The 2000 Isuzu Trooper has 108 cooling system parts with verified fitment on this page — 16 part types and 42 brands, covering the 3.5L V6 engine. Each part includes a manufacturer part number and application notes.
On the 2000 Isuzu Trooper, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. 49 parts of the 108 listed are Temperature Sender / Sensor (26 parts), Coolant / Antifreeze (15 parts) and Radiator Cap (8 parts). The other 13 part types cover the remaining 59 parts.
The 2000 Isuzu Trooper came with a single engine, the 3.5L V6, and every part is verified against it.
42 brands supply cooling system parts for the 2000 Isuzu Trooper, led by GATES (9 parts), BECK/ARNLEY (8 parts) and PRESTONE (6 parts), plus 39 more brands. Quality grades include Standard Replacement, Economy and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2000 Isuzu Trooper. 21 parts have it, including FVP MV5050GAL (Coolant / Antifreeze) and DAYCO 80394 (Coolant Hose / Pipe). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE | 719009 | 🇺🇸 US 🇨🇦 CA | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AF6610 | 🇺🇸 US 🇨🇦 CA | MAX Asian Green1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 2521501 | 🇺🇸 US 🇨🇦 CA | Premium Extra Life BlueAsian | View on Amazon |
| BECK/ARNLEY | 2521001 | 🇺🇸 US 🇨🇦 CA | Premium Green1 Gallon | View on Amazon |
| PEAK | PDC1GAL | 🇺🇸 US 🇨🇦 CA | GM DEX-Cool1 Gallon | View on Amazon |
| VALVOLINE | 861399 | 🇺🇸 US 🇨🇦 CA | G40 Pink1 Gallon | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
15 Coolant / Antifreeze parts are listed for the 2000 Isuzu Trooper, from PRESTONE, PEAK, VALVOLINE and 2 other brands. FVP MV5050GAL carries the "Popular" badge.
The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.
In the Economy grade, FVP, PRESTONE, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.
The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.
The Premium section lists 5 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.
The Standard Replacement section lists 4 options from BECK/ARNLEY, PEAK and VALVOLINE — built to original-equipment specification. BECK/ARNLEY 2521501 is listed in this group.
Coolant Hose / Pipe
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO | 80394CS | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 80394 | 🇺🇸 US 🇨🇦 CA | Cut to fit | View on Amazon |
| ACDELCO | 14064S | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 63963 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| GATES | 18421 | 🇺🇸 US 🇨🇦 CA | Molded1/2" x 8" | View on Amazon |
This table covers the hard pipes and extra hoses in the coolant circuit.
5 Coolant Hose / Pipe parts are listed for the 2000 Isuzu Trooper, from DAYCO, ACDELCO, CONTINENTAL and 1 other brand. DAYCO 80394 carries the "Popular" badge.
Economy: 1 part, from DAYCO. A representative part number is DAYCO 80394CS.
The Standard Replacement section: 4 options from DAYCO, ACDELCO, CONTINENTAL and 1 other brand. DAYCO 80394 is listed in this group.
Part numbers include DAYCO 80394, DAYCO 80394CS and ACDELCO 14064S, among others listed above.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO | IZ3014102 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
This group shows a single part: TECHPRO IZ3014102.
Cooling Fan Control Module
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| US MOTOR WORKS | 16749 | 🇺🇸 US 🇨🇦 CA | Econo Control | View on Amazon |
| US MOTOR WORKS | 16779 | 🇺🇸 US 🇨🇦 CA | Better Control | View on Amazon |
| US MOTOR WORKS | 16795 | 🇺🇸 US 🇨🇦 CA | Best Control | View on Amazon |
This table covers the Cooling Fan control modules.
3 Cooling Fan Control Module parts for the 2000 Isuzu Trooper come from US MOTOR WORKS.
Listed part numbers: US MOTOR WORKS 16749, US MOTOR WORKS 16779 and US MOTOR WORKS 16795.
