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Crankshaft And Flywheel fit your 1981 Ford F-250 8 Cyl 6.6L 4-Speed Manual Transmission
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1981 Ford F-250
Change VehicleVehicle Options
8 Cyl 6.6L; 4-Speed Manual TransmissionVehicle Options
8 Cyl 6.6L; 4-Speed Manual TransmissionCategories Close X
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Engine
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Recommended
Part No. & Part Description
Price & Qty.
Part No. &
Part Description
Part Description
- PULLEY IDENTIFICATION CHART
$173.33 $118.561 
- GEAR (FLYWHEEL RING)
$71.63 $52.421 
EAD-6397-B
DOWEL (CYLINDER BLOCK)Sleeve - Guide- To flywheel housing
to flywheel housing - 1/2" x 1"
to flywheel housing-1/2" x 1 - Require Quantity: 2
- Package Quantity: 4
- Base Number: 6397
- Callout Name: 6397
$2.90 $2.044
- BOLT (CRANKSHAFT MAIN BEARING CAP)
D9HZ-6345-A
Bolt- Stud-3/8" - 16-1/2"-13 x 5"-hex shoulder- also attaches oil pump screen tube and cover assy.
- Base Number: 6345
- Callout Name: 6345
$34.42 $24.162 
C2OZ-6345-A
Bolt - Bearing Cap- 2/W/D , 7/16"-14 x 3 5/32"
4/W/D exc. No. 3 cap-R.H. side. , 7/16"-14 x 3 5/32"
7/16"-14 x 3 5/32" -hex. head-7/16" - Require Quantity: 13
- Package Quantity: 1
- Callout Name: 6345
- C6TZ-6345-C
Bolt - Bearing Cap - Hex. Head- 4/W/D No. 3 cap-R.H. side
Stud (attach oil pump screen to bearing cap)- 3/8"-16 x 7/16"-14 x 4 3/32" - Base Number: 6345
- Callout Name: 6345
-388907-S
SPROCKET (CRANKSHAFT)Key- (LL-17-A)-key (sprocket to crankshaft) , STANDARD PART
- Callout Name: 6306
- Replaced By: F6ZZ-6B316-A
$14.58 $10.246
- FLYWHEEL ASSY.
D5TZ-6375-A
Flywheel Assy- 164 tooth ring gear - (4) attaching holes on 11 13/32" bolt circle , C6
- Base Number: 6375
- Callout Name: 6375
$83.33 $57.001 - -378941-S7-8
No Description Available- (MM-169-H)-Nut (flywheel to converter)-3/8"-24 r/b 378941-S7 , STANDARD PART C6 A/T
(MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6
(MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6 A/T - Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6375
- GASKET SET (OIL PAN)
$21.37 $15.381 
$24.97 $18.281
E7AZ-6701-A
PACKING (CRANKSHAFT REAR)Seal Assy - Crankshaft Oil- r/b F1TZ 6701-A
- Base Number: 6701
- Callout Name: 6701
$40.58 $20.791
B8A-6378-A
WASHER (CRANKSHAFT PULLEY RETAINING)Nut - Hex. - Self-Locking- 21/32" I.D. x 1 3/4" O.D. x 7/32" thick
- Callout Name: 6378
- Replaced By: F67Z-6378-AA
$16.67 $11.701
D8TZ-7600-A
BEARING (CLUTCH PILOT)Sleeve- Needle type , TRANS. SPD:All
- Base Number: 7600
- Callout Name: 7600
$8.05 $5.651
-377850-S
DAMPER ASSY. (CRANKSHAFT)Bolt- (BB-273-A)-bolt (damper and washer to crankshaft). -hex hd.-5/8"-18 x 2" , STANDARD PART
(BB-273-A)-bolt (damper to crank)-hex. head-5/8"-18 x 2" , STANDARD PART - Base Number: 377850-S
- Callout Name: 6316
- -377850-S
PULLEY ASSY. (CRANKSHAFT)Bolt- (BB-273-A)-bolt (6312 to crankshaft)-5/8"-18 x 2" , STANDARD PART
- Base Number: 377850-S
- Callout Name: 6312
