Sealed Power 884M main bearing set for the 1954-1955 Ford F-250 V8 3.9L, the 1956-1957 F-250 V8 4.4L, the 1958-1964 F-250 V8 4.8L and other vehicles supports the crankshaft as it turns. This set of Sealed Power main bearings, also called crankshaft main bearings, sits between the crankshaft journals and the engine block.
- Sealed Power Vintage line for classic engine rebuilds
- Steel-backed bronze alloy lining with overplate
- Bronze alloy lining popular for fatigue resistance and strength, with the conformability older applications need
- State-of-the-art manufacturing with exacting tolerances
Quick facts
- Part: Sealed Power 884M main bearing set
- Also called: crankshaft main bearings
- Fits: the 1954-1955 Ford F-250 V8 3.9L, the 1956-1957 F-250 V8 4.4L, the 1958-1964 F-250 V8 4.8L and other vehicles
- Material: Steel backed overplated bronze alloy
- Condition: New
A knock from the lower engine, low oil pressure or metal flecks in the oil can mean worn main bearings. These signs alone do not prove the bearings are the problem, since a weak oil pump can also lower oil pressure.
Fits
The 1954-1955 Ford F-100 V8 3.9L, the 1956-1957 F-100 V8 4.4L, the 1958-1964 F-100 V8 4.8L, the 1954-1955 F-350 V8 3.9L, the 1956-1957 F-350 V8 4.4L and the 1958-1964 F-350 V8 4.8L also fit this set, along with many other vehicles. The set meets or exceeds OEM specifications. If your own year and engine are not named here, look them up in the "Vehicles it fits" section.
Specifications
- Quantity per application: 1
- Material: Steel backed overplated bronze alloy
- Condition: New
- Country of origin: Mexico
In the box
One main bearing set. Each vehicle takes one set.
Interchange: MS178P · MS622P · 5M1802 · MB583AM · MBS349CP · MBS352B · 784P · MS1575PA · VP312 · VPM312
This part cross-references / interchanges with the following part numbers:
MS178P, MS622P, 5M1802, MB583AM, MBS349CP, MBS352B, 784P, MS1575PA, VP312, VPM312
Frequently Asked Questions
Does the Sealed Power 884M fit the 1958-1964 Ford F-250 V8 4.8L?
Yes. The Sealed Power 884M main bearing set fits the 1958-1964 Ford F-250 V8 4.8L, and that engine takes one set. For any other vehicle, look it up in the "Vehicles it fits" section.
What is the lining of this Sealed Power main bearing set made of?
The Sealed Power 884M has a steel-backed bronze alloy lining with overplate. This construction is popular for fatigue resistance and strength.
Is the 884M part of the Sealed Power Vintage line?
Yes. Sealed Power Vintage components cover applications over 35 years old, and this main bearing set is made with exacting tolerances.
Can knocking from the bottom of the engine mean worn main bearings?
Yes, a knock from the lower engine can be a sign of worn main bearings, along with low oil pressure or metal in the oil. Have it checked promptly rather than driving on it.
Does the Sealed Power 884M replace MS178P?
Yes. MS178P is one of the numbers listed as interchanging with the Sealed Power 884M main bearing set, along with MS622P and 5M1802.
