CASE CONSTRUCTION
OEM
Part No. 8603343
O-ring
Case Construction ·204 Fitments
Ships fastFrom our warehouse
30-day returnsNo restocking fees
OEM guaranteedDirect from manufacturer
| Machine | Model | Years |
|---|---|---|
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
Enhance the performance of your Case Construction equipment with the durable O-Ring #8603343. Designed for optimal sealing and reliability, this essential part ensures efficient operation, reducing downtime and maintenance costs in heavy-duty applications.
Compatible equipment
This part fits WHEEL LOADER TIER 3 (EU), WHEEL LOADER - TIER 4 (NA), CASE WHEEL LOADER, CASE WHEEL LOADER - BRITISH ARMY, CASE WHEEL LOADER (NORTH AMERICA), CASE WHEEL LOADER - EUROPE (N4HE03001- / XT N4HE06001-), CASE WHEEL LOADER - EUROPE (N6HE03001- / XT N6HE06001-), ARTICULATED WHEEL LOADER (BRAZIL), CASE WHEEL LOADER TIER 3 (EU), WHEEL LOADER (EU), WHEEL LOADER TIER 3 (NA), CASE ARTICULATED WHEEL LOADER (BRAZIL), CASE WHEEL LOADER (S/N JEE0155000 & BEFORE), CASE WHEEL LOADER (S/N JEE0155001 & AFTER), WHEEL LOADER - FRENCH ARMY, WHEEL LOADER TIER 3 NA/EU, MOTOR GRADER TIER I (BR) - ASN N8AF07000, WHEEL LOADER TIER 3 (NA/EU), GRADERS - FROM SN 105211 TO SN 105499, GRADERS - FROM SN 253000 TO SN 253999, GRADERS, MOTOR GRADER - TIER 3, MOTOR GRADER ASN N8AF06000, GRADERS - FROM SN 106500 TO SN 106999, GRADER - TIER 3 ITALIAN ARMY, GRADERS - FROM SN 107505 TO SN 107999, WHEEL LOADERS - FROM SN 292642 TO SN 292999, WHEEL LOADERS - FROM SN 295504 TO SN 295999, WHEEL LOADER (REV 05/2005), WHEEL LOADER, MOTOR GRADER ASN N8AF06000 (BRAZIL), VARIABLE POWER MOTOR GRADER ASN N8AF06000 (BR), WHEEL LOADER (BRAZIL), FIAT KOBELCO WHEEL LOADER, GREECE WHEEL LOADER, WHEEL LOADER - TIER 3 (BRAZIL), WHEEL LOADERS (EU), WHEEL LOADER (EU) (2008 VERSION), WHEEL LOADERS TIER 3 (EU) including models 1221E, 1221F, 621C, 721C, 721D, 721E, 821C, 821E, 845, 921C, 921E, F106.5, F106.5A, F106.6, F106.6A, F140, F156, F156.6, F156.6A, F156A, L20.5, L25.5, LW170.B, LW190.B, RG140.B.
Frequently asked questions
What is the part number?
The manufacturer part number is 8603343.
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.
- Manufacturer part number
- 8603343
- Internal SKU
- IC:8603343
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.0 lb
Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.
30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.