Cooling System Tester Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GATES | 31428 | 🇺🇸 US 🇨🇦 CA | May Require Spacer Number 31416 | View on Amazon |
| MOTORAD | 3121 | 🇺🇸 US 🇨🇦 CA | StandardRadiator Cap Adapter | View on Amazon |
| MOTORAD | 3122 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| STANT | 12021 | 🇺🇸 US 🇨🇦 CA | Radiator Cap/Cooling System Tester Adapter | View on Amazon |
This table covers the adapters used to pressure-test this cooling system.
4 Cooling System Tester Adapter parts are listed for the 2000 Isuzu Trooper, from MOTORAD, GATES and STANT.
Listed part numbers: GATES 31428, MOTORAD 3121 and MOTORAD 3122, plus the other parts above.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KOYORAD Popular | A2221 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| AGILITY | 8011302 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FVP | RAD1302 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| OSC | 1302 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | CU1302 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
5 Radiator parts are listed for the 2000 Isuzu Trooper, from KOYORAD, AGILITY, FVP and 2 other brands. KOYORAD A2221 carries the "Popular" badge.
Part numbers include KOYORAD A2221, AGILITY 8011302 and FVP RAD1302, among others listed above.
Radiator Cap
Locking Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0212 | 🇺🇸 US 🇨🇦 CA | PerformanceIncludes 2 seals | View on Amazon |
| GATES | 31534 | 🇺🇸 US 🇨🇦 CA | Safety Release Radiator Cap | View on Amazon |
| MOTORAD | ST16R | 🇺🇸 US 🇨🇦 CA | Safety LeverIndicator Markings Color: Blue, Red | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Popular | T16R | 🇺🇸 US 🇨🇦 CA | StandardIndicator Markings Color: Silver | View on Amazon |
| SKP Popular | SK10233 | 🇺🇸 US 🇨🇦 CA | Pressure Rating 16 psi | View on Amazon |
| CALORSTAT | RC0027 | 🇺🇸 US 🇨🇦 CA | Includes 2 sealsMetallic | View on Amazon |
| CSF | 4503 | 🇺🇸 US 🇨🇦 CA | Mini, 16 PSI | View on Amazon |
| GATES | 31336 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
8 Radiator Cap parts are listed for the 2000 Isuzu Trooper, from CALORSTAT, GATES, MOTORAD and 2 other brands. MOTORAD T16R carries the "Popular" badge.
The Locking Replacement section lists 3 options from CALORSTAT, GATES and MOTORAD — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. CALORSTAT RC0212 is listed in this group.
The Standard Replacement section: 5 options from MOTORAD, SKP, CALORSTAT and 2 other brands. MOTORAD T16R is listed in this group.
Part numbers include MOTORAD T16R, CALORSTAT RC0212 and GATES 31534, among others listed above.
Radiator Fan Clutch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HAYDEN Popular | 2672 | 🇺🇸 US 🇨🇦 CA | ThermalStandard Duty | View on Amazon |
| US MOTOR WORKS Popular | 22022 | 🇺🇸 US 🇨🇦 CA | Thermal | View on Amazon |
| FOUR SEASONS | 36757 | 🇺🇸 US 🇨🇦 CA | Standard Duty Thermal | View on Amazon |
| FVP | 22022 | 🇺🇸 US 🇨🇦 CA | Thermal | View on Amazon |
| FVP | 9352010 | 🇺🇸 US 🇨🇦 CA | ThermalStandard Duty | View on Amazon |
| GMB | 9352010 | 🇺🇸 US 🇨🇦 CA | Standard DutyThermal | View on Amazon |
| GPD | 2911314 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Radiator Fan clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc.
7 Radiator Fan Clutch parts are listed for the 2000 Isuzu Trooper, from FVP, HAYDEN, US MOTOR WORKS and 3 other brands. HAYDEN 2672 carries the "Popular" badge.
This group includes HAYDEN 2672, US MOTOR WORKS 22022 and FOUR SEASONS 36757 and the remaining parts above.
Radiator Fan Clutch Bearing Bracket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | FBG002 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DORMAN | 300805 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the brackets that mount the Radiator Fan Clutch Bearing. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.
2 Radiator Fan Clutch Bearing Bracket parts are listed for the 2000 Isuzu Trooper, from AISIN and DORMAN.
Listed part numbers: AISIN FBG002 and DORMAN 300805.
