1MS509
Radiator cap cover (Fleetline and Super series) for Oliver Super 66, Super 77, Super 88, 66 and 4 more
Original part (OEM)
Not checked yet
PorkForge replacement
Not made yet
Part facts
- Original part number
- 1MS509R1
- Manufacturer
- Oliver
- Part type
- Covers and lids
- System
- Engine and fuel
- Notes
- Cover listed in the cooling-system section for Oliver 66, 77, 88, Super 66, Super 77, Super 88 and 660 tractors and the OC-6 crawler. A new version is offered at about $92, which is high for a small cover. The listing gives no shape, size or material and does not say where it sits; if it covers the radiator filler it will run hot, so heat exposure must be checked before PLA or PETG is considered.
- Last reviewed
- Oct 27, 2026 · record pf-ac-0014
Dimensions How to measure this part
Fits these machines
| Model | Years | Notes | Evidence |
|---|---|---|---|
| Oliver Super 66 | Not recorded | — | Reported 1 |
| Oliver Super 77 | Not recorded | — | Reported 1 |
| Oliver Super 88 | Not recorded | — | Reported 1 |
| Oliver 66 | Not recorded | — | Reported 1 |
| Oliver 77 | Not recorded | — | Reported 1 |
| Oliver 88 | Not recorded | — | Reported 1 |
| Oliver 660 | Not recorded | — | Reported 1 |
| Oliver OC6 | Not recorded | — | Reported 1 |
Where to find one today
| Source | Condition | Price | Stock | Checked |
|---|---|---|---|---|
| All States Ag Parts (tractorpartsasap.com) 1 | New, aftermarket | $91.79 | Not stated | Oct 27, 2026 |
Why it is hard to get
- Market evidence: New version priced at $91.79 for a small cover on 27 Oct 2026; no used alternative was linked. 1
Can this part be made again?
Under reviewPhysical replacement
Cooling-system cover: likely heat-exposed above PLA's limit (about 55 degrees C) and possibly PETG's; needs a heat check. A metal casting from another fabricator may suit better.
Under reviewSTL / FreeCAD file
Not decided yet.
Sources
- Radiator Cap Cover fits Oliver Super 66 Super 77 Super 88 66 77 88 660 OC6 1MS509
- Oliver 77 Cooling (All States Ag Parts category page)
Not affiliated with or endorsed by Oliver or its successors. The name is used only to identify compatibility. Part numbers are shown for reference. Check fit against your own machine. Spot a mistake?
Verification checklist (3 of 8 met)
- ✕ OEM part number not yet verified from an OEM or dealer source
- ✕ Cited by one website only, and not an OEM or dealer source
- ✓ At least one compatible model with a source
- ✕ 1 kinds of fact beyond the name (aftermarket prices); 3 needed
- ✕ Original availability not yet checked
- ✓ Text and title are distinct
- ✓ No editorial hold
- ✕ Not yet reviewed and signed off for search
Related parts
| Part no. | Part | Make | Fits | Original | PorkForge | Sources |
|---|---|---|---|---|---|---|
| 1K805 | Tool box cover (lid), Fleetline and Super series | Oliver | Super 66, Super 77, Super 88, 66, 77 +4 more | Not checked | Research only | 2 |
| 1KS876 | Tool box (Fleetline and Super series, 660 to 880) | Oliver | Super 66, Super 77, Super 88, 66, 77 +4 more | Not checked | Research only | 2 |
| 1KS1208 | PTO shield (Fleetline and Super series, 660 to 880) | Oliver | Super 66, Super 77, Super 88, 66, 77 +4 more | Not checked | Not eligible | 2 |
| 1E1082 | Steering wheel cap (Fleetline and Super series) | Oliver | Super 55, Super 66, Super 77, Super 88, 60 +5 more | Not checked | Research only | 2 |
| 1K1261A | Light bracket (Fleetline and Super series) | Oliver | Super 77, Super 88, 66, 77, 88 +2 more | Not checked | Research only | 2 |
| 101431AA | Steering wheel cap, manual steering (550 to 1950) | Oliver | 550, 660, 770, 880, 950 +12 more | Not checked | Research only | 2 |
| 102307A | Lever knob, 3/8-24 (gear shift, hydraulic, PTO, throttle) | Oliver | 660, 770, 880, 950, 990 +11 more | Not checked | Research only | 2 |