OEM Back-Up Ring · Case Construction
S99877$6.05
In stock
Case Construction
OEM
Part No. 1637351
Plug Hex Socket
307 verified fitments
Select your machine to check fit
Ships nationwideUPS, USPS & freight
30-day returnsNew, unused parts
OEM guaranteedDirect from manufacturer
| Machine | Model | Years / S/N |
|---|---|---|
| Tractor | PUMA 165 | 2026 |
| Tractor | FARMALL 110 U | — |
| Tractor | MAXXUM 115 | 2022 |
| Tractor | MAXXUM 125 | 2022 |
| Tractor | MAXXUM 135 | 2022 |
| Tractor | MAXXUM 145 | 2022 |
| Tractor | MAXXUM 150 | 2022 |
| Tractor | OPTUM 270 | 2023 |
| Tractor | OPTUM 300 | 2023 |
| Tractor | PUMA 185 | 2022 |
OEM Plug Hex Socket Plug M10 X 1 X 12.3Mm L W/ Ed Seal Assembly #1637351 - OEM Sealing Component for Heavy Equipment Repair Repair work involving oil leaks, dust intrusion, and failed sealing surfaces often calls for a direct-fit OEM part like this one to address failed seals, housing leaks, and loss of fluid containment. Commonly sourced for oil leak repair, o-ring replacement, and Case equipment gasket service needs on heavy equipment.
More Details
Part Number: 1637351
Application: Repair application: OEM sealing component for maintenance work involving oil seepage, gasket failure, or leak-related equipment service.
Key Features:
- OEM replacement for worn seals, failed gaskets, or damaged sealing points
- Helps restore fluid containment and protect against contamination entry
- Direct-fit service part for leak repair and routine maintenance replacement
Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering
Replaces: Refer to manufacturer cross-reference if applicable
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- 1637351
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 0.02 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 307 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Tractor | PUMA 165 | 2026 |
| Tractor | FARMALL 110 U | — |
| Tractor | MAXXUM 115 | 2022 |
| Tractor | MAXXUM 125 | 2022 |
| Tractor | MAXXUM 135 | 2022 |
| Tractor | MAXXUM 145 | 2022 |
| Tractor | MAXXUM 150 | 2022 |
| Tractor | OPTUM 270 | 2023 |
| Tractor | OPTUM 300 | 2023 |
| Tractor | PUMA 185 | 2022 |
| Tractor | OPTUM 340 | 2023 |
| Tractor | PUMA 200 | 2022 |
| Tractor | PUMA 220 | 2022 |
| Tractor | PUMA 240 | 2022 |
| Tractor | VESTRUM 100 | 2023 |
| Tractor | PUMA 260 | 2022 |
| Tractor | VESTRUM 120 | 2023 |
| Tractor | VESTRUM 110 | 2023 |
| Tractor | VESTRUM 130 | 2023 |
| Tractor | PUMA 155 | 2025 |
| Tractor | PUMA 220 | 2023 |
| Tractor | PUMA 200 | 2023 |
| Tractor | PUMA 185 | 2023 |
| Tractor | OPTUM 390 | 2026 |
| Tractor | OPTUM 360 | 2026 |
| Tractor | PUMA 185 | 2026 |
| Tractor | PUMA 155 | 2026 |
| Tractor | PUMA 185 | 2025 |
| Tractor | PUMA 165 | 2025 |
| Tractor | FARMALL 120M | 2026 |
| Tractor | FARMALL 110M | 2026 |
| Tractor | FARMALL 100M | 2026 |
| Tractor | OPTUM 440 | 2026 |
| Tractor | QUANTUM 120N | — |
| Tractor | FARMALL 100N | — |
| Tractor | FARMALL 100CL | — |
| Tractor | FARMALL 110CL | — |
| Tractor | QUANTUM 120V | — |
| Tractor | FARMALL 100V | — |
| Tractor | FARMALL 110V | — |
| Tractor | FARMALL 110N | — |
| Tractor | FARMALL 80CL | — |
| Tractor | FARMALL 120V | — |
| Tractor | FARMALL 120N | — |
| Tractor | FARMALL 120CL | — |
| Tractor | FARMALL 80N | — |
| Tractor | FARMALL 90CL | — |
| Tractor | FARMALL 80V | — |
| Tractor | FARMALL 90V | — |
| Tractor | FARMALL 90N | — |
| Tractor | QUANTUM 110N | — |
| Tractor | QUANTUM 110F | — |
