Melling Performance 10055ST-825SS oil pump for the 1988-1999 Chevrolet C1500 V8 5.7L and other vehicles draws oil through its pickup screen and sends it to the engine with a gear set. This Melling Performance oil pump is a standard volume billet aluminum unit for street and strip use.
- 6061-T6 billet aluminum housing and cover with an anodized hard coat
- Standard volume billet steel Shark Tooth helical gears
- Chrome moly steel drive shaft, extended into the cover for support
- Adjustable integrated pickup screen with a stainless steel wire mesh
- Multiple pressure settings, CNC machined to exact tolerances and surface finishes
- Supercharged inlet for improved performance at high RPM
Quick facts
- Part: Melling Performance 10055ST-825SS oil pump
- Also called: engine oil pump
- Fits: 1988-1999 Chevrolet C1500 V8 5.7L and other vehicles
- Material: 6061-T6 billet aluminum housing, billet aluminum cover, billet steel gears, chromoly steel shaft
- Condition: New
Low oil pressure readings, a low oil pressure warning light or new engine noise can mean the engine oil pump is worn, though a bad oil pressure sender or worn engine bearings can also be behind them, so find the cause before you replace the pump.
Fits
Listed for a wide range of Chevrolet, GMC, Cadillac, Buick, Oldsmobile and Pontiac models, the pump covers the 1988-1999 Chevrolet C1500 V8 5.7L, the 1988-1999 Chevrolet K1500 V8 5.7L and the 1995-2000 Chevrolet Tahoe V8 5.7L. For any other model, look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Manufactured for: GM SBC
- Upgrade for pump number: M-55
- Quantity per vehicle: 1
- Pan depth: 8 1/4 inch
- Pickup screen diameter: 42 mm (1.650 in)
- Mounting hole diameter: 11 mm (0.450 in), 1 hole
- Height: 140 mm (5.500 in); width: 184 mm (7.250 in)
Build and materials
- Type: gear pump, standard volume, standard pressure
- Housing: 6061-T6 billet aluminum, anodized
- Cover: billet aluminum; gears: billet steel
- Shaft: chromoly steel
- Pressure: 70 PSI (red) as manufactured; optional springs 60 PSI (pink) and 80 PSI (orange)
- Bypass pressure: adjustable
- Condition: New
- Country of origin: United States
In the box
One oil pump with its cover, gears, drive shaft, pickup screen, guide and washers, plus a 12550 chrome moly intermediate shaft and +10 PSI and -10 PSI relief springs. This listing is one oil pump, and the vehicle takes one. Bolts, hardware, gaskets or seals, an O-ring and the timing cover are not included, so plan on new bolts.
Frequently Asked Questions
Is this the right oil pump for a 1995-2000 Chevy Tahoe V8 5.7L?
Yes. Melling Performance 10055ST-825SS is listed for the 1995-2000 Chevrolet Tahoe V8 5.7L, and the vehicle takes one pump.
Does the Melling 10055ST-825SS come with an intermediate shaft and extra springs?
Yes. The Melling Performance 10055ST-825SS includes a 12550 chrome moly intermediate shaft and +10 PSI and -10 PSI relief springs, plus the drive shaft and pickup screen. Bolts and gaskets are not included.
What pressure is this Melling oil pump set to out of the box?
This oil pump is manufactured at 70 PSI with the red spring. Optional springs are 60 PSI (pink) and 80 PSI (orange), and the bypass pressure is adjustable.
What oil pan depth does this standard volume oil pump suit?
This oil pump is made for 8 1/4 inch deep pans. Its pickup screen is integrated into the pump body and measures 42 mm (1.650 in) in diameter.
Does this billet oil pump add volume over a stock pump?
No. This oil pump is a standard volume gear pump with 0% additional volume over stock, using Shark Tooth helical gears, and it is built for standard pressure.
