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4.3L MPI ALPHA-BRAVO EC - 1A637496 and Up - Cylinder Block Camshaft Crankshaft and Balanceshaft
Section Drawing: (Hover or click to view larger)
Other Sub-Sections:
- Alternator and Brackets
- Closed Cooling System (Alpha - Bravo) Sea Pump Hoses
- Closed Cooling System Heat Exchanger
- Closed Cooling System Hoses
- Cylinder Block Camshaft Crankshaft and Balanceshaft
- Cylinder Head and Rocker Cover
- Distributor and Ignition Components
- Engine Mounts
- Exhaust Manifold and Elbow
- Exhaust System Components
- Flywheel Coupler and Flywheel Housing
- Front Cover and Circulating Pump
- Fuel Filter
- Fuel Pump And Fuel Cooler
- Gasket Set Components (27-807756A02) Engine Overhaul
- Gear Lube Monitor
- Harness Lifting Brackets and Mercathode
- Intake Manifold and Fuel Rail
- Jackshaft Main Kit (98634A20)
- Oil Pan Oil Pump and Rear Oil Seal
- PCM and Electrical Components
- Pistons and Connecting Rods
- Poppet Valve Assembly Closed Cooling
- Remote Oil Filter
- Sea Water Pump Assembly
- Service and Support Material
- Shift Bracket Alpha
- Shift Bracket Bravo
- Standard Cooling Alpha Single Point (With Drain Plug)
- Standard Cooling Alpha Single Pt (With Handle) - Bravo 3 Pt
- Standard Cooling System (Bravo) Sea Pump Hoses
- Starter Motor
- Steering Components
- Thermostat and Housing Closed Cooling
- Thermostat and Housing Standard Cooling
- Throttle Body
- Trim Pump and Motor Components
- Trim Pump Assembly
- Water Distribution Housing
- Water Drain Air Manifold and Pump
| Ref # | Part Class | Part Number | Description | Comments | Qty | Note |
|---|---|---|---|---|---|---|
| 1 | 0023 | OEM: 525-23-818465, Sierra: 676-18-1300 | BEARING SET 5 Pair | (Standard) | 1 | [1] |
| 1 | 0023 | OEM: 525-23-818466 | BEARING SET 5 Pair | (.001 Undersize) | AR | |
| 1 | 0023 | OEM: 525-23-818467 | BEARING SET 5 Pair | (.010 Undersize) | AR | |
| 1 | 0023 | OEM: 525-23-818468 | BEARING SET 5 Pair | (.020 Undersize) | AR | |
| 2 | 0017 | OEM: 525-17-43504 | PIN Dowel | 2 | [1] | |
| 3 | 0429 | OEM: 525-429-804911001 | CRANKSHAFT | 1 | [1] | |
| 4 | 0028 | OEM: 525-28-8184851 | KEY Crankshaft | 2 | [1] | |
| 5 | NSS | NOT SOLD SEPARATE Cap- Crankshaft Bearing | 0 | [1] | ||
| 6 | 0010 | 888778 | SCREW Crankshaft Bearing Cap | 8 | [1] | |
| 7 | 0016 | OEM: 525-16-54790 | STUD Crankshaft Bearing Cap | 5 | [1] | |
| 8 | 0023 | OEM: 525-23-85674 | BEARING SET | 1 | [1] | |
| 9 | 0000 | OEM: 525-17341T | GUIDE Lifter Lifter | 6 | [1] | |
| 10 | 0000 | OEM: 525-8118441 | LIFTER Roller | 12 | [1] | |
| 11 | 0431 | OEM: 525-431-803186 | CAMSHAFT | 1 | [1] | |
| 12 | 0017 | 353121 | PIN Dowel | 1 | [1] | |
| 13 | 0000 | OEM: 525-8243311 | RETAINER Lifter Guide | 2 | [1] | |
| 14 | 0010 | 8243321 | SCREW (.312-18 x .625) | 3 | [1] | |
| 15 | 0022 | OEM: 525-22-864669 | FITTING | 1 | ||
| 16 | 0000 | OEM: 530-881879T11 | SENSOR Pressure (0 - 100 PSI) Oil Pressure | 1 | ||
| 17 | 0000 | 815425T | SENDER ASSEMBLY Oil Pressure | 1 | ||
| 17 | 0000 | OEM: 525-37293T | SENDER ASSEMBLY Oil Pressure | (Dual Station) | OPT | |
| 18 | 0013 | OEM: 525-13-26996 | LOCKWASHER (#10) Stainless Steel | 1 | ||
| 19 | 0011 | OEM: 525-11-68219 | NUT (#10-32) Stainless Steel | 1 | ||
| 20 | 0000 | OEM: 525-8241481 | BALANCED SHAFT | 1 | ||
| 21 | NSS | NOT SOLD SEPARATE BEARING | 1 | |||
| 22 | 0031 | OEM: 525-31-824150 | BEARING Needle Rear | 1 | ||
| 23 | 0000 | 824153 | RETAINER Balance Shaft | 1 | ||
| 24 | 0010 | OEM: 525-10-845943 | SCREW (.250-20 x .500) | 2 | ||
| 25 | 0043 | OEM: 525-43-8241511 | GEAR KIT Balance Shaft | 1 | ||
| 26 | 0010 | 824152 | SCREW | 1 | ||
| 27 | 0010 | 824329 | SCREW (.312-18 x .750) | 3 | ||
| 28 | 0022 | OEM: 525-22-8M2005622 | FITTING Reducer (M28 x .250) | (Port) | 1 | |
| 29 | 0022 | OEM: 525-22-862603 | FITTING | 2 | ||
| 30 | 0025 | OEM: 525-25-627021 | O-RING (.301 x .070) | 2 | ||
| 31 | 0022 | OEM: 525-22-862225 | FITTING | 2 | ||
| 32 | 0022 | OEM: 525-22-328022, Sierra: 676-18-4263 | PLUG Pipe (.125-27) Brass Top of Block | 1 | ||
| - | 0092 | 809825 | RTV SILICONE (3 Ounce Tube) Metallic Blue Where Applicable | 1 | ||
| - | 0092 | 34227Q02 | SEALING COMPOUND Where Applicable | 1 | [2] | |
| - | 0000 | 879150A31 | LONG BLOCK (4.3L) | 1 | [3] |
PART NOTES:
[1] - Component of Long Block Assembly 879150A31
[2] - Alternate part numbers:
34227Q02QS
[3] - Alternate part numbers:
879150A31QS
879150R31Reman
8M0150280Reman