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Case 377 LPG & Gas Welch Plug, 172576

Case 377 LPG & Gas Welch Plug, 172576

SKU: 5172576
$294
In Stock (9)
Add to your cart
Condition: New Aftermarket
Cross-References: 172576, A28091
The RF Engine Advantage
Family Operated Since 1975

Original Equipment Quality

Parts that meet or exceed OEM specifications. Guaranteed performance you can trust. Reliability built into every component.

100+ Years of Expertise

A century of collective diesel knowledge and 10+ acres of engines and engine parts, we are more than just an online reseller or call center. We know heavy-duty diesel.

Here for the Long Haul

Same location and same phone number for the last 50 years. Same commitment to getting you the right parts at the right price.

New, Reman, & Used

RF Engine offers an expansive offering of new aftermarket, remanufactured, and used engines and engine parts all under one roof.

Details

1.625" welch

Case (Case IH) 900 Tractor After # 8108407 w/ 377 engine
Case (Case IH) 900 Tractor # 8107438-8108407 w/4.997 Liner Flange OD w/ 377 engine
Case (Case IH) 900 Tractor # 8107425-8108406 w/4.997 Liner Flange OD w/ 377D engine
Case (Case IH) 920 Tractor # 8107425-8108406 w/4.997 Liner Flange OD w/ 377D engine
Case (Case IH) 500 Tractor Late w/4.997 Flange w/ 377D engine
Case (Case IH) 900 Tractor After #8108406 w/ 377D engine
Case (Case IH) 900 Tractor Thru # 8108407 w/4.873 Liner Flange OD w/ 377 engine
Case (Case IH) 600 Tractor w/ 377 engine
Case (Case IH) 920 Tractor After #8108406 w/ 377D engine
Case (Case IH) 900 Tractor Thru # 8107424 w/ 377D engine
Case (Case IH) 920 Tractor Thru # 8107424 w/ 377D engine
Case (Case IH) 500 Tractor w/Cylinder Head # A6320A w/ 377D engine
Case (Case IH) 600 Tractor w/ 377D engine
Case (Case IH) 500 Tractor Early w/Cylinder Head # 6320A w/ 377D engine
Case (Case IH) 900 Tractor # 8107425-8108406 w/4.873 Liner Flange OD w/ 377D engine
Case (Case IH) 920 Tractor # 8107425-8108406 w/4.873 Liner Flange OD w/ 377D engine
International 76 Combine w/ C113 engine
International 55W Baler w/ C113 engine
International Super AV Tractor TSN 250001-310299 w/ C113 engine
International BN Tractor w/ C113 engine
International A Tractor w/ C113 engine
International C Tractor w/ block 354898R1-R4 w/ C113 engine
International 76 Combine w/ C113 engine
International 64 Combine w/ C113 engine
International Super A Tractor w/ C113 engine
International C Tractor TSN 501-47999 and After 48499 w/ block 251069R1 or 366204R2 w/ C113 engine
International 55T Baler w/ C113 engine
International 64 Combine w/ C113 engine
International A Tractor w/ C113 engine
International B Tractor w/ C113 engine
International BN Tractor w/ C113 engine
International Super AV Tractor TSN 310300-356000 w/ C113 engine
International AV Tractor w/ C113 engine
International 55W Baler w/ block 354898R1-R4 w/ C113 engine
International B Tractor w/ C113 engine
International AV Tractor w/ C113 engine
International Super A Tractor TSN 250001-310299 w/ C113 engine
International 55T Baler w/ C113 engine
Case (Case IH) 420 Wheel Tractor w/ 251D engine
Case (Case IH) W9 Wheel Loader Thru # 8150185 w/ 251 engine
Case (Case IH) 700 Tractor w/ 251 engine
Case (Case IH) 800 Tractor w/ 251 engine
Case (Case IH) 425 Wheel Tractor w/ 251D engine
Case (Case IH) 800 Combine w/719BF Engine w/ 251 engine
Case (Case IH) 400 Non-Super Tractor w/ 251D engine
Case (Case IH) 800 Combine w/709BF Engine w/ A267D engine
Case (Case IH) 700 Tractor w/ A267D engine
Case (Case IH) 800 Tractor w/ A267D engine
Case (Case IH) 400 Super Tractor w/ A267D engine
Case (Case IH) W9 Wheel Loader Thru #8150185 w/ A267D engine
Case (Case IH) 425 Wheel Tractor w/ 251 engine
Case (Case IH) 420 Wheel Tractor w/ 251 engine
Case (Case IH) 400 Non-Super Tractor w/ 251 engine
International Super HV Tractor w/ C164 engine
International Super H Tractor w/ C164 engine
International Super W-4 Tractor w/ C164 engine
International U175 Power Unit w/ C169, C175 engine
International U169 Power Unit w/ C169, C175 engine
International 350 Tractor C175 Engine w/ C169, C175 engine
International 140 Combine w/ C169, C175 engine
International 300 Tractor C169 Engine w/ C169, C175 engine
International Super I-4 Tractor w/ C164 engine
International U164 Power Unit w/ C164 engine
International I-4 Tractor w/ C152 engine
International W-4 Tractor After 33339 w/ C152 engine
International U4 Power Unit w/ C152 engine
International 330 Tractor w/ C135 engine
International 340 Tractor w/ C135 engine
International 500 Crawler w/ C135 engine
International TC-5 Crawler w/ C135 engine
International 201 Windrower w/ C135 engine
International OS-4 Tractor w/ C152 engine
International 3514 Tractor w/ C153 engine
International 93 Combine w/ C153 engine
International O-4 Tractor w/ C152 engine
International 770 Sprayer w/ C146 engine
International HV Tractor After 391357 w/ C152 engine
International H Tractor w/ C152 engine
International T-4 Crawler w/ C123 engine
International T-5 Crawler w/ C135 engine
International 780 Sprayer w/ C146 engine
International 424 Tractor w/ C146 engine
International 2424 Lo-Boy Tractor w/ C146 engine
International 2424 Tractor w/ C146 engine
International 500 Crawler w/ C146 engine
International 500C Crawler w/ C146 engine
International 660 Sprayer w/ C146 engine
International 2444 Tractor w/ C153 engine
International 76 Combine w/ C123 engine
International 55T Baler w/ C123 engine
International 57T Baler w/ C123 engine
International 55W Baler w/ C123 engine
International 76 Combine w/ C123 engine
International 404 Tractor w/ C135 engine
International T-340 Crawler After ESN 100500 w/ C135 engine
International 2404 Tractor w/ C135 engine
International 57W Baler w/ C123 engine
International 230 Tractor w/ C123 engine
International 163 Windrower except block 354898R1-R4 w/ C123 engine
International 161 Windrower w/ C123 engine
International 130 Tractor w/ C123 engine
International C Tractor TSN 48000-48499 w/ C123 engine
International 240 Tractor w/ C123 engine
International C Tractor w/ C123 engine
International 55W Baler w/ block 354898R1-R4 w/ C123 engine
International 100 Tractor w/ C123 engine
International Super A-1 Tractor After TSN 356000 w/ C123 engine
International Super AV-1 Tractor After TSN 356000 w/ C123 engine
International 55T Baler w/ C123 engine
International 56T Baler w/ C123 engine
International 105 Combine w/ C153 engine
International T-340 Crawler Thru ESN 100500 w/ C135 engine
International 140 Tractor w/ C123 engine
International 56W Baler w/ C123 engine
International 200 Tractor w/ C123 engine
International 225 Windrower w/ C153 engine
International W-4 Tractor Thru 33339 w/ C152 engine
International 91 Combine w/ C135 engine
International OS-4 Tractor w/ C152 engine
International O-4 Tractor w/ C152 engine
International 375 Windrower w/ C153 engine
International 275 Windrower w/ C153 engine
International 4000 Forklift w/ C153 engine
International I-4 Tractor w/ C152 engine
International 230 Windrower w/ C153 engine
International U4 Power Unit w/ C152 engine
International H Tractor w/ C152 engine
International 504 Tractor w/ C153 engine
International 210 Windrower w/ C153 engine
International 2500 Tractor w/ C153 engine
International 444 Tractor w/ C153 engine
International 203 Combine w/ C153 engine
International HV Tractor Thru 391357 w/ C152 engine
OEM Part Number Cross Reference(s): A28091, 172576

