Heating and Cooling› Water Pumps

Melling

LS Gen III/IV Water Pump

$126.99

SKU: MWP502

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Melling MWP502 is a water pump designed for Gen III/Gen IV LS engines. This cast aluminum water pump is assembled and tested in Jackson, Michigan, and features OE quality components, including seals and bearings. It is 100% factory leak tested to ensure OEM dependability.
Show original supplier description
The Melling MWP502 is a cast aluminum water pump engineered for Gen III and Gen IV LS engine applications. Assembled and tested in Jackson, Michigan, this water pump is built to provide reliable engine cooling. It features OE quality seals that offer exceptional heat transfer and low friction, along with severe-duty, precision-ground bearings and heat-treated bearing shafts. This Melling water pump undergoes 100% factory leak testing to ensure dependable performance and meets OE approved quality standards. It is designed as a direct replacement and does not include a thermostat. The pump is manufactured in the US and is legal for sale and use in all 50 states, with replacement parts included. Key specifications include a cast aluminum housing and a 6.582-inch hub height. The fan clutch is not included with this water pump.

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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandMelling
Part NumberMWP502
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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