| Tractor | QUANTUM 100V | — |
| Tractor | QUANTUM 100N | — |
| Tractor | QUANTUM 100F | — |
| Tractor | QUANTUM 100CL | — |
| Tractor | QUANTUM 80N | — |
| Tractor | QUANTUM 80F | — |
| Tractor | QUANTUM 80CL | — |
| Tractor | QUANTUM 120F | — |
| Tractor | QUANTUM 120CL | — |
| Tractor | QUANTUM 110V | — |
| Tractor | QUANTUM 110CL | — |
| Tractor | QUANTUM 90V | — |
| Tractor | QUANTUM 90N | — |
| Tractor | QUANTUM 90F | — |
| Tractor | QUANTUM 90CL | — |
| Tractor | QUANTUM 80V | — |
| Tractor | FARMALL 90A | 2025 |
| Tractor | FARMALL 100A | — |
| Tractor | FARMALL 110A | — |
| Tractor | FARMALL 120C | 2025 |
| Tractor | FARMALL 110C | 2025 |
| Tractor | FARMALL 100C | 2025 |
| Tractor | FARMALL 90A | — |
| Tractor | FARMALL 110A | 2025 |
| Tractor | FARMALL 100A | 2025 |
| Tractor | FARMALL 90C | 2024 |
| Tractor | FARMALL 120C | 2024 |
| Tractor | FARMALL 110C | 2024 |
| Tractor | FARMALL 100C | 2024 |
| Tractor | FARMALL 120A | 2025 |
| Tractor | 4130 EXPERT | 2023 |
| Tractor | 4125 PROFI | — |
| Tractor | 4120 EXPERT | 2023 |
| Tractor | 4115 PROFI | — |
| Tractor | 4110 EXPERT | 2023 |
| Tractor | 6150 PROFI | 2022 |
| Tractor | 4145 PROFI | — |
| Tractor | 4140 EXPERT | 2023 |
| Tractor | 4135 PROFI | — |
| Tractor | 6340 TERRUS CVT | 2023 |
| Tractor | 6315 TERRUS CVT | 2023 |
| Tractor | 6300 TERRUS CVT | — |
| Tractor | 6290 TERRUS CVT | 2023 |
| Tractor | WORKMASTER 90 PLUS | 2025 |
| Tractor | T5.110 | — |
| Tractor | T5.100S | — |
| Tractor | T5.100 | — |
| Tractor | POWERSTAR 100 | 2025 |
| Tractor | T5.110 | 2023 |
| Tractor | T5.120 | — |
| Tractor | T5.110S | — |
| Tractor | T5.120 | 2023 |
| Tractor | T5.140 | 2023 |
| Tractor | T5.130 | 2023 |
| Tractor | T6.125S | — |
| Tractor | T5.90S | — |
| Tractor | T6.145 | 2022 |
| Tractor | T6.155 | 2022 |
| Tractor | T6.160 | 2022 |
| Tractor | T6.165 | 2022 |
| Tractor | T6.175 | 2022 |
| Tractor | T6.180 | — |
| Tractor | T7.195S | — |
| Tractor | T6.180 | 2022 |
| Tractor | T7.230 | — |
| Tractor | T7.215S | — |
| Tractor | T7.245 | — |
| Tractor | T7.260 | — |
| Tractor | T7.270 | 2022 |
| Tractor | T7.260 | 2022 |
| Tractor | T7.290 | — |
| Tractor | T7.300 | 2022 |
| Tractor | T7.290 HD | 2023 |
| Tractor | T7.275 HD | 2023 |
| Tractor | T7.340 HD | 2023 |
| Tractor | T7.315 HD | 2023 |
| Tractor | T7.315 | — |
| Tractor | T7.230 | 2023, 2022 |
| Tractor | POWERSTAR 110 | 2025 |
| Tractor | T7.245 | 2022 |
| Tractor | T7.260 | 2023 |
| Tractor | T7.245 | 2023 |
| Tractor | POWERSTAR 120 | 2025, 2024 |
| Tractor | POWERSTAR 110 | 2024 |
| Tractor | POWERSTAR 100 | 2024 |
| Tractor | POWERSTAR 90 | 2024 |
| Tractor | T7.180 | 2026 |
| Tractor | T7.225 | 2025 |
| Tractor | T7.210 | 2025 |
| Tractor | T7.190 | 2025 |
| Tractor | T7.180 | 2025 |
| Tractor | POWERSTAR 110 | 2026 |
| Tractor | T7.440 XD | 2026 |
| Tractor | T7.390 XD | 2026 |
| Tractor | T7.360 XD | 2026 |
| Tractor | T7.225 | 2026 |
| Tractor | T7.210 | 2026 |
| Tractor | T7.190 | 2026 |
| Tractor | WORKMASTER 120 PLUS | 2025 |
| Tractor | WORKMASTER 110 PLUS | 2025 |
| Tractor | WORKMASTER 100 PLUS | 2025 |
| Tractor | T5.120 | 2026 |
| Tractor | T5.110 | 2026 |
| Tractor | T5.100 | 2026 |
| Tractor | POWERSTAR 120 | 2026 |
| Tractor | T4.100F | — |
| Tractor | T4.100LP | — |
| Tractor | T4.100V | — |
| Tractor | T4.100N | — |
| Tractor | T4.110F | — |
| Tractor | T4.110N | — |
| Tractor | T4.110LP | — |
| Tractor | T4.120F | — |
| Tractor | T4.110V | — |
| Tractor | T4.80F | — |
| Tractor | T4.120V | — |
