1205 E Main St
Columbus, OH 43205
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Store Pickup

Out of Stock
At 1205 E Main StColumbus, OH

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Home Delivery

FREE for orders over $35

Standard Delivery Available

Curbside pickup is available at most stores
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Product Information

Product Details
Part No. M155HV
Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)
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

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
Specifications
Gasket Or Seal Included:
No

Grade Type:
Regular

Housing Material:
Cast Iron

Oil Pump Type:
Gear

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4.5 out of 5
8 Customer Reviews
100% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
5
4 Stars
2
3 Stars
1
2 Stars
0
1 Star
0
Pros
2
Improves Engine Efficiency
1
More Oil Volume
Cons
1
Stock screen doesn't fit
1
Extra Load On Engine
1
none
Best Uses
2
Performance Driving
1
Everyday Driving
1
Racing
Car & Truck
1
Truck Enthusiast
Describe Yourself
2
Mechanic
Reviewed by 8 Customers
I would purchase again
Verified Buyer - Submitted 4 years ago
Perfect fit for my 01 express van and works great!
I will buy more and more
Verified Buyer - Submitted 7 years ago
Outstanding
Would buy again.
Verified Buyer - Submitted 7 years ago
Increased oil pressure by 20 pounds. Must also purchase a new pickup screen.
Nice
Verified Buyer - Submitted 8 years ago
Quality pump , I would buy it again
Returned to store
Staff Reviewer - Submitted 12 years ago
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.
Bottom Line Yes, I would recommend to a friend
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Would i need to get a deeper oil pan than the stock one in my 1997 c1500 5.7 ?
Verified Reply - Steve
Hi Adan, I'm glad to help you! We do have an exact stock style engine oil pan available online for your 1997 Chevrolet C1500 and the part number is 264-132. Please enter your vehicle on our website and search for this part to check the fitment.
93 gmc 1500 v8 5.7 Changing the oil pan gasket, so in thinking if upgrading the oil pump, will the stock oil pan work? Getting new water pump, slightly bigger radiator, ac delco plug's, msd 8.5mm plugs, new distributor cap n rotor in other words im changing things out here n there with slightly performance parts. Nothing crazy just slightly upgraded. So my question, what size oil pan should i use? Got a total of 5"drop in front. 2"lowering springs, 3" lowering control arms....
Verified Reply - Solomon
Hi Necio, I'm glad to help you! This Melling Stock Replacement OE Type High Volume Oil Pump (Part # M155HV) is an exact fit for your 1993 GMC C1500 and it will fit as a stock replacement.
Would this part fit on a 06 2wd Tahoe with a 5.7
Verified Reply - Solomon
Hi Star, I'm glad to help you! To check the exact fit application for the part number M155HV, please provide us with the correct engine size of your vehicle.
what is the high end pressure of this pump
Product Owner - scottalanchannells
Depends on the engine cold 65 to 80 psi depending,  and warm never seen less then 45psi
Product Owner - carmes2936
Running 40-45 at idle and 60-65 at 55MPH.
Product Owner - rlhul
no different then stock PSI. The difference is volume. You get more flow out of this pump then a stock pump. its about 25% more. 
Would this part fit on a 97 2wd s10 with the 4.3 vortec
Verified Reply - Solomon
I'm happy to help you, Kody! This Melling High Volume Oil Pump - Part No. M155HV is an exact fit for your 1997 Chevrolet S10 4.3L engine.
Displaying Question & Answer 1-5

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