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Identify the engine. Keep the conditions.

4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975) — bearing reference

Look up source-listed Clevite engine bearing parts, their engine/year conditions, set relationships and available shop dimensions. Preserve the engine version and catalogue notes before comparing a candidate.

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Selections apply immediately; the button also works without JavaScript. Use a full engine code or part number. Displacement alone can match several different engine families.

2026 manufacturer catalogue, not a universal fitment promise

Source: MAHLE/Clevite EB-20-26 engine-bearing catalogue. Entries retain the catalogue make section, application conditions and printed page. A make heading groups source applications; it is not proof that every engine listed was manufactured by that vehicle brand.

Numbers are Clevite references, not SKF/NTN cross-references. A set, a member shell and a separate thrust washer are different items. Unresolved or conflicting dimensions remain unavailable instead of being guessed.

Source-listed bearing records

5 records

Full source application context

4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Catalogue section: GMC · Engine block 86. Match the code, year/VIN limits and each part's additional notes.

Shop dimensions are inches, including rows for metric engines. These are standard-size source dimensions, not permission to use a listed oil clearance in a different engine.

Camshaft

SH-399S

Camshaft Bearing B-1

Application: GMC · block 86
4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Source-listed set members: SH399 SH400 . Open each member's dimensions and position notes; these are identifiers, not inferred quantities.

Catalogue conditions / continuation notes

Set

Numerical dimensions not resolved for this entry. A complete consistent five-column row is not available here. Do not borrow values from a neighbouring part or package.

MAHLE/Clevite EB-20-26 · printed page 596 · reference a6e58ac3. No installation torque or machining approval is implied.

Camshaft

SH399

Camshaft set member

Application: GMC · block 86
4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Member of set: SH-399S. The member identifier is not automatically a complete set.

Catalogue conditions / continuation notes

Set

Standard shaft diameter
1.8682–1.8692 in
Vertical oil clearance
0.0005–0.0050 in
Maximum wall at crown
0.0697 in
Bearing OD or housing bore
2.0090–2.0110 in
Maximum axial length
0.8700 in

MAHLE/Clevite EB-20-26 · printed page 596 · reference a5eb8974. No installation torque or machining approval is implied.

Camshaft

SH400

Camshaft set member

Application: GMC · block 86
4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Member of set: SH-399S. The member identifier is not automatically a complete set.

Catalogue conditions / continuation notes

For Years: 1966-1970

Set

Standard shaft diameter
1.8682–1.8692 in
Vertical oil clearance
0.0010–0.0050 in
Maximum wall at crown
0.0647 in
Bearing OD or housing bore
1.9990–2.0110 in
Maximum axial length
0.8700 in

MAHLE/Clevite EB-20-26 · printed page 596 · reference a4098b7f. No installation torque or machining approval is implied.

Camshaft

SH-718S

Camshaft Bearing AL-3

Application: GMC · block 86
4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Source-listed set members: SH400 . Open each member's dimensions and position notes; these are identifiers, not inferred quantities.

Catalogue conditions / continuation notes

Set

Numerical dimensions not resolved for this entry. A complete consistent five-column row is not available here. Do not borrow values from a neighbouring part or package.

MAHLE/Clevite EB-20-26 · printed page 596 · reference 89061fdf. No installation torque or machining approval is implied.

Camshaft

SH400

Camshaft set member

Application: GMC · block 86
4.1L 250 CID OHV 12V L6 General Motors (1966-1970) 4.1L 250 CID OHV 12V L6 General Motors (1971, 1975)

Member of set: SH-718S. The member identifier is not automatically a complete set.

Catalogue conditions / continuation notes

For Years: 1971, 1975

Set

Numerical dimensions not resolved for this entry. A complete consistent five-column row is not available here. Do not borrow values from a neighbouring part or package.

MAHLE/Clevite EB-20-26 · printed page 596 · reference 1ae64c79. No installation torque or machining approval is implied.

Use the reference correctly

Identify before comparing

Keep engine code, production year, VIN qualifiers, bearing position and the existing shell markings. A 350, 1.8 or 4.6 label is not a unique engine identification.

Measure the actual assembly

Standard journal dimensions do not describe a worn or reground shaft. Verify the installed housing, required repair size and oil clearance with the engine-specific procedure.

Keep unresolved values unresolved

Empty dimensional fields can reflect set-only entries, incomplete source rows or conflicts. They do not mean zero clearance, and another entry's values are not a substitute.

Read the oil-clearance, material and installation reference →Check replacement evidence →Separate wheel, hub and seal vehicle reference →

Reference basis and limitations

This independent lookup reorganises factual entries from the 2026 MAHLE/Clevite engine-bearing catalogue. The original source fingerprint, extraction record and application block are retained privately. The catalogue source is not a guarantee of current stock, current vehicle approval or complete coverage of every engine. BearingScope does not sell these parts or provide a rebuild service.

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