- BOLT (FLYWHEEL TO CRANKSHAFT)-378941-S7-8
No Description Available- (MM-169-H)-nut (flywheel to converter)-3/8"-24 , STANDARD PART C6 A/T
- Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6379
D2AZ-6379-A
Bolt- 7/16"-20 x 1.06" hex hd.-r/b F1ZZ 6379-A
M/T, r/b F1ZZ 6379-A
M/T, r/b F1ZZ 6379-A 7/16"-20 x 1 1/16" - Require Quantity: 6
- Package Quantity: 1
- Callout Name: 6379
- Replaced By: F1ZZ-6379-A
D2AZ-6379-B
Bolt - Hex.Head- 7/16"-20 x 23/32" , A/T
7/16"-20 x 23/32" used without 6A366 plate , A/T
7/16"-20 x 3/4" , A/T - Require Quantity: 6
- Package Quantity: 1
- Base Number: 6379
- Callout Name: 6379
-42998-S8
PULLEY ASSY. (CRANKSHAFT-OUTER) -also refer to pulley I.D. chart, Section 60, page 5.Bolt 3/8-16X1.00 Hex- (B-252-A) bolt (pulley to damper) 3/8"-16 x 1" , STANDARD PART
- Require Quantity: 4
- Package Quantity: 1
- Callout Name: 6A312
C3AZ-6337-AF
BEARING (CRANKSHAFT MAIN)Bearing Main- Size O.D.: Std. Size I.D.: .030" LOWER CENTER
- Location: Lower Center
- Callout Name: 6337
- BEARING (CRANKSHAFT MAIN)C3AZ-6337-AF
Bearing Main- Size O.D.: Std. Size I.D.: .030" LOWER CENTER
- Location: Lower Center
- Callout Name: 6333
C5TZ-6333-AC
Bearing - Crankshaft Main- Size O.D.: Std. Size I.D.: .002" U/S LOWER CENTER
Size O.D.: Std. Size I.D.: .002" U/S LOWER FRONT
Size O.D.: Std. Size I.D.: .002" U/S LOWER FRONT INTERMEDIATE
Size O.D.: Std. Size I.D.: .002" U/S LOWER REAR
Size O.D.: Std. Size I.D.: .002" U/S LOWER REAR INTERMEDIATE - Location: Lower Center
Lower Front
Lower Rear - Callout Name: 6333
D4FZ-6333-A
Bearing - Crankshaft Main- Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER CENTER
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER FRONT
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER FRONT INTERMEDIATE
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR
Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR INTERMEDIATE - Location: Upper Center
Upper Front
Upper Rear - Base Number: 6333
- Callout Name: 6333
- D4FZ-6337-A
Bearing - Crankshaft Main Thrust- Size O.D.: Std. "Before 7/12/83" Size I.D.: Std. UPPER REAR INTERMEDIATE
- Callout Name: 6333
- D4FZ-6337-B
Bearing - Crankshaft- Size O.D.: Std. "Before 7/12/83" Size I.D.: .001" U/S UPPER REAR INTERMEDIATE
- Callout Name: 6333
- D4FZ-6337-G
Bearing-Crankshaft Mn Thr-Lw- Size O.D.: Std. Size I.D.: Std. LOWER REAR INTERMEDIATE
- Callout Name: 6333
D4FZ-6337-H
Bearing - Crankshaft- Size O.D.: Std. Size I.D.: .001" U/S LOWER REAR INTERMEDIATE
- Callout Name: 6333
D9TZ-6316-C
DAMPER ASSY. (CRANKSHAFT)-also refer to pulley I.D. Chart, section 60, page 5.Pulley - With Vibration Damper- Base Number: 6316
- Callout Name: 6316
E6TZ-6701-A
SEAL (CRANKSHAFT REAR)Seal Assy - Crankshaft Oil- Require Quantity: 2
- Package Quantity: 1
- Base Number: 6701
- Callout Name: 6701
Genuine Ford Parts, the Right Choice
FordPartsGiant.com offers the wholesale prices for genuine 1981 Ford F-250 parts. Parts like Crankshaft And Flywheel are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 6.6L. Transmission: 4MT.