Flywheel Ring Gear
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER EXCAVATOR (NORTH AMERICA) | 125B | 1988 – 1989 |
| CASE UNI-LOADER SKID STEER LOADER | 1840 | 1989 – 2001 |
| CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA) | 1845C | 1985 – 2001 |
| CASE SKID STEER LOADER | 40XT | 2001 – 2005 |
| CASE POWER UNIT | 4390 | 1991 – 1995 |
| CASE POWER UNIT | 4390T | 1995 |
| CASE IH IRRIGATION POWER UNIT | 4391 | 1999 |
| CASE IH IRRIGATION POWER UNIT | 4391T | 1999 |
| CASE IH IRRIGATION POWER UNIT | 4391TA | 1999 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
- Weight: 1.34 kg
Compatible equipment
This part fits CASE CRAWLER EXCAVATOR (NORTH AMERICA), CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA), CASE SKID STEER LOADER, CASE POWER UNIT, CASE IH IRRIGATION POWER UNIT, CASE LONG TRACK CRAWLER TRACTOR, CASE CONSTRUCTION KING LOADER BACKHOE, CASE IH MAXXUM TRACTOR (NORTH AMERICA), CASE IH DIESEL TRACTOR, CASE IH MAXXUM TRACTOR, LOADER BACKHOE (NORTH AMERICA), LOADER BACKHOE (NORTH AMERICA) (ASN JJG0020000), CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE, SERIES 2 LOADER BACKHOE - ASN JJG0239360, CASE CONSTRUCTION KING FORKLIFT, SERIES 2 LOADER BACKHOE - ASN JJG0210575, CASE IH SELF-PROPELLED WINDROWER, CASE CRAWLER TRACTOR, SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005, CASE TRENCHER, CASE SERIES-2 TELESCOPIC HANDLER, CASE TELESCOPIC HANDLER, CASE TIER-2 TELESCOPIC HANDLER, CASE SKID STEER LOADER - ASN JAF0318922 (NA) JAF0352169 (EU), MOTOR GRADER TIER I (BR) - ASN N8AF07000, CASE SKID STEER LOADER - ASN JAF0352234 (NA) JAF0352715 (EU), CASE TURBO TRENCHER, TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION), MOTOR GRADER TIER 3 (BR) - ASN N8AF04429, CASE IH SELF-PROPELLED WINDROWER TRACTOR, MOTOR GRADER TIER 0 - TIER 2 (BR) - ASN N8AF05114, MOTOR GRADER TIER 3 (BR) - ASN N8AF05110, CASE IH SELF-PROPELLED ROTARY WINDROWER TRACTOR, CASE SKID STEER LOADER - ASN JAF0320050 (NA) JAF0274262 (EU), CASE SKID STEER LOADER - ASN JAF0311357 (NA) JAF0274360 (EU), CRAWLER DOZER (N.A. VERSION), MOTOR GRADER TIER 1 - TIER 2 - ASN N8AF00626, VARIABLE POWER MOTOR GRADER, WHEEL LOADER (N.A. VERSION), MOTOR GRADER S/N 98L00120 & AFTER, POWER UNIT, QSB - MOTOR GRADER, CASE UNIT LOADER, CASE WHEEL LOADER including models 125B, 1840, 1845C, 40XT, 4390, 4390T, 4391, 4391T, 4391TA, 450C, 455C, 480E, 480E LL, 480F, 480F LL, 5120, 5150, 5220, 550, 580E, 580K, 580SE, 580SL, 580SM, 584E.
Frequently asked questions
What is the part number?
The manufacturer part number is J901774.
Is this a genuine OEM part?
Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.
Will this fit my machine?
See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.
Where does this ship from?
Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Replaces the following OEM and aftermarket part numbers. Click any reference to find matching parts.
- Manufacturer part number
- J901774
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 2.95 lb
Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.
Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.
30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.
All 89 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER EXCAVATOR (NORTH AMERICA) | 125B | 1988 – 1989 |
| CASE UNI-LOADER SKID STEER LOADER | 1840 | 1989 – 2001 |
| CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA) | 1845C | 1985 – 2001 |
| CASE SKID STEER LOADER | 40XT | 2001 – 2005 |
| CASE POWER UNIT | 4390 | 1991 – 1995 |
| CASE POWER UNIT | 4390T | 1995 |
| CASE IH IRRIGATION POWER UNIT | 4391 | 1999 |
| CASE IH IRRIGATION POWER UNIT | 4391T | 1999 |
| CASE IH IRRIGATION POWER UNIT | 4391TA | 1999 |
| CASE LONG TRACK CRAWLER TRACTOR | 450C | 1983 – 1994 |
| CASE LONG TRACK CRAWLER TRACTOR | 455C | 1983 – 1990 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 480E | 1986 – 1989 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 480E LL | 1986 – 1989 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 480F | 1989 – 1994 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 480F LL | 1989 – 1994 |
| CASE IH MAXXUM TRACTOR (NORTH AMERICA) | 5120 | 1990 – 1997 |
| CASE IH DIESEL TRACTOR | 5150 | 1996 |
| CASE IH MAXXUM TRACTOR | 5220 | 1992 – 1995 |