All 204 fitments
| Machine | Model | Years |
|---|---|---|
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER TIER 3 (EU) | 1221E | 2008 – 2013 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| WHEEL LOADER - TIER 4 (NA) | 1221F | 2013 – 2015 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 621C | 1999 – 2001 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER | 721C | 1999 – 2002 |
| CASE WHEEL LOADER - BRITISH ARMY | 721C | 1992 |
| CASE WHEEL LOADER - BRITISH ARMY | 721C | 1992 |
| CASE WHEEL LOADER | 721D | 2003 – 2006 |
| CASE WHEEL LOADER | 721D | 2003 – 2006 |
| CASE WHEEL LOADER | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER (NORTH AMERICA) | 721D | 2003 – 2006 |
| CASE WHEEL LOADER - EUROPE (N4HE03001- / XT N4HE06001-) | 721D | 2004 – 2006 |
| CASE WHEEL LOADER - EUROPE (N4HE03001- / XT N4HE06001-) | 721D | 2004 – 2006 |
| CASE WHEEL LOADER - EUROPE (N4HE03001- / XT N4HE06001-) | 721D | 2004 – 2006 |
| CASE WHEEL LOADER - EUROPE (N6HE03001- / XT N6HE06001-) | 721D | 2006 |
| CASE WHEEL LOADER - EUROPE (N6HE03001- / XT N6HE06001-) | 721D | 2006 |
| CASE WHEEL LOADER - EUROPE (N6HE03001- / XT N6HE06001-) | 721D | 2006 |
| ARTICULATED WHEEL LOADER (BRAZIL) | 721E | 2008 – 2016 |
| ARTICULATED WHEEL LOADER (BRAZIL) | 721E | 2008 – 2016 |
| CASE WHEEL LOADER TIER 3 (EU) | 721E | 2006 – 2011 |
| CASE WHEEL LOADER TIER 3 (EU) | 721E | 2006 – 2011 |
| CASE WHEEL LOADER TIER 3 (EU) | 721E | 2006 – 2011 |
| CASE WHEEL LOADER TIER 3 (EU) | 721E | 2006 – 2011 |
| WHEEL LOADER (EU) | 721E | 2009 – 2011 |
| WHEEL LOADER (EU) | 721E | 2009 – 2011 |
| WHEEL LOADER (EU) | 721E | 2009 – 2011 |
| WHEEL LOADER TIER 3 (NA) | 721E | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | 721E | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | 721E | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | 721E | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | 721E | 2006 – 2011 |
| CASE ARTICULATED WHEEL LOADER (BRAZIL) | 821C | 2000 – 2003 |
| CASE ARTICULATED WHEEL LOADER (BRAZIL) | 821C | 2000 – 2003 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155000 & BEFORE) | 821C | 2002 – 2006 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 821C | 2003 – 2007 |
| WHEEL LOADER - FRENCH ARMY | 821C | 2001 – 2002 |
| WHEEL LOADER - FRENCH ARMY | 821C | 2001 – 2002 |
| ARTICULATED WHEEL LOADER (BRAZIL) | 821E | 2008 – 2016 |
| ARTICULATED WHEEL LOADER (BRAZIL) | 821E | 2008 – 2016 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| WHEEL LOADER TIER 3 NA/EU | 821E | 2006 – 2011 |
| MOTOR GRADER TIER I (BR) - ASN N8AF07000 | 845 | 2008 – 2010 |
| MOTOR GRADER TIER I (BR) - ASN N8AF07000 | 845 | 2008 – 2010 |
| MOTOR GRADER TIER I (BR) - ASN N8AF07000 | 845 | 2008 – 2010 |
| MOTOR GRADER TIER I (BR) - ASN N8AF07000 | 845 | 2008 – 2010 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| CASE WHEEL LOADER (S/N JEE0155001 & AFTER) | 921C | 1999 – 2007 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| WHEEL LOADER TIER 3 (NA/EU) | 921E | 2007 – 2011 |
| GRADERS - FROM SN 105211 TO SN 105499 | F106.5 | 2001 – 2005 |
| GRADERS - FROM SN 105211 TO SN 105499 | F106.5 | 2001 – 2005 |
| GRADERS - FROM SN 105211 TO SN 105499 | F106.5 | 2001 – 2005 |
| GRADERS - FROM SN 253000 TO SN 253999 | F106.5A | 2002 – 2005 |
| GRADERS - FROM SN 253000 TO SN 253999 | F106.5A | 2002 – 2005 |
| GRADERS - FROM SN 253000 TO SN 253999 | F106.5A | 2002 – 2005 |
| GRADERS | F106.6 | 2005 – 2007 |
| GRADERS | F106.6 | 2005 – 2007 |
| GRADERS | F106.6 | 2005 – 2007 |
| MOTOR GRADER - TIER 3 | F106.6 | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F106.6 | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F106.6 | 2008 – 2009 |
| GRADERS | F106.6A | 2005 – 2009 |
| GRADERS | F106.6A | 2005 – 2009 |
| GRADERS | F106.6A | 2005 – 2009 |
| MOTOR GRADER - TIER 3 | F106.6A | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F106.6A | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F106.6A | 2008 – 2009 |
| MOTOR GRADER ASN N8AF06000 | F140 | 1980 – 1996 |
| MOTOR GRADER ASN N8AF06000 | F140 | 1980 – 1996 |
| MOTOR GRADER ASN N8AF06000 | F140 | 1980 – 1996 |
| MOTOR GRADER ASN N8AF06000 | F140 | 1980 – 1996 |
| MOTOR GRADER ASN N8AF06000 | F140 | 1980 – 1996 |
| GRADERS - FROM SN 106500 TO SN 106999 | F156 | 1991 – 2005 |
| GRADERS - FROM SN 106500 TO SN 106999 | F156 | 1991 – 2005 |
| GRADERS - FROM SN 106500 TO SN 106999 | F156 | 1991 – 2005 |
| GRADERS | F156.6 | 2005 – 2009 |
| GRADERS | F156.6 | 2005 – 2009 |
| GRADERS | F156.6 | 2005 – 2009 |
| MOTOR GRADER - TIER 3 | F156.6 | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F156.6 | 2008 – 2009 |
| MOTOR GRADER - TIER 3 | F156.6 | 2008 – 2009 |
| GRADER - TIER 3 ITALIAN ARMY | F156.6A | 2009 – 2010 |
| GRADER - TIER 3 ITALIAN ARMY | F156.6A | 2009 – 2010 |
| GRADERS | F156.6A | 2005 – 2007 |
| GRADERS | F156.6A | 2005 – 2007 |
| GRADERS | F156.6A | 2005 – 2007 |
| MOTOR GRADER - TIER 3 | F156.6A | 2007 – 2009 |
| MOTOR GRADER - TIER 3 | F156.6A | 2007 – 2009 |
| MOTOR GRADER - TIER 3 | F156.6A | 2007 – 2009 |
| GRADERS - FROM SN 107505 TO SN 107999 | F156A | 2002 – 2005 |
| GRADERS - FROM SN 107505 TO SN 107999 | F156A | 2002 – 2005 |
| GRADERS - FROM SN 107505 TO SN 107999 | F156A | 2002 – 2005 |
| WHEEL LOADERS - FROM SN 292642 TO SN 292999 | L20.5 | 1999 – 2004 |
| WHEEL LOADERS - FROM SN 292642 TO SN 292999 | L20.5 | 1999 – 2004 |
| WHEEL LOADERS - FROM SN 295504 TO SN 295999 | L25.5 | 2000 – 2004 |
| WHEEL LOADERS - FROM SN 295504 TO SN 295999 | L25.5 | 2000 – 2004 |
| WHEEL LOADER (REV 05/2005) | LW170.B | 2003 – 2006 |
| WHEEL LOADER (REV 05/2005) | LW170.B | 2003 – 2006 |
| WHEEL LOADER (REV 05/2005) | LW170.B | 2003 – 2006 |
| WHEEL LOADER (REV 05/2005) | LW170.B | 2003 – 2006 |
| WHEEL LOADER | LW190.B | 2002 – 2006 |
| WHEEL LOADER | LW190.B | 2002 – 2006 |
| WHEEL LOADER | LW190.B | 2002 – 2006 |
| WHEEL LOADER | LW190.B | 2002 – 2006 |
| MOTOR GRADER ASN N8AF06000 (BRAZIL) | RG140.B | 1998 – 2010 |
| MOTOR GRADER ASN N8AF06000 (BRAZIL) | RG140.B | 1998 – 2010 |
| VARIABLE POWER MOTOR GRADER ASN N8AF06000 (BR) | RG140.B VP | 2008 – 2010 |
