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1981 GMC C7000 Oil Pump

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Melling Oil Pump

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Our List Price: $144.98
(32) In Stock
Part Number: 25745-07372930
Notes: Performance -- 25% Higher Volume High Performance Oil Pump; Standard Billet Steel Spur Gears; Adjustable Pressure Relief Valve; Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Includes Original Stock Replacement Pressure Spring; Not Installed; Uses 3/4 Inch Diameter Press-Fit Screen
Features:
  • High Performance Oil Pump
  • Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. High volume performance upgrade for the 10770. Increase in volume of 25% over stock oil pump. The drive shaft has been manufactured from chrome-moly steel. The drive and idler shafts have been extended to allow for additional support in the cover. Additional support eliminates dynamic shaft deflection at increased RPM levels. The cover is doweled to the pump housing to assure alignment of the shaft bores. The relief valve has a screw-in plug instead of a pin. The housing and cover are CNC machined and phosphate coated. An additional spring, the original stock replacement is supplied which will reduce bypass pressure if needed. Includes 12770 chrome moly intermediate shaft with steel guide. Built with billet steel gears. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Cast Iron
Oil Pump Type Gear
Pick Up Tube Diameter 0.75 in

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $119.98
(15) In Stock
Part Number: 25745-07825354
Notes: Performance -- 25% Higher Volume High Performance Oil Pump; Standard Billet Steel Spur Gears; Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Includes Lower Pressure Spring; Not Installed; Uses 3/4 Inch Diameter Press-Fit Screen
Features:
  • High Performance Oil Pump
  • Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. High volume performance upgrade for the M-77HV. 25% Increase in volume over stock pump. The housing and cover are CNC machined and phosphate coated. The lower pressure spring is included to reduce pressure if desired. Built with billet steel gears. Includes Intermediate shaft with steel guide. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Cast Iron
Oil Pump Type Gear
Pick Up Tube Diameter 0.75 in

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $149.98
(13) In Stock
Part Number: 25745-07890977
Notes: Performance -- 25% Higher Volume High Performance Oil Pump; Standard Billet Steel Spur Gears; Manufactured With Anti-Cavitation Grooves; Adjustable Pressure Relief Valve; Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Includes Original Stock Replacement Pressure Spring; Not Installed; Uses 3/4 Inch Diameter Press-Fit Screen; For Racing Applications Only; Using This Pump Will Reduce Oil Pressure At Idle
Features:
  • High Performance Oil Pump
  • Melling high performance anti-cavitation oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance anti-cavitation oil pump features a doweled cast iron housing and cover with additional machined anti-cavitation grooves, extended drive and idler shafts for additional support at increased RPM's, screw in relief spring plug, a CNC machined cover and housing that is manganese phosphate coated, self locking socket head bolts includes wrench, billet steel gears, and a chrome moly drive shaft with steel guide. Includes lower pressure spring to reduce pressure. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance anti-cavitation oil pumps are for racing applications only and are not recommended for street use.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Cast Iron
Oil Pump Type Gear
Pick Up Tube Diameter 0.75 in

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $406.98
with FREE Shipping
(1) In Stock
Part Number: 25745-07942360
Notes: Performance -- Oil Pan Depth 8 Inches; 25% Higher Volume High Performance Oil Pump; Lightweight Billet 6061-T6 Aluminum Housing And Cover; Standard Billet Steel Spur Gears; Includes 12550 Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Multiple Pressure Settings Relief Valve; Includes Additional Replacement Pressure Springs To Increase 10 Pounds Or Decrease 10 Pounds; Integrated Oil Pickup Screen Is Designed for 8 Inch Oil Pans; Includes Oil Pump Mounting Stud Kit; Designed For Street And Strip Applications
Features:
  • High Performance Oil Pump
  • Melling high performance billet aluminum oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling billet aluminum oil pump series features a lightweight 6061-T6 aluminum housing and cover, a protective anodized hard coat, standard volume and high volume billet spur gears, chrome moly steel drive shaft with extra shaft support, adjustable integrated oil pump screen, multiple pressure settings, CNC machining to exact tolerances and surface finishes, and supercharged inlet for improved performance. Includes additional pressure springs and stud kit. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance oil pumps are available for increased oil flow, increased oil pressure, anti-cavitation capability and overall higher performance when needed. The Melling high performance billet aluminum series oil pumps are recommended for street, strip and racing applications.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Billet Aluminum
Oil Pump Type Gear

Shipping Options:
Free Ground Shipping
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $460.98
with FREE Shipping
(1) In Stock
Part Number: 25745-07481593
Notes: Performance -- Oil Pan Depth 9 Inches; 25% Higher Volume High Performance Oil Pump; Lightweight Billet 6061-T6 Aluminum Housing And Cover; Standard Billet Steel Spur Gears; Includes 12550 Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Multiple Pressure Settings Relief Valve; Includes Additional Replacement Pressure Springs To Increase 10 Pounds Or Decrease 10 Pounds; Integrated Oil Pickup Screen Is Designed for 9 Inch Oil Pans; Includes Oil Pump Mounting Stud Kit; Designed For Street And Strip Applications
Features:
  • High Performance Oil Pump
  • Melling high performance billet aluminum oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling billet aluminum oil pump series features a lightweight 6061-T6 aluminum housing and cover, a protective anodized hard coat, standard volume and high volume billet spur gears, chrome moly steel drive shaft with extra shaft support, adjustable integrated oil pump screen, multiple pressure settings, CNC machining to exact tolerances and surface finishes, and supercharged inlet for improved performance. Includes additional pressure springs and stud kit. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance oil pumps are available for increased oil flow, increased oil pressure, anti-cavitation capability and overall higher performance when needed. The Melling high performance billet aluminum series oil pumps are recommended for street, strip and racing applications.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Billet Aluminum
Oil Pump Type Gear

