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Thumbnail Filmstrip of Duramax 2001-10 Improved Gerotor Style High RPM Oil Pump Melling M561 Images
Protecting the lifeblood of your Duramax engine, the Melling M561 Oil Pump is the essential upgrade for 2001-2010 6.6L models (LB7, LLY, LBZ, LMM). This is not just a replacement; it's a critical performance enhancement that directly addresses the cavitation and erosion issues common in the older, original spur-gear style oil pumps. Melling has engineered the M561 with an advanced Gerotor-style internal design, a modern technology proven to maintain superior oil flow and pressure far beyond the RPM limits of the superseded M316 pump. For anyone pushing their Duramax hard or simply seeking maximum long-term reliability, this pump ensures consistent, clean oil delivery to all vital engine components, preventing catastrophic failure at high engine speeds where the stock pump often falls short.
The Melling M561 pump provides a superior solution through key engineering advancements:
- Improved Gerotor Design: Supersedes the less efficient spur-gear style, significantly increasing the cavitation RPM limit for reliable oiling at high engine speeds.
- Application: Direct fit for 2001-2010 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM).
- Performance Profile: Delivers Standard Volume and Standard Pressure, making it the perfect reliability upgrade without requiring additional tuning or system modifications.
- Construction: Features a robust, yet lighter Cast Aluminum Housing with billet steel gears for excellent durability and a long service life.
- Installation: A direct bolt-on replacement, compatible with stock timing components, and includes the necessary pickup gasket, block O-ring, and left-hand nut.
By upgrading to the Melling M561, you are investing in a proven component that was rigorously tested on a live-fire dyno and in professional trucks to ensure flawless functionality under extreme conditions. The advanced gerotor technology not only handles high RPMs more effectively but also allows Melling to use a robust cast aluminum body that prevents the erosion of the pump housing that plagues older designs, keeping harmful debris out of your lubrication system. Give your 6.6L Duramax the oil security it needs for both stock reliability and aggressive, high-performance operation with the M561.
Protecting the lifeblood of your Duramax engine, the Melling M561 Oil Pump is the essential upgrade for 2001-2010 6.6L models (LB7, LLY, LBZ, LMM). This is not just a replacement; it's a critical performance enhancement that directly addresses the cavitation and erosion issues common in the older, original spur-gear style oil pumps. Melling has engineered the M561 with an advanced Gerotor-style internal design, a modern technology proven to maintain superior oil flow and pressure far beyond the RPM limits of the superseded M316 pump. For anyone pushing their Duramax hard or simply seeking maximum long-term reliability, this pump ensures consistent, clean oil delivery to all vital engine components, preventing catastrophic failure at high engine speeds where the stock pump often falls short.
The Melling M561 pump provides a superior solution through key engineering advancements:
Improved Gerotor Design: Supersedes the less efficient spur-gear style, significantly increasing the cavitation RPM limit for reliable oiling at high engine speeds.
Application: Direct fit for 2001-2010 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM).
Performa[...]
Protecting the lifeblood of your Duramax engine, the Melling M561 Oil Pump is the essential upgrade for 2001-2010 6.6L models (LB7, LLY, LBZ, LMM). This is not just a replacement; it's a critical performance enhancement that directly addresses the cavitation and erosion issues common in the older, original spur-gear style oil pumps. Melling has engineered the M561 with an advanced Gerotor-style internal design, a modern technology proven to maintain superior oil flow and pressure far beyond the RPM limits of the superseded M316 pump. For anyone pushing their Duramax hard or simply seeking maximum long-term reliability, this pump ensures consistent, clean oil delivery to all vital engine components, preventing catastrophic failure at high engine speeds where the stock pump often falls short.
The Melling M561 pump provides a superior solution through key engineering advancements:
- Improved Gerotor Design: Supersedes the less efficient spur-gear style, significantly increasing the cavitation RPM limit for reliable oiling at high engine speeds.
- Application: Direct fit for 2001-2010 GM 6.6L Duramax engines (LB7, LLY, LBZ, LMM).
- Performance Profile: Delivers Standard Volume and Standard Pressure, making it the perfect reliability upgrade without requiring additional tuning or system modifications.
- Construction: Features a robust, yet lighter Cast Aluminum Housing with billet steel gears for excellent durability and a long service life.
- Installation: A direct bolt-on replacement, compatible with stock timing components, and includes the necessary pickup gasket, block O-ring, and left-hand nut.
By upgrading to the Melling M561, you are investing in a proven component that was rigorously tested on a live-fire dyno and in professional trucks to ensure flawless functionality under extreme conditions. The advanced gerotor technology not only handles high RPMs more effectively but also allows Melling to use a robust cast aluminum body that prevents the erosion of the pump housing that plagues older designs, keeping harmful debris out of your lubrication system. Give your 6.6L Duramax the oil security it needs for both stock reliability and aggressive, high-performance operation with the M561.