Melling brand oil pump for the duramax

[dmaxvaz]

Has anyone here use a Melling brand oil pump for the dmax? i am wondering how it compares to the factory one and if they are any good (oil psi wise). The stock one that came with my motor has some scuffing on the inside and am leery about reusing it. Thanks in advance

 

[TheBac]

Didnt even know Melling came out with one for us. Interesting info.

Trent and Eric both told me that if there is any scuffing inside the pump...not a good idea to reuse it.

 

[Bearce Sr]

I always use Melling Pumps.:thumb: Gas Engines, Haven't had my Dmax apart yet

 

[ripmf666]

Vasile that's the pump we had trouble with in that lb7 we built. It's cast iron holds real high oil pressure and spun the gear on the shaft. Sent it back bought a new lbz one and had the shaft keyed to be safe. I can get oem oil pump at a good price.

 

[wdino73]

I may be wrong but I thought the lb7's came out with melling oil pump, That's what I put in mine

 

[wdino73]

Here u go boys.

Description: PUMP-OIL
Manufacturer: MELLING AUTOMOTIVE PRODUCTS
Model Number: M316

This part fits the following vehicles


Year Make Model Engine

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2006 - 2007 GMC SAVANA 2500 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
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2008 - 2008 GMC SAVANA 2500 6.6L 400 V8 DIESEL FI VIN 6
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2007 GMC SAVANA 3500 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2008 - 2008 GMC SAVANA 3500 6.6L 400 V8 DIESEL FI VIN 6
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2001 - 2004 GMC SIERRA 2500 HD 6.6L 400 V8 DIESEL FI VIN 1
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2004 - 2004 GMC SIERRA 2500 HD 6.6L 403 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2006 GMC SIERRA 2500 HD SL 6.6L 400 V8 DIESEL FI VIN D
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2005 - 2006 GMC SIERRA 2500 HD SLT 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2004 - 2004 GMC SIERRA 3500 6.6L 403 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2001 - 2004 GMC SIERRA 3500 6.6L 400 V8 DIESEL FI VIN 1
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2005 - 2006 GMC SIERRA 3500 SL 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2006 GMC SIERRA 3500 SLE 6.6L 400 V8 DIESEL FI VIN D
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2007 CHEVROLET EXPRESS 2500 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2008 - 2008 CHEVROLET EXPRESS 2500 6.6L 400 V8 DIESEL FI VIN 6
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2007 CHEVROLET EXPRESS 3500 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2008 - 2008 CHEVROLET EXPRESS 3500 6.6L 400 V8 DIESEL FI VIN 6
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2001 - 2004 CHEVROLET SILVERADO 2500 HD 6.6L 400 V8 DIESEL FI VIN 1
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2004 - 2006 CHEVROLET SILVERADO 2500 HD LS 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2006 CHEVROLET SILVERADO 2500 HD LT 6.6L 400 V8 DIESEL FI VIN D
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2001 - 2004 CHEVROLET SILVERADO 3500 6.6L 400 V8 DIESEL FI VIN 1
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2004 - 2004 CHEVROLET SILVERADO 3500 6.6L 403 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2006 - 2006 CHEVROLET SILVERADO 3500 LT 6.6L 400 V8 DIESEL FI VIN D
Fit Note: OHV ENG - 4.06 Bore
--------------------------------------------------------------------------------

2005 - 2006 CHEVROLET SILVERADO 3500 WT 6.6L 400 V8 DIESEL FI VIN 2
Fit Note: OHV ENG - 4.06 Bore

 

[ripmf666]

You guys can keep that pump sameone we installed last year on the LB7 we built. And it cost more then the oem Gm pump.

 

[dmaxvaz]

Vasile that's the pump we had trouble with in that lb7 we built. It's cast iron holds real high oil pressure and spun the gear on the shaft. Sent it back bought a new lbz one and had the shaft keyed to be safe. I can get oem oil pump at a good price.

Henry, is a lb7 pump the same as a lbz one? i thought the lb7s put out more psi?

 

[ripmf666]

All the new pumps are the same they did away with the LB7 pump.To stop the but from backing off.

 

[ripmf666]

Here are some pics of that Mellings pump truck had to be hauled from WV to Md on a rollback. And we had to pull the motor and we had to check all the bearing and we sent the junk ass pump back to mellings and I went to Gm and got a new LBZ pump. truck did not even make it 1,200 miles with the mellings it has over 60k on it now.

 

[Vrabel]

Henry, is a lb7 pump the same as a lbz one? i thought the lb7s put out more psi?

The nut for the gear is the opposite direction thread.