase
Lucas Zoll
West Palm Beach, US
★★★★★ 5
Recommended replacement parts
Worked as advertised, quicksilver parts for replacement on alpha drive gen 2 outdrive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
C
Verified Purchase
charscars
Lexington, US
★★★★★ 5
Very complete kit
This Kit has everything you need to change your waer pump impellor. It comes with directions that are easy to follow, but there re plenty of videos available to help. The Quicksilver kit is priced well and was delivered quickly.
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Reviewed in the United States on November 13, 2025
E
Verified Purchase
Eric Moore
Chelsea, US
★★★★★ 5
Perfect OEM fit
Fixed my impeller on my Mercury Salt Water 115. Best done as a two man job. Lots of videos available online .
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Reviewed in the United States on April 14, 2026
A
Verified Purchase
Aiden
Draper, US
★★★★★ 4
Fits 2001 Bayliner
This product was definitely different than the original I have a 2001 Bayliner with a 3.0 MerCruiser and an alpha one second GEN drive The kit worked but the bottom gasket had a weird cut different than the original I added a gasket maker just in case (Yamaha Lube) Brand! All in all kit was fine, One thing to note is the directions that come with the kit at least for my version we’re not for the same alpha one second GEN 4 stroke kit that I got they were for a two-stroke in the pictures didn’t look the same as the parts that I had got which is fine but it’s miss leading when you send a 4 stroke kit but 2 stroke 90hp to 200hp alpha one directions! If it craps out this review will change
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Reviewed in the United States on June 30, 2020
A
Verified Purchase
Air Assault
Belleville, US
★★★★★ 5
Super great product. Has the power and functionality to get you repairing fast!
Super great product. Has the power and functionality to get you repairing fast! Fully recommend this and it has worked great since I've owned it. Still going strong in the durability and design looks like it will keep it going strong for many years. Highly highly recommend buying this. Will work in Kuwait, Iraq, UAE, and Saudi. Good for Camps around the CENTCOM area!
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Reviewed in the United States on October 6, 2025

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