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Melling M355

Stock Replacement Oil Pump Stock Volume Stock Pressure LS 5.3L LH6 LS4 2005-06

689-M355

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Melling M355 Stock Replacement Oil Pump Stock Volume Stock Pressure LS 5.3L LH6 LS4 2005-06 $111.99
OE Replacement Oil Pump
  • GM LS 5.3L 2005-2006
  • Stock Volume / Stock Pressure
  • For Engines With Active Fuel Management / Displacement on Demand
  • Replaces GM Oil Pump 12571885

  • Melling M355 Details

    GM LS Engine Oil Pumps
    GM LS Oil Pump Application Guide, Click Here

    The Melling M355 pump is a standard pressure, standard volume pump that is considered a suitable replacement for the factory oil pump (GM part # 12571885) and offers improved resistance against cavitation at higher RPMs. The cast aluminum housing is CNC-machined and hardcoat anodized. The cast iron cover is CNC-machined and phosphate coated. The relief valve features a screw-in valve plug. The factory LS oil pump suffers from cavitation above 6,200 RPM, which results in a drop in oil flow of nearly 1 GPM by 7,000 RPM. This cavitation can also aerate the oil, which causes drops in oil pressure and can result in oil starvation. This is why we do not recommend shifting any higher than 6,200 RPM with a stock engine. Engines that run at RPM's above 6,200 should use an upgraded Melling pump to prevent these issues. This pump is suitable for engines that feature Active Fuel Management (AFM). Engines without AFM/DOD should use a lower flow pump. See Melling p/n 689-M295, 689-10295 or 689-10296.

    Features:

    • 43 PSI Pressure Relief Valve Spring
    • 1.28 Displ (cuin/rev)
    • The cast aluminum housing is CNC machined and hardcoat anodized
    • The cast iron cover is CNC machined and phosphate coated. The cover also features countersunk screws for more timing cover clearance.
    • The relief valve features a screw in valve plug with the optional lower stock pressure spring supplied
    • Compatible with factory GM oil pickup tubes


    Fits GM LS and Vortec engines that feature AFM/DOD Applications:

    • Vortec 5300 LS4, LH6 2005-2006



     

     

     

     

     

     

    Specifications:

    Manufacturer's Part Number:
    M355

    Melling Automotive Products is the largest manufacturer of new replacement oil pumps. They pioneered the design of high-volume oil pumps, which have 25% more volume than original equipment. All Melling Oil Pumps are 100% pressure tested and hand-turned before shipping to ensure quality. These pumps are not recommended for off-road or high-performance vehicles, if you need an oil pump for off-road and high-performance applications check out Melling Select Oil Pumps.

    Features:
  • Manufactured using high quality components
  • Available in direct OE Replacement or High-Volume for most popular applications
  • 100% Pressure Tested and Hand Turned to ensure quality
  • Perfect for everyday driver or mild performance engine builds

  • Does Melling M355 fit your vehicle?

    Narrow Results

    2005 BUICK RAINIER

    • CC: 5328
    • Liter: 5.3
    • SubModel: CXL PLUS
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2003 ISUZU ASCENDER

    • CC: 5328
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005 ISUZU ASCENDER

    • EngineType: ALL
    • SubModel: LIMITED

    2005-2006 GMC ENVOY XL

    • EngineType: ALL
    • SubModel: DENALI

    2005-2006 CHEVROLET TRAILBLAZER EXT

    • Liter: 5.3
    • SubModel: LT
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005 GMC ENVOY XL

    • Liter: 5.3
    • SubModel: SLT
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2003-2004 ISUZU ASCENDER

    • CC: 5328
    • Liter: 5.3
    • SubModel: LIMITED
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005 GMC ENVOY XUV

    • Liter: 5.3
    • SubModel: SLE
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2006 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: SS

    2005 GMC ENVOY XUV

    • Liter: 5.3
    • SubModel: SLT
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005-2006 CHEVROLET TRAILBLAZER EXT

    • Liter: 5.3
    • SubModel: LS
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005 SAAB 9-7X

    • EngineType: ALL
    • SubModel: ARC

    2005-2006 GMC ENVOY

    • EngineType: ALL
    • SubModel: DENALI

    2006 CHEVROLET TRAILBLAZER

    • CC: 5328
    • Liter: 5.3
    • SubModel: LT
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005-2006 BUICK RAINIER

    • CC: 5328
    • Liter: 5.3
    • SubModel: CXL
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2006-2007 SAAB 9-7X

    • EngineType: ALL
    • SubModel: 5.3I

    2005 GMC ENVOY XL

    • Liter: 5.3
    • SubModel: SLE
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2006 CHEVROLET IMPALA

    • CC: 5328
    • Liter: 5.3
    • SubModel: SS
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005 ISUZU ASCENDER

    • CC: 5328
    • Liter: 5.3
    • SubModel: S
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2003-2006 ISUZU ASCENDER

    • CC: 5328
    • Liter: 5.3
    • SubModel: LS
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    2005-2006 PONTIAC GRAND PRIX

    • EngineType: ALL
    • SubModel: GXP

    2006 CHEVROLET TRAILBLAZER

    • CC: 5328
    • Liter: 5.3
    • SubModel: LS
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )
    Some parts are not legal for use in California or other states with similar laws / regulations