Engines and Components› Oiling Systems

Melling

Oil Pump

$165.59

SKU: M00L 10555ST

In Stock
In Stock
Ships by Nov 6
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Melling 10555ST is a high-pressure oil pump designed for Small Block Chevy engines. It features helical asymmetrical gear technology and offers 25% higher volume output than stock pumps. This pump has a 0.75-inch inlet size and a cast iron housing with a cover.
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Part #: 10555ST

Made in USA. Melling high performance oil pumps provide dependable performance every time in every application under the toughest RPM conditions. The Melling high performance cast iron oil pump series features a doweled housing and cover, extended drive and idler shafts for additional support at increased RPM's, a screw in relief spring plug, CNC machined cover and housing that is manganese phosphate coated, standard volume and high volume patented billet Shark Tooth gears, and a chrome moly drive shaft with steel guide. Includes lower pressure spring and self locking socket head bolts with wrench for use with bolt on screen pumps. Every Melling high performance oil pump is individually tested for pressure and flow under actual engine operating conditions. Melling high performance Shark Tooth oil pumps are recommended for all applications where a high performance oil pump is needed.

Features:

  • Features billet steel "Shark Tooth" helical gears.
  • Includes +10PSI higher pressure relief spring and optional -10PSI relief spring.
  • Cover is doweled to the pump housing to assure alignment of the shaft bores.
  • Screw in plug retains relief valve spring instead of pin.
  • Relief hole in cover uses screw in plug instead of pressed cup plug.
  • Extended drive and idler shaft for additional support in the cover eliminating dynamic shfaft deflection at increased RPM levels.
  • Includes 12550 chrome moly intermediate shaft with steel guide.
  • Housing and Cover are CNC machined and phosphate coated.

10555ST High Performance, High Volume, High Pressure, Billet Steel Oil Pump With Gasket

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMelling
Part NumberM00L 10555ST

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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