| CASE LONG TRACK CRAWLER TRACTOR | 550 | 1989 – 1991 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 580E | 1983 – 1989 |
| LOADER BACKHOE (NORTH AMERICA) | 580K | 1987 – 1994 |
| LOADER BACKHOE (NORTH AMERICA) (ASN JJG0020000) | 580K | 1987 – 1994 |
| CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE | 580SE | 1983 – 1987 |
| SERIES 2 LOADER BACKHOE - ASN JJG0239360 | 580SL | 1994 – 2000 |
| LOADER BACKHOE (NORTH AMERICA) | 580SM | 1999 – 2004 |
| CASE CONSTRUCTION KING FORKLIFT | 584E | 1988 – 1999 |
| CASE CONSTRUCTION KING FORKLIFT | 585E | 1988 |
| CASE CONSTRUCTION KING FORKLIFT | 586E | 1988 |
| SERIES 2 LOADER BACKHOE - ASN JJG0210575 | 590SL | 1998 – 2000 |
| LOADER BACKHOE (NORTH AMERICA) | 590SM | 2001 – 2004 |
| CASE IH SELF-PROPELLED WINDROWER | 6000 | 1983 – 1988 |
| CASE SKID STEER LOADER | 60XT | 2002 – 2005 |
| CASE CRAWLER TRACTOR | 650 | 1990 – 1991 |
| CASE IH SELF-PROPELLED WINDROWER | 6500 | 1983 – 1988 |
| SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005 | 650K | 2002 – 2005 |
| CASE TRENCHER | 660 | 1986 – 2003 |
| CASE SERIES-2 TELESCOPIC HANDLER | 686G | 1999 – 2003 |
| CASE TELESCOPIC HANDLER | 686G | 1998 – 2003 |
| CASE SERIES-2 TELESCOPIC HANDLER | 686GXR | 1999 – 2003 |
| CASE TIER-2 TELESCOPIC HANDLER | 688G | 1999 – 2003 |
| CASE SKID STEER LOADER | 70XT | 2002 – 2005 |
| SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005 | 750K | 2002 – 2005 |
| CASE SKID STEER LOADER | 75XT | 2002 – 2005 |
| CASE SKID STEER LOADER - ASN JAF0318922 (NA) JAF0352169 (EU) | 75XT | 2002 – 2005 |
| CASE TRENCHER | 760 | 2000 – 2004 |
| MOTOR GRADER TIER I (BR) - ASN N8AF07000 | 845 | 2008 – 2010 |
| SERIES 1 CRAWLER - 07/01/2002 - 01/31/2005 | 850K | 2002 – 2005 |
| CASE SKID STEER LOADER - ASN JAF0352234 (NA) JAF0352715 (EU) | 85XT | 2002 – 2005 |
| CASE TURBO TRENCHER | 860 | 1992 – 2002 |
| TRENCHER SUPPLEMENT (NORTH AMERICAN HOMOLOGATION) | 860 | 1992 – 2002 |
| MOTOR GRADER TIER 3 (BR) - ASN N8AF04429 | 865 VHP | 2005 – 2008 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8820 | 1990 – 1999 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8825 | 1998 – 2000 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8825HP | 1998 – 2000 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8830 | 1988 – 1997 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8840 | 1988 – 1999 |
| MOTOR GRADER TIER 0 - TIER 2 (BR) - ASN N8AF05114 | 885 | 2008 – 2009 |
| MOTOR GRADER TIER 3 (BR) - ASN N8AF05110 | 885 | 2005 – 2010 |
| CASE IH SELF-PROPELLED ROTARY WINDROWER TRACTOR | 8850 | 1988 – 1999 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8860 | 1999 – 2000 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8860HP | 1999 – 2000 |
| CASE IH SELF-PROPELLED WINDROWER TRACTOR | 8870 | 1998 – 2000 |
| CASE IH SELF-PROPELLED ROTARY WINDROWER TRACTOR | 8880 | 1999 – 2000 |
| CASE IH SELF-PROPELLED ROTARY WINDROWER TRACTOR | 8880HP | 1999 – 2000 |
| CASE SKID STEER LOADER | 90XT | 1997 – 2005 |
| CASE SKID STEER LOADER - ASN JAF0320050 (NA) JAF0274262 (EU) | 90XT | 2001 – 2005 |
| CASE SKID STEER LOADER | 95XT | 2001 – 2005 |
| CASE SKID STEER LOADER - ASN JAF0311357 (NA) JAF0274360 (EU) | 95XT | 2001 – 2005 |
| CASE TURBO TRENCHER | 960 | 1992 – 2004 |
| CRAWLER DOZER (N.A. VERSION) | DC100 | 2000 – 2003 |
| CRAWLER DOZER (N.A. VERSION) | DC70 | 1999 – 2003 |
| CRAWLER DOZER (N.A. VERSION) | DC80 | 1999 – 2003 |
| MOTOR GRADER TIER 1 - TIER 2 - ASN N8AF00626 | F140 | 2008 – 2010 |
| VARIABLE POWER MOTOR GRADER | F140 VP | 1980 – 1996 |
| WHEEL LOADER (N.A. VERSION) | FR120.2 | 1998 – 1999 |
| MOTOR GRADER S/N 98L00120 & AFTER | G80 | 1999 |
| POWER UNIT | NEW HOLLAND RP65 | 2014 |
| POWER UNIT | NEW HOLLAND RP85 | 2014 |
| POWER UNIT | NH RP110 | 2014 – 2015 |
| POWER UNIT | NH RPZ65 | 2014 – 2015 |
| POWER UNIT | NH RPZ85 | 2014 – 2015 |
| QSB - MOTOR GRADER | RG170.B VHP | 2005 – 2010 |
| POWER UNIT | RP110 | 2013 – 2015 |
| POWER UNIT | RP65 | 2013 – 2016 |
| POWER UNIT | RP85 | 2013 – 2017 |
| POWER UNIT | RPZ65 | 2014 – 2015 |
| POWER UNIT | RPZ85 | 2014 – 2015 |
| CASE UNIT LOADER | W11B | 1984 – 1993 |
| CASE WHEEL LOADER | W14C | 1990 – 1993 |
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