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| Width | 3.820 IN |
| Height | 4.180 IN |
| Grade Type | Standard Replacement |
| Gasket Or Seal Included | No |
| Mounting Hole Quantity | 2 |
| Housing Material | Cast Iron |
| Drive Type | Drive Shaft |
| Oil Pump Type | Gear |
| Mounting Hole Diameter | 0.250 IN |
| Alternate Pressure Springs Included | Yes |
| Gear Type | Spur Gear |
| Oil Pump Pressure Type | Standard Pressure |
| Oil Pump Volume Type | Standard Volume |
| Engine Family | Big Block |
| Manufacture | Chevrolet |
| Note 2 | Fits most pre 1987 applications |
| Part Description | Engine Oil Pump |
| Grade Type | Premium |
| Height | 106.17 MM |
| Mounting Hole Diameter | 6.35 MM |
| Width | 97.12 MM |
| Adjustable Bypass Pressure | No |
| Bolts Included | No |
| Bushing Included | Yes |
| Cotter Pin Included | No |
| Cover Material | Cast Iron |
| Drive Shaft Included | No |
| Finish | Rust Preventative |
| Gear Material | Steel |
| Gears Included | Yes |
| Governor Spinner Included | No |
| Guide Included | Yes |
| Inlet Size (in) | 0.75 |
| Inlet Size (mm) | 19 |
| Intermediate Shaft Included | No |
| Nylon Bushing Included | Yes |
| O-Ring Included | No |
| Pickup Screen Included | No |
| Pickup Tube Diameter | 0.75 IN |
| Pickup Tube Diameter | 19.00 MM |
| Prop 65 Label (Yes/No) | No |
| Pump Cover Included | Yes |
| Shaft Material | Not Applicable |
| Spacer Included | No |
| Timing Cover Included | No |
| Washers Included | No |
| Country of Origin (Primary) | US |
| Canadian Harmonizing Tariff Code | 8413300010 |
| Harmonized Tariff Code (Schedule B) | 8413309060 |
| Harmonized Tariff Code (HTS) | 8413309060 |
| UPC | 00053059000323 |
| VMRS Code | 045009003 |
| Brand | Part Number |
|---|---|
| Avon Automotive | A77 |
| Balkamp | 601-1048, 6011048 |
| Clevite | 601-1048, P77, 6011048 |
| Dana Commercial Vehicle Service Parts | 601-1048, 6011048 |
| Dynagear | DM77 |
| Elgin | EM77, EM-77 |
| General Motors | 3904826, 3904827, 3946027, 3964260, 475903, 475906, 475908 |
| Hayden | OP77, OP77G |
| Hoof | HM77 |
| Ksg Industries | 4154 |
| MAHLE | 6011048, 601-1048 |
| MELLING ENGINE PRODUCTS | M77 |
| Mcquay-Norris | OP120 |
| Melling | M77 |
| Muskegon | MM-77, MM77 |
| N/A | M-77 |
| TRW Steering and Suspension Parts | 50054 |
| Wolverine | OP328 |
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