Radiator Hose
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DAYCO Popular | 70115 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES Popular | 21972 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| ACDELCO | 26212X | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| ACDELCO | 22380M | 🇺🇸 US 🇨🇦 CA | Professional / GoldMolded | View on Amazon |
| CONTINENTAL | 62049 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| CONTINENTAL | 60974 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
| DAYCO | 71665 | 🇺🇸 US 🇨🇦 CA | Curved | View on Amazon |
| GATES | 22555 | 🇺🇸 US 🇨🇦 CA | Molded | View on Amazon |
This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle.
8 Radiator Hose parts for the 2000 Isuzu Trooper come from 4 brands — DAYCO, GATES, ACDELCO and 1 other brand. The "Popular" part is DAYCO 70115.
This group includes DAYCO 70115, GATES 21972 and ACDELCO 26212X and the remaining parts above.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NTK Popular | EF0008 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyOval Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | TX3T | 🇺🇸 US 🇨🇦 CA | T-SeriesRound Connector | View on Amazon |
| GPD | 1711697 | 🇺🇸 US 🇨🇦 CA | with Oval Connectorwith 2 Terminal(s) | View on Amazon |
| HOLSTEIN | 2CTS0001 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP | SKTX3 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ULTRA-POWER | 5S1018 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| UNITED MOTOR PRODUCTS | CTS3 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| VEMO | V37720002 | 🇺🇸 US 🇨🇦 CA | Thread Size: M18 X 1.5Plug (Connector): 1 Pin | View on Amazon |
| VEMO | V407203301 | 🇺🇸 US 🇨🇦 CA | Thread Size: 3/8 X 18 NPTPlug (Connector): 2 Pins | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS | 21191012 | 🇺🇸 US 🇨🇦 CA | Full Service KitConnector Shape: Circle | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | 1551107 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| DELPHI Popular | TS10075 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK Popular | EF0074 | 🇺🇸 US 🇨🇦 CA | with Mating Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular | TX3 | 🇺🇸 US 🇨🇦 CA | Round Connector | View on Amazon |
| BECK/ARNLEY | 2011220 | 🇺🇸 US 🇨🇦 CA | Contains GaugeSwitch | View on Amazon |
| BECK/ARNLEY | 1580536 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FACET | 73080 | 🇺🇸 US 🇨🇦 CA | Terminals: 1 | View on Amazon |
| FOUR SEASONS | 36403 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA | 009107591 | 🇺🇸 US 🇨🇦 CA | 2-Pin ConnectorBolted | View on Amazon |
| ROSTRA | 680009 | 🇺🇸 US 🇨🇦 CA | Sender | View on Amazon |
| STANDARD MOTOR PRODUCTS | TX3K | 🇺🇸 US 🇨🇦 CA | INCLUDES CONNECTOR | View on Amazon |
| WALKER PRODUCTS | 2141011 | 🇺🇸 US 🇨🇦 CA | Sender Only or Sensor Only | View on Amazon |
| WALKER PRODUCTS | 2111012 | 🇺🇸 US 🇨🇦 CA | Sensor OnlyCircle Connector | View on Amazon |
| WELLS | 5S1018 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Oval | View on Amazon |
| WELLS | 1T1001 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Round | View on Amazon |
| WELLS | 5S1474 | 🇺🇸 US 🇨🇦 CA | with Mating Connector | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
26 Temperature Sender / Sensor parts are listed for the 2000 Isuzu Trooper, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 14 other brands. NTK EF0008 carries the "Popular" badge. Economy, Full Service Kit and Standard Replacement are all represented, and Standard Replacement alone accounts for 16 parts.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1430901 | 🇺🇸 US 🇨🇦 CA | OE TEMPERATURETemperature: 77C/170F | View on Amazon |
| CALORSTAT | TH747977J | 🇺🇸 US 🇨🇦 CA | 171.0 Degrees | View on Amazon |
| GATES | 33913 | 🇺🇸 US 🇨🇦 CA | OE Type | View on Amazon |
| MOTORAD | 418170 | 🇺🇸 US 🇨🇦 CA | Includes Seal | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
4 Thermostat parts for the 2000 Isuzu Trooper come from 4 brands — BECK/ARNLEY, CALORSTAT, GATES and 1 other brand.
Listed part numbers: BECK/ARNLEY 1430901, CALORSTAT TH747977J and GATES 33913, plus the other parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35615 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| APEX | AWO2182 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| BECK/ARNLEY | 0390134 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C31740 | 🇺🇸 US 🇨🇦 CA | Molded Rubber | View on Amazon |
| VICTOR REINZ | 711557500 | 🇺🇸 US 🇨🇦 CA | Thermostat Seal | View on Amazon |
This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2000 Isuzu Trooper, from FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. FEL-PRO 35615 carries the "Popular" badge.
