1978 Pontiac Grand Lemans Oil Pumps
Your 1978 Pontiac Grand Lemans might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Oil Pumps you desperately need.
We currently carry 17 Oil Pumps to choose from for your 1978 Pontiac Grand Lemans, and our inventory prices range from as little as $38.49 up to $637.99.
On top of low prices, Advance Auto Parts offers 2 different trusted brands of Oil Pumps for the 1978 Pontiac Grand Lemans. We only sell parts from trusted brands like Melling so that you can find quality parts you can count on.
Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 72 reviews on our Oil Pumps for the 1978 Pontiac Grand Lemans from previous customers.
Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Oil Pumps stock in-person!
Oil Pumps for Your 1978 Pontiac Grand Lemans
Melling – Stock Replacement OE Type Oil Pump (Part No.M-55)
from
$43.99
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
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Product Features:
- Manufactured from high quality materials for consistent durable wear
- Precision engineered for optimum fit and function
- Designed for long-life and worry-free performance
- Melling oil pumps are tested for pressure and flow under operating conditions to ensure quality
Melling – Stock Replacement OE Type High Volume Oil Pump (Part No.M-55HV)
from
$58.99
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 ass
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Product Features:
- Manufactured from high quality materials for consistent durable wear
- Precision engineered for optimum fit and function
- Designed for long-life and worry-free performance
- High volume oil pump supplies additional oil to engines when necessary for high performance applications or low oil pressure issues
Sealed Power – Engine Oil Pump (Part No.224-4143)
from
$59.99
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
Product Features:
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Product Features:
- Manufactured to fit a specific application
- Ensures that oil is evenly distributed in the engine system
- Each oil pump is tested for pressure and flow under conditions designed to duplicate actual engine operating conditions before leaving plant
- Every pump is engineered, manufactured and assembled to the highest material and production standards
- Utilizes ISO & QS certified manufacturing
- High volume, check pan for clearance; 5/8″ inlet; use shaft w/steel guide
Melling Select Performnce – High Performance Standard Volume Cast Iron Oil Pump (Part No.10554ST)
from
$184.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shafts for additional support at increased RPM’s, a screw in relief spring plug, CNC machined cover and housing that is manganese phosphate coated, standard volume and high volume patented billet Shark Tooth gears, and a chrome moly drive shaft with steel guide. Includes lower pressure spring and self locking socket head bolts with wrench for use with bolt on screen pumps. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance Shark Tooth oil pumps are recommended for all applications where a high performance oil pump is needed.
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Product Features:
- High pressure standard volume high performance upgrade of the M155
- CNC machined phosphate coated cast iron housing and cover
- Patented billet steel shark tooth helical 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
Sealed Power – Engine Oil Pump (Part No.224-4146)
from
$38.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
Product Features:
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Product Features:
- Manufactured to fit a specific application
- Ensures that oil is evenly distributed in the engine system
- Each oil pump is tested for pressure and flow under conditions designed to duplicate actual engine operating conditions before leaving plant
- Every pump is engineered, manufactured and assembled to the highest material and production standards
- Utilizes ISO & QS certified manufacturing
- 5/8″ Inlet
Melling Select Performnce – High Performance Standard Volume Billet Aluminum Circle Track Oil Pump (Part No.10055ST-700CT)
from
$637.99
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 p
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Product Features:
- Standard volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 7 inch oil pans
- Includes oil pump mounting stud kit
- For circle track racing applications
Melling Select Performnce – High Performance High Volume Billet Aluminum Circle Track Oil Pump (Part No.10050ST-700CT)
from
$637.99
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 p
Product Features:
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Product Features:
- 25% Higher volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 7 inch oil pans
- Includes oil pump mounting stud kit
- For circle track racing applications
Melling Select Performnce – High Performance High Volume Billet Aluminum Street and Strip Oil Pump (Part No.10050ST-825SS)
from
$499.99
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 patented billet Shark Tooth 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.
