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![High Volume High Pressure Oil Pump with Shaft for GM 262 to 400 Small Block [Cast Iron]](https://www.jegs.com/images/mini_750/600/689/689-10555st.jpg)
Vehicle Info NeededMELLINGPART NUMBER: 689-10555ST
High Volume High Pressure Oil Pump with Shaft for GM 262 to 400 Small Block [Cast Iron]
$18199
Ships on 09/15/2026
Lowest Price GuaranteeGM Oil Pumps
High volume performance oil pump with billet Shark Tooth gears and a chromoly shaft.Fits GM 262 to 400 small block engines High volume, high pressure, 25 percent over stock 0.750 in. pickup tube diameter Phosphate coated cast iron
Bigger bearing clearances and high rpm both demand more oil than a stock pump can supply. This pump moves about 25 percent more volume than stock and backs it with a doweled housing, billet helical gears and extra cover shaft support, so the extra flow does not come at the cost of durability.
Melling 10555ST Performance Construction
- High volume and high pressure, roughly 25 percent more volume than a stock pump.
- Doweled cast iron housing and CNC machined cover with a phosphate coated finish.
- Billet steel Shark Tooth helical gears with additional cover shaft support.
- 3.220 in. width and 4.750 in. height with two 0.240 in. mounting holes.
- 0.750 in. pickup tube diameter, adjustable bypass pressure, chromoly shaft, gasket, washers and alternate springs included.
Keep Your Engine Well Lubricated
Built using the latest gear and gerotor technology methods, Melling Select Oil Pumps offer a significant performance upgrade from the factory original equipment replacement units. With the wide variety of specifications and optional features, you will find the correct oil pump for your performance engine build or "Select" application!
Part TypeOil Pump
Product LineMelling Select High-Performance Oil Pumps & Pickups
BrandMELLING
Package Height4.750 in.
Package Width3.220 in.
Package Length6.0
Weight4.65 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Drive Shaft IncludedYes
Housing FinishPhosphate Coating
Housing MaterialCast Iron
Mounting Hole Quantity2
Adjustable Bypass PressureYes
Bolts IncludedNo
Spacer IncludedNo
Alternate Pressure Springs IncludedYes
Anti-CavitationNo
Inlet Size (In.)0.75
O-Ring IncludedNo
Washers IncludedYes
Mounting Hole Diameter0.240 in.
Oil Pump Pressure TypeHigh Pressure
Bushing IncludedNo
Oil Pump TypeGear
Cover MaterialCast Iron
Shaft MaterialChromoly Steel
Pickup Screen IncludedNo
Gear MaterialBillet Steel
Pickup Tube Diameter0.750 in.
Gasket Or Seal IncludedYes
Cotter Pin IncludedNo
Gear TypeShark Tooth Helical Gear
Drive TypeDrive Shaft
Additional Cover Shaft SupportYes
Oil Pump Volume TypeHigh Volume
Part FitmentDirect Fit
Grade TypePerformance
Timing Cover IncludedNo
Additional Volume Over Stock Percentage25%
Vendor Part Number10555ST
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
