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Melling High-Volume Oil Pump
See if this part fits a specific vehicle.
High-volume replacement oil pump. Durable cast-iron body. Outputs up to 25% more oil than a stock oil pump. Uses intermediate shaft with steel guide. Accepts 3/4" oil pump screen.
Product Features:
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Product Features:
- 1/4" larger gears and housing produce 25% higher volume of oil than the stock replacement oil pump, helping to solve low oil volume issues
- Precision-engineered gears and cast-iron body provide consistent and reliable performance
- Includes instructions to complete installation
| Belt Driven: | No |
| Gaskets Included: | No |
| High Pressure: | No |
| High Volume: | Yes |
| Material: | Cast Iron |
| Pickup Screen Included: | No |
| Quantity: | 1 |
| Type: | Stock Replacement |
REVIEW SNAPSHOT®
by PowerReviewsMellingHigh-Volume Oil Pump
(based on 4 reviews)
Ratings Distribution
100%
of respondents would recommend this to a friend.
REVIEWS
Reviewed by 4 customers
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Displaying reviews 1-4
Pros
- More Oil Volume
Cons
- Extra Load On Engine
Best Uses
- Performance Driving
- Racing
Comments about Melling High-Volume Oil Pump:
Not much to say on it's performance because I had to return it & swap for stock volume. It's a '00 GMC Jimmy 4.3 V6 4x4 with the cast aluminum oil pan. Couldn't seem to get the proper 3/8" clearance between pan & screen - couldn't even get 5/16" - so back to the store it went. Figured the HV pump would give me a bit more engine life, since I cheaped out and skipped on doing the crank & big-end bearings, but it's a daily driver - mostly stock except it's got an Edelbrock carb instead of FI, so don't really need the HV anyway. Will be installing the stocker (Melling) in it's place.
Pros
Cons
- Stock screen doesn't fit
Best Uses
Comments about Melling High-Volume Oil Pump:
Be sure to buy the melling oil pump screen part# 258S and the steel shaft.
The stock oil pump screen from my 2003 Chev Express 1500 4.3l has a different tube size from the high volume melling pump, so I've had to return the store to get it.
Also, you must buy the steel shaft to replace the stock shaft Part No. IS-55E
Pros
- Improves Engine Efficiency
Cons
Best Uses
- Performance Driving
Comments about Melling High-Volume Oil Pump:
Helped improve oil pressure. More oil flow in the top end make sure you purchase the hardened pump shaft it doesn't come with the pump
Pros
- Improves Engine Efficiency
Cons
- none
Best Uses
- Everyday Driving
Comments about Melling High-Volume Oil Pump:
Best value of any vendors I checked with.
- Car & Truck:
- Truck Enthusiast
Displaying reviews 1-4
Do you have questions about this product?(earn points for answers!)
Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.
5 Questions | 5 Answers
Displaying questions 1-5
Q:
Do i need to replace the 5qt pan on my 2001 express 3500 w/5.7L engine with a larger one to use this pump?Asked on 6/14/2012 by Anonymous1 answer
CUSTOMER CARE
A:
Yes, this part Melling High-Volume Oil Pump, Part No. M155HV fits your 2001 Chevrolet Express 3500 w/5.7L engine. As this is hi vol pump-25% addl vol of oil than stock pump. You should use a deeper oil pan.
For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.Answered on 6/17/2012 by Aaron from AAP
Q:
do i have to change the stock oil pan on a 1994 5.7 liter ?Asked on 3/22/2012 by gump from lehigh valley pa.1 answer
CUSTOMER CARE
A:
For assisting you further, please provide the make and model of the vehicle.Answered on 3/24/2012 by Vincent from AAP
Q:
if i ran this oil pump on a sbc 305 would i need to upgrade to a 7 quart oil pan instead of the factory 5 quart pan?Asked on 12/14/2011 by squarebodychevy1 answer
CUSTOMER CARE
A:
Yes, if you run this Melling High-Volume Oil Pump on a sbc 305 you would need to upgrade to a 7 quart stroker clearanced oil pan instead of the factory 5 quart pan.Answered on 12/19/2011 by Vincent from AAP
Q:
does this item require additional parts or is it a direct replacement?Asked on 1/20/2011 by 10-Speed from Baltimore, Md1 answer
CUSTOMER CARE
A:
It is a direct replacement high volume oil pump.Answered on 1/21/2011 by Parts Guru Geo from AAP
Q:
Will this part help increase my oil pressure?Asked on 6/23/2010 by Rich from Dallastown, Pa.1 answer
CUSTOMER CARE
A:
Yes it could increase oil pressure.Answered on 6/23/2010 by Kevin from AAP
Displaying questions 1-5
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