| Tractor | T4.120N | — |
| Tractor | T4.120LP | — |
| Tractor | T4.80LP | — |
| Tractor | T4.80V | — |
| Tractor | T4.80N | — |
| Tractor | T4.90F | — |
| Tractor | T4.90V | — |
| Tractor | T4.90N | — |
| Tractor | T4.90LP | — |
| Tractor | OPTUM 250 | — |
| Tractor | 6270 TERRUS CVT | — |
| Tractor | 6250 TERRUS CVT | — |
| Tractor | T6.165 | — |
| Tractor | T7.275 | — |
| Loader | 221F | — |
| Loader | 321F | — |
| Loader | W80C | — |
| Tractor | OPTUM 300 CVX | — |
| Tractor | OPTUM 300 CVT | — |
| Tractor | FARMALL 110U | — |
| Tractor | 6145 PROFI | — |
| Tractor | T7.275 HD | — |
| Tractor | T7.290 HD | — |
| Tractor | T7.315 HD | — |
| Tractor | FARMALL 100N | 2018 |
| Tractor | FARMALL 110N | 2018 |
| Tractor | T4.110F | 2018 |
| Tractor | T4.100V | 2018 |
| Tractor | T4.90V | 2018 |
| Tractor | T4.100F | 2018 |
| Tractor | T4.110V | 2018 |
| Tractor | T4.80V | 2018 |
| Tractor | QUANTUM 110N | 2018 |
| Tractor | T4.110LP | 2018 |
| Tractor | T4.100LP | 2018 |
| Tractor | T4.90F | 2018 |
| Tractor | FARMALL 80V | 2018 |
| Tractor | FARMALL 80N | 2018 |
| Tractor | T4.80F | 2018 |
| Tractor | T4.90LP | 2018 |
| Tractor | FARMALL 110CL | 2018 |
| Tractor | T4.80LP | 2018 |
| Tractor | FARMALL 90N | 2018 |
| Tractor | FARMALL 120U | — |
| Tractor | FARMALL 100CL | 2018 |
| Tractor | OPTUM 300 CVT | 2018 |
| Tractor | FARMALL 110V | 2018 |
| Tractor | FARMALL 80CL | 2018 |
| Tractor | FARMALL 90V | 2018 |
| Tractor | MAXXUM 150 | 2018 |
| Tractor | FARMALL 90CL | 2018 |
| Tractor | MAXXUM 125 | 2018 |
| Tractor | T6.155 | 2018 |
| Tractor | FARMALL 120 U | — |
| Tractor | T6.180 | 2018 |
| Tractor | T6.145 | 2018 |
| Tractor | FARMALL 100V | 2018 |
| Tractor | T6.125 | 2018 |
| Tractor | T6.165 | 2018 |
| Loader | W70C | — |
| Tractor | MAXXUM 115 | 2018 |
| Tractor | MAXXUM 135 | 2018 |
| Tractor | MAXXUM 145 | 2018 |
| Tractor | T6.160 | 2018 |
| Tractor | PUMA 220 | 2018 |
| Tractor | T7.245 | 2018 |
| Tractor | T7.260 | 2018 |
| Tractor | T6.175 | 2018 |
| Tractor | T7.270 | 2018 |
| Tractor | T7.315 | 2018 |
| Tractor | PUMA 185 | 2018 |
| Tractor | PUMA 200 CVT | 2018 |
| Tractor | PUMA 220 CVT | 2018 |
| Tractor | PUMA 185 CVT | 2018 |
| Tractor | T7.290 | 2018 |
| Tractor | PUMA 240 CVT | 2018 |
| Tractor | PUMA 200 | 2018 |
| Tractor | T7.230 | 2018 |
| Tractor | OPTUM 270 CVT | 2018 |
| Tractor | T7.195S | 2018 |
| Tractor | PUMA 185 CVT | — |
| Tractor | PUMA 200 CVT | — |
| Tractor | PUMA 240 CVT | — |
| Tractor | PUMA 220 CVT | — |
| Tractor | T7.215S | 2018 |
| Tractor | OPTUM 270 CVT | — |
| Loader | W80BTC | — |
| Loader | 321E SERIES 3 | — |
| Loader | 121E SERIES 3 | — |
| Loader | 21E SERIES 3 | — |
| Loader | 221E SERIES 3 | — |
| Loader | W70BTC | — |
| Loader | W50BTC | — |
| Loader | W60BTC | — |
| Loader | W50TC | — |
| Loader | W80TC | — |
| Loader | 121E | — |
| Loader | 221E | — |
| Loader | 321E | — |
| Loader | 21E | — |
| Loader | 221D | — |
| Loader | 21D | — |
| Loader | 321D | — |
| Loader | LW80.B | — |
| Loader | LW50.B | — |
| Excavator | EC600 | — |
| Excavator | EC450 | — |
| Excavator | EC350LC | — |
| Excavator | EC215LC | — |
| Excavator | EC270 | — |
| Excavator | EC160 | — |
| Excavator | EW160 | — |
| Loader | LW50 | — |
| Excavator | EC130 | — |
| Excavator | EW220 | — |
| Excavator | EW200 | — |
| Excavator | EC215 | — |
| Excavator | EC350 | — |
| Excavator | EC240 | — |
| Loader | LW80 | — |
| Excavator | 125B | — |
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