Thermostat 8971606540 Fit for Isuzu 3LD1 3LD2 Engine 76.5℃
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Thermostat for Isuzu 3LD1 3LD2 Engine
This thermostat, with part number 8971606540, is a replacement cooling component for Isuzu 3LD1 and 3LD2 engines, regulating coolant flow to maintain operating temperature at 76.5°C.
Overview
This thermostat for Isuzu 3LD1 and 3LD2 engines controls the flow of engine coolant to maintain the optimal operating temperature. Constructed with a wax-pellet element that opens at 76.5°C, it ensures efficient warm-up and stable thermal regulation. This thermostat for Isuzu engines is a direct service replacement for part number 8971606540, helping to prevent overheating and excessive engine wear.
Built For Performance
- Precision-calibrated opening temperature of 76.5°C for accurate engine temperature control
- Cross-referenced to OEM part number 8971606540 for Isuzu fitment
- Durable alloy housing resists corrosion and thermal stress
- Wax-pellet actuator provides consistent and reliable operation
- Engineered to maintain proper coolant flow across varying load conditions
Fits These Machines
- for Isuzu 3LD1 engine
- for Isuzu 3LD2 engine
On-The-Job Use
- Installed in excavators, generators, and industrial equipment powered by Isuzu 3LD1 or 3LD2 engines
- Used during cooling system service to restore proper warm-up time
- Replaces a stuck-open or stuck-closed thermostat to prevent engine temperature issues
- Applied in diesel-powered machinery operating in construction and agricultural settings
Specs At A Glance
| Part Number(s) | 8971606540 |
| Opening Temperature | 76.5°C |
| Compatible Brand | Isuzu |
| Engine Fitment | 3LD1, 3LD2 |
Good To Know
Q: What are signs that this thermostat needs replacement? A: Symptoms include slow engine warm-up, fluctuating temperature gauge readings, or overheating during operation. A faulty thermostat for Isuzu engines can cause poor fuel economy and increased emissions.
Q: Is installation straightforward for this thermostat? A: The thermostat mounts in the coolant housing of the 3LD1 or 3LD2 engine and can be replaced using basic hand tools. Always use a new gasket and bleed the cooling system after installation to ensure proper operation.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.