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ACKOJA A38-99-0005 Engine Coolant Thermostat
| Brand | ACKOJA A38-99-0005 |
|---|---|
| Product line | ACKOJA |
| Fits | INFINITI and Nissan · 28 vehicles |
OE reference. Cataloged to match OE number 2120085 for application verification.
Cooling system control. Regulates coolant flow to help maintain proper operating temperature.
ACKOJA replacement. Part number A38-99-0005 for select thermostat applications.
Cross-references Dorman - HELP 92439, Gates 38106 and LIQUI MOLY 2259 for the same application. See all 32.
Engine Coolant Thermostat Overview
ACKOJA A38-99-0005 is an engine coolant thermostat for select Nissan and INFINITI applications. It is listed with OE reference 2120085 and is built for direct replacement use in the cooling system.
Key Features
- Engine coolant thermostat for temperature control in the cooling circuit
- OE reference 2120085 for application matching
- Fits select Nissan and INFINITI models from 1995-2004
- ACKOJA replacement part number A38-99-0005
Detailed Description
This thermostat helps regulate coolant flow so the engine can reach and maintain its operating temperature. Compatible With 1999-2004 Nissan Frontier, N/A; 2000-2004 Nissan Xterra, N/A; 1995-2002 Nissan Quest, N/A; 1997-2000 INFINITI QX4, N/A; and 1996-2000 Nissan Pathfinder, N/A. The part number A38-99-0005 and OE reference 2120085 make it easier to verify the correct cooling-system application before installation. ACKOJA A38-99-0005 is a practical replacement for drivers servicing a Nissan Pathfinder, Nissan Frontier, or INFINITI QX4 cooling system.
Common Issues This Part Addresses
- Engine running too cool or taking too long to warm up
- Temperature fluctuations caused by a thermostat that no longer opens and closes correctly
- Cooling-system performance problems tied to incorrect coolant flow control
- Replacement needs when the original thermostat matches OE reference 2120085
Installation Notes and Tips
Verify the OE number and vehicle application before installation. Drain coolant as required by the service procedure, inspect the thermostat housing and sealing surfaces, and refill the cooling system according to manufacturer specifications after installation. Confirm proper warm-up and operating temperature once the repair is complete.
Quality Assurance
ACKOJA identifies this part with OE reference 2120085 for application matching and catalog verification. Part number A38-99-0005 should be checked against the vehicle’s cooling-system specification before purchase and installation.
| Year | Make | Model | Submodel | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2004 | Nissan | Frontier | XE | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2004 | Nissan | Xterra | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2003 | Nissan | Frontier | XE | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2003 | Nissan | Xterra | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2002 | Nissan | Frontier | XE | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2002 | Nissan | Quest | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2002 | Nissan | Xterra | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2001 | Nissan | Frontier | XE | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2001 | Nissan | Quest | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2001 | Nissan | Xterra | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2000 | INFINITI | QX4 | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2000 | Nissan | Frontier | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2000 | Nissan | Pathfinder | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2000 | Nissan | Quest | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 2000 | Nissan | Xterra | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1999 | INFINITI | QX4 | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1999 | Nissan | Frontier | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1999 | Nissan | Pathfinder | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1999 | Nissan | Quest | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1998 | INFINITI | QX4 | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1998 | Nissan | Pathfinder | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1998 | Nissan | Quest | — | 3.0L | V6 | With OE No. 2120085; ACKOJA |
| 1997 | INFINITI | QX4 | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1997 | Nissan | Pathfinder | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1997 | Nissan | Quest | — | 3.0L | V6 | With OE No. 2120085; ACKOJA |
| 1996 | Nissan | Pathfinder | — | 3.3L | V6 | With OE No. 2120085; ACKOJA |
| 1996 | Nissan | Quest | — | 3.0L | V6 | With OE No. 2120085; ACKOJA |
| 1995 | Nissan | Quest | — | 3.0L | V6 | With OE No. 2120085; ACKOJA |
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