1984 GMC C2500 Suburban Engine Oil Pump Melling

★★★★☆ 4.5/5 78 ratings

High Performance Oil Pump

Features:
Includes +15 PSI higher pressure relief spring installed and optional standard pressure relief spring.
Extended drive and idler shaft for additional support in the cover eliminating dynamic shfaft deflection at increased RPM levels.
Billet steel gears.
Cover is doweled to the pump housing to assure alignment of the shaft bores.
25% volume increase over standard oil pump.
Includes 12770 chrome moly intermediate shaft with steel guide.
Cast Iron Housing
High volume performance upgrade for the 10770.

25% Higher Volume High Performance Oil Pump
15 PSI Higher Pressure Relief Spring Installed
Billet Steel Pump Gears
Drive & Idler Shafts extended Into Cover
Includes 12770 Chrome Moly Steel Intermediate Shaft With Steel Guide
Includes Optional Standard Pressure Spring
Uses 3/4 Inch Diameter Press-Fit Pickup Tube Assembly (Not Included)

10778 High Performance, High Volume, High Pressure, Billet Steel Oil Pump

Performance

This Part Fits the Following OEM/Substitute Numbers:

10778, DM-77HVP

1 In Stock

Best Price:

$205.00 USD $246.00 USD

Brand	Melling
Part #	M3510778
Condition	New
Warehouse	B
UPC	729295513148

C2500 Suburban Melling Engine Oil Pump 1984 GMC

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Additional Fitment Information:

Vehicle
1984 GMC C2500 Suburban

Description Specifications Reviews (78)

High Performance Oil Pump
25% Higher Volume High Performance Oil Pump
15 PSI Higher Pressure Relief Spring Installed
Billet Steel Pump Gears
Drive & Idler Shafts extended Into Cover
Includes 12770 Chrome Moly Steel Intermediate Shaft With Steel Guide
Includes Optional Standard Pressure Spring
Uses 3/4 Inch Diameter Press-Fit Pickup Tube Assembly (Not Included)
10778 High Performance, High Volume, High Pressure, Billet Steel Oil Pump
Performance

Replacement & Maintenance Guide

Helpful replacement and maintenance guidance for Engine Oil Pump.

System	Engine / Lubrication
Description / What It Does	The oil pump circulates pressurized oil through the engine to protect bearings, camshafts, timing components, and other moving parts. Failure can cause low oil pressure and severe engine damage quickly.
Replace / Inspect Guidance	No routine interval; inspect oil pressure if warning lights/noise appear and replace during major engine work or when pressure is confirmed low due to pump wear.
Job Difficulty	Advanced / Professional
Maintenance Tips	Change oil and filter frequently, keep the oil level full, use the correct viscosity, and do not ignore low-pressure warnings.

General

Additional Cover Shaft Support

Yes

Additional Volume Over Stock Percentage

25%

Adjustable Bypass Pressure

Yes

Alternate Pressure Springs Included

Yes

Anti Cavitation

Drive Shaft Included

Yes

Drive Type

Drive Shaft

Gasket Or Seal Included

Gear Material

Billet Steel

Gear Type

Spur Gear

Grade Type

Performance

Manufactured For

Gm Bbc

Manufactured Pressure

(pink) 70 Psi

Mounting Hole Diameter

0.240
6.00

Mounting Hole Quantity

Oil Pump Pressure Type

High Pressure

Oil Pump Type

Gear

Oil Pump Volume Type

High Volume

Optional Spring Pressure 1

(plain) 52 Psi

Optional Spring Pressure 2

N/a

Pickup Tube Diameter

0.750
19.00

Screen Information

3/4" Press In

Upgrade for Pump Number

10770

Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.