| VARIABLE POWER MOTOR GRADER ASN N8AF06000 (BR) | RG140.B VP | 2008 – 2010 |
| WHEEL LOADER (BRAZIL) | W160 | 2006 – 2007 |
| WHEEL LOADER (BRAZIL) | W160 | 2006 – 2007 |
| WHEEL LOADER | W170 | 2000 – 2007 |
| WHEEL LOADER | W170 | 2000 – 2007 |
| WHEEL LOADER | W170 | 2000 – 2007 |
| FIAT KOBELCO WHEEL LOADER | W170 EVOLUTION | 2003 – 2004 |
| FIAT KOBELCO WHEEL LOADER | W170 EVOLUTION | 2003 – 2004 |
| FIAT KOBELCO WHEEL LOADER | W170 EVOLUTION | 2003 – 2004 |
| WHEEL LOADER (BRAZIL) | W170B | 2007 – 2016 |
| WHEEL LOADER (BRAZIL) | W170B | 2007 – 2016 |
| WHEEL LOADER (EU) | W170B | 2009 – 2011 |
| WHEEL LOADER (EU) | W170B | 2009 – 2011 |
| WHEEL LOADER (EU) | W170B | 2009 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W170B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W170B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W170B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W170B | 2006 – 2011 |
| WHEEL LOADER | W170B EU | 2006 – 2011 |
| WHEEL LOADER | W170B EU | 2006 – 2011 |
| WHEEL LOADER | W170B EU | 2006 – 2011 |
| FIAT KOBELCO WHEEL LOADER | W170PL EVOLUTION | 2004 |
| FIAT KOBELCO WHEEL LOADER | W170PL EVOLUTION | 2004 |
| WHEEL LOADER | W170TC | 2005 – 2007 |
| WHEEL LOADER | W170TC | 2005 – 2007 |
| WHEEL LOADER | W170TC | 2005 – 2007 |
| WHEEL LOADER | W190 | 2005 – 2007 |
| WHEEL LOADER | W190 | 2005 – 2007 |
| WHEEL LOADER | W190 | 2005 – 2007 |
| GREECE WHEEL LOADER | W190 EVOL | 2003 – 2007 |
| GREECE WHEEL LOADER | W190 EVOL | 2003 – 2007 |
| FIAT KOBELCO WHEEL LOADER | W190 EVOLUTION | 2002 – 2004 |
| FIAT KOBELCO WHEEL LOADER | W190 EVOLUTION | 2002 – 2004 |
| FIAT KOBELCO WHEEL LOADER | W190 EVOLUTION | 2002 – 2004 |
| WHEEL LOADER (BRAZIL) | W190B | 2007 – 2016 |
| WHEEL LOADER (BRAZIL) | W190B | 2007 – 2016 |
| WHEEL LOADER - TIER 3 (BRAZIL) | W190B | 2017 – 2022 |
| WHEEL LOADER - TIER 3 (BRAZIL) | W190B | 2017 – 2022 |
| WHEEL LOADER TIER 3 (NA) | W190B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W190B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W190B | 2006 – 2011 |
| WHEEL LOADER TIER 3 (NA) | W190B | 2006 – 2011 |
| WHEEL LOADERS (EU) | W190B | 2006 – 2011 |
| WHEEL LOADERS (EU) | W190B | 2006 – 2011 |
| WHEEL LOADERS (EU) | W190B | 2006 – 2011 |
| WHEEL LOADER | W190B E.I. | 1998 – 2001 |
| WHEEL LOADER | W190B E.I. | 1998 – 2001 |
| WHEEL LOADER (EU) (2008 VERSION) | W190BLR | 2008 – 2011 |
| WHEEL LOADER (EU) (2008 VERSION) | W190BLR | 2008 – 2011 |
| WHEEL LOADER (EU) (2008 VERSION) | W190BLR | 2008 – 2011 |
| WHEEL LOADER (BRAZIL) | W200 | 2005 – 2007 |
| WHEEL LOADER (BRAZIL) | W200 | 2005 – 2007 |
| WHEEL LOADERS TIER 3 (EU) | W270B | 2007 – 2008 |
| WHEEL LOADERS TIER 3 (EU) | W270B | 2007 – 2008 |
| WHEEL LOADERS TIER 3 (EU) | W270B | 2007 – 2008 |
| WHEEL LOADERS TIER 3 (EU) | W270B | 2007 – 2008 |
| WHEEL LOADER (EU) (2008 VERSION) | W270BLR | 2005 – 2007 |
| WHEEL LOADER (EU) (2008 VERSION) | W270BLR | 2005 – 2007 |
| WHEEL LOADER (EU) (2008 VERSION) | W270BLR | 2005 – 2007 |
| WHEEL LOADER (EU) (2008 VERSION) | W270BLR | 2005 – 2007 |