Warranty Information

Overview

We stand behind every part we sell — new, rebuilt, or used. While RF Engine is not the manufacturer and cannot extend additional warranties, we do guarantee that each product will arrive as described, in usable condition, and free from material defects or misrepresentation.


Warranty Coverage

  • New Parts: Covered under the original manufacturer’s warranty. All terms and coverage are set by the manufacturer. Copies available upon request.
  • Rebuilt, Reconditioned, and Used Parts: Backed by an inspection-only warranty unless otherwise stated. As with new parts, RF Engine cannot provide further warranty coverage beyond the manufacturer’s terms.
  • No Additional Warranty: RF Engine does not offer any express or implied warranties. However, if an issue arises, we are here to assist and will support you through any applicable manufacturer claim process.

Our Guarantee

All parts are guaranteed to be in the condition stated at the time of sale and free from misrepresentation. If something isn’t right, we’ll work with you to resolve it — including returns, exchanges, or refunds when appropriate.

  • We sell parts — we don’t make them — but we stand behind what we sell.
  • Guaranteed to match the description or your money back.
  • Manufacturer’s warranty applies where available; we’ll help if you ever need it.

Used Parts — What to Expect

Used parts are cleaned, inspected, and guaranteed to be usable, but please note:

  • They often have signs of wear, surface rust, blemishes, or cosmetic imperfections.
  • They may include old gaskets or residue and likely require further cleaning or machining before installation.
  • They are not refurbished, remanufactured, or restored to like-new appearance.

We recommend careful inspection and strongly encourage installation by a qualified heavy-duty diesel mechanic.

  • Worn, not worn out — used parts may show signs of age but are fit for service.
  • All used parts are tested for usability, not appearance.

Questions?

If you have questions about a part’s condition, warranty, or how we handle returns and guarantees, feel free to contact us. We’re here to help.


Last Updated: June 22, 2025

All specifications and numbers are provided for reference only and should be independently verified before use. While we guarantee our parts match their descriptions and accept returns for any discrepancies, we cannot be held liable for installation costs, modifications, or consequential damages. Questions about compatibility? Contact our parts experts at 800-828-6943, sales@dieselcranks.com, or via live chat, Mon-Fri 8am-5pm EST.