Product Features:
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Product Features:
- 25% Higher volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 8.25 inch oil pans
- Includes oil pump mounting stud kit
- For street and strip applications
Melling Select Performnce – High Performance Standard Volume Billet Aluminum Street and Strip Oil Pump (Part No.10055ST-750SS)
from
$499.99
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 p
Product Features:
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Product Features:
- Standard volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 7.5 inch oil pans
- Includes oil pump mounting stud kit
- For street and strip applications
Melling Select Performnce – High Performance High Volume Billet Aluminum Street and Strip Oil Pump (Part No.10050ST-750SS)
from
$497.99
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 p
Product Features:
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Product Features:
- 25% Higher volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 7.5 inch oil pans
- Includes oil pump mounting stud kit
- For street and strip applications
Melling Select Performnce – High Performance Standard Volume Billet Aluminum Street and Strip Oil Pump (Part No.10055ST-825SS)
from
$497.99
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 p
Product Features:
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Product Features:
- Standard volume high performance racing oil pump
- Lightweight anodized coated billet 6061-T6 aluminum housing and cover
- Patented high volume billet steel shark tooth helical gears create less oil pulsing at high RPM’s
- Includes high performance 12550 chrome moly steel intermediate drive shaft with pinned steel guide
- Adjustable relief valve has multiple pressure settings
- Includes additional replacement pressure springs to increase or decrease 10 Pounds
- Integrated adjustable oil pickup screen is designed for 8.25 inch oil pans
- Includes oil pump mounting stud kit
- For street and strip applications
Melling Select Performnce – High Performance High Volume Cast Iron Oil Pump (Part No.10555ST)
from
$268.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
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Product Features:
- 25% Higher volume high performance upgrade of the 10550
- CNC machined phosphate coated cast iron housing and cover
- Cover has extended idler shafts for additional support at high RPM’s
- Patented billet steel shark tooth helical gears
- Adjustable pressure relief valve
- Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide
- Includes Lower Pressure Spring; Not Installed
- Includes Self Locking Mounting Bolts And Wrench
- Uses 3/4 Inch Diameter Press-Fit Screen or Bolt On Screen
- Includes Oil Pump Screen Mounting Gasket
Melling Select Performnce – High Performance High Volume Cast Iron Oil Pump (Part No.10552ST)
from
$255.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
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Product Features:
- 10% Higher volume high performance upgrade over stock replacement
- CNC machined phosphate coated cast iron housing and cover
- Cover has extended idler shafts for additional support at high RPM’s
- Patented billet steel shark tooth helical gears
- Adjustable pressure relief valve
- Includes Chrome Moly Steel Intermediate Drive Shaft With Steel Guide
- Includes Lower Pressure Spring; Not Installed
- Includes Self Locking Mounting Bolts And Wrench
- Uses 3/4 inch diameter press-fit screen or bolt on screen
- Includes Oil Pump Screen Mounting Gasket
Melling Select Performnce – High Performance Cast Iron Standard Billet Gear Anti-Cavitation Racing Oil Pump (Part No.10990C)
from
$249.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
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Product Features:
- 25% Higher volume anti-cavitation high performance upgrade of the M-99HVS
- CNC machined phosphate coated cast iron housing and cover
- Cover has extended idler shafts for additional support at high RPM’s
- Standard billet steel spur gears
- Manufactured with anti-cavitation grooves to prevent cavitation at low RPM’s
- Adjustable pressure relief valve
- Includes lower pressure spring; not installed
- Includes chrome moly steel intermediate drive shaft with steel guide
- Uses 3/4 inch diameter press-fit screen
- For racing applications only
- Warning: Using this pump will reduce oil pressure at idle
Melling Select Performnce – High Performance High Volume Cast Iron Oil Pump (Part No.10551ST)
from
$206.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
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Product Features:
- 25% Higher volume high performance upgrade of the M155HV
- CNC machined phosphate coated cast iron housing and cover
- Patented billet steel shark tooth helical gears
- Includes chrome moly steel intermediate drive shaft with pinned steel guide
- Includes lower pressure spring; not installed
- Uses 3/4 inch diameter press-fit screen
Melling Select Performnce – High Performance Standard Volume Cast Iron Oil Pump (Part No.10553ST)
from
$197.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
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Product Features:
- High pressure standard volume high performance upgrade of the M-55 & M-55A
- CNC machined phosphate coated cast iron housing and cover
- Patented billet steel shark tooth helical gears
- Includes chrome moly steel intermediate drive shaft with steel guide
- Includes lower pressure spring; not installed
- Uses 5/8 inch diameter press-fit screen
Melling Select Performnce – High Performance High Volume Cast Iron Oil Pump (Part No.10550ST)
from
$192.99
Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shaf
Product Features:
See More
Product Features:
- 25% Higher volume high performance upgrade of the M-55HV
- CNC machined phosphate coated cast iron housing and cover
- Patented billet steel shark tooth helical gears
- Includes chrome moly steel intermediate drive shaft with pinned steel guide
- Includes lower pressure spring; not installed
- Uses 5/8 inch diameter press-fit screen
FAQs for 1978 Pontiac Grand Lemans Oil Pumps
What are the most popular Oil Pumps for the 1978 Pontiac Grand Lemans?
With 2 brands you can trust, our most popular Oil Pumps for the 1978 Pontiac Grand Lemans parts are:
