If i order this today, and i and other will if the answer to my question is yes, will i actually recieve a gates 42134 with a cast impeller?

I have ordered these pumps the ones with the casting # on the body 5729 in most cases have the cast impeller. Out 4 in my bin two (2) have cast impellers and two (2) have the stamped steel impellers. It is easier to print the Gates boxes in you know where. Picture in the example appears to be cast, note the fine machining marks on the disc.

Does this unit have a cast impeller ??

Ordered in May 2022 and the one I received does NOT have a cast impeller but the picture on the Amazon ad shows one.

does it come with a gasket?

Comes with three (3) gaskets (including the straight rubber one) and the water pipe o-ring.

Can anyone attest too these pumps not leaking?

Had mine in 05 MiTaspeed for over one year, no problems.

Gates 42134 Water Pump | Desertcart Portugal

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Description

⚙️ Upgrade your ride with precision power — don’t get left behind!

TRUSTED BRAND QUALITY - Gates’ reputation guarantees premium parts that professionals rely on.
PERFECT FIT FOR MAZDA MIATA - Seamless compatibility with 99 and 2004 Mazda Miata models for hassle-free upgrades.
COMPACT LIGHTWEIGHT DESIGN - Optimized dimensions and weight make installation quick and effortless.
COMPLETE TIMING SYSTEM UPGRADE - Pairs perfectly with Gates pulleys and belts for a full timing belt replacement.
ENGINEERED FOR PEAK PERFORMANCE - Durable aluminum alloy ensures long-lasting reliability under pressure.

The Gates-42134 Water Pump is a high-quality, aluminum alloy pump designed specifically for Mazda Miata models (1999 and 2004). Weighing just 2.8 pounds and measuring 9.6 x 6.0 x 5.3 inches, it offers a perfect fit and durable performance. Backed by a 4.4-star rating from over 100 users, this pump is a trusted choice for professional-grade timing belt and water pump replacements.

Specifications

ASIN	B000C2W91E
Brand Name	Gates
Compatible with Vehicle Type	Car
Customer Reviews	4.4 4.4 out of 5 stars (113)
Global Trade Identification Number	00072053782622
Included Components	Water Pump
Item Type Name	Water Pump
Item Weight	2.8 Pounds
Manufacturer	Gates
Manufacturer Part Number	42134
Material Type	Aluminum Alloy Steel
Model Number	42134
UPC	072053782622
Weight Class	Heavy Weight

Reviews

S**R

Great gasket’s and water pump for 99 Mazda Miata!! Would definitely recommend this for timing and water pump change out!! Best brand of water pump, pulley's and belts to complete timing belt replacement on 99 Mazda Miata!! Great fit, and value for quality parts!!

26.01.2026

M**5

Fits my2004miats perfectly.

14.09.2023

D**.

Fitted perfectly on my 99 miata.

23.12.2016

J**S

This water pump is the perfect replacement for the 1.8L NB Miata. Gates is a trusted and dependable brand.

16.11.2025

S**T

This pump had been previously installed and returned with gasket material stuck to surfaces. No gaskets included in box. Quality control, people!! Will be buying from a local supplier instead.

6.09.2021

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