Isuzu Parts Guide
Isuzu Lower Water Outlet Housing 8-97916700-0: Match the Part Before Ordering
A practical pre-order guide to matching Isuzu lower water outlet housing 8-97916700-0 by part number, engine, vehicle details, and the removed component.
# Isuzu Lower Water Outlet Housing 8-97916700-0: Match the Part Before Ordering
Cooling-system housings can look similar while differing in mounting points, hose connections, or the applications they serve. That makes identification more useful than ordering from a broad vehicle name alone. This guide focuses on the **Genuine Isuzu D-Max / TFR Lower Water Outlet Housing 4JA1 2.5 2.8 1997-2002 - 8-97916700-0**, listed in the **Isuzu** category by TAP Auto Parts. The product page is [available here](https://tap-autoparts.com/products/genuine-isuzu-lower-water-outlet-housing-8979167000).
The listing identifies this component as a lower water outlet housing, also described as a lower thermostat housing. Its OEM/MPN is **8-97916700-0**, and the compact product information also presents the continuous number **8979167000**. The listed application references Isuzu D-Max and TFR vehicles, the 4JA1 engine, 2.5 and 2.8 variants, and model years 1997-2002. Treat every one of those references as a verification lead, not as permission to skip a physical comparison. Vehicle registrations, engine swaps, production changes, and previous repairs can make a name-and-year search incomplete.
Start with the strongest identifier
Compare the number on the old component, its label, the original packaging, or a reliable parts record with **8-97916700-0**. A catalog may remove the hyphens and show **8979167000**; the digits should still match in the same order. Do not assume that a number differing by one digit is an acceptable revision or substitute. If the removed housing has no readable number, use the vehicle identification number and engine information when asking a parts specialist to check the catalog.
The product name includes 4JA1, 2.5, 2.8, D-Max, TFR, and 1997-2002. Confirm the actual engine designation rather than relying only on displacement or body style. A vehicle advertised as a 2.5 or 2.8 may have a different engine family, and an older vehicle may no longer have its factory engine. Check the engine code at a reliable identification point or in trustworthy vehicle records.
Compare the removed housing
Before installation, place the replacement and removed part in the same orientation and compare them without forcing any connection. Check the overall casting shape, mounting-hole count and positions, hose outlet direction, sealing face, recesses, and any threaded openings. Confirm that attached or transferred hardware has the correct location and thread. A close visual resemblance is not enough if a port points differently or a mounting hole does not align.