2000 Isuzu NPR Cooling System Parts

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. Read more

14 Coolant / Antifreeze parts for the 2000 Isuzu NPR come from 4 brands — PRESTONE, PEAK, VALVOLINE and 1 other brand. The "Popular" part is FVP MV5050GAL.

In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.

The Economy section lists 4 options from FVP, PEAK, PRESTONE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.

In the Heavy Duty grade, PRESTONE and PEAK supply 3 parts: rated for severe service. A representative part number is PEAK FXA1GAL.

In the Premium grade, PRESTONE and PEAK supply 4 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.

In the Standard Replacement grade, VALVOLINE supplies 2 parts: built to original-equipment specification. A representative part number is VALVOLINE ZXEL1.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

One part is listed for the 2000 Isuzu NPR — DORMAN 6035603.

This table covers the caps on the overflow / expansion tank. 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. Read more

One part is listed for the 2000 Isuzu NPR — DORMAN 9241059.

This table covers the adapters used to pressure-test this cooling system. Read more

4 Cooling System Tester Adapter parts for the 2000 Isuzu NPR come from 3 brands — MOTORAD, GATES and STANT.

Part numbers include GATES 31428, MOTORAD 3121 and MOTORAD 3122, among others listed above.

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. Read more

7 Radiator parts for the 2000 Isuzu NPR come from 4 brands — GPD, CSF, OSC and 1 other brand. The "Popular" part is CSF 3243.

The Economy section: 3 options from GPD. GPD 9243242 is listed in this group.

In the Heavy Duty (All Metal Construction) grade, CSF supplies 1 part: rated for severe service. A representative part number is CSF 3243.

Standard Replacement: 3 parts, from CSF, OSC and UAC. A representative part number is CSF 3242.

Listed part numbers: CSF 3243, GPD 9243242 and GPD 9243243, plus the other parts above.

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. Read more

7 Radiator Cap parts for the 2000 Isuzu NPR come from 5 brands — GATES, MOTORAD, CALORSTAT and 2 other brands. The "Popular" part is MOTORAD T16R.

In the Locking Replacement grade, CALORSTAT, GATES and MOTORAD supply 3 parts: grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. A representative part number is CALORSTAT RC0212.

Standard Replacement: 4 parts, from MOTORAD, SKP, CSF and 1 other brand. A representative part number is MOTORAD T16R.

Part numbers include MOTORAD T16R, CALORSTAT RC0212 and GATES 31534, among others listed above.

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. Read more

4 Radiator Fan Clutch parts for the 2000 Isuzu NPR come from 4 brands — FOUR SEASONS, HAYDEN, NISSENS and 1 other brand.

Part numbers include FOUR SEASONS 36947, HAYDEN 2787 and NISSENS 86465, among others listed above.

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. Read more

8 Radiator Hose parts are listed for the 2000 Isuzu NPR, from DAYCO, CONTINENTAL, GATES and 1 other brand. CONTINENTAL 60773 carries the "Popular" badge.

This group includes CONTINENTAL 60773, GATES 22731 and ACDELCO 24484L and the remaining parts above.

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. Read more

8 Temperature Sender / Sensor parts for the 2000 Isuzu NPR come from 6 brands — STANDARD MOTOR PRODUCTS, WELLS, NTK and 3 other brands. The "Popular" part is NTK EF0008.

The Economy section: 4 options from NTK, GPD, STANDARD MOTOR PRODUCTS and 1 other brand. NTK EF0008 is listed in this group.

Standard Replacement: 4 parts, from WELLS, ROSTRA and STANDARD MOTOR PRODUCTS. A representative part number is WELLS 5S1018.

This group includes NTK EF0008, GPD 1711697 and STANDARD MOTOR PRODUCTS TS375T and the remaining parts above.

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. Read more

23 Thermostat parts are listed for the 2000 Isuzu NPR, from MOTORAD, CALORSTAT, GATES and 1 other brand. MOTORAD 5265195 carries the "Popular" badge.

The Heavy Duty section: 3 options from MOTORAD and GATES. MOTORAD 5265195 is listed in this group.

In the Performance grade, MOTORAD supplies 3 parts: engineered beyond original-equipment specification. A representative part number is MOTORAD 2065195.

The Premium section: 5 options from MOTORAD. MOTORAD 7228180 is listed in this group.

The Standard Replacement section: 12 options from MOTORAD, CALORSTAT, GATES and 1 other brand. MOTORAD 265180 is listed in this group.

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. Read more

2 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2000 Isuzu NPR come from 2 brands — FEL-PRO and MAHLE / CLEVITE.

This group includes FEL-PRO 35710 and MAHLE / CLEVITE C31273.

This table covers the housings and outlets the thermostat sits in. Read more

2 Thermostat Housing / Water Outlet parts are listed for the 2000 Isuzu NPR, from DORMAN and MOTORAD.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 902754.

The Standard Replacement section: 1 option from MOTORAD. MOTORAD CH5169 is listed in this group.

Part numbers include DORMAN 902754 and MOTORAD CH5169.

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. Read more

10 Water Pump parts are listed for the 2000 Isuzu NPR, from FVP, US MOTOR WORKS, GMB and 3 other brands. GATES 43315 carries the "Popular" badge.

Economy: 3 parts, from FVP, SKP and US MOTOR WORKS. A representative part number is FVP US5077.

In the High Volume / Pressure grade, FVP, GMB and US MOTOR WORKS supply 3 parts: grouped under the catalog's "High Volume / Pressure" designation — the notes column spells out what sets them apart. A representative part number is FVP US5077H.

The Standard Replacement section: 4 options from DAYCO, GATES and GMB. GATES 43315 is listed in this group.

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. Read more

5 Water Pump Gasket parts for the 2000 Isuzu NPR come from 2 brands — FEL-PRO and MAHLE / CLEVITE. The "Popular" part is FEL-PRO 5152.

Part numbers include FEL-PRO 5152, FEL-PRO 13032 and FEL-PRO ES73030, among others listed above.

This table covers the Water Pump Stud kits. Read more

One part is listed for the 2000 Isuzu NPR — DORMAN 902804.