E3SP Complete Billet Water Pump Assembly - 6061-T6 | Hard-Anodised

Introducing the E3SP Complete Billet Water Pump Assembly!
 
A true motorsport-grade, lifetime-serviceable, precision-engineered solution for the 3000GT / Stealth / GTO
With OEM pumps discontinued and aftermarket units compromised in quality, we decided once again to take matters into our own hands and build the ultimate water pump.
 
Every component has been re-engineered from the ground up using advanced materials, premium bearings, ultra-precise tolerances, and sealing technology far beyond OEM spec.
This is not a replacement.
This is an upgrade.
Carved From Strength. Built For Endurance.
 
The E3SP Billet Water Pump Assembly is precision-machined entirely from Aerospace-grade 6061-T6 billet Aluminum, Type III hard-anodised for extreme wear protection and corrosion resistance.
 
Combined with a redesigned impeller, high-performance bearing, and a premium SiC/Carbon mechanical seal, this pump is engineered to outlast and outperform every OEM and aftermarket unit ever produced!
 
Serviceable For Life
Every pump can be fully rebuilt using our affordable rebuilt kit - bearing, mechanical seal, o-ring and gaskets. (will be sold separately at a price of 79EUR. excl. VAT)
A true, lifetime component for your 3000GT.
 
Key Features
Billet 6061-T6 Front & Rear Housings
Type III Hard Anodised Black
Precision CNC machined for perfect geometry and zero distortion
All sealing surfaces left raw-machined for ideal gasket compression
0.05mm flatness tolerance on gasket faces
OEM bolt pattern – 100% direct replacement
 
High-Flow Billet Impeller
Redesigned geometry for improved coolant delivery
Perfect concentricity and minimal tip clearance
Balanced and interference-fit to shaft
 
Premium Bearing
Ball + Roller hybrid bearing system
High-frequency induction hardened races
Superior to OEM Koyo units, which are now discontinued
Designed for high RPM stability and long service life
 
Racing-Grade Mechanical Seal
Silicon Carbide vs Hard Carbon sealing pair
HNBR elastomers
Stainless wave spring
Ultra-low leakage, high-temperature capable
Motorsport-grade longevity
 
Rear Pulley for the Timing Belt
Machined from solid 6061-T6 for maximum rigidity
Perfectly concentric with the bearing shaft for smooth belt tracking
FEA tested to withstand 10,000+ N belt tension loads (way above what it will ever see)
Hard anodised for superior wear resistance
Lighter than the OEM steel pulley to reduce rotational mass
 
Direct OEM Fitment
Bolts directly to any 3000GT / GTO / Stealth DOHC engine
Zero modifications, zero compromises
 
Lifetime Durability
Zero corrosion
Zero casting defects
Zero warping
Designed, tested, and developed by enthusiasts - not resellers
 
THIS IS A PRE-ORDER!
The estimated delivery window for this pump is February – March 2026, due to the extended production lead time of the custom bearings.
Please keep this in mind before placing your order.
 
Important:
This preorder can only be cancelled and refunded in the event of non-delivery by the end of April 2026.
By placing your preorder, you agree to these terms.
 
The preorder price for the first 10 units is heavily reduced as our way of supporting you — the enthusiasts who make this journey possible.
 
And as a thank you:
Everyone who joins this preorder will receive one complete rebuild kit included with their pump. This kit contains both gaskets, the SiC–Carbon mechanical seal, and the premium bearing.
This means that for the next 60k service you won't spent a dime on a water pump!

Most of the images here are 3D Renders. The actual product may vary in color and properties.