Part numbers include FEL-PRO 35615, APEX AWO2182 and BECK/ARNLEY 0390134, among others listed above.
Thermostat Housing / Water Outlet
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 8241641 | 🇺🇸 US 🇨🇦 CA | Water Outlet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 86132 | 🇺🇸 US 🇨🇦 CA | Thermostat Housing | View on Amazon |
| GATES | CO34907 | 🇺🇸 US 🇨🇦 CA | Thermostat CoverWater Outlet | View on Amazon |
| MOTORAD | CH6132 | 🇺🇸 US 🇨🇦 CA | Fits Thermostat Housingor Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
4 Thermostat Housing / Water Outlet parts for the 2000 Isuzu Trooper come from 4 brands — GPD, FOUR SEASONS, GATES and 1 other brand.
The Economy section: 1 option from GPD. GPD 8241641 is listed in this group.
Standard Replacement: 3 parts, from FOUR SEASONS, GATES and MOTORAD. A representative part number is FOUR SEASONS 86132.
Part numbers include GPD 8241641, FOUR SEASONS 86132 and GATES CO34907, among others listed above.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1312269 | 🇺🇸 US 🇨🇦 CA | Includes Gasket | View on Amazon |
| US MOTOR WORKS | US9365 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Popular | WPG030 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GATES Popular | 42297 | 🇺🇸 US 🇨🇦 CA | Timing belt driven | View on Amazon |
| DAYCO | DP919 | 🇺🇸 US 🇨🇦 CA | Timing Belt Should be Replaced with Water Pump | View on Amazon |
| GMB | 1401440 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
6 Water Pump parts for the 2000 Isuzu Trooper come from 6 brands — BECK/ARNLEY, US MOTOR WORKS, AISIN and 3 other brands. The "Popular" part is AISIN WPG030.
The Economy section: 2 options from BECK/ARNLEY and US MOTOR WORKS. BECK/ARNLEY 1312269 is listed in this group.
Standard Replacement: 4 parts, from AISIN, GATES, DAYCO and 1 other brand. A representative part number is AISIN WPG030.
This group includes AISIN WPG030, BECK/ARNLEY 1312269 and US MOTOR WORKS US9365 and the remaining parts above.
Water Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Popular | 35593 | 🇺🇸 US 🇨🇦 CA | To Block | View on Amazon |
| APEX | AWP3121 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY | 0394117 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MAHLE / CLEVITE | K31464 | 🇺🇸 US 🇨🇦 CA | Beaded Paper | View on Amazon |
| VICTOR REINZ | 711558700 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the gaskets between the water pump and the block or housing. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Water Pump Gasket parts are listed for the 2000 Isuzu Trooper, from FEL-PRO, APEX, BECK/ARNLEY and 2 other brands. FEL-PRO 35593 carries the "Popular" badge.
This group includes FEL-PRO 35593, APEX AWP3121 and BECK/ARNLEY 0394117 and the remaining parts above.
Buying Cooling System Parts for a 2000 Isuzu Trooper
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 3.5L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Temperature Sender / Sensor and Coolant / Antifreeze .
Frequently Asked Questions
How many cooling system parts fit the 2000 Isuzu Trooper?
Our catalog currently lists 108 cooling system parts for the 2000 Isuzu Trooper across 16 subcategories and 42 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2000 Isuzu Trooper?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2000 Isuzu Trooper was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2000 Isuzu Trooper?
Every part on this page is matched to the 3.5L V6 engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2000 Isuzu Trooper
Cooling System Parts for Other Isuzu Trooper Years
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