4.3L CARB ALPHA-BRAVO - 1A063240 and Up - Cylinder Block Camshaft Crankshaft and Balanceshaft
Section Drawing: (Hover or click to view larger)
Other Sub-Sections:
- Alternator and Brackets
- Carburetor
- Carburetor and Throttle Linkage
- Closed Cooling System
- Cylinder Block Camshaft Crankshaft and Balanceshaft
- Cylinder Head and Rocker Cover
- Distributor and Ignition Components
- Electrical Components
- Engine Mounts
- Exhaust Manifold and Elbow
- Exhaust Risers
- Exhaust System
- Flywheel Coupler and Flywheel Housing
- Front Cover and Circulating Pump
- Fuel Filter and Fuel Pump
- Gasket Set Components Engine Overhaul
- Gear Lube Monitor
- Intake Manifold
- Jackshaft Components
- Maintenance Kits
- Mercathode Components
- Oil Pan Oil Pump and Rear Oil Seal
- Pistons and Connecting Rods
- Remote Oil Filter (Accessory Kit)
- Sea Water Pump Assembly (Alpha-Bravo Closed Cooling)
- Sea Water Pump Assembly (Bravo Standard) 1A299999 and Below
- Sea Water Pump Assembly (Bravo Standard) 1A300000 and Up
- Service and Support Material
- Shift Bracket (Alpha)
- Shift Bracket (Bravo)
- Standard Cooling System
- Starter Motor
- Steering Components
- Thermostat and Housing
| 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 | 1 | [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 | 17341 | GUIDE 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 | 0087 | 864252 | SWITCH | 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 | [1] | |
| 21 | NSS | NOT SOLD SEPARATE Bearing | 1 | |||
| 22 | 0031 | OEM: 525-31-824150 | BEARING Needle Rear | 1 | [1] | |
| 23 | 0000 | 824153 | RETAINER Balance Shaft | 1 | [1] | |
| 24 | 0010 | OEM: 525-10-845943 | SCREW (.250-20 x .500) | 2 | [1] | |
| 25 | 0043 | OEM: 525-43-8241511 | GEAR KIT Balance Shaft | 1 | [1] | |
| 26 | 0010 | 824152 | SCREW | 1 | [1] | |
| 27 | 0010 | 824329 | SCREW (.312-18 x .750) | 3 | [1] | |
| 28 | 0000 | OEM: 525-824333 | RETAINER Camshaft | 1 | [1] | |
| 29 | 0010 | OEM: 525-10-824334 | SCREW (.250-20 x .500) | 2 | [1] | |
| 30 | 0035 | OEM: 530-883702Q, Sierra: 676-18-7879-1 | FILTER Oil | (Quicksilver Brand) | 1 | [2] |
| 30 | 0035 | OEM: 525-35-883702K, Sierra: 676-18-7879-1 | FILTER Oil | (Mercury Precision Parts Brand) | 1 | [2] |
| 31 | 0000 | 11972 | ADAPTER | 1 | [1] | |
| 32 | 0022 | OEM: 525-22-878050 | VALVE Bypass | 1 | [1] | |
| - | 0092 | 809825 | RTV SILICONE (3 Ounce Tube) Metallic Blue Where Applicable | 1 | ||
| - | 0092 | 342271 | SEALING COMPOUND (16 Ounce) Where Applicable | 1 | ||
| - | 0000 | 879150A31 | LONG BLOCK (4.3L) | 1 | [3] |
PART NOTES:
[1] - Component of Long Block Assembly -Long Block Part Numbers Listed on Service/Support Material Page
[2] - Alternate part numbers:
41815Service Part
883702KMPP
883702QQS
[3] - Alternate part numbers:
879150A31QS
879150R31Reman
8M0150280Reman