Shipping Options:
Free Ground Shipping
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

Click to Enlarge
(Read reviews)
Our List Price: $460.98
with FREE Shipping
(1) In Stock
Part Number: 25745-07610310
Notes: Performance -- Oil Pan Depth 9 Inches; Standard Volume High Performance Oil Pump; Lightweight Billet 6061-T6 Aluminum Housing And Cover; Standard Billet Steel Spur Gears; Includes 12550 Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Multiple Pressure Settings Relief Valve; Includes Additional Replacement Pressure Springs To Increase 10 Pounds Or Decrease 10 Pounds; Integrated Oil Pickup Screen Is Designed for 9 Inch Oil Pans; Includes Oil Pump Mounting Stud Kit; Designed For Street And Strip Applications
Features:
  • High Performance Oil Pump
  • Melling high performance billet aluminum oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling billet aluminum oil pump series features a lightweight 6061-T6 aluminum housing and cover, a protective anodized hard coat, standard volume and high volume billet spur gears, chrome moly steel drive shaft with extra shaft support, adjustable integrated oil pump screen, multiple pressure settings, CNC machining to exact tolerances and surface finishes, and supercharged inlet for improved performance. Includes additional pressure springs and stud kit. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance oil pumps are available for increased oil flow, increased oil pressure, anti-cavitation capability and overall higher performance when needed. The Melling high performance billet aluminum series oil pumps are recommended for street, strip and racing applications.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Billet Aluminum
Oil Pump Type Gear

Shipping Options:
Free Ground Shipping
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $117.98
(4) In Stock
Part Number: 25745-07497483
Notes: Performance -- Standard Volume High Performance Oil Pump; Standard Billet Steel Spur Gears; Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide; Includes Lower Pressure Spring; Not Installed; Uses 3/4 Inch Diameter Press-Fit Screen
Features:
  • High Performance Oil Pump
  • Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. Standard volume performance upgrade for M-77. The housing and cover are CNC machined and phosphate coated. The lower pressure spring is included to reduce pressure if desired. Built with billet steel gears. Includes intermediate shaft with steel guide. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions.
Condition: New

Grade Type Performance
Gasket Or Seal Included No
Housing Material Cast Iron
Oil Pump Type Gear
Pick Up Tube Diameter 0.75 in

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $49.98
(99) In Stock
Part Number: 25745-07547009
Notes: Stock -- High Volume Oil Pump
Features:
  • Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
Condition: New

Title Engine Oil Pump
Grade Type Regular
Gasket Or Seal Included No
Mounting Hole Quantity 2
Housing Material Cast Iron
Oil Pump Type Gear

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 

Melling Oil Pump

Click to Enlarge
(Read reviews)
Our List Price: $49.98
(99) In Stock
Part Number: 25745-07547009
Notes: Stock -- High Volume Oil Pump; Oil Pickup Tube And Screen Not Included
Features:
  • Melling high volume oil pumps increase the amount of oil flow by an average of 20% through the engine improving oil pressure at idle providing dependable performance every time in every application. Every Melling high volume oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling high volume oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. High volume gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
Condition: New

Title Engine Oil Pump
Grade Type Regular
Gasket Or Seal Included No
Mounting Hole Quantity 2
Housing Material Cast Iron
Oil Pump Type Gear

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 6.0L V8 

Melling Oil Pump

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(Read reviews)
Our List Price: $38.98
(36) In Stock
Part Number: 25745-07660753
Notes: Stock -- Standard Volume And Pressure
Features:
  • Melling oil pumps provide dependable performance every time in every application. Every Melling oil pump is engineered and assembled to the highest production standards from high quality materials. All Melling oil pumps use the latest in gear and gerotor technology to provide the highest level of quality and performance. Gears are machined to close tolerances to ensure proper engine pressure and correct, efficient pump operation. End plates are precision ground for maximum wear resistance. Every Melling oil pump is individually tested for pressure and flow under conditions designed to duplicate actual engine operating conditions.
Condition: New

Title Engine Oil Pump
Grade Type Regular
Gasket Or Seal Included No
Housing Material Cast Iron
Oil Pump Type Gear

Shipping Options:
Ground
This Part Fits: Catalog: C
Vehicle Engine
1981 GMC C7000 7.0L V8 
1981 GMC C7000 6.0L V8 

Sealed Power Oil Pump
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(Read reviews)
Our List Price: $56.43
(10) In Stock
Part Number: 25745-05295052
Notes: Engine Oil Pump -- High Volume Oil Pump
Condition: New

Shipping Options:
Ground
This Part Fits: Catalog: B
Vehicle Engine
1981 GMC C7000 7.0L V8 

Sealed Power Oil Pump
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(Read reviews)
Our List Price: $56.43
(10) In Stock
Part Number: 25745-05295052
Notes: Engine Oil Pump -- High Volume Oil Pump; Oil Pickup Tube And Screen Not Included
Condition: New

Shipping Options:
Ground
This Part Fits: Catalog: B
Vehicle Engine
1981 GMC C7000 6.0L V8 

Sealed Power Oil Pump
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(Read reviews)
Our List Price: $44.43
(1) In Stock
Part Number: 25745-05306393
Notes: Engine Oil Pump -- Standard Volume And Pressure
Condition: New

Shipping Options:
Ground
This Part Fits: Catalog: B
Vehicle Engine
1981 GMC C7000 6.0L V8 
1981 GMC C7000 